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[7.x][DOCS] Move anomaly detection job resource definitions into APIs (#50490)

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Lisa Cawley 2019-12-27 13:30:26 -08:00 committed by GitHub
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1
docs/build.gradle
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@ -29,6 +29,7 @@ buildRestTests.expectedUnconvertedCandidates = [
'reference/ml/anomaly-detection/apis/get-category.asciidoc',
'reference/ml/anomaly-detection/apis/get-influencer.asciidoc',
'reference/ml/anomaly-detection/apis/get-job-stats.asciidoc',
'reference/ml/anomaly-detection/apis/get-job.asciidoc',
'reference/ml/anomaly-detection/apis/get-overall-buckets.asciidoc',
'reference/ml/anomaly-detection/apis/get-record.asciidoc',
'reference/ml/anomaly-detection/apis/get-snapshot.asciidoc',

18
docs/reference/ml/anomaly-detection/apis/close-job.asciidoc
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@ -60,25 +60,15 @@ results the job might have recently produced or might produce in the future.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}. It can be a job
identifier, a group name, or a wildcard expression.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection-wildcard]
[[ml-close-job-query-parms]]
==== {api-query-parms-title}
`allow_no_jobs`::
(Optional, boolean) Specifies what to do when the request:
+
--
* Contains wildcard expressions and there are no jobs that match.
* Contains the `_all` string or no identifiers and there are no matches.
* Contains wildcard expressions and there are only partial matches.
The default value is `true`, which returns an empty `jobs` array
when there are no matches and the subset of results when there are partial
matches. If this parameter is `false`, the request returns a `404` status code
when there are no matches or only partial matches.
--
(Optional, boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=allow-no-jobs]
`force`::
(Optional, boolean) Use to close a failed job, or to forcefully close a job

2
docs/reference/ml/anomaly-detection/apis/datafeedresource.asciidoc
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@ -50,7 +50,7 @@ A {dfeed} resource has the following properties:
`script_fields`::
(object) Specifies scripts that evaluate custom expressions and returns
script fields to the {dfeed}.
The <<ml-detectorconfig,detector configuration objects>> in a job can contain
The detector configuration objects in a job can contain
functions that use these script fields.
For more information, see
{ml-docs}/ml-configuring-transform.html[Transforming data with script fields].

3
docs/reference/ml/anomaly-detection/apis/delete-job.asciidoc
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@ -39,7 +39,8 @@ separated list.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-delete-job-query-parms]]
==== {api-query-parms-title}

3
docs/reference/ml/anomaly-detection/apis/flush-job.asciidoc
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@ -37,7 +37,8 @@ opened again before analyzing further data.
==== {api-path-parms-title}
`<job_id>`::
(string) Required. Identifier for the job.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-flush-job-query-parms]]
==== {api-query-parms-title}

5
docs/reference/ml/anomaly-detection/apis/forecast.asciidoc
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@ -29,7 +29,7 @@ See {ml-docs}/ml-overview.html#ml-forecasting[Forecasting the future].
===============================
* If you use an `over_field_name` property in your job, you cannot create a
forecast. For more information about this property, see <<ml-job-resource>>.
forecast. For more information about this property, see <<ml-put-job>>.
* The job must be open when you create a forecast. Otherwise, an error occurs.
===============================
@ -37,7 +37,8 @@ forecast. For more information about this property, see <<ml-job-resource>>.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the job.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-forecast-request-body]]
==== {api-request-body-title}

3
docs/reference/ml/anomaly-detection/apis/get-bucket.asciidoc
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@ -36,7 +36,8 @@ bucket.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
`<timestamp>`::
(Optional, string) The timestamp of a single bucket result. If you do not

3
docs/reference/ml/anomaly-detection/apis/get-category.asciidoc
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@ -35,7 +35,8 @@ For more information about categories, see
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
`<category_id>`::
(Optional, long) Identifier for the category. If you do not specify this

3
docs/reference/ml/anomaly-detection/apis/get-influencer.asciidoc
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@ -27,7 +27,8 @@ privileges. See <<security-privileges>> and
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-get-influencer-request-body]]
==== {api-request-body-title}

20
docs/reference/ml/anomaly-detection/apis/get-job-stats.asciidoc
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@ -40,26 +40,15 @@ IMPORTANT: This API returns a maximum of 10,000 jobs.
==== {api-path-parms-title}
`<job_id>`::
(Optional, string) An identifier for the {anomaly-job}. It can be a
job identifier, a group name, or a wildcard expression. If you do not specify
one of these options, the API returns statistics for all {anomaly-jobs}.
(Optional, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection-default]
[[ml-get-job-stats-query-parms]]
==== {api-query-parms-title}
`allow_no_jobs`::
(Optional, boolean) Specifies what to do when the request:
+
--
* Contains wildcard expressions and there are no jobs that match.
* Contains the `_all` string or no identifiers and there are no matches.
* Contains wildcard expressions and there are only partial matches.
The default value is `true`, which returns an empty `jobs` array
when there are no matches and the subset of results when there are partial
matches. If this parameter is `false`, the request returns a `404` status code
when there are no matches or only partial matches.
--
(Optional, boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=allow-no-jobs]
[[ml-get-job-stats-results]]
==== {api-response-body-title}
@ -68,7 +57,6 @@ The API returns the following information:
`jobs`::
(array) An array of {anomaly-job} statistics objects.
For more information, see <<ml-jobstats>>.
[[ml-get-job-stats-response-codes]]
==== {api-response-codes-title}

91
docs/reference/ml/anomaly-detection/apis/get-job.asciidoc
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@ -40,35 +40,40 @@ IMPORTANT: This API returns a maximum of 10,000 jobs.
==== {api-path-parms-title}
`<job_id>`::
(Optional, string) Identifier for the {anomaly-job}. It can be a job
identifier, a group name, or a wildcard expression. If you do not specify one
of these options, the API returns information for all {anomaly-jobs}.
(Optional, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection-default]
[[ml-get-job-query-parms]]
==== {api-query-parms-title}
`allow_no_jobs`::
(Optional, boolean) Specifies what to do when the request:
+
--
* Contains wildcard expressions and there are no jobs that match.
* Contains the `_all` string or no identifiers and there are no matches.
* Contains wildcard expressions and there are only partial matches.
The default value is `true`, which returns an empty `jobs` array
when there are no matches and the subset of results when there are partial
matches. If this parameter is `false`, the request returns a `404` status code
when there are no matches or only partial matches.
--
(Optional, boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=allow-no-jobs]
[[ml-get-job-results]]
==== {api-response-body-title}
The API returns the following information:
The API returns an array of {anomaly-job} resources. For the full list of
properties, see <<ml-put-job-request-body,create {anomaly-jobs} API>>.
`jobs`::
(array) An array of {anomaly-job} resources.
For more information, see <<ml-job-resource>>.
`create_time`::
(string) The time the job was created. For example, `1491007356077`. This
property is informational; you cannot change its value.
`finished_time`::
(string) If the job closed or failed, this is the time the job finished.
Otherwise, it is `null`. This property is informational; you cannot change its
value.
`job_type`::
(string) Reserved for future use, currently set to `anomaly_detector`.
`job_version`::
(string) The version of {es} that existed on the node when the job was created.
`model_snapshot_id`::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-snapshot-id]
[[ml-get-job-response-codes]]
==== {api-response-codes-title}
@ -80,53 +85,65 @@ The API returns the following information:
[[ml-get-job-example]]
==== {api-examples-title}
The following example gets configuration information for the `total-requests` job:
[source,console]
--------------------------------------------------
GET _ml/anomaly_detectors/total-requests
GET _ml/anomaly_detectors/high_sum_total_sales
--------------------------------------------------
// TEST[skip:setup:server_metrics_job]
// TEST[skip:Kibana sample data]
The API returns the following results:
[source,console-result]
[source,js]
----
{
"count": 1,
"jobs": [
{
"job_id": "total-requests",
"job_id" : "high_sum_total_sales",
"job_type" : "anomaly_detector",
"job_version": "7.0.0-alpha1",
"description": "Total sum of requests",
"create_time": 1517011406091,
"job_version" : "7.5.0",
"groups" : [
"kibana_sample_data",
"kibana_sample_ecommerce"
],
"description" : "Find customers spending an unusually high amount in an hour",
"create_time" : 1577221534700,
"analysis_config" : {
"bucket_span": "10m",
"bucket_span" : "1h",
"detectors" : [
{
"detector_description": "Sum of total",
"function": "sum",
"field_name": "total",
"detector_description" : "High total sales",
"function" : "high_sum",
"field_name" : "taxful_total_price",
"over_field_name" : "customer_full_name.keyword",
"detector_index" : 0
}
],
"influencers": [ ]
"influencers" : [
"customer_full_name.keyword",
"category.keyword"
]
},
"analysis_limits" : {
"model_memory_limit": "1024mb",
"model_memory_limit" : "10mb",
"categorization_examples_limit" : 4
},
"data_description" : {
"time_field": "timestamp",
"time_field" : "order_date",
"time_format" : "epoch_ms"
},
"model_plot_config" : {
"enabled" : true
},
"model_snapshot_retention_days" : 1,
"custom_settings" : {
"created_by" : "ml-module-sample",
...
},
"model_snapshot_id" : "1575402237",
"results_index_name" : "shared",
"allow_lazy_open" : false
}
]
}
----
// TESTRESPONSE[s/"7.0.0-alpha1"/$body.$_path/]
// TESTRESPONSE[s/1517011406091/$body.$_path/]

9
docs/reference/ml/anomaly-detection/apis/get-overall-buckets.asciidoc
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@ -55,16 +55,15 @@ a span equal to the jobs' largest bucket span.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}. It can be a job
identifier, a group name, a comma-separated list of jobs or groups, or a
wildcard expression.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection-wildcard-list]
[[ml-get-overall-buckets-request-body]]
==== {api-request-body-title}
`allow_no_jobs`::
(Optional, boolean) If `false` and the `job_id` does not match any
{anomaly-jobs}, an error occurs. The default value is `true`.
(Optional, boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=allow-no-jobs]
`bucket_span`::
(Optional, string) The span of the overall buckets. Must be greater or equal

3
docs/reference/ml/anomaly-detection/apis/get-record.asciidoc
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@ -26,7 +26,8 @@ privileges. See <<security-privileges>> and <<built-in-roles>>.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-get-record-request-body]]
==== {api-request-body-title}

3
docs/reference/ml/anomaly-detection/apis/get-snapshot.asciidoc
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@ -26,7 +26,8 @@ Retrieves information about model snapshots.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
`<snapshot_id>`::
(Optional, string) Identifier for the model snapshot. If you do not specify

561
docs/reference/ml/anomaly-detection/apis/jobresource.asciidoc
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@ -1,561 +0,0 @@
[role="xpack"]
[testenv="platinum"]
[[ml-job-resource]]
=== Job resources
A job resource has the following properties:
`analysis_config`::
(object) The analysis configuration, which specifies how to analyze the data.
See <<ml-analysisconfig, analysis configuration objects>>.
`analysis_limits`::
(object) Defines approximate limits on the memory resource requirements for the job.
See <<ml-apilimits,analysis limits>>.
`background_persist_interval`::
(time units) Advanced configuration option.
The time between each periodic persistence of the model.
The default value is a randomized value between 3 to 4 hours, which avoids
all jobs persisting at exactly the same time. The smallest allowed value is
1 hour.
+
--
TIP: For very large models (several GB), persistence could take 10-20 minutes,
so do not set the `background_persist_interval` value too low.
--
`create_time`::
(string) The time the job was created. For example, `1491007356077`. This
property is informational; you cannot change its value.
`custom_settings`::
(object) Advanced configuration option. Contains custom meta data about the
job. For example, it can contain custom URL information as shown in
{ml-docs}/ml-configuring-url.html[Adding custom URLs to {ml} results].
`data_description`::
(object) Describes the data format and how APIs parse timestamp fields.
See <<ml-datadescription,data description objects>>.
`description`::
(string) An optional description of the job.
`finished_time`::
(string) If the job closed or failed, this is the time the job finished,
otherwise it is `null`. This property is informational; you cannot change its
value.
`groups`::
(array of strings) A list of job groups. A job can belong to no groups or
many. For example, `["group1", "group2"]`.
`job_id`::
(string) The unique identifier for the job. This identifier can contain
lowercase alphanumeric characters (a-z and 0-9), hyphens, and underscores. It
must start and end with alphanumeric characters. This property is
informational; you cannot change the identifier for existing jobs.
`job_type`::
(string) Reserved for future use, currently set to `anomaly_detector`.
`job_version`::
(string) The version of {es} that existed on the node when the job was created.
`model_plot_config`::
(object) Configuration properties for storing additional model information.
See <<ml-apimodelplotconfig, model plot configuration>>.
`model_snapshot_id`::
(string) A numerical character string that uniquely identifies the model
snapshot. For example, `1491007364`. This property is informational; you
cannot change its value. For more information about model snapshots, see
<<ml-snapshot-resource>>.
`model_snapshot_retention_days`::
(long) The time in days that model snapshots are retained for the job.
Older snapshots are deleted. The default value is `1`, which means snapshots
are retained for one day (twenty-four hours).
`renormalization_window_days`::
(long) Advanced configuration option.
The period over which adjustments to the score are applied, as new data is seen.
The default value is the longer of 30 days or 100 `bucket_spans`.
`results_index_name`::
(string) The name of the index in which to store the {ml} results.
The default value is `shared`,
which corresponds to the index name `.ml-anomalies-shared`
`results_retention_days`::
(long) Advanced configuration option.
The number of days for which job results are retained.
Once per day at 00:30 (server time), results older than this period are
deleted from Elasticsearch. The default value is null, which means results
are retained.
`allow_lazy_open`::
(boolean) Advanced configuration option.
Whether this job should be allowed to open when there is insufficient
{ml} node capacity for it to be immediately assigned to a node.
The default is `false`, which means that the <<ml-open-job>>
will return an error if a {ml} node with capacity to run the
job cannot immediately be found. (However, this is also subject to
the cluster-wide `xpack.ml.max_lazy_ml_nodes` setting - see
<<advanced-ml-settings>>.) If this option is set to `true` then
the <<ml-open-job>> will not return an error, and the job will
wait in the `opening` state until sufficient {ml} node capacity
is available.
[[ml-analysisconfig]]
==== Analysis Configuration Objects
An analysis configuration object has the following properties:
`bucket_span`::
(time units) The size of the interval that the analysis is aggregated into,
typically between `5m` and `1h`. The default value is `5m`. For more
information about time units, see <<time-units,Common options>>.
`categorization_field_name`::
(string) If this property is specified, the values of the specified field will
be categorized. The resulting categories must be used in a detector by setting
`by_field_name`, `over_field_name`, or `partition_field_name` to the keyword
`mlcategory`. For more information, see
{ml-docs}/ml-configuring-categories.html[Categorizing log messages].
`categorization_filters`::
(array of strings) If `categorization_field_name` is specified,
you can also define optional filters. This property expects an array of
regular expressions. The expressions are used to filter out matching sequences
from the categorization field values. You can use this functionality to fine
tune the categorization by excluding sequences from consideration when
categories are defined. For example, you can exclude SQL statements that
appear in your log files. For more information, see
{ml-docs}/ml-configuring-categories.html[Categorizing log messages].
This property cannot be used at the same time as `categorization_analyzer`.
If you only want to define simple regular expression filters that are applied
prior to tokenization, setting this property is the easiest method.
If you also want to customize the tokenizer or post-tokenization filtering,
use the `categorization_analyzer` property instead and include the filters as
`pattern_replace` character filters. The effect is exactly the same.
`categorization_analyzer`::
(object or string) If `categorization_field_name` is specified, you can also
define the analyzer that is used to interpret the categorization field. This
property cannot be used at the same time as `categorization_filters`. See
<<ml-categorizationanalyzer,categorization analyzer>>.
`detectors`::
(array) An array of detector configuration objects,
which describe the anomaly detectors that are used in the job.
See <<ml-detectorconfig,detector configuration objects>>. +
+
--
NOTE: If the `detectors` array does not contain at least one detector,
no analysis can occur and an error is returned.
--
`influencers`::
(array of strings) A comma separated list of influencer field names.
Typically these can be the by, over, or partition fields that are used in the
detector configuration. You might also want to use a field name that is not
specifically named in a detector, but is available as part of the input data.
When you use multiple detectors, the use of influencers is recommended as it
aggregates results for each influencer entity.
`latency`::
(time units) The size of the window in which to expect data that is out of
time order. The default value is 0 (no latency). If you specify a non-zero
value, it must be greater than or equal to one second. For more information
about time units, see <<time-units,Common options>>.
+
--
NOTE: Latency is only applicable when you send data by using
the <<ml-post-data,post data>> API.
--
`multivariate_by_fields`::
(boolean) This functionality is reserved for internal use. It is not supported
for use in customer environments and is not subject to the support SLA of
official GA features.
+
--
If set to `true`, the analysis will automatically find correlations
between metrics for a given `by` field value and report anomalies when those
correlations cease to hold. For example, suppose CPU and memory usage on host A
is usually highly correlated with the same metrics on host B. Perhaps this
correlation occurs because they are running a load-balanced application.
If you enable this property, then anomalies will be reported when, for example,
CPU usage on host A is high and the value of CPU usage on host B is low.
That is to say, you'll see an anomaly when the CPU of host A is unusual given
the CPU of host B.
NOTE: To use the `multivariate_by_fields` property, you must also specify
`by_field_name` in your detector.
--
`summary_count_field_name`::
(string) If this property is specified, the data that is fed to the job is
expected to be pre-summarized. This property value is the name of the field
that contains the count of raw data points that have been summarized. The same
`summary_count_field_name` applies to all detectors in the job.
+
--
NOTE: The `summary_count_field_name` property cannot be used with the `metric`
function.
--
After you create a job, you cannot change the analysis configuration object; all
the properties are informational.
[float]
[[ml-detectorconfig]]
==== Detector Configuration Objects
Detector configuration objects specify which data fields a job analyzes.
They also specify which analytical functions are used.
You can specify multiple detectors for a job.
Each detector has the following properties:
`by_field_name`::
(string) The field used to split the data.
In particular, this property is used for analyzing the splits with respect to their own history.
It is used for finding unusual values in the context of the split.
`detector_description`::
(string) A description of the detector. For example, `Low event rate`.
`detector_index`::
(integer) A unique identifier for the detector. This identifier is based on
the order of the detectors in the `analysis_config`, starting at zero. You can
use this identifier when you want to update a specific detector.
`exclude_frequent`::
(string) Contains one of the following values: `all`, `none`, `by`, or `over`.
If set, frequent entities are excluded from influencing the anomaly results.
Entities can be considered frequent over time or frequent in a population.
If you are working with both over and by fields, then you can set `exclude_frequent`
to `all` for both fields, or to `by` or `over` for those specific fields.
`field_name`::
(string) The field that the detector uses in the function. If you use an event rate
function such as `count` or `rare`, do not specify this field. +
+
--
NOTE: The `field_name` cannot contain double quotes or backslashes.
--
`function`::
(string) The analysis function that is used.
For example, `count`, `rare`, `mean`, `min`, `max`, and `sum`. For more
information, see {ml-docs}/ml-functions.html[Function reference].
`over_field_name`::
(string) The field used to split the data.
In particular, this property is used for analyzing the splits with respect to
the history of all splits. It is used for finding unusual values in the
population of all splits. For more information, see
{ml-docs}/ml-configuring-pop.html[Performing population analysis].
`partition_field_name`::
(string) The field used to segment the analysis.
When you use this property, you have completely independent baselines for each value of this field.
`use_null`::
(boolean) Defines whether a new series is used as the null series
when there is no value for the by or partition fields. The default value is `false`.
`custom_rules`::
(array) An array of custom rule objects, which enable customizing how the detector works.
For example, a rule may dictate to the detector conditions under which results should be skipped.
For more information see <<ml-detector-custom-rule,detector custom rule objects>>. +
+
--
IMPORTANT: Field names are case sensitive, for example a field named 'Bytes'
is different from one named 'bytes'.
--
After you create a job, the only properties you can change in the detector
configuration object are the `detector_description` and the `custom_rules`;
all other properties are informational.
[float]
[[ml-datadescription]]
==== Data Description Objects
The data description defines the format of the input data when you send data to
the job by using the <<ml-post-data,post data>> API. Note that when configure
a {dfeed}, these properties are automatically set.
When data is received via the <<ml-post-data,post data>> API, it is not stored
in {es}. Only the results for anomaly detection are retained.
A data description object has the following properties:
`format`::
(string) Only `JSON` format is supported at this time.
`time_field`::
(string) The name of the field that contains the timestamp.
The default value is `time`.
`time_format`::
(string) The time format, which can be `epoch`, `epoch_ms`, or a custom pattern.
The default value is `epoch`, which refers to UNIX or Epoch time (the number of seconds
since 1 Jan 1970).
The value `epoch_ms` indicates that time is measured in milliseconds since the epoch.
The `epoch` and `epoch_ms` time formats accept either integer or real values. +
+
--
NOTE: Custom patterns must conform to the Java `DateTimeFormatter` class.
When you use date-time formatting patterns, it is recommended that you provide
the full date, time and time zone. For example: `yyyy-MM-dd'T'HH:mm:ssX`.
If the pattern that you specify is not sufficient to produce a complete timestamp,
job creation fails.
--
[float]
[[ml-categorizationanalyzer]]
==== Categorization Analyzer
The categorization analyzer specifies how the `categorization_field` is
interpreted by the categorization process. The syntax is very similar to that
used to define the `analyzer` in the <<indices-analyze,Analyze endpoint>>.
The `categorization_analyzer` field can be specified either as a string or as
an object.
If it is a string it must refer to a <<analysis-analyzers,built-in analyzer>> or
one added by another plugin.
If it is an object it has the following properties:
`char_filter`::
(array of strings or objects) One or more
<<analysis-charfilters,character filters>>. In addition to the built-in
character filters, other plugins can provide more character filters. This
property is optional. If it is not specified, no character filters are applied
prior to categorization. If you are customizing some other aspect of the
analyzer and you need to achieve the equivalent of `categorization_filters`
(which are not permitted when some other aspect of the analyzer is customized),
add them here as
<<analysis-pattern-replace-charfilter,pattern replace character filters>>.
`tokenizer`::
(string or object) The name or definition of the
<<analysis-tokenizers,tokenizer>> to use after character filters are applied.
This property is compulsory if `categorization_analyzer` is specified as an
object. Machine learning provides a tokenizer called `ml_classic` that
tokenizes in the same way as the non-customizable tokenizer in older versions
of the product. If you want to use that tokenizer but change the character or
token filters, specify `"tokenizer": "ml_classic"` in your
`categorization_analyzer`.
`filter`::
(array of strings or objects) One or more
<<analysis-tokenfilters,token filters>>. In addition to the built-in token
filters, other plugins can provide more token filters. This property is
optional. If it is not specified, no token filters are applied prior to
categorization.
If you omit the `categorization_analyzer`, the following default values are used:
[source,console]
--------------------------------------------------
POST _ml/anomaly_detectors/_validate
{
"analysis_config" : {
"categorization_analyzer" : {
"tokenizer" : "ml_classic",
"filter" : [
{ "type" : "stop", "stopwords": [
"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday",
"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun",
"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December",
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
"GMT", "UTC"
] }
]
},
"categorization_field_name": "message",
"detectors" :[{
"function":"count",
"by_field_name": "mlcategory"
}]
},
"data_description" : {
}
}
--------------------------------------------------
If you specify any part of the `categorization_analyzer`, however, any omitted
sub-properties are _not_ set to default values.
If you are categorizing non-English messages in a language where words are
separated by spaces, you might get better results if you change the day or month
words in the stop token filter to the appropriate words in your language. If you
are categorizing messages in a language where words are not separated by spaces,
you must use a different tokenizer as well in order to get sensible
categorization results.
It is important to be aware that analyzing for categorization of machine
generated log messages is a little different from tokenizing for search.
Features that work well for search, such as stemming, synonym substitution, and
lowercasing are likely to make the results of categorization worse. However, in
order for drill down from {ml} results to work correctly, the tokens that the
categorization analyzer produces must be similar to those produced by the search
analyzer. If they are sufficiently similar, when you search for the tokens that
the categorization analyzer produces then you find the original document that
the categorization field value came from.
For more information, see
{ml-docs}/ml-configuring-categories.html[Categorizing log messages].
[float]
[[ml-detector-custom-rule]]
==== Detector Custom Rule
{ml-docs}/ml-rules.html[Custom rules] enable you to customize the way detectors
operate.
A custom rule has the following properties:
`actions`::
(array) The set of actions to be triggered when the rule applies.
If more than one action is specified the effects of all actions are combined.
The available actions include: +
`skip_result`::: The result will not be created. This is the default value.
Unless you also specify `skip_model_update`, the model will be updated as
usual with the corresponding series value.
`skip_model_update`::: The value for that series will not be used to update
the model. Unless you also specify `skip_result`, the results will be created
as usual. This action is suitable when certain values are expected to be
consistently anomalous and they affect the model in a way that negatively
impacts the rest of the results.
`scope`::
(object) An optional scope of series where the rule applies. By default, the
scope includes all series. Scoping is allowed for any of the fields that are
also specified in `by_field_name`, `over_field_name`, or `partition_field_name`.
To add a scope for a field, add the field name as a key in the scope object and
set its value to an object with the following properties:
`filter_id`:::
(string) The id of the filter to be used.
`filter_type`:::
(string) Either `include` (the rule applies for values in the filter)
or `exclude` (the rule applies for values not in the filter). Defaults
to `include`.
`conditions`::
(array) An optional array of numeric conditions when the rule applies.
Multiple conditions are combined together with a logical `AND`.
+
--
NOTE: If your detector uses `lat_long`, `metric`, `rare`, or `freq_rare`
functions, you can only specify `conditions` that apply to `time`.
A condition has the following properties:
`applies_to`:::
(string) Specifies the result property to which the condition applies.
The available options are `actual`, `typical`, `diff_from_typical`, `time`.
`operator`:::
(string) Specifies the condition operator. The available options are
`gt` (greater than), `gte` (greater than or equals), `lt` (less than) and `lte` (less than or equals).
`value`:::
(double) The value that is compared against the `applies_to` field using the `operator`.
--
A rule is required to either have a non-empty scope or at least one condition.
For more examples see
{ml-docs}/ml-configuring-detector-custom-rules.html[Configuring detector custom rules].
[float]
[[ml-apilimits]]
==== Analysis Limits
Limits can be applied for the resources required to hold the mathematical models in memory.
These limits are approximate and can be set per job. They do not control the
memory used by other processes, for example the Elasticsearch Java processes.
If necessary, you can increase the limits after the job is created.
The `analysis_limits` object has the following properties:
`categorization_examples_limit`::
(long) The maximum number of examples stored per category in memory and
in the results data store. The default value is 4. If you increase this value,
more examples are available, however it requires that you have more storage available.
If you set this value to `0`, no examples are stored. +
+
--
NOTE: The `categorization_examples_limit` only applies to analysis that uses categorization.
For more information, see
{ml-docs}/ml-configuring-categories.html[Categorizing log messages].
--
`model_memory_limit`::
(long or string) The approximate maximum amount of memory resources that are
required for analytical processing. Once this limit is approached, data pruning
becomes more aggressive. Upon exceeding this limit, new entities are not
modeled. The default value for jobs created in version 6.1 and later is `1024mb`.
This value will need to be increased for jobs that are expected to analyze high
cardinality fields, but the default is set to a relatively small size to ensure
that high resource usage is a conscious decision. The default value for jobs
created in versions earlier than 6.1 is `4096mb`.
+
--
If you specify a number instead of a string, the units are assumed to be MiB.
Specifying a string is recommended for clarity. If you specify a byte size unit
of `b` or `kb` and the number does not equate to a discrete number of megabytes,
it is rounded down to the closest MiB. The minimum valid value is 1 MiB. If you
specify a value less than 1 MiB, an error occurs. For more information about
supported byte size units, see <<byte-units,Common options>>.
If your `elasticsearch.yml` file contains an `xpack.ml.max_model_memory_limit`
setting, an error occurs when you try to create jobs that have
`model_memory_limit` values greater than that setting. For more information,
see <<ml-settings>>.
--
[float]
[[ml-apimodelplotconfig]]
==== Model Plot Config
This advanced configuration option stores model information along with the
results. It provides a more detailed view into anomaly detection.
WARNING: If you enable model plot it can add considerable overhead to the performance
of the system; it is not feasible for jobs with many entities.
Model plot provides a simplified and indicative view of the model and its bounds.
It does not display complex features such as multivariate correlations or multimodal data.
As such, anomalies may occasionally be reported which cannot be seen in the model plot.
Model plot config can be configured when the job is created or updated later. It must be
disabled if performance issues are experienced.
The `model_plot_config` object has the following properties:
`enabled`::
(boolean) If true, enables calculation and storage of the model bounds for
each entity that is being analyzed. By default, this is not enabled.
`terms`::
experimental[] (string) Limits data collection to this comma separated list of
partition or by field values. If terms are not specified or it is an empty
string, no filtering is applied. For example, "CPU,NetworkIn,DiskWrites".
Wildcards are not supported. Only the specified `terms` can be viewed when
using the Single Metric Viewer.

3
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View File

@ -37,7 +37,8 @@ data is received.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-open-job-request-body]]
==== {api-request-body-title}

3
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View File

@ -53,7 +53,8 @@ or a comma-separated list.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the job.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-post-data-query-parms]]
==== {api-query-parms-title}

4
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View File

@ -27,8 +27,8 @@ Adds an {anomaly-job} to a calendar.
(Required, string) Identifier for the calendar.
`<job_id>`::
(Required, string) An identifier for the {anomaly-jobs}. It can be a job
identifier, a group name, or a comma-separated list of jobs or groups.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection-list]
[[ml-put-calendar-job-example]]
==== {api-examples-title}

7
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View File

@ -97,10 +97,9 @@ not be set to `false` on any ML node.
`script_fields`::
(Optional, object) Specifies scripts that evaluate custom expressions and
returns script fields to the {dfeed}. The
<<ml-detectorconfig,detector configuration objects>> in a job can contain
functions that use these script fields. For more information, see
<<request-body-search-script-fields,Script fields>>.
returns script fields to the {dfeed}. The detector configuration objects in a
job can contain functions that use these script fields. For more information,
see <<request-body-search-script-fields,Script fields>>.
`scroll_size`::
(Optional, unsigned integer) The `size` parameter that is used in {es}

2
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View File

@ -25,7 +25,7 @@ Instantiates a filter.
A {ml-docs}/ml-rules.html[filter] contains a list of strings.
It can be used by one or more jobs. Specifically, filters are referenced in
the `custom_rules` property of <<ml-detectorconfig,detector configuration objects>>.
the `custom_rules` property of detector configuration objects.
[[ml-put-filter-path-parms]]
==== {api-path-parms-title}

209
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View File

@ -32,64 +32,201 @@ a job directly to the `.ml-config` index using the {es} index API. If {es}
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the job. This identifier can contain
lowercase alphanumeric characters (a-z and 0-9), hyphens, and underscores. It
must start and end with alphanumeric characters.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection-define]
[[ml-put-job-request-body]]
==== {api-request-body-title}
`analysis_config`::
(Required, object) The analysis configuration, which specifies how to analyze
the data. See <<ml-analysisconfig, analysis configuration objects>>.
`allow_lazy_open`::
(Optional, boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=allow-lazy-open]
`analysis_limits`::
(Optional, object) Specifies runtime limits for the job. See
<<ml-apilimits,analysis limits>>.
[[put-analysisconfig]]`analysis_config`::
(Required, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=analysis-config]
`analysis_config`.`bucket_span`:::
(<<time-units,time units>>)
include::{docdir}/ml/ml-shared.asciidoc[tag=bucket-span]
`analysis_config`.`categorization_field_name`:::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=categorization-field-name]
`analysis_config`.`categorization_filters`:::
(array of strings)
include::{docdir}/ml/ml-shared.asciidoc[tag=categorization-filters]
`analysis_config`.`categorization_analyzer`:::
(object or string)
include::{docdir}/ml/ml-shared.asciidoc[tag=categorization-analyzer]
`analysis_config`.`detectors`:::
(array) An array of detector configuration objects. Detector configuration
objects specify which data fields a job analyzes. They also specify which
analytical functions are used. You can specify multiple detectors for a job.
+
--
NOTE: If the `detectors` array does not contain at least one detector,
no analysis can occur and an error is returned.
A detector has the following properties:
--
`analysis_config`.`detectors`.`by_field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=by-field-name]
`analysis_config`.`detectors`.`custom_rules`::::
+
--
(array)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules]
`analysis_config`.`detectors`.`custom_rules`.`actions`:::
(array)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-actions]
`analysis_config`.`detectors`.`custom_rules`.`scope`:::
(object)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-scope]
`analysis_config`.`detectors`.`custom_rules`.`scope`.`filter_id`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-scope-filter-id]
`analysis_config`.`detectors`.`custom_rules`.`scope`.`filter_type`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-scope-filter-type]
`analysis_config`.`detectors`.`custom_rules`.`conditions`:::
(array)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions]
`analysis_config`.`detectors`.`custom_rules`.`conditions`.`applies_to`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions-applies-to]
`analysis_config`.`detectors`.`custom_rules`.`conditions`.`operator`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions-operator ]
`analysis_config`.`detectors`.`custom_rules`.`conditions`.`value`::::
(double)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions-value]
--
`analysis_config`.`detectors`.`detector_description`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-description]
`analysis_config`.`detectors`.`detector_index`::::
(integer)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-index]
`analysis_config`.`detectors`.`exclude_frequent`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=exclude-frequent]
`analysis_config`.`detectors`.`field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-field-name]
`analysis_config`.`detectors`.`function`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=function]
`analysis_config`.`detectors`.`over_field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=over-field-name]
`analysis_config`.`detectors`.`partition_field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=partition-field-name]
`analysis_config`.`detectors`.`use_null`::::
(boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=use-null]
`analysis_config`.`influencers`:::
(array of strings)
include::{docdir}/ml/ml-shared.asciidoc[tag=influencers]
`analysis_config`.`latency`:::
(<<time-units,time units>>)
include::{docdir}/ml/ml-shared.asciidoc[tag=latency]
`analysis_config`.`multivariate_by_fields`:::
(boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=multivariate-by-fields]
`analysis_config`.`summary_count_field_name`:::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=summary-count-field-name]
[[put-analysislimits]]`analysis_limits`::
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=analysis-limits]
+
--
The `analysis_limits` object has the following properties:
--
`analysis_limits`.`categorization_examples_limit`:::
(long)
include::{docdir}/ml/ml-shared.asciidoc[tag=categorization-examples-limit]
`analysis_limits`.`model_memory_limit`:::
(long or string)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-memory-limit]
`background_persist_interval`::
(Optional, <<time-units, time units>>) Advanced configuration option. The time
between each periodic persistence of the model. See <<ml-job-resource>>.
(Optional, <<time-units, time units>>)
include::{docdir}/ml/ml-shared.asciidoc[tag=background-persist-interval]
`custom_settings`::
(Optional, object) Advanced configuration option. Contains custom meta data
about the job. See <<ml-job-resource>>.
[[put-customsettings]]`custom_settings`::
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-settings]
`data_description`::
(Required, object) Describes the format of the input data. This object is
required, but it can be empty (`{}`). See
<<ml-datadescription,data description objects>>.
[[put-datadescription]]`data_description`::
(Required, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=data-description]
`description`::
(Optional, string) A description of the job.
`groups`::
(Optional, array of strings) A list of job groups. See <<ml-job-resource>>.
(Optional, array of strings)
include::{docdir}/ml/ml-shared.asciidoc[tag=groups]
`model_plot_config`::
(Optional, object) Advanced configuration option. Specifies to store model
information along with the results. This adds overhead to the performance of
the system and is not feasible for jobs with many entities, see
<<ml-apimodelplotconfig>>.
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-plot-config]
`model_plot_config`.`enabled`:::
(boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-plot-config-enabled]
`model_plot_config`.`terms`:::
experimental[] (string)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-plot-config-terms]
`model_snapshot_retention_days`::
(Optional, long) The time in days that model snapshots are retained for the
job. Older snapshots are deleted. The default value is `1`, which means
snapshots are retained for one day (twenty-four hours).
(Optional, long)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-snapshot-retention-days]
`renormalization_window_days`::
(Optional, long) Advanced configuration option. The period over which
adjustments to the score are applied, as new data is seen. See
<<ml-job-resource>>.
(Optional, long)
include::{docdir}/ml/ml-shared.asciidoc[tag=renormalization-window-days]
`results_index_name`::
(Optional, string) A text string that affects the name of the {ml} results
index. The default value is `shared`, which generates an index named
`.ml-anomalies-shared`.
(Optional, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=results-index-name]
`results_retention_days`::
(Optional, long) Advanced configuration option. The number of days for which
job results are retained. See <<ml-job-resource>>.
(Optional, long)
include::{docdir}/ml/ml-shared.asciidoc[tag=results-retention-days]
[[ml-put-job-example]]
==== {api-examples-title}
@ -125,7 +262,7 @@ When the job is created, you receive the following results:
{
"job_id" : "total-requests",
"job_type" : "anomaly_detector",
"job_version" : "7.4.0",
"job_version" : "7.5.0",
"description" : "Total sum of requests",
"create_time" : 1562352500629,
"analysis_config" : {
@ -153,5 +290,5 @@ When the job is created, you receive the following results:
"allow_lazy_open" : false
}
----
// TESTRESPONSE[s/"job_version" : "7.4.0"/"job_version" : $body.job_version/]
// TESTRESPONSE[s/"job_version" : "7.5.0"/"job_version" : $body.job_version/]
// TESTRESPONSE[s/1562352500629/$body.$_path/]

39
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View File

@ -36,10 +36,12 @@ Friday or a critical system failure.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the job.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
`<snapshot_id>`::
(Required, string) Identifier for the model snapshot.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=snapshot-id]
[[ml-revert-snapshot-request-body]]
==== {api-request-body-title}
@ -56,44 +58,43 @@ If you want to resend data, then delete the intervening results.
[[ml-revert-snapshot-example]]
==== {api-examples-title}
The following example reverts to the `1491856080` snapshot for the
`it_ops_new_kpi` job:
[source,console]
--------------------------------------------------
POST
_ml/anomaly_detectors/it_ops_new_kpi/model_snapshots/1491856080/_revert
_ml/anomaly_detectors/high_sum_total_sales/model_snapshots/1577221697/_revert
{
"delete_intervening_results": true
}
--------------------------------------------------
// TEST[skip:todo]
// TEST[skip:Kibana sample data]
When the operation is complete, you receive the following results:
[source,js]
----
{
"model": {
"job_id": "it_ops_new_kpi",
"min_version": "6.3.0",
"timestamp": 1491856080000,
"description": "State persisted due to job close at 2017-04-10T13:28:00-0700",
"snapshot_id": "1491856080",
"job_id": "high_sum_total_sales",
"min_version": "6.4.0",
"timestamp": 1577221697000,
"description": "Periodic background persist at 2019-12-24T21:08:17+0000",
"snapshot_id": "1577221697",
"snapshot_doc_count": 1,
"model_size_stats": {
"job_id": "it_ops_new_kpi",
"job_id": "high_sum_total_sales",
"result_type": "model_size_stats",
"model_bytes": 29518,
"model_bytes": 1325334,
"model_bytes_exceeded" : 0,
"model_bytes_memory_limit" : 10485760,
"total_by_field_count" : 3,
"total_over_field_count": 0,
"total_over_field_count" : 2361,
"total_partition_field_count" : 2,
"bucket_allocation_failures_count" : 0,
"memory_status" : "ok",
"log_time": 1491856080000,
"timestamp": 1455318000000
"log_time" : 1577221697000,
"timestamp" : 1577217600000
},
"latest_record_time_stamp": 1455318669000,
"latest_result_time_stamp": 1455318000000,
"latest_record_time_stamp" : 1577221286000,
"latest_result_time_stamp" : 1577217600000,
"retain" : false
}
}

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@ -39,7 +39,8 @@ using those same roles.
==== {api-path-parms-title}
`<feed_id>`::
(Required, string) Identifier for the {dfeed}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=datafeed-id]
[[ml-update-datafeed-request-body]]
==== {api-request-body-title}
@ -47,70 +48,58 @@ using those same roles.
The following properties can be updated after the {dfeed} is created:
`aggregations`::
(Optional, object) If set, the {dfeed} performs aggregation searches. For more
information, see <<ml-datafeed-resource>>.
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=aggregations]
`chunking_config`::
(Optional, object) Specifies how data searches are split into time chunks. See
<<ml-datafeed-chunking-config>>.
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=chunking-config]
`delayed_data_check_config`::
(Optional, object) Specifies whether the data feed checks for missing data and
the size of the window. See <<ml-datafeed-delayed-data-check-config>>.
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=delayed-data-check-config]
`frequency`::
(Optional, <<time-units, time units>>) The interval at which scheduled queries
are made while the {dfeed} runs in real time. The default value is either the
bucket span for short bucket spans, or, for longer bucket spans, a sensible
fraction of the bucket span. For example: `150s`.
(Optional, <<time-units, time units>>)
include::{docdir}/ml/ml-shared.asciidoc[tag=frequency]
`indices`::
(Optional, array) An array of index names. Wildcards are supported. For
example: `["it_ops_metrics", "server*"]`.
(Optional, array)
include::{docdir}/ml/ml-shared.asciidoc[tag=indices]
`query`::
(Optional, object) The {es} query domain-specific language (DSL). This value
corresponds to the query object in an {es} search POST body. All the options
that are supported by {es} can be used, as this object is passed verbatim to
{es}. By default, this property has the following value:
`{"match_all": {"boost": 1}}`.
`max_empty_searches`::
(Optional, integer)
include::{docdir}/ml/ml-shared.asciidoc[tag=max-empty-searches]
+
--
WARNING: If you change the query, then the analyzed data will also be changed,
therefore the required time to learn might be long and the understandability of
the results is unpredictable.
If you want to make significant changes to the source data, we would recommend
you clone it and create a second job containing the amendments. Let both run in
parallel and close one when you are satisfied with the results of the other job.
The special value `-1` unsets this setting.
--
`query`::
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=query]
+
--
WARNING: If you change the query, the analyzed data is also changed. Therefore,
the required time to learn might be long and the understandability of the
results is unpredictable. If you want to make significant changes to the source
data, we would recommend you clone it and create a second job containing the
amendments. Let both run in parallel and close one when you are satisfied with
the results of the other job.
--
`query_delay`::
(Optional, <<time-units, time units>>) The number of seconds behind real-time
that data is queried. For example, if data from 10:04 a.m. might not be
searchable in {es} until 10:06 a.m., set this property to 120 seconds. The
default value is `60s`.
(Optional, <<time-units, time units>>)
include::{docdir}/ml/ml-shared.asciidoc[tag=query-delay]
`script_fields`::
(Optional, object) Specifies scripts that evaluate custom expressions and
returns script fields to the {dfeed}. The
<<ml-detectorconfig,detector configuration objects>> in a job can contain
functions that use these script fields. For more information, see
<<request-body-search-script-fields,Script fields>>.
(Optional, object)
include::{docdir}/ml/ml-shared.asciidoc[tag=script-fields]
`scroll_size`::
(Optional, unsigned integer) The `size` parameter that is used in {es}
searches. The default value is `1000`.
`max_empty_searches`::
(Optional, integer) If a real-time {dfeed} has never seen any data (including
during any initial training period) then it will automatically stop itself
and close its associated job after this many real-time searches that return
no documents. In other words, it will stop after `frequency` times
`max_empty_searches` of real-time operation. If not set
then a {dfeed} with no end time that sees no data will remain started until
it is explicitly stopped. The special value `-1` unsets this setting.
For more information about these properties, see <<ml-datafeed-resource>>.
(Optional, unsigned integer)
include::{docdir}/ml/ml-shared.asciidoc[tag=scroll-size]
[[ml-update-datafeed-example]]

169
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View File

@ -25,71 +25,134 @@ Updates certain properties of an {anomaly-job}.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
[[ml-update-job-request-body]]
==== {api-request-body-title}
The following properties can be updated after the job is created:
[cols="<,<,<",options="header",]
|=======================================================================
|Name |Description |Requires Restart
`allow_lazy_open`::
(boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=allow-lazy-open]
+
--
NOTE: If the job is open when you make the update, you must stop the {dfeed},
close the job, then reopen the job and restart the {dfeed} for the changes to take effect.
|`analysis_limits.model_memory_limit` |The approximate maximum amount of
memory resources required for analytical processing. See <<ml-apilimits>>. You
can update the `analysis_limits` only while the job is closed. The
--
[[update-analysislimits]]`analysis_limits`.`model_memory_limit`::
(long or string)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-memory-limit]
+
--
NOTE: You can update the `analysis_limits` only while the job is closed. The
`model_memory_limit` property value cannot be decreased below the current usage.
| Yes
|`background_persist_interval` |Advanced configuration option. The time between
each periodic persistence of the model. See <<ml-job-resource>>. | Yes
TIP: If the `memory_status` property in the
<<ml-get-snapshot-results,`model_size_stats` object>> has a value of `hard_limit`,
this means that it was unable to process some data. You might want to re-run the
job with an increased `model_memory_limit`.
|`custom_settings` |Contains custom meta data about the job. | No
|`description` |A description of the job. See <<ml-job-resource>>. | No
|`detectors` |An array of detector update objects. | No
|`detector_index` |The identifier of the detector to update (integer).| No
|`detectors.description` |The new description for the detector.| No
|`detectors.custom_rules` |The new list of <<ml-detector-custom-rule, rules>>
for the detector. | No
|`groups` |A list of job groups. See <<ml-job-resource>>. | No
|`model_plot_config.enabled` |If true, enables calculation and storage of the
model bounds for each entity that is being analyzed.
See <<ml-apimodelplotconfig>>. | No
|`model_snapshot_retention_days` |The time in days that model snapshots are
retained for the job. See <<ml-job-resource>>. | No
|`renormalization_window_days` |Advanced configuration option. The period over
which adjustments to the score are applied, as new data is seen.
See <<ml-job-resource>>. | Yes
|`results_retention_days` |Advanced configuration option. The number of days
for which job results are retained. See <<ml-job-resource>>. | No
|`allow_lazy_open` |Advanced configuration option. Whether to allow the job to be
opened when no {ml} node has sufficient capacity. See <<ml-job-resource>>. | Yes
|=======================================================================
For those properties that have `Requires Restart` set to `Yes` in this table,
if the job is open when you make the update, you must stop the data feed, close
the job, then reopen the job and restart the data feed for the changes to take
effect.
[NOTE]
--
* If the `memory_status` property in the `model_size_stats` object has a value
of `hard_limit`, this means that it was unable to process some data. You might
want to re-run this job with an increased `model_memory_limit`.
`background_persist_interval`::
(<<time-units,time units>>)
include::{docdir}/ml/ml-shared.asciidoc[tag=background-persist-interval]
+
--
NOTE: If the job is open when you make the update, you must stop the {dfeed},
close the job, then reopen the job and restart the {dfeed} for the changes to take effect.
--
[[update-customsettings]]`custom_settings`::
(object)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-settings]
`description`::
(string) A description of the job.
`detectors`::
(array) An array of detector update objects.
`detectors`.`custom_rules`:::
+
--
(array)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules]
`detectors`.`custom_rules`.`actions`:::
(array)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-actions]
`detectors`.`custom_rules`.`scope`:::
(object)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-scope]
`detectors`.`custom_rules`.`scope`.`filter_id`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-scope-filter-id]
`detectors`.`custom_rules`.`scope`.`filter_type`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-scope-filter-type]
`detectors`.`custom_rules`.`conditions`:::
(array)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions]
`detectors`.`custom_rules`.`conditions`.`applies_to`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions-applies-to]
`detectors`.`custom_rules`.`conditions`.`operator`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions-operator]
`detectors`.`custom_rules`.`conditions`.`value`::::
(double)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules-conditions-value]
--
`detectors`.`description`:::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-description]
`detectors`.`detector_index`:::
(integer)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-index]
`groups`::
(array of strings)
include::{docdir}/ml/ml-shared.asciidoc[tag=groups]
`model_plot_config`::
(object)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-plot-config]
`model_plot_config`.`enabled`:::
(boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-plot-config-enabled]
`model_snapshot_retention_days`::
(long)
include::{docdir}/ml/ml-shared.asciidoc[tag=model-snapshot-retention-days]
`renormalization_window_days`::
(long)
include::{docdir}/ml/ml-shared.asciidoc[tag=renormalization-window-days]
+
--
NOTE: If the job is open when you make the update, you must stop the {dfeed},
close the job, then reopen the job and restart the {dfeed} for the changes to take effect.
--
`results_retention_days`::
(long)
include::{docdir}/ml/ml-shared.asciidoc[tag=results-retention-days]
[[ml-update-job-example]]

3
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View File

@ -25,7 +25,8 @@ Updates certain properties of a snapshot.
==== {api-path-parms-title}
`<job_id>`::
(Required, string) Identifier for the {anomaly-job}.
(Required, string)
include::{docdir}/ml/ml-shared.asciidoc[tag=job-id-anomaly-detection]
`<snapshot_id>`::
(Required, string) Identifier for the model snapshot.

2
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View File

@ -30,7 +30,7 @@ before you create an {anomaly-job}.
==== {api-request-body-title}
For a list of the properties that you can specify in the body of this API,
see <<ml-detectorconfig,detector configuration objects>>.
see detector configuration objects.
[[ml-valid-detector-example]]
==== {api-examples-title}

2
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View File

@ -30,7 +30,7 @@ create the job.
==== {api-request-body-title}
For a list of the properties that you can specify in the body of this API,
see <<ml-job-resource>>.
see <<ml-put-job>>.
[[ml-valid-job-example]]
==== {api-examples-title}

52
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View File

@ -144,7 +144,39 @@ language.
The optional `categorization_analyzer` property allows even greater customization
of how categorization interprets the categorization field value. It can refer to
a built-in {es} analyzer or a combination of zero or more character filters,
a tokenizer, and zero or more token filters.
a tokenizer, and zero or more token filters. If you omit the
`categorization_analyzer`, the following default values are used:
[source,console]
--------------------------------------------------
POST _ml/anomaly_detectors/_validate
{
"analysis_config" : {
"categorization_analyzer" : {
"tokenizer" : "ml_classic",
"filter" : [
{ "type" : "stop", "stopwords": [
"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday",
"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun",
"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December",
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
"GMT", "UTC"
] }
]
},
"categorization_field_name": "message",
"detectors" :[{
"function":"count",
"by_field_name": "mlcategory"
}]
},
"data_description" : {
}
}
--------------------------------------------------
If you specify any part of the `categorization_analyzer`, however, any omitted
sub-properties are _not_ set to default values.
The `ml_classic` tokenizer and the day and month stopword filter are more or less
equivalent to the following analyzer, which is defined using only built-in {es}
@ -208,8 +240,22 @@ difference in behavior is that this custom analyzer does not include accented
letters in tokens whereas the `ml_classic` tokenizer does, although that could
be fixed by using more complex regular expressions.
For more information about the `categorization_analyzer` property, see
{ref}/ml-job-resource.html#ml-categorizationanalyzer[Categorization analyzer].
If you are categorizing non-English messages in a language where words are
separated by spaces, you might get better results if you change the day or month
words in the stop token filter to the appropriate words in your language. If you
are categorizing messages in a language where words are not separated by spaces,
you must use a different tokenizer as well in order to get sensible
categorization results.
It is important to be aware that analyzing for categorization of machine
generated log messages is a little different from tokenizing for search.
Features that work well for search, such as stemming, synonym substitution, and
lowercasing are likely to make the results of categorization worse. However, in
order for drill down from {ml} results to work correctly, the tokens that the
categorization analyzer produces must be similar to those produced by the search
analyzer. If they are sufficiently similar, when you search for the tokens that
the categorization analyzer produces then you find the original document that
the categorization field value came from.
NOTE: To add the `categorization_analyzer` property in {kib}, you must use the
**Edit JSON** tab and copy the `categorization_analyzer` object from one of the

4
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View File

@ -7,12 +7,10 @@ flexible ways to analyze data for anomalies.
When you create {anomaly-jobs}, you specify one or more detectors, which define
the type of analysis that needs to be done. If you are creating your job by
using {ml} APIs, you specify the functions in
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
using {ml} APIs, you specify the functions in detector configuration objects.
If you are creating your job in {kib}, you specify the functions differently
depending on whether you are creating single metric, multi-metric, or advanced
jobs.
//For a demonstration of creating jobs in {kib}, see <<ml-getting-started>>.
Most functions detect anomalies in both low and high values. In statistical
terminology, they apply a two-sided test. Some functions offer low and high

12
docs/reference/ml/anomaly-detection/functions/count.asciidoc
View File

@ -39,8 +39,8 @@ These functions support the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties,
see {ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 1: Analyzing events with the count function
[source,console]
@ -164,8 +164,8 @@ These functions support the following properties:
* `by_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties,
see {ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
For example, if you have the following number of events per bucket:
@ -233,8 +233,8 @@ These functions support the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties,
see {ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 6: Analyzing users with the distinct_count function
[source,console]

4
docs/reference/ml/anomaly-detection/functions/geo.asciidoc
View File

@ -25,8 +25,8 @@ This function supports the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties,
see {ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 1: Analyzing transactions with the lat_long function
[source,console]

4
docs/reference/ml/anomaly-detection/functions/info.asciidoc
View File

@ -28,8 +28,8 @@ These functions support the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 1: Analyzing subdomain strings with the info_content function
[source,js]

24
docs/reference/ml/anomaly-detection/functions/metric.asciidoc
View File

@ -34,8 +34,8 @@ This function supports the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 1: Analyzing minimum transactions with the min function
[source,js]
@ -69,8 +69,8 @@ This function supports the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 2: Analyzing maximum response times with the max function
[source,js]
@ -131,8 +131,8 @@ These functions support the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 4: Analyzing response times with the median function
[source,js]
@ -169,8 +169,8 @@ These functions support the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 5: Analyzing response times with the mean function
[source,js]
@ -237,8 +237,8 @@ This function supports the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 8: Analyzing response times with the metric function
[source,js]
@ -274,8 +274,8 @@ These functions support the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 9: Analyzing response times with the varp function
[source,js]

8
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View File

@ -46,8 +46,8 @@ This function supports the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 1: Analyzing status codes with the rare function
[source,js]
@ -105,8 +105,8 @@ This function supports the following properties:
* `over_field_name` (required)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 3: Analyzing URI values in a population with the freq_rare function
[source,js]

8
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View File

@ -35,8 +35,8 @@ These functions support the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 1: Analyzing total expenses with the sum function
[source,js]
@ -91,8 +91,8 @@ These functions support the following properties:
* `by_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
NOTE: Population analysis (that is to say, use of the `over_field_name` property)
is not applicable for this function.

8
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View File

@ -53,8 +53,8 @@ This function supports the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 1: Analyzing events with the time_of_day function
[source,js]
@ -84,8 +84,8 @@ This function supports the following properties:
* `over_field_name` (optional)
* `partition_field_name` (optional)
For more information about those properties, see
{ref}/ml-job-resource.html#ml-detectorconfig[Detector configuration objects].
For more information about those properties, see the
{ref}/ml-put-job.html#ml-put-job-request-body[create {anomaly-jobs} API].
.Example 2: Analyzing events with the time_of_week function
[source,js]

49
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View File

@ -143,7 +143,7 @@ tag::categorization-analyzer[]
If `categorization_field_name` is specified, you can also define the analyzer
that is used to interpret the categorization field. This property cannot be used
at the same time as `categorization_filters`. The categorization analyzer
specifies how the `categorization_field` is interpreted by the categorization
specifies how the categorization field is interpreted by the categorization
process. The syntax is very similar to that used to define the `analyzer` in the
<<indices-analyze,Analyze endpoint>>. For more information, see
{ml-docs}/ml-configuring-categories.html[Categorizing log messages].
@ -170,7 +170,7 @@ end::categorization-analyzer[]
tag::categorization-examples-limit[]
The maximum number of examples stored per category in memory and in the results
data store. The default value is 4. If you increase this value, more examples
data store. The default value is `4`. If you increase this value, more examples
are available, however it requires that you have more storage available. If you
set this value to `0`, no examples are stored.
+
@ -486,51 +486,6 @@ optionally `results_field` (`ml` by default).
results of the analysis. Default to `ml`.
end::dest[]
tag::detector[]
A detector has the following properties:
`by_field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=by-field-name]
`custom_rules`::::
(array)
include::{docdir}/ml/ml-shared.asciidoc[tag=custom-rules]
`detector_description`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-description]
`detector_index`::::
(integer)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-index]
`exclude_frequent`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=exclude-frequent]
`field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=detector-field-name]
`function`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=function]
`over_field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=over-field-name]
`partition_field_name`::::
(string)
include::{docdir}/ml/ml-shared.asciidoc[tag=partition-field-name]
`use_null`::::
(boolean)
include::{docdir}/ml/ml-shared.asciidoc[tag=use-null]
end::detector[]
tag::detector-description[]
A description of the detector. For example, `Low event rate`.
end::detector-description[]

9
docs/reference/redirects.asciidoc
View File

@ -456,3 +456,12 @@ See <<rollup-put-job-api-request-body>>.
This page was deleted.
See <<put-transform>>, <<preview-transform>>, <<update-transform>>,
<<get-transform>>.
[role="exclude",id="ml-job-resource"]
=== Job resources
This page was deleted.
[[ml-analysisconfig]]
See the details in
[[ml-apimodelplotconfig]]
<<ml-put-job>>, <<ml-update-job>>, and <<ml-get-job>>.

1
docs/reference/rest-api/defs.asciidoc
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@ -16,7 +16,6 @@ These resource definitions are used in APIs related to {ml-features} and
include::{es-repo-dir}/ml/anomaly-detection/apis/datafeedresource.asciidoc[]
include::{es-repo-dir}/ml/df-analytics/apis/analysisobjects.asciidoc[]
include::{es-repo-dir}/ml/anomaly-detection/apis/jobcounts.asciidoc[]
include::{es-repo-dir}/ml/anomaly-detection/apis/jobresource.asciidoc[]
include::{es-repo-dir}/ml/anomaly-detection/apis/snapshotresource.asciidoc[]
include::{xes-repo-dir}/rest-api/security/role-mapping-resources.asciidoc[]
include::{es-repo-dir}/ml/anomaly-detection/apis/resultsresource.asciidoc[]

2
docs/reference/settings/ml-settings.asciidoc
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@ -81,7 +81,7 @@ The maximum `model_memory_limit` property value that can be set for any job on
this node. If you try to create a job with a `model_memory_limit` property value
that is greater than this setting value, an error occurs. Existing jobs are not
affected when you update this setting. For more information about the
`model_memory_limit` property, see <<ml-apilimits>>.
`model_memory_limit` property, see <<put-analysislimits>>.
`xpack.ml.max_open_jobs` (<<cluster-update-settings,Dynamic>>)::
The maximum number of jobs that can run simultaneously on a node. Defaults to