Commit Graph

183 Commits

Author SHA1 Message Date
benkrug 11746b8536
Update datasketches-hll.md (#12010)
under "Aggregators", about the lgK setting, it said "Must be a power of 2 from 4 to 21 inclusively."  21 is not a power of 2, nor is 12, the given default.  I think there may have been confusion because lgK represents log2 of K.  We could say "K must be a power of 2...", or just say lgK must be between 4 and 21.
2021-11-30 18:52:00 -08:00
Charles Smith f536f31229
clarify avro support & general style improvements (#11975)
* clarify avro support & general style improvements

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/avro.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update avro.md

remove redundancy

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>
2021-11-28 16:10:18 +08:00
Charles Smith 33a5cda061
Docs: Splits Kafka topic. Adds detailed example for kafka inputFormat (#11912)
* Splits Kafka topic according to function. Adds detailed example for kafka inputFormat

* Apply suggestions from code review

accept suggestions from review

Co-authored-by: sthetland <steve.hetland@imply.io>
Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Apply suggestions from code review

accept suggestions

Co-authored-by: sthetland <steve.hetland@imply.io>
Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* accept suggestions

* accept suggestions

* final typos and clarifications

* bringing forward some syntax fixes

Co-authored-by: sthetland <steve.hetland@imply.io>
Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>
2021-11-12 13:02:23 -08:00
Maytas Monsereenusorn a36a41da73
Support routing data through an HTTP proxy (#11891)
* Support routing data through an HTTP proxy

* Support routing data through an HTTP proxy

This adds the ability for the HttpClient to connect through an HTTP proxy.  We
augment the channel factory to check if it is supposed to be proxied and, if so,
we connect to the proxy host first, issue a CONNECT command through to the final
recipient host and *then* give the channel to the normal http client for usage.

* add docs

* address comments

Co-authored-by: imply-cheddar <86940447+imply-cheddar@users.noreply.github.com>
2021-11-09 17:24:06 -08:00
zachjsh 1d6df48145
Warn if cache size of lookup is beyond max size (#11863)
Enhanced the ExtractionNamespace interface in lookups-cached-global core extension with the ability to set a maxHeapPercentage for the cache of the respective namespace. The reason for adding this functionality, is make it easier to detect when a lookup table grows to a size that the underlying service cannot handle, because it does not have enough memory. The default value of maxHeap for the interface is -1, which indicates that no maxHeapPercentage has been set. For the JdbcExtractionNamespace and UriExtractionNamespace implementations, the default value is null, which will cause the respective service that the lookup is loaded in, to warn when its cache is beyond mxHeapPercentage of the service's configured max heap size. If a positive non-null value is set for the namespace's maxHeapPercentage config, this value will be honored for all services that the respective lookup is loaded onto, and consequently log warning messages when the cache of the respective lookup grows beyond this respective percentage of the services configured max heap size. Warnings are logged every time that either Uri based or Jdbc based lookups are regenerated, if the maxHeapPercentage constraint is violated. No other implementations will log warnings at this time. No error is thrown when the size exceeds the maxHeapPercentage at this time, as doing so could break functionality for existing users. Previously the JdbcCacheGenerator generated its cache by materializing all rows of the underling table in memory at once; this made it difficult to log warning messages in the case that the results from the jdbc query were very large and caused the service to run out of memory. To help with this, this pr makes it so that the jdbc query results are instead streamed through an iterator.
2021-11-03 21:32:22 -04:00
Karan Kumar 90640bb316
Support for hadoop 3 via maven profiles (#11794)
Add support for hadoop 3 profiles . Most of the details are captured in #11791 .
We use a combination of maven profiles and resource filtering to achieve this. Hadoop2 is supported by default and a new maven profile with the name hadoop3 is created. This will allow the user to choose the profile which is best suited for the use case.
2021-10-30 22:46:24 +05:30
Charles Smith 6089a168ea
Docs - update dynamic config provider topic (#11795)
* update dynamic config provider

* update topic

* add examples for dynamic config provider:

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/operations/dynamic-config-provider.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/operations/dynamic-config-provider.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/operations/dynamic-config-provider.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/operations/dynamic-config-provider.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>

* Update docs/operations/dynamic-config-provider.md

Co-authored-by: Clint Wylie <cjwylie@gmail.com>

* Update docs/operations/dynamic-config-provider.md

Co-authored-by: Clint Wylie <cjwylie@gmail.com>

* Update kafka-ingestion.md

Co-authored-by: Katya Macedo  <38017980+ektravel@users.noreply.github.com>
Co-authored-by: Clint Wylie <cjwylie@gmail.com>
2021-10-14 17:51:32 -07:00
Victoria Lim 42e44269be
Docs update for druid-basic-security (#11782)
* update druid-basic-security

* typo

* revisions from review
2021-10-08 14:45:09 -07:00
lokesh-lingarajan ad6609a606
Kafka Input Format for headers, key and payload parsing (#11630)
### Description

Today we ingest a number of high cardinality metrics into Druid across dimensions. These metrics are rolled up on a per minute basis, and are very useful when looking at metrics on a partition or client basis. Events is another class of data that provides useful information about a particular incident/scenario inside a Kafka cluster. Events themselves are carried inside kafka payload, but nonetheless there are some very useful metadata that is carried in kafka headers that can serve as useful dimension for aggregation and in turn bringing better insights.

PR(https://github.com/apache/druid/pull/10730) introduced support of Kafka headers in InputFormats.

We still need an input format to parse out the headers and translate those into relevant columns in Druid. Until that’s implemented, none of the information available in the Kafka message headers would be exposed. So first there is a need to write an input format that can parse headers in any given format(provided we support the format) like we parse payloads today. Apart from headers there is also some useful information present in the key portion of the kafka record. We also need a way to expose the data present in the key as druid columns. We need a generic way to express at configuration time what attributes from headers, key and payload need to be ingested into druid. We need to keep the design generic enough so that users can specify different parsers for headers, key and payload.

This PR is designed to solve the above by providing wrapper around any existing input formats and merging the data into a single unified Druid row.

Lets look at a sample input format from the above discussion

"inputFormat":
{
    "type": "kafka",     // New input format type
    "headerLabelPrefix": "kafka.header.",   // Label prefix for header columns, this will avoid collusions while merging columns
    "recordTimestampLabelPrefix": "kafka.",  // Kafka record's timestamp is made available in case payload does not carry timestamp
    "headerFormat":  // Header parser specifying that values are of type string
    {
        "type": "string"
    },
    "valueFormat": // Value parser from json parsing
    {
        "type": "json",
        "flattenSpec": {
          "useFieldDiscovery": true,
          "fields": [...]
        }
    },
    "keyFormat":  // Key parser also from json parsing
    {
        "type": "json"
    }
}

Since we have independent sections for header, key and payload, it will enable parsing each section with its own parser, eg., headers coming in as string and payload as json. 

KafkaInputFormat will be the uber class extending inputFormat interface and will be responsible for creating individual parsers for header, key and payload, blend the data resolving conflicts in columns and generating a single unified InputRow for Druid ingestion. 

"headerFormat" will allow users to plug parser type for the header values and will add default header prefix as "kafka.header."(can be overridden) for attributes to avoid collision while merging attributes with payload.

Kafka payload parser will be responsible for parsing the Value portion of the Kafka record. This is where most of the data will come from and we should be able to plugin existing parser. One thing to note here is that if batching is performed, then the code is augmenting header and key values to every record in the batch.

Kafka key parser will handle parsing Key portion of the Kafka record and will ingest the Key with dimension name as "kafka.key".

## KafkaInputFormat Class: 
This is the class that orchestrates sending the consumerRecord to each parser, retrieve rows, merge the columns into one final row for Druid consumption. KafkaInputformat should make sure to release the resources that gets allocated as a part of reader in CloseableIterator<InputRow> during normal and exception cases.

During conflicts in dimension/metrics names, the code will prefer dimension names from payload and ignore the dimension either from headers/key. This is done so that existing input formats can be easily migrated to this new format without worrying about losing information.
2021-10-07 08:56:27 -07:00
Charles Smith 8fd17fe0af
fix a few typos in Kinesis doc (#11776) 2021-10-06 19:43:20 -07:00
Frank Chen 104c9a07f0
Fix broken anchor and heading levels in Kafka/Kinesis ingestion (#11748)
* Fix broken anchor and heading levels

* Fix CI
2021-10-05 19:30:50 -07:00
Vaibhav 3c4bba1478
Update kinesis-ingestion.md (#11767)
* Update kinesis-ingestion.md

It seems that we are declaring (a final int) recordsPerFetch as 400 and fetchDelayMillis as 0 in https://github.com/implydata/druid/blob/imply-2021.09/extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/KinesisIndexTaskIOConfig.java#L36

```
public static final int DEFAULT_RECORDS_PER_FETCH = 4000;
public static final int DEFAULT_FETCH_DELAY_MILLIS = 0;
```

updating `recordsPerFetch` and `fetchDelayMillis` to actual default values as hardcoded above .

* Update docs/development/extensions-core/kinesis-ingestion.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>
2021-10-04 11:26:53 -07:00
Jihoon Son 7e90d00cc0
Configurable maxStreamLength for doubles sketches (#11574)
* Configurable maxStreamLength for doubles sketches

* fix equals/hashcode and it test failure

* fix test

* fix it test

* benchmark

* doc

* grouping key

* fix comment

* dependency check

* Update docs/development/extensions-core/datasketches-quantiles.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

* Update docs/querying/sql.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

Co-authored-by: Charles Smith <techdocsmith@gmail.com>
2021-08-31 14:56:37 -07:00
zhangyue19921010 6d14ea2d14
Dynamic auto scale Kinesis-Stream ingest tasks (#10985)
* ready to test

* revert misc.xml

* document kinesis md

* Update docs/development/extensions-core/kafka-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update docs/development/extensions-core/kinesis-ingestion.md

* Update kafka-ingestion.md

remove leading `

* Update kinesis-ingestion.md

add missing `

Co-authored-by: yuezhang <yuezhang@freewheel.tv>
Co-authored-by: Charles Smith <techdocsmith@gmail.com>
2021-08-30 15:44:29 -07:00
Charles Smith 9032a0b079
updates Kafka and Kinesis to use . Fixes some typos and other style i… (#11624)
* updates Kafka and Kinesis to use . Fixes some typos and other style issues for Kafka.

* fix spelling

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kinesis-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kinesis-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* address comments

Co-authored-by: Jihoon Son <jihoonson@apache.org>
2021-08-26 13:22:30 -07:00
Jeet Patel adb2f5c884
Add prometheus-emitter docs (#11618)
* Add prometheus-emitter docs

* Update docs/development/extensions.md

Co-authored-by: Charles Smith <techdocsmith@gmail.com>

Co-authored-by: Charles Smith <techdocsmith@gmail.com>
2021-08-24 08:48:03 -07:00
Clint Wylie ec334a641b
MySQL extension with MariaDB connector docs (#11608)
* add docs for mariadb support via mysql extensions

* add logging so you know what druid knows

* homogenize

* spelling

* missed a couple
2021-08-19 01:52:26 -07:00
Maytas Monsereenusorn ce4dd48bb8
Support custom coordinator duties (#11601)
* impl

* fix checkstyle

* fix checkstyle

* fix checkstyle

* add test

* add test

* add test

* add integration tests

* add integration tests

* add more docs

* address comments

* address comments

* address comments

* add test

* fix checkstyle

* fix test
2021-08-19 11:54:11 +07:00
Karan Kumar d1bad92880
Made the instructions of adding extra resources as part of extensions simpler (#11577) 2021-08-17 17:33:55 +05:30
sthetland 95c5bc3a6d
Clarify when changes to credentialIterations take effect (#11590)
This change updates doc to clarify when and how a change to druid.auth.authenticator.basic.credentialIterations takes effect: changes apply only to new users or existing users upon changing their password via the credentials API, which may not be the expectation.
2021-08-13 17:02:07 -07:00
Charles Smith 6524d838d7
Docs refactor of ingestion. Carries #11541 (#11576)
* Docs refactor of ingestion. Carries #11541

* Update docs/misc/math-expr.md

* add Apache license

* fix header, add topics to sidebar

* Update docs/ingestion/partitioning.md

* pick up changes to  and  md from c7fdf1d, #11479

Co-authored-by: Suneet Saldanha <suneet@apache.org>
Co-authored-by: Jihoon Son <jihoonson@apache.org>
2021-08-13 08:42:03 -07:00
frank chen bf5d829b71
Add more guidelines on the use of aliyun-oss-extensions (#11420)
* Add more description

Signed-off-by: frank chen <frank.chen021@outlook.com>

* Update prefixes usage and Add troubleshooting section

* Add endpoint configuration recommendation

* Fix link

* resolve review comments
2021-08-09 17:27:35 -07:00
Yi Yuan 59c8430d29
change document (#11545)
Co-authored-by: yuanyi <yuanyi@freewheel.tv>
2021-08-06 07:57:12 -07:00
Peter Marshall 973e5bf7d0
Docs - HLL lgK tip and slight layout change (#11482)
* HLL lgK and a tip

Knowledge transfer from https://the-asf.slack.com/archives/CJ8D1JTB8/p1600699967024200.  Attempted to make a connection between the SQL HLL function and the HLL underneath without getting too complicated.  Also added a note about using K over 16 being pretty much pointless.

* Corrected spelling

* Create datasketches-hll.md

Put roll-up back to rollup

* Update docs/development/extensions-core/datasketches-hll.md

Co-authored-by: Abhishek Agarwal <1477457+abhishekagarwal87@users.noreply.github.com>

Co-authored-by: Abhishek Agarwal <1477457+abhishekagarwal87@users.noreply.github.com>
2021-07-26 12:28:53 -07:00
Paul Rogers aa8c615ac2
Updates to source and doc build pages (#11464)
* Updates to source and doc build pages.

Clarifies a few points for newbies.

* Fixed spelling error

And added spellcheck info to website README file.
2021-07-20 18:07:34 -07:00
Abhishek Agarwal 94c1671eaf
Split SegmentLoader into SegmentLoader and SegmentCacheManager (#11466)
This PR splits current SegmentLoader into SegmentLoader and SegmentCacheManager.

SegmentLoader - this class is responsible for building the segment object but does not expose any methods for downloading, cache space management, etc. Default implementation delegates the download operations to SegmentCacheManager and only contains the logic for building segments once downloaded. . This class will be used in SegmentManager to construct Segment objects.

SegmentCacheManager - this class manages the segment cache on the local disk. It fetches the segment files to the local disk, can clean up the cache, and in the future, support reserve and release on cache space. [See https://github.com/Make SegmentLoader extensible and customizable #11398]. This class will be used in ingestion tasks such as compaction, re-indexing where segment files need to be downloaded locally.
2021-07-21 00:14:19 +05:30
Joseph Glanville d5e8d4d680
Avro union support (#10505)
* Avro union support

* Document new union support

* Add support for AvroStreamInputFormat and fix checkstyle

* Extend multi-member union test schema and format

* Some additional docs and add Enums to spelling

* Rename explodeUnions -> extractUnions

* explode -> extract

* ByType

* Correct spelling error
2021-07-06 22:05:41 -07:00
frank chen 906a704c55
Eliminate ambiguities of KB/MB/GB in the doc (#11333)
* GB ---> GiB

* suppress spelling check

* MB --> MiB, KB --> KiB

* Use IEC binary prefix

* Add reference link

* Fix doc style
2021-06-30 13:42:45 -07:00
Hoseung Lee ed0a57e106
Update kafka-ingestion.md to clarify PasswordProvider support limitation (#11374)
Co-authored-by: Clint Wylie <cjwylie@gmail.com>

Co-authored-by: Clint Wylie <cjwylie@gmail.com>
2021-06-24 21:54:48 -07:00
Yi Yuan 8de0d36c52
Allow query through router when load moving average extension (#11276)
* init commit

* change NoopQuerySegmentWalker name

* change doc

* move NoopQuerySegmentWalker and add document

* fix doc

Co-authored-by: yuanyi <yuanyi@freewheel.tv>
2021-06-10 18:46:53 +08:00
Yi Yuan 145cf9e5c3
fix document about input format (#11342)
Co-authored-by: yuanyi <yuanyi@freewheel.tv>
2021-06-08 23:44:54 +08:00
frank chen 2ee7e31e5b
Fix syntax error (#11332) 2021-06-07 22:35:02 -07:00
frank chen e664bfd433
Improve doc of movingAverage (#11262)
* Make doc more directive

Signed-off-by: frank chen <frank.chen021@outlook.com>

* Add limitation

Signed-off-by: frank chen <frank.chen021@outlook.com>

* Suppress spelling check error
2021-05-28 13:10:55 +08:00
Agustin Gonzalez 4ba5738ffb
Add an issues section to deal with common issues when building druid (#11271) 2021-05-21 09:04:51 -07:00
Yuanli Han 14f1f2aa76
Fix a broken link in the development doc (#11226) 2021-05-10 16:14:06 +08:00
Yuanli Han 8647040f4d
Allow user to set group.id for Kafka ingestion task (#11147)
* allow user to set group.id for Kafka ingestion task

* fix test coverage by removing deprecated code and add doc

* fix typo

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: frank chen <frankchen@apache.org>

Co-authored-by: frank chen <frankchen@apache.org>
2021-05-09 11:56:19 +08:00
Yuanli Han 34169c8550
fix doc (#11202)
(cherry picked from commit ffb3c049726b5e461c6f7f8b6f4b75d2cb907dcc)
2021-05-05 06:17:07 -07:00
Jeet Patel 7139c60868
Change the `id` for `kubernetes` doc link to work (#11176)
* Change the `id` for doc link to work

* Added `druid-kubernetes-extensions` to the list
2021-04-28 10:12:28 -07:00
sthetland fb6751fa45
Fix old broken link (#11048)
* link check fixes

* updated link target

* Update aggregations.md

* spelling error
2021-04-07 20:40:50 -07:00
Himanshu a0d52c3def
k8s discovery module: fix issue for druid.host being more than 63chars not permitted as k8s resource label value (#10961)
* k8s discovery module: fix issue for druid.host being more than 63chars not permitted as k8s resource label value

* update doc

* fix test
2021-04-07 17:45:28 -07:00
Jihoon Son cfcebc40f6
Allow list for JDBC connection properties to address CVE-2021-26919 (#11047)
* Allow list for JDBC connection properties to address CVE-2021-26919

* fix tests for java 11
2021-04-01 17:30:47 -07:00
Parag Jain b35486fa81
request logs through kafka emitter (#11036)
* request logs through kafka emitter

* travis fixes

* review comments

* kafka emitter unit test

* new line

* travis checks

* checkstyle fix

* count request lost when request topic is null
2021-04-01 11:31:32 +05:30
Charles Smith 8544d29bc7
remove experimental from Kinesis with caveats (#10998)
* remove experimental from Kinesis with caveats

* add suggested known issue

* spelling fixes
2021-03-29 13:57:58 -07:00
Parag Jain 2fdc313e4d
GCS lookup support (#11026)
* GCS lookup support

* checkstyle fix

* review comments

* review comments

* remove unused import
2021-03-30 01:40:41 +05:30
Yi Yuan 36e86a2880
Add protobuf schema registry (#10839)
* dd_protobuf_schema_registry

* change licese

* delete some annotation

* nodify tests

* delete extra exception

* add licenses

* add descriptor and protoMessageType in ProtobufInputRowParser for adopt to old version

* seperate kafka-protobuf-provider

* modify protobuf.md

* refine protobuf.md

* add config and header

* bug fixed

Co-authored-by: yuanyi <yuanyi@freewheel.tv>
2021-03-09 15:15:51 -08:00
Tianxin Zhao a57c28e9ce
prometheus metric exporter (#10412)
* prometheus-emitter

* use existing jetty server to expose prometheus collection endpoint

* unused variables

* better variable names

* removed unused dependencies

* more metric definitions

* reorganize

* use prometheus HTTPServer instead of hooking into Jetty server

* temporary empty help string

* temporary non-empty help.  fix incorrect dimension value in JSON (also updated statsd json)

* added full help text.  added metric conversion factor for timers that are not using seconds. Correct metric dimension name in documentation

* added documentation for prometheus emitter

* safety for invalid labelNames

* fix travis checks

* Unit test and better sanitization of metrics names and label values

* add precondition to check namespace against regex

* use precompiled regex

* remove static imports. fix metric types

* better docs. fix possible NPE in PrometheusEmitterConfig. Guard against multiple calls to PrometheusEmitter.start()

* Update regex for label-value replacements to allow internal numeric values.  Additional tests

* Adds missing license header
updates website/.spelling to add words used in prometheus-emitter docs.
updates docs/operations/metrics.md to correct the spelling of
bufferPoolName

* fixes version in extensions-contrib/prometheus-emitter

* fix style guide errors

* update import ordering

* add another word to website/.spelling

* remove unthrown declared exception

* remove unused import

* Pushgateway strategy for metrics

* typo

* Format fix and nullable strategy

* Update pom file for prometheus-emitter

* code review comments. Counter to gauge for cache metrics, periodical task to pushGateway

* Syntax fix

* Dimension label regex include numeric character back, fix previous commit

* bump prometheus-emitter pom dev version

* Remove scheduled task inside poen that push metrics

* Fix checkstyle

* Unit test coverage

* Unit test coverage

* Spelling

* Doc fix

* spelling

Co-authored-by: Michael Schiff <michael.schiff@tubemogul.com>
Co-authored-by: Michael Schiff <schiff.michael@gmail.com>
Co-authored-by: Tianxin Zhao <tianxin.zhao@tubemogul.com>
Co-authored-by: Tianxin Zhao <tizhao@adobe.com>
2021-03-09 14:37:31 -08:00
zhangyue19921010 bddacbb1c3
Dynamic auto scale Kafka-Stream ingest tasks (#10524)
* druid task auto scale based on kafka lag

* fix kafkaSupervisorIOConfig and KinesisSupervisorIOConfig

* druid task auto scale based on kafka lag

* fix kafkaSupervisorIOConfig and KinesisSupervisorIOConfig

* test dynamic auto scale done

* auto scale tasks tested on prd cluster

* auto scale tasks tested on prd cluster

* modify code style to solve 29055.10 29055.9 29055.17 29055.18 29055.19 29055.20

* rename test fiel function

* change codes and add docs based on capistrant reviewed

* midify test docs

* modify docs

* modify docs

* modify docs

* merge from master

* Extract the autoScale logic out of SeekableStreamSupervisor to minimize putting more stuff inside there &&  Make autoscaling algorithm configurable and scalable.

* fix ci failed

* revert msic.xml

* add uts to test autoscaler create && scale out/in and kafka ingest with scale enable

* add more uts

* fix inner class check

* add IT for kafka ingestion with autoscaler

* add new IT in groups=kafka-index named testKafkaIndexDataWithWithAutoscaler

* review change

* code review

* remove unused imports

* fix NLP

* fix docs and UTs

* revert misc.xml

* use jackson to build autoScaleConfig with default values

* add uts

* use jackson to init AutoScalerConfig in IOConfig instead of Map<>

* autoscalerConfig interface and provide a defaultAutoScalerConfig

* modify uts

* modify docs

* fix checkstyle

* revert misc.xml

* modify uts

* reviewed code change

* reviewed code change

* code reviewed

* code review

* log changed

* do StringUtils.encodeForFormat when create allocationExec

* code review && limit taskCountMax to partitionNumbers

* modify docs

* code review

Co-authored-by: yuezhang <yuezhang@freewheel.tv>
2021-03-06 14:36:52 +05:30
Jihoon Son 16acd6686a
Remove stale 'namespace' config for JDBC lookups from doc (#10886)
* Remove stale 'namespace' config for JDBC lookups from doc and web-console

* revert webconsole change

* address comments
2021-03-04 17:16:34 -08:00
Abhishek Agarwal 96d26e5338
Fix kinesis ingestion bugs (#10761)
* add offsetFetchPeriod to kinesis ingestion doc

* Remove jackson dependencies from extensions

* Use fixed delay for lag collection

* Metrics reset after finishing processing

* comments

* Broaden the list of exceptions to retry for

* Unit tests

* Add more tests

* Refactoring

* re-order metrics

* Doc suggestions

Co-authored-by: Charles Smith <38529548+techdocsmith@users.noreply.github.com>

* Add tests

Co-authored-by: Charles Smith <38529548+techdocsmith@users.noreply.github.com>
2021-02-05 02:49:58 -08:00
Himadri Singh 1c1b396eaa
AWS Web Identity / IRSA Support (#10541)
* AWS Web Identity Support

required for AWS IRSA

* Update kinesis-ingestion.md

* disabling coverage tests

https://github.com/apache/druid/pull/10541#issuecomment-737558213

* exclude coverage

* Update licenses.yaml
2021-01-25 18:44:02 +05:30
Abhishek Agarwal f66fdbfa5d
add offsetFetchPeriod to kinesis ingestion doc (#10734) 2021-01-08 14:19:26 -08:00
Himanshu c7b1212a43
AWS RDS token based password provider (#9518)
* refresh db pwd

* aws iam token password provider

* fix analyze-dependencies build

* fix doc build

* add  ut for BasicDataSourceExt

* more doc updates

* more  doc update

* moving aws  token password  provider to new extension

* remove duplicate changes

* make  all config inline

* extension docs

* refresh db  password  in SQL Firehose code path as well

* add ut

* fix build

* add new extension to distribution

* rds lib is not provided

* fix license build

* add version to license

* change parent version to 0.19.0-snapshot

* address review comments

* fix core/ code coverage

* Update server/src/main/java/org/apache/druid/metadata/BasicDataSourceExt.java

Co-authored-by: Clint Wylie <cjwylie@gmail.com>

* address review comments

* fix spellchecker

* remove inadvertant website file change

Co-authored-by: Clint Wylie <cjwylie@gmail.com>
2021-01-06 21:15:29 -08:00
Himanshu d2e6240cac
k8s-int-test-build: zk-less druid cluster and http based segment/task managment (#10686)
* zk-less druid cluster in k8s build

* attempt to fix build and use http based remote task management

* mm/router logs for debugging

* add default account k8s role and binding for pod, configMap access

* fix issue

* change router port to 8088 for common readinessProbe

* break build_run_k8s_cluster.sh into separate scripts

* revert changes to K8sDruidNodeAnnouncer.java

* k8s extension doc update

* add license to new file

* address review comments

* do not try to load lookups at startup to improve cluster startup time
2021-01-05 18:51:47 -08:00
Charles Smith 797371598d
update syntax for golbal cached uri lookups (#10629) 2020-12-24 09:49:01 -08:00
sthetland 6ae8059c09
cleaning up and fixing links (#10528)
* cleaning up and fixing links

* reverting local link

* Update indexer.md

* link checking

* Fixing one more stale link for PostgreSQL
2020-12-17 13:37:43 -08:00
Himanshu ac1882bf74
kubernetes based discovery druid extension to run Druid on K8S without Zookeeper (#10544)
* honor zk enablement config in more places in druid code

* kubernetes based discovery module

* fix spotbugs check

* fix intellij checks error

* fix doc link to kubernetes.md from extension

* make spellchecker happy

* update license.yaml

* fix dependency check errors

* update extension coverage

* UTs for BaseNodeRoleWatcher

* fix forbidden-api check

* update k8s module coverage ignores

* add Bouncy Castle License being same as MIT License for license checking purposes

* further update licenses.yaml

* label/annotation pre-existence assumption

* address review comment
2020-12-14 21:10:31 -08:00
Himanshu be019760bb
document DynamicConfigProvider for kafka consumer properties (#10658)
* document DynamicConfigProvider for kafka consumer properties

* Update docs/development/extensions-core/kafka-ingestion.md

Co-authored-by: Jihoon Son <jihoonson@apache.org>

* Update docs/development/extensions-core/kafka-ingestion.md

* fix doc build

Co-authored-by: Jihoon Son <jihoonson@apache.org>
2020-12-10 08:24:33 -08:00
zhangyue19921010 229b5f359f
Remove hard limitation that druid(after 0.15.0) only can consume Kafka version 0.11.x or better (#10551)
* remove build in kafka consumer config :

* modify druid docs of kafka indexing service

* yuezhang

* modify doc

* modify docs

* fix kafkaindexTaskTest.java

* revert uncessary change

* add more logs and modify docs

* revert jdk version

* modify docs

* modify-kafka-version v2

* modify docs

* modify docs

* modify docs

* modify docs

* modify docs

* done

* remove useless import

* change code and add UT

Co-authored-by: yuezhang <yuezhang@freewheel.tv>
2020-12-03 17:37:59 -08:00
sthetland ba915b7f56
Security overview documentation (#10339)
* initial file

* initial file

* security overview added

* ldap added

* spacing adjustments

* nits

* security graphics and doc review

* Update docs/operations/security-overview.md

Co-authored-by: Jonathan Wei <jon-wei@users.noreply.github.com>

* Update docs/operations/security-user-auth.md

Co-authored-by: Jonathan Wei <jon-wei@users.noreply.github.com>

* Update docs/operations/security-overview.md

Co-authored-by: Jonathan Wei <jon-wei@users.noreply.github.com>

* Update docs/operations/security-overview.md

Co-authored-by: Jonathan Wei <jon-wei@users.noreply.github.com>

* updates frm review

* review comments

* finish up review and light edits

* broken links

* spell check

Co-authored-by: Jonathan Wei <jon-wei@users.noreply.github.com>
2020-11-19 15:24:58 -08:00
Pierre Carrier 835b328851
docs/: use tuningConfig (#10540) 2020-10-30 09:39:21 -05:00
Charles Smith 9c51047cc8
Document correlation between credential iterations and query latency (#10532)
use link / heading instead of footnote
2020-10-29 12:47:24 -07:00
awelsh93 a966de5319
Add https to druid-influxdb-emitter extension (#9938)
* Add https to druid-influxdb-emitter extension

* address CI failures

* increase test coverage

* tests for being unable to load trustStore

* fix EqualsVerifier test

* fix intellij inspection error

* use try-with-resources when loading trustStore
2020-10-26 19:49:26 -07:00
Joseph Glanville 7ce9ac4548
Fix Avro support in Web Console (#10232)
* Fix Avro OCF detection prefix and run formation detection on raw input

* Support Avro Fixed and Enum types correctly

* Check Avro version byte in format detection

* Add test for AvroOCFReader.sample

Ensures that the Sampler doesn't receive raw input that it can't
serialize into JSON.

* Document Avro type handling

* Add TS unit tests for guessInputFormat
2020-10-07 21:08:22 -07:00
Clint Wylie b95bf444b2
add docs for kinesis lag metrics (#10435) 2020-09-28 13:13:53 -07:00
frank chen 028442e75e
Redis cache extension enhancement (#10240)
* support redis cluster

* add 'password', 'database' properties

* test cases passed

* update doc

* some improvements

* fix CI

* add more test cases to improve branch coverage

* fix dependency check for test

* resolve review comments
2020-08-24 10:29:04 +08:00
Suneet Saldanha 0891b1f833
Add note about aggregations on floats (#10285)
* Add note about aggreations on floats

Floating point math is known to be unstable. Due to the way aggregators work
across segments it's possible for the same query operating on the same data to
produce slightly different results.

The same problem exists with any aggregators that are not commutative since
the merge order across segments is not guaranteed.

* Also talk about doubles

* Apply suggestions from code review
2020-08-17 13:29:57 -07:00
Joseph Glanville f3023c6058
Fix formatting in druid-pac4j documentation (#10174)
Superfluous column broke table formatting.
2020-07-12 18:51:42 -07:00
Antoine Huret 88d20a61a6
renamed authenticationChain to authenticatorChain (#10143) 2020-07-08 19:58:21 -07:00
Gian Merlino 9587fc0b84
Fix documentation for Kinesis fetchThreads. (#10156)
* Fix documentation for Kinesis fetchThreads

The default was changed in #9819, but the documentation wasn't updated.

* Add 'procs' to spelling.
2020-07-08 19:47:09 -07:00
frank chen 60c6bd5b4c
support Aliyun OSS service as deep storage (#9898)
* init commit, all tests passed

* fix format

Signed-off-by: frank chen <frank.chen021@outlook.com>

* data stored successfully

* modify config path

* add doc

* add aliyun-oss extension to project

* remove descriptor deletion code to avoid warning message output by aliyun client

* fix warnings reported by lgtm-com

* fix ci warnings

Signed-off-by: frank chen <frank.chen021@outlook.com>

* fix errors reported by intellj inspection check

Signed-off-by: frank chen <frank.chen021@outlook.com>

* fix doc spelling check

Signed-off-by: frank chen <frank.chen021@outlook.com>

* fix dependency warnings reported by ci

Signed-off-by: frank chen <frank.chen021@outlook.com>

* fix warnings reported by CI

Signed-off-by: frank chen <frank.chen021@outlook.com>

* add package configuration to support showing extension info

Signed-off-by: frank chen <frank.chen021@outlook.com>

* add IT test cases and fix bugs

Signed-off-by: frank chen <frank.chen021@outlook.com>

* 1. code review comments adopted
2. change schema from 'aliyun-oss' to 'oss'

Signed-off-by: frank chen <frank.chen021@outlook.com>

* add license info

Signed-off-by: frank chen <frank.chen021@outlook.com>

* fix doc

Signed-off-by: frank chen <frank.chen021@outlook.com>

* exclude execution of IT testcases of OSS extension from CI

Signed-off-by: frank chen <frank.chen021@outlook.com>

* put the extensions under contrib group and add to distribution

* fix names in test cases

* add unit test to cover OssInputSource

* fix names in test cases

* fix dependency problem reported by CI

Signed-off-by: frank chen <frank.chen021@outlook.com>
2020-07-01 22:20:53 -07:00
Clint Wylie c5540f46ed
fixes for ranger docs (#10109) 2020-07-01 18:26:41 -07:00
Clint Wylie 477335abb4
update links datasketches.github.io to datasketches.apache.org (#10107)
* update links datasketches.github.io to datasketches.apache.org

* now with more apache

* oops

* oops
2020-07-01 14:56:17 -07:00
Lee Rhodes 7b4edc93fc
Update web address to datasketches.apache.org (#10096) 2020-06-30 19:05:23 -07:00
BIGrey 69f2b1ef00
Correct the position of the double quotation in distinctcount.md file (#10094)
```
"dimensions": "[sample_dim]"
```
should be
```
"dimensions": ["sample_dim"]
```
2020-06-29 20:59:56 -07:00
frank chen b91d50044e
add some details to the build doc (#9885)
* update initial build command

* add some details for building

* fix spelling check errors

* fix spelling check warnings

Signed-off-by: frank chen <frank.chen021@outlook.com>
2020-05-21 12:35:54 -07:00
sthetland ce03f31a73
Clarifying workerThreads and a few other nits (#9804)
* Update data-formats.md

Per Suneet, "Since you're editing this file can you also fix the json on line 177 please - it's missing a comma after the }"

* Light text cleanup

* Removing discussion of sample data, since it's repeated in the data loading tutorial, and not immediately relevant here.

* Clarifying accepted values for URI lookup

* Update index.md

* original quickstart full first pass

* original quickstart full first pass

* first pass all the way through

* straggler

* image touchups and finished old tutorial

* a bit of finishing up

* druid-caffeine-cache ext previously removed

* Sample MaxDirectMemorySize value unrealistic

* Review comments

* fixing links

* spell checking gymnastics

* workerThreads desc slightly expanded

* typo

* Typo

* Reversing Kafka config order

* Changing order of configs for Kinesis

* Trying this again: ioConfig then tuningConfig
2020-05-06 09:05:18 -07:00
Alexander Saydakov 844d626738
added number of bins parameter (#9436)
* added number of bins parameter

* addressed review points

* test equals

Co-authored-by: AlexanderSaydakov <AlexanderSaydakov@users.noreply.github.com>
2020-05-04 16:53:09 -07:00
Jian Wang 85dfbb64cb
Update documention for metricCompression (#9811) 2020-05-03 12:56:48 -07:00
Francesco Nidito e7e41e3a36
Adding support for autoscaling in GCE (#8987)
* Adding support for autoscaling in GCE

* adding extra google deps also in gce pom

* fix link in doc

* remove unused deps

* adding terms to spelling file

* version in pom 0.17.0-incubating-SNAPSHOT --> 0.18.0-SNAPSHOT

* GCEXyz -> GceXyz in naming for consistency

* add preconditions

* add VisibleForTesting annotation

* typos in comments

* use StringUtils.format instead of String.format

* use custom exception instead of exit

* factorize interval time between retries

* making literal value a constant

* iter all network interfaces

* use provided on google (non api) deps

* adding missing dep

* removing unneded this and use Objects methods instead o 3-way if in hash and comparison

* adding import

* adding retries around getRunningInstances and adding limit for operation end waiting

* refactor GceEnvironmentConfig.hashCode

* 0.18.0-SNAPSHOT -> 0.19.0-SNAPSHOT

* removing unused config

* adding tests to hash and equals

* adding nullable to waitForOperationEnd

* adding testTerminate

* adding unit tests for createComputeService

* increasing retries in unrelated integration-test to prevent sporadic failure (hopefully)

* reverting queryResponseTemplate change

* adding comment for Compute.Builder.build() returning null
2020-04-28 03:13:39 -07:00
Gian Merlino 42590ae64b
Refresh query docs. (#9704)
* Refresh query docs.

Larger changes:

- New doc: querying/datasource.md describes the various kinds of
datasources you can use, and has examples for both SQL and native.
- New doc: querying/query-execution.md describes how native queries
are executed at a high level. It doesn't go into the details of specific
query engines or how queries run at a per-segment level. But I think it
would be good to add or link that content here in the future.
- Refreshed doc: querying/sql.md updated to refer to joins, reformatted
a bit, added a new "Query translation" section that explains how
queries are translated from SQL to native, and removed configuration
details (moved to configuration/index.md).
- Refreshed doc: querying/joins.md updated to refer to join datasources.

Smaller changes:

- Add helpful banners to the top of query documentation pages telling
people whether a given page describes SQL, native, or both.
- Add SQL metrics to operations/metrics.md.
- Add some color and cross-links in various places.
- Add native query component docs to the sidebar, and renamed them so
they look nicer.
- Remove Select query from the sidebar.
- Fix Broker SQL configs in configuration/index.md. Remove them from
querying/sql.md.
- Combined querying/searchquery.md and querying/searchqueryspec.md.

* Updates.

* Fix numbering.

* Fix glitches.

* Add new words to spellcheck file.

* Assorted changes.

* Further adjustments.

* Add missing punctuation.
2020-04-15 16:12:20 -07:00
Will Salisbury cda9f41e69
s/S3/GCS/g (#9700)
fix typo [ at least I hope this was a typo… ]
2020-04-14 18:39:54 -07:00
Himanshu ca369e5768
druid-pac4j: add ability to use custom ssl trust store while talking to auth server (#9637)
* druid-pac4j: add ability for custom ssl trust store for talking to auth
server

* fix nimbusds DefaultResourceRetriever name in comment
2020-04-10 18:01:59 -07:00
bolkedebruin ab5ac7f890
Document possible vulnerabilities for the druid-ranger-security (#9649)
* Document possible vulnerabilities for the druid-ranger-security

In certain configurations the ranger plugin can expose vulnerabilities due
to some of its dependencies having CVEs.

* Spelling checker is a bit tight
2020-04-09 10:43:11 -07:00
bolkedebruin 2d99966933
Add Apache Ranger Authorization (#9579) 2020-04-04 18:02:24 +02:00
Maytas Monsereenusorn 1852bf33ea
Add Integration Test for functionality of kinesis ingestion (#9576)
* kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* Kinesis IT

* fix kinesis timeout

* Kinesis IT

* Kinesis IT

* fix checkstyle

* Kinesis IT

* address comments

* fix checkstyle
2020-04-03 09:45:22 -07:00
Clint Wylie bf85ea19b2
roaring bitmaps by default (#9548)
* it is finally time

* fix it

* more docs

* fix doc
2020-03-23 18:15:57 -07:00
Himanshu 5604ac7963
druid extension for OpenID Connect auth using pac4j lib (#8992)
* druid pac4j security extension for OpenID Connect OAuth 2.0 authentication

* update version in druid-pac4j pom

* introducing unauthorized resource filter

* authenticated but authorized /unified-webconsole.html

* use httpReq.getRequestURI() for matching callback path

* add documentation

* minor doc addition

* licesne file updates

* make dependency analyze succeed

* fix doc build

* hopefully fixes doc build

* hopefully fixes license check build

* yet another try on fixing license build

* revert unintentional changes to website folder

* update version to 0.18.0-SNAPSHOT

* check session and its expiry on each request

* add crypto service

* code for encrypting the cookie

* update doc with cookiePassphrase

* update license yaml

* make sessionstore in Pac4jFilter private non static

* make Pac4jFilter fields final

* okta: use sha256 for hmac

* remove incubating

* add UTs for crypto util and session store impl

* use standard charsets

* add license header

* remove unused file

* add org.objenesis.objenesis to license.yaml

* a bit of nit changes  in CryptoService  and embedding EncryptionResult for clarity

* rename alg  to cipherAlgName

* take cipher alg name, mode and padding as input

* add java doc  for CryptoService  and make it more understandable

* another  UT for CryptoService

* cache pac4j Config

* use generics clearly in Pac4jSessionStore

* update cookiePassphrase doc to mention PasswordProvider

* mark stuff Nullable where appropriate in Pac4jSessionStore

* update doc to mention jdbc

* add error log on reaching callback resource

* javadoc  for Pac4jCallbackResource

* introduce NOOP_HTTP_ACTION_ADAPTER

* add correct module name in license file

* correct extensions folder name in licenses.yaml

* replace druid-kubernetes-extensions to druid-pac4j

* cache SecureRandom instance

* rename UnauthorizedResourceFilter to AuthenticationOnlyResourceFilter
2020-03-23 18:15:45 -07:00
Clint Wylie d8833316c4
fix broken links (#9537)
* fix broken links

* missing /

* adjustment
2020-03-22 17:41:18 -07:00
Chi Cao Minh e7b3dd9cd1
Update to mysql connector 5.1.48 (#9514) 2020-03-16 10:38:31 -07:00
Jihoon Son 3016057178
Make Transform an ExtensionPoint (#9319)
* Make Transform an ExtensionPoint

* Add transform to the list of documented extensions

* Add example transform implementation
2020-03-04 12:13:14 -08:00
Maytas Monsereenusorn 92fb83726b
Add support for optional aws credentials for s3 for ingestion (#9375)
* Add support for optional cloud (aws, gcs, etc.) credentials for s3 for ingestion

* Add support for optional cloud (aws, gcs, etc.) credentials for s3 for ingestion

* Add support for optional cloud (aws, gcs, etc.) credentials for s3 for ingestion

* fix build failure

* fix failing build

* fix failing build

* Code cleanup

* fix failing test

* Removed CloudConfigProperties and make specific class for each cloudInputSource

* Removed CloudConfigProperties and make specific class for each cloudInputSource

* pass s3ConfigProperties for split

* lazy init s3client

* update docs

* fix docs check

* address comments

* add ServerSideEncryptingAmazonS3.Builder

* fix failing checkstyle

* fix typo

* wrap the ServerSideEncryptingAmazonS3.Builder in a provider

* added java docs for S3InputSource constructor

* added java docs for S3InputSource constructor

* remove wrap the ServerSideEncryptingAmazonS3.Builder in a provider
2020-02-25 20:59:53 -08:00
zachjsh d771b42ed1
Move Azure extension into Core (#9394)
* Move Azure extension into Core

Moving the azure extension into Core.

* * Fix build failure

* * Add The MIT License (MIT) to list of compatible licenses

* * Address review comments

* * change reference to contrib azure to core azure

* * Fix spelling mistakes.
2020-02-25 17:49:16 -08:00
Chi Cao Minh 7fc99ee206
Add common optional dependencies for extensions (#9399)
* Add common optional dependencies for extensions

Include hadoop-aws and postgres JDBC connector jar to improve
out-of-the-box experience for extensions. The mysql JDBC connector jar
is not bundled as it is GPL.

* Update docs

* Fix typo
2020-02-25 00:04:00 -08:00
zachjsh f707064bed
Add Azure config options for segment prefix and max listing length (#9356)
* Add Azure config options for segment prefix and max listing length

Added configuration options to allow the user to specify the prefix
within the segment container to store the segment files. Also
added a configuration option to allow the user to specify the
maximum number of input files to stream for each iteration.

* * Fix test failures

* * Address review comments

* * add dependency explicitly to pom

* * update docs

* * Address review comments

* * Address review comments
2020-02-21 14:12:03 -08:00
Björn Zettergren 30c24df4d3
Add config option for namespacePrefix (#9372)
* Add config option for namespacePrefix

opentsdb emitter sends metric names to opentsdb verbatim as what druid
names them, for example "query.count", this doesn't fit well with a
central opentsdb server which might have namespaced metrics, for example
"druid.query.count". This adds support for adding an optional prefix.

The prefix also gets a trailing dot (.), after it, so the metric name
becomes <namespacePrefix>.<metricname>

configureable as "druid.emitter.opentsdb.namespacePrefix", as
documented.

Co-authored-by: Martin Gerholm <martin.gerholm@deltaprojects.com>
Signed-off-by: Martin Gerholm <martin.gerholm@deltaprojects.com>
Signed-off-by: Björn Zettergren <bjorn.zettergren@deltaprojects.com>

* Spelling for PR #9372

Added "namespacePrefix" to .spelling exceptions, it's a variable name
used in documentation for opentsdb-emitter.

* fixing tests for PR #9372

changed naming of variables to be more descriptive
added test of prefix being an empty string: "".
added a conditional to buildNamespacePrefix to check for empty string
being fed if EventConverter called without OpentsdbEmitterConfig
instance.

* fixing checkstyle errors for PR #9372

used == to compare literal string, should be equals()

* cleaned up and updated PR #9372

Created a buildMetric function as suggested by clintropolis, and
removed redundant tests for empty strings as they're only used when
calling EventConverter directly without going through
OpentsdbEmitterConfig.

* consistent naming of tests PR #9372

Changed names of tests in files to match better with what it was
actually testing

changed check for Strings.isNullOrEmpty to just check for `null`, as
empty string valued `namespacePrefix` is handled in
OpentsdbEmitterConfig.

Co-authored-by: Martin Gerholm <inspector-martin@users.noreply.github.com>
2020-02-20 14:01:41 -08:00
Clint Wylie c3ebb5eb65
variance aggregator support for double columns (#9076)
* variance aggregator support for double column instead of casting to float

* docs

* everything in its right place

* checkstyle

* adjustments
2020-02-12 09:32:42 -08:00
Dusan Maric ebd199da73
docs: extensions-core: mysql: fix MySQL connector library Maven Central URL (#9344) 2020-02-10 21:54:46 -08:00
Clint Wylie b55657cc26
fix protobuf extension packaging and docs (#9320)
* fix protobuf extension packaging and docs

* fix paths

* Update protobuf.md

* Update protobuf.md
2020-02-07 09:26:52 -08:00
sthetland 556a3861ed
Make docs on reset supervisor operation scarier (#9288)
* Update kafka-ingestion.md

Companion doc update to #9253, intended to make a supervisor reset scarier

* Update kinesis-ingestion.md
2020-02-04 15:30:31 -08:00
Suneet Saldanha 93167188ea Update docs for extensions (#9218)
* Update docs for s3 and avro extensions

* More doc updates - google + cleanup
2020-01-19 12:49:33 -08:00