752 lines
32 KiB
Plaintext
752 lines
32 KiB
Plaintext
[[breaking-changes-3.0]]
|
|
== Breaking changes in 3.0
|
|
|
|
This section discusses the changes that you need to be aware of when migrating
|
|
your application to Elasticsearch 3.0.
|
|
|
|
* <<breaking_30_search_changes>>
|
|
* <<breaking_30_rest_api_changes>>
|
|
* <<breaking_30_parent_child_changes>>
|
|
* <<breaking_30_settings_changes>>
|
|
* <<breaking_30_mapping_changes>>
|
|
* <<breaking_30_plugins>>
|
|
* <<breaking_30_java_api_changes>>
|
|
* <<breaking_30_cache_concurrency>>
|
|
* <<breaking_30_non_loopback>>
|
|
* <<breaking_30_thread_pool>>
|
|
* <<breaking_30_allocation>>
|
|
* <<breaking_30_percolator>>
|
|
* <<breaking_30_packaging>>
|
|
* <<breaking_30_scripting>>
|
|
* <<breaking_30_term_vectors>>
|
|
|
|
[[breaking_30_search_changes]]
|
|
=== Warmers
|
|
|
|
Thanks to several changes like doc values by default or disk-based norms,
|
|
warmers have become quite useless. As a consequence, warmers and the warmer
|
|
API have been removed: it is not possible anymore to register queries that
|
|
will run before a new IndexSearcher is published.
|
|
|
|
Don't worry if you have warmers defined on your indices, they will simply be
|
|
ignored when upgrading to 3.0.
|
|
|
|
=== Search changes
|
|
|
|
==== `search_type=count` removed
|
|
|
|
The `count` search type was deprecated since version 2.0.0 and is now removed.
|
|
In order to get the same benefits, you just need to set the value of the `size`
|
|
parameter to `0`.
|
|
|
|
For instance, the following request:
|
|
|
|
[source,sh]
|
|
---------------
|
|
GET /my_index/_search?search_type=count
|
|
{
|
|
"aggs": {
|
|
"my_terms": {
|
|
"terms": {
|
|
"field": "foo"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
---------------
|
|
|
|
can be replaced with:
|
|
|
|
[source,sh]
|
|
---------------
|
|
GET /my_index/_search
|
|
{
|
|
"size": 0,
|
|
"aggs": {
|
|
"my_terms": {
|
|
"terms": {
|
|
"field": "foo"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
---------------
|
|
|
|
==== `search_type=scan` removed
|
|
|
|
The `scan` search type was deprecated since version 2.1.0 and is now removed.
|
|
All benefits from this search type can now be achieved by doing a scroll
|
|
request that sorts documents in `_doc` order, for instance:
|
|
|
|
[source,sh]
|
|
---------------
|
|
GET /my_index/_search?scroll=2m
|
|
{
|
|
"sort": [
|
|
"_doc"
|
|
]
|
|
}
|
|
---------------
|
|
|
|
Scroll requests sorted by `_doc` have been optimized to more efficiently resume
|
|
from where the previous request stopped, so this will have the same performance
|
|
characteristics as the former `scan` search type.
|
|
|
|
[[breaking_30_rest_api_changes]]
|
|
=== REST API changes
|
|
|
|
==== search exists api removed
|
|
|
|
The search exists api has been removed in favour of using the search api with
|
|
`size` set to `0` and `terminate_after` set to `1`.
|
|
|
|
==== `/_optimize` endpoint removed
|
|
|
|
The deprecated `/_optimize` endpoint has been removed. The `/_forcemerge`
|
|
endpoint should be used in lieu of optimize.
|
|
|
|
The `GET` HTTP verb for `/_forcemerge` is no longer supported, please use the
|
|
`POST` HTTP verb.
|
|
|
|
==== Deprecated queries removed
|
|
|
|
The following deprecated queries have been removed:
|
|
* `filtered`: use `bool` query instead, which supports `filter` clauses too
|
|
* `and`: use `must` clauses in a `bool` query instead
|
|
* `or`: use should clauses in a `bool` query instead
|
|
* `limit`: use `terminate_after` parameter instead
|
|
* `fquery`: obsolete after filters and queries have been merged
|
|
* `query`: obsolete after filters and queries have been merged
|
|
|
|
==== Unified fuzziness parameter
|
|
|
|
* Removed support for the deprecated `min_similarity` parameter in `fuzzy query`, in favour of `similarity`.
|
|
* Removed support for the deprecated `fuzzy_min_sim` parameter in `query_string` query, in favour of `similarity`.
|
|
* Removed support for the deprecated `edit_distance` parameter in completion suggester, in favour of `similarity`.
|
|
|
|
==== indices query
|
|
|
|
Removed support for the deprecated `filter` and `no_match_filter` fields in `indices` query,
|
|
in favour of `query` and `no_match_query`.
|
|
|
|
==== nested query
|
|
|
|
Removed support for the deprecated `filter` fields in `nested` query, in favour of `query`.
|
|
|
|
==== terms query
|
|
|
|
Removed support for the deprecated `minimum_should_match` and `disable_coord` in `terms` query, use `bool` query instead.
|
|
Removed also support for the deprecated `execution` parameter.
|
|
|
|
==== function_score query
|
|
|
|
Removed support for the top level `filter` element in `function_score` query, replaced by `query`.
|
|
|
|
==== highlighters
|
|
|
|
Removed support for multiple highlighter names, the only supported ones are: `plain`, `fvh` and `postings`.
|
|
|
|
==== top level filter
|
|
|
|
Removed support for the deprecated top level `filter` in the search api, replaced by `post_filter`.
|
|
|
|
==== `query_binary` and `filter_binary` removed
|
|
|
|
Removed support for the undocumented `query_binary` and `filter_binary` sections of a search request.
|
|
|
|
==== `span_near`'s' `collect_payloads` deprecated
|
|
|
|
Payloads are now loaded when needed.
|
|
|
|
[[breaking_30_parent_child_changes]]
|
|
=== Parent/Child changes
|
|
|
|
The `children` aggregation, parent child inner hits and `has_child` and `has_parent` queries will not work on indices
|
|
with `_parent` field mapping created before version `2.0.0`. The data of these indices need to be re-indexed into a new index.
|
|
|
|
The format of the join between parent and child documents have changed with the `2.0.0` release. The old
|
|
format can't read from version `3.0.0` and onwards. The new format allows for a much more efficient and
|
|
scalable join between parent and child documents and the join data structures are stored on disk
|
|
data structures as opposed as before the join data structures were stored in the jvm heap space.
|
|
|
|
==== `score_type` has been removed
|
|
|
|
The `score_type` option has been removed from the `has_child` and `has_parent` queries in favour of the `score_mode` option
|
|
which does the exact same thing.
|
|
|
|
==== `sum` score mode removed
|
|
|
|
The `sum` score mode has been removed in favour of the `total` mode which does the same and is already available in
|
|
previous versions.
|
|
|
|
==== `max_children` option
|
|
|
|
When `max_children` was set to `0` on the `has_child` query then there was no upper limit on how many children documents
|
|
are allowed to match. This has changed and `0` now really means to zero child documents are allowed. If no upper limit
|
|
is needed then the `max_children` option shouldn't be defined at all on the `has_child` query.
|
|
|
|
==== `_parent` field no longer indexed
|
|
|
|
The join between parent and child documents no longer relies on indexed fields and therefor from `3.0.0` onwards
|
|
the `_parent` indexed field won't be indexed. In order to find documents that referrer to a specific parent id
|
|
the new `parent_id` query can be used. The get response and hits inside the search response remain to include
|
|
the parent id under the `_parent` key.
|
|
|
|
[[breaking_30_settings_changes]]
|
|
=== Settings changes
|
|
|
|
From Elasticsearch 3.0 on all settings are validated before they are applied. Node level and default index
|
|
level settings are validated on node startup, dynamic cluster and index setting are validated before they are updated/added
|
|
to the cluster state. Every setting must be a _known_ setting or in other words all settings must be registered with the
|
|
node or transport client they are used with. This implies that plugins that define custom settings must register all of their
|
|
settings during pluging loading using the `SettingsModule#registerSettings(Setting)` method.
|
|
|
|
==== Node settings
|
|
|
|
The `name` setting has been removed and is replaced by `node.name`. Usage of `-Dname=some_node_name` is not supported
|
|
anymore.
|
|
|
|
==== Transport Settings
|
|
|
|
All settings with a `netty` infix have been replaced by their already existing `transport` synonyms. For instance `transport.netty.bind_host` is
|
|
no longer supported and should be replaced by the superseding setting `transport.bind_host`.
|
|
|
|
==== Analysis settings
|
|
|
|
The `index.analysis.analyzer.default_index` analyzer is not supported anymore.
|
|
If you wish to change the analyzer to use for indexing, change the
|
|
`index.analysis.analyzer.default` analyzer instead.
|
|
|
|
==== Ping timeout settings
|
|
|
|
Previously, there were three settings for the ping timeout: `discovery.zen.initial_ping_timeout`,
|
|
`discovery.zen.ping.timeout` and `discovery.zen.ping_timeout`. The former two have been removed and
|
|
the only setting key for the ping timeout is now `discovery.zen.ping_timeout`. The default value for
|
|
ping timeouts remains at three seconds.
|
|
|
|
==== Recovery settings
|
|
|
|
Recovery settings deprecated in 1.x have been removed:
|
|
|
|
* `index.shard.recovery.translog_size` is superseded by `indices.recovery.translog_size`
|
|
* `index.shard.recovery.translog_ops` is superseded by `indices.recovery.translog_ops`
|
|
* `index.shard.recovery.file_chunk_size` is superseded by `indices.recovery.file_chunk_size`
|
|
* `index.shard.recovery.concurrent_streams` is superseded by `indices.recovery.concurrent_streams`
|
|
* `index.shard.recovery.concurrent_small_file_streams` is superseded by `indices.recovery.concurrent_small_file_streams`
|
|
* `indices.recovery.max_size_per_sec` is superseded by `indices.recovery.max_bytes_per_sec`
|
|
|
|
If you are using any of these settings please take the time and review their purpose. All of the settings above are considered
|
|
_expert settings_ and should only be used if absolutely necessary. If you have set any of the above setting as persistent
|
|
cluster settings please use the settings update API and set their superseded keys accordingly.
|
|
|
|
The following settings have been removed without replacement
|
|
|
|
* `indices.recovery.concurrent_small_file_streams` - recoveries are now single threaded. The number of concurrent outgoing recoveries are throttled via allocation deciders
|
|
* `indices.recovery.concurrent_file_streams` - recoveries are now single threaded. The number of concurrent outgoing recoveries are throttled via allocation deciders
|
|
|
|
==== Translog settings
|
|
|
|
The `index.translog.flush_threshold_ops` setting is not supported anymore. In order to control flushes based on the transaction log
|
|
growth use `index.translog.flush_threshold_size` instead. Changing the translog type with `index.translog.fs.type` is not supported
|
|
anymore, the `buffered` implementation is now the only available option and uses a fixed `8kb` buffer.
|
|
|
|
The translog by default is fsynced on a request basis such that the ability to fsync on every operation is not necessary anymore. In-fact it can
|
|
be a performance bottleneck and it's trappy since it enabled by a special value set on `index.translog.sync_interval`. `index.translog.sync_interval`
|
|
now doesn't accept a value less than `100ms` which prevents fsyncing too often if async durability is enabled. The special value `0` is not supported anymore.
|
|
|
|
==== Request Cache Settings
|
|
|
|
The deprecated settings `index.cache.query.enable` and `indices.cache.query.size` have been removed and are replaced with
|
|
`index.requests.cache.enable` and `indices.requests.cache.size` respectively.
|
|
|
|
==== Allocation settings
|
|
|
|
Allocation settings deprecated in 1.x have been removed:
|
|
|
|
* `cluster.routing.allocation.concurrent_recoveries` is superseded by `cluster.routing.allocation.node_concurrent_recoveries`
|
|
|
|
Please change the setting in your configuration files or in the clusterstate to use the new settings instead.
|
|
|
|
==== Similarity settings
|
|
|
|
The 'default' similarity has been renamed to 'classic'.
|
|
|
|
==== Indexing settings
|
|
|
|
`indices.memory.min_shard_index_buffer_size` and `indices.memory.max_shard_index_buffer_size` are removed since Elasticsearch now allows any one shard to any
|
|
amount of heap as long as the total indexing buffer heap used across all shards is below the node's `indices.memory.index_buffer_size` (default: 10% of the JVM heap)
|
|
|
|
[[breaking_30_mapping_changes]]
|
|
=== Mapping changes
|
|
|
|
==== Default doc values settings
|
|
|
|
Doc values are now also on by default on numeric and boolean fields that are
|
|
not indexed.
|
|
|
|
==== Transform removed
|
|
|
|
The `transform` feature from mappings has been removed. It made issues very hard to debug.
|
|
|
|
==== Default number mappings
|
|
|
|
When a floating-point number is encountered, it is now dynamically mapped as a
|
|
float by default instead of a double. The reasoning is that floats should be
|
|
more than enough for most cases but would decrease storage requirements
|
|
significantly.
|
|
|
|
==== `index` property
|
|
|
|
On all types but `string`, the `index` property now only accepts `true`/`false`
|
|
instead of `not_analyzed`/`no`. The `string` field still accepts
|
|
`analyzed`/`not_analyzed`/`no`.
|
|
|
|
==== `_source`'s `format` option
|
|
|
|
The `_source` mapping does not support the `format` option anymore. This option
|
|
will still be accepted for indices created before the upgrade to 3.0 for backward
|
|
compatibility, but it will have no effect. Indices created on or after 3.0 will
|
|
reject this option.
|
|
|
|
==== Object notation
|
|
|
|
Core types don't support the object notation anymore, which allowed to provide
|
|
values as follows:
|
|
|
|
[source,json]
|
|
-----
|
|
{
|
|
"value": "field_value",
|
|
"boost": 42
|
|
}
|
|
----
|
|
|
|
==== `fielddata.format`
|
|
|
|
Setting `fielddata.format: doc_values` in the mappings used to implicitly
|
|
enable doc values on a field. This no longer works: the only way to enable or
|
|
disable doc values is by using the `doc_values` property of mappings.
|
|
|
|
|
|
[[breaking_30_plugins]]
|
|
=== Plugin changes
|
|
|
|
==== Site plugins removed
|
|
|
|
Site plugins have been removed. It is recommended to migrate site plugins to Kibana plugins.
|
|
|
|
==== Multicast plugin removed
|
|
|
|
Multicast has been removed. Use unicast discovery, or one of the cloud discovery plugins.
|
|
|
|
==== Plugins with custom query implementations
|
|
|
|
Plugins implementing custom queries need to implement the `fromXContent(QueryParseContext)` method in their
|
|
`QueryParser` subclass rather than `parse`. This method will take care of parsing the query from `XContent` format
|
|
into an intermediate query representation that can be streamed between the nodes in binary format, effectively the
|
|
query object used in the java api. Also, the query parser needs to implement the `getBuilderPrototype` method that
|
|
returns a prototype of the `NamedWriteable` query, which allows to deserialize an incoming query by calling
|
|
`readFrom(StreamInput)` against it, which will create a new object, see usages of `Writeable`. The `QueryParser`
|
|
also needs to declare the generic type of the query that it supports and it's able to parse.
|
|
The query object can then transform itself into a lucene query through the new `toQuery(QueryShardContext)` method,
|
|
which returns a lucene query to be executed on the data node.
|
|
|
|
Similarly, plugins implementing custom score functions need to implement the `fromXContent(QueryParseContext)`
|
|
method in their `ScoreFunctionParser` subclass rather than `parse`. This method will take care of parsing
|
|
the function from `XContent` format into an intermediate function representation that can be streamed between
|
|
the nodes in binary format, effectively the function object used in the java api. Also, the query parser needs
|
|
to implement the `getBuilderPrototype` method that returns a prototype of the `NamedWriteable` function, which
|
|
allows to deserialize an incoming function by calling `readFrom(StreamInput)` against it, which will create a
|
|
new object, see usages of `Writeable`. The `ScoreFunctionParser` also needs to declare the generic type of the
|
|
function that it supports and it's able to parse. The function object can then transform itself into a lucene
|
|
function through the new `toFunction(QueryShardContext)` method, which returns a lucene function to be executed
|
|
on the data node.
|
|
|
|
==== Cloud AWS plugin changes
|
|
|
|
Cloud AWS plugin has been split in two plugins:
|
|
|
|
* {plugins}/discovery-ec2.html[Discovery EC2 plugin]
|
|
* {plugins}/repository-s3.html[Repository S3 plugin]
|
|
|
|
Proxy settings for both plugins have been renamed:
|
|
|
|
* from `cloud.aws.proxy_host` to `cloud.aws.proxy.host`
|
|
* from `cloud.aws.ec2.proxy_host` to `cloud.aws.ec2.proxy.host`
|
|
* from `cloud.aws.s3.proxy_host` to `cloud.aws.s3.proxy.host`
|
|
* from `cloud.aws.proxy_port` to `cloud.aws.proxy.port`
|
|
* from `cloud.aws.ec2.proxy_port` to `cloud.aws.ec2.proxy.port`
|
|
* from `cloud.aws.s3.proxy_port` to `cloud.aws.s3.proxy.port`
|
|
|
|
==== Cloud Azure plugin changes
|
|
|
|
Cloud Azure plugin has been split in three plugins:
|
|
|
|
* {plugins}/discovery-azure.html[Discovery Azure plugin]
|
|
* {plugins}/repository-azure.html[Repository Azure plugin]
|
|
* {plugins}/store-smb.html[Store SMB plugin]
|
|
|
|
If you were using the `cloud-azure` plugin for snapshot and restore, you had in `elasticsearch.yml`:
|
|
|
|
[source,yaml]
|
|
-----
|
|
cloud:
|
|
azure:
|
|
storage:
|
|
account: your_azure_storage_account
|
|
key: your_azure_storage_key
|
|
-----
|
|
|
|
You need to give a unique id to the storage details now as you can define multiple storage accounts:
|
|
|
|
[source,yaml]
|
|
-----
|
|
cloud:
|
|
azure:
|
|
storage:
|
|
my_account:
|
|
account: your_azure_storage_account
|
|
key: your_azure_storage_key
|
|
-----
|
|
|
|
|
|
==== Cloud GCE plugin changes
|
|
|
|
Cloud GCE plugin has been renamed to {plugins}/discovery-gce.html[Discovery GCE plugin].
|
|
|
|
[[breaking_30_java_api_changes]]
|
|
=== Java API changes
|
|
|
|
==== Count api has been removed
|
|
|
|
The deprecated count api has been removed from the Java api, use the search api instead and set size to 0.
|
|
|
|
The following call
|
|
|
|
[source,java]
|
|
-----
|
|
client.prepareCount(indices).setQuery(query).get();
|
|
-----
|
|
|
|
can be replaced with
|
|
|
|
[source,java]
|
|
-----
|
|
client.prepareSearch(indices).setSource(new SearchSourceBuilder().size(0).query(query)).get();
|
|
-----
|
|
|
|
==== BoostingQueryBuilder
|
|
|
|
Removed setters for mandatory positive/negative query. Both arguments now have
|
|
to be supplied at construction time already and have to be non-null.
|
|
|
|
==== SpanContainingQueryBuilder
|
|
|
|
Removed setters for mandatory big/little inner span queries. Both arguments now have
|
|
to be supplied at construction time already and have to be non-null. Updated
|
|
static factory methods in QueryBuilders accordingly.
|
|
|
|
==== SpanOrQueryBuilder
|
|
|
|
Making sure that query contains at least one clause by making initial clause mandatory
|
|
in constructor.
|
|
|
|
==== SpanNearQueryBuilder
|
|
|
|
Removed setter for mandatory slop parameter, needs to be set in constructor now. Also
|
|
making sure that query contains at least one clause by making initial clause mandatory
|
|
in constructor. Updated the static factory methods in QueryBuilders accordingly.
|
|
|
|
==== SpanNotQueryBuilder
|
|
|
|
Removed setter for mandatory include/exclude span query clause, needs to be set in constructor now.
|
|
Updated the static factory methods in QueryBuilders and tests accordingly.
|
|
|
|
==== SpanWithinQueryBuilder
|
|
|
|
Removed setters for mandatory big/little inner span queries. Both arguments now have
|
|
to be supplied at construction time already and have to be non-null. Updated
|
|
static factory methods in QueryBuilders accordingly.
|
|
|
|
==== QueryFilterBuilder
|
|
|
|
Removed the setter `queryName(String queryName)` since this field is not supported
|
|
in this type of query. Use `FQueryFilterBuilder.queryName(String queryName)` instead
|
|
when in need to wrap a named query as a filter.
|
|
|
|
==== WrapperQueryBuilder
|
|
|
|
Removed `wrapperQueryBuilder(byte[] source, int offset, int length)`. Instead simply
|
|
use `wrapperQueryBuilder(byte[] source)`. Updated the static factory methods in
|
|
QueryBuilders accordingly.
|
|
|
|
==== QueryStringQueryBuilder
|
|
|
|
Removed ability to pass in boost value using `field(String field)` method in form e.g. `field^2`.
|
|
Use the `field(String, float)` method instead.
|
|
|
|
==== Operator
|
|
|
|
Removed the enums called `Operator` from `MatchQueryBuilder`, `QueryStringQueryBuilder`,
|
|
`SimpleQueryStringBuilder`, and `CommonTermsQueryBuilder` in favour of using the enum
|
|
defined in `org.elasticsearch.index.query.Operator` in an effort to consolidate the
|
|
codebase and avoid duplication.
|
|
|
|
==== queryName and boost support
|
|
|
|
Support for `queryName` and `boost` has been streamlined to all of the queries. That is
|
|
a breaking change till queries get sent over the network as serialized json rather
|
|
than in `Streamable` format. In fact whenever additional fields are added to the json
|
|
representation of the query, older nodes might throw error when they find unknown fields.
|
|
|
|
==== InnerHitsBuilder
|
|
|
|
InnerHitsBuilder now has a dedicated addParentChildInnerHits and addNestedInnerHits methods
|
|
to differentiate between inner hits for nested vs. parent / child documents. This change
|
|
makes the type / path parameter mandatory.
|
|
|
|
==== MatchQueryBuilder
|
|
|
|
Moving MatchQueryBuilder.Type and MatchQueryBuilder.ZeroTermsQuery enum to MatchQuery.Type.
|
|
Also reusing new Operator enum.
|
|
|
|
==== MoreLikeThisQueryBuilder
|
|
|
|
Removed `MoreLikeThisQueryBuilder.Item#id(String id)`, `Item#doc(BytesReference doc)`,
|
|
`Item#doc(XContentBuilder doc)`. Use provided constructors instead.
|
|
|
|
Removed `MoreLikeThisQueryBuilder#addLike` in favor of texts and/or items being provided
|
|
at construction time. Using arrays there instead of lists now.
|
|
|
|
Removed `MoreLikeThisQueryBuilder#addUnlike` in favor to using the `unlike` methods
|
|
which take arrays as arguments now rather than the lists used before.
|
|
|
|
The deprecated `docs(Item... docs)`, `ignoreLike(Item... docs)`,
|
|
`ignoreLike(String... likeText)`, `addItem(Item... likeItems)` have been removed.
|
|
|
|
==== GeoDistanceQueryBuilder
|
|
|
|
Removing individual setters for lon() and lat() values, both values should be set together
|
|
using point(lon, lat).
|
|
|
|
==== GeoDistanceRangeQueryBuilder
|
|
|
|
Removing setters for to(Object ...) and from(Object ...) in favour of the only two allowed input
|
|
arguments (String, Number). Removing setter for center point (point(), geohash()) because parameter
|
|
is mandatory and should already be set in constructor.
|
|
Also removing setters for lt(), lte(), gt(), gte() since they can all be replaced by equivallent
|
|
calls to to/from() and inludeLower()/includeUpper().
|
|
|
|
==== GeoPolygonQueryBuilder
|
|
|
|
Require shell of polygon already to be specified in constructor instead of adding it pointwise.
|
|
This enables validation, but makes it necessary to remove the addPoint() methods.
|
|
|
|
==== MultiMatchQueryBuilder
|
|
|
|
Moving MultiMatchQueryBuilder.ZeroTermsQuery enum to MatchQuery.ZeroTermsQuery.
|
|
Also reusing new Operator enum.
|
|
|
|
Removed ability to pass in boost value using `field(String field)` method in form e.g. `field^2`.
|
|
Use the `field(String, float)` method instead.
|
|
|
|
==== MissingQueryBuilder
|
|
|
|
The MissingQueryBuilder which was deprecated in 2.2.0 is removed. As a replacement use ExistsQueryBuilder
|
|
inside a mustNot() clause. So instead of using `new ExistsQueryBuilder(name)` now use
|
|
`new BoolQueryBuilder().mustNot(new ExistsQueryBuilder(name))`.
|
|
|
|
==== NotQueryBuilder
|
|
|
|
The NotQueryBuilder which was deprecated in 2.1.0 is removed. As a replacement use BoolQueryBuilder
|
|
with added mustNot() clause. So instead of using `new NotQueryBuilder(filter)` now use
|
|
`new BoolQueryBuilder().mustNot(filter)`.
|
|
|
|
==== TermsQueryBuilder
|
|
|
|
Remove the setter for `termsLookup()`, making it only possible to either use a TermsLookup object or
|
|
individual values at construction time. Also moving individual settings for the TermsLookup (lookupIndex,
|
|
lookupType, lookupId, lookupPath) to the separate TermsLookup class, using constructor only and moving
|
|
checks for validation there. Removed `TermsLookupQueryBuilder` in favour of `TermsQueryBuilder`.
|
|
|
|
==== FunctionScoreQueryBuilder
|
|
|
|
`add` methods have been removed, all filters and functions must be provided as constructor arguments by
|
|
creating an array of `FunctionScoreQueryBuilder.FilterFunctionBuilder` objects, containing one element
|
|
for each filter/function pair.
|
|
|
|
`scoreMode` and `boostMode` can only be provided using corresponding enum members instead
|
|
of string values: see `FilterFunctionScoreQuery.ScoreMode` and `CombineFunction`.
|
|
|
|
`CombineFunction.MULT` has been renamed to `MULTIPLY`.
|
|
|
|
==== IdsQueryBuilder
|
|
|
|
For simplicity, only one way of adding the ids to the existing list (empty by default) is left: `addIds(String...)`
|
|
|
|
==== DocumentAlreadyExistsException removed
|
|
|
|
`DocumentAlreadyExistsException` is removed and a `VersionConflictException` is thrown instead (with a better
|
|
error description). This will influence code that use the `IndexRequest.opType()` or `IndexRequest.create()`
|
|
to index a document only if it doesn't already exist.
|
|
|
|
==== ShapeBuilders
|
|
|
|
`InternalLineStringBuilder` is removed in favour of `LineStringBuilder`, `InternalPolygonBuilder` in favour of PolygonBuilder` and `Ring` has been replaced with `LineStringBuilder`. Also the abstract base classes `BaseLineStringBuilder` and `BasePolygonBuilder` haven been merged with their corresponding implementations.
|
|
|
|
==== RescoreBuilder
|
|
|
|
`RecoreBuilder.Rescorer` was merged with `RescoreBuilder`, which now is an abstract superclass. QueryRescoreBuilder currently is its only implementation.
|
|
|
|
==== PhraseSuggestionBuilder
|
|
|
|
The inner DirectCandidateGenerator class has been moved out to its own class called DirectCandidateGeneratorBuilder.
|
|
|
|
[[breaking_30_cache_concurrency]]
|
|
=== Cache concurrency level settings removed
|
|
|
|
Two cache concurrency level settings `indices.requests.cache.concurrency_level` and
|
|
`indices.fielddata.cache.concurrency_level` because they no longer apply to the cache implementation used for the
|
|
request cache and the field data cache.
|
|
|
|
[[breaking_30_non_loopback]]
|
|
=== Remove bind option of `non_loopback`
|
|
|
|
This setting would arbitrarily pick the first interface not marked as loopback. Instead, specify by address
|
|
scope (e.g. `_local_,_site_` for all loopback and private network addresses) or by explicit interface names,
|
|
hostnames, or addresses.
|
|
|
|
[[breaking_30_thread_pool]]
|
|
=== Forbid changing of thread pool types
|
|
|
|
Previously, <<modules-threadpool,thread pool types>> could be dynamically adjusted. The thread pool type effectively
|
|
controls the backing queue for the thread pool and modifying this is an expert setting with minimal practical benefits
|
|
and high risk of being misused. The ability to change the thread pool type for any thread pool has been removed; do note
|
|
that it is still possible to adjust relevant thread pool parameters for each of the thread pools (e.g., depending on
|
|
the thread pool type, `keep_alive`, `queue_size`, etc.).
|
|
|
|
[[breaking_30_cpu_stats]]
|
|
=== System CPU stats
|
|
|
|
The recent CPU usage (as a percent) has been added to the OS stats
|
|
reported under the node stats API and the cat nodes API. The breaking
|
|
change here is that there is a new object in the `os` object in the node
|
|
stats response. This object is called `cpu` and includes "percent" and
|
|
`load_average` as fields. This moves the `load_average` field that was
|
|
previously a top-level field in the `os` object to the `cpu` object. The
|
|
format of the `load_average` field has changed to an object with fields
|
|
`1m`, `5m`, and `15m` representing the one-minute, five-minute and
|
|
fifteen-minute loads respectively. If any of these fields are not present,
|
|
it indicates that the corresponding value is not available.
|
|
|
|
In the cat nodes API response, the `cpu` field is output by default. The
|
|
previous `load` field has been removed and is replaced by `load_1m`,
|
|
`load_5m`, and `load_15m` which represent the one-minute, five-minute
|
|
and fifteen-minute loads respectively. The field will be null if the
|
|
corresponding value is not available.
|
|
|
|
Finally, the API for `org.elasticsearch.monitor.os.OsStats` has
|
|
changed. The `getLoadAverage` method has been removed. The value for
|
|
this can now be obtained from `OsStats.Cpu#getLoadAverage` but it is no
|
|
longer a double and is instead an object encapsulating the one-minute,
|
|
five-minute and fifteen-minute load averages. Additionally, the recent
|
|
CPU usage can be obtained from `OsStats.Cpu#getPercent`.
|
|
|
|
=== Fields option
|
|
Only stored fields are retrievable with this option.
|
|
The fields option won't be able to load non stored fields from _source anymore.
|
|
|
|
[[breaking_30_allocation]]
|
|
=== Primary shard allocation
|
|
|
|
Previously, primary shards were only assigned if a quorum of shard copies were found (configurable using
|
|
`index.recovery.initial_shards`, now deprecated). In case where a primary had only a single replica, quorum was defined
|
|
to be a single shard. This meant that any shard copy of an index with replication factor 1 could become primary, even it
|
|
was a stale copy of the data on disk. This is now fixed by using allocation IDs.
|
|
|
|
Allocation IDs assign unique identifiers to shard copies. This allows the cluster to differentiate between multiple
|
|
copies of the same data and track which shards have been active, so that after a cluster restart, shard copies
|
|
containing only the most recent data can become primaries.
|
|
|
|
=== Indices Shard Stores command
|
|
|
|
By using allocation IDs instead of version numbers to identify shard copies for primary shard allocation, the former versioning scheme
|
|
has become obsolete. This is reflected in the indices-shards-stores.html[Indices Shard Stores API]. A new field `allocation_id` replaces the
|
|
former `version` field in the result of the Indices Shard Stores command. This field is available for all shard copies that have been either
|
|
created with the current version of Elasticsearch or have been active in a cluster running a current version of Elasticsearch. For legacy
|
|
shard copies that have not been active in a current version of Elasticsearch, a `legacy_version` field is available instead (equivalent to
|
|
the former `version` field).
|
|
|
|
=== Reroute commands
|
|
|
|
The reroute command `allocate` has been split into two distinct commands `allocate_replica` and `allocate_empty_primary`.
|
|
This was done as we introduced a new `allocate_stale_primary` command. The new `allocate_replica` command corresponds to the
|
|
old `allocate` command with `allow_primary` set to false. The new `allocate_empty_primary` command corresponds to the old
|
|
`allocate` command with `allow_primary` set to true.
|
|
|
|
==== `index.shared_filesystem.recover_on_any_node` changes
|
|
|
|
The behavior of `index.shared_filesystem.recover_on_any_node = true` has been changed. Previously, in the case where no
|
|
shard copies could be found, an arbitrary node was chosen by potentially ignoring allocation deciders. Now, we take
|
|
balancing into account but don't assign the shard if the allocation deciders are not satisfied. The behavior has also changed
|
|
in the case where shard copies can be found. Previously, a node not holding the shard copy was chosen if none of the nodes
|
|
holding shard copies were satisfying the allocation deciders. Now, the shard will be assigned to a node having a shard copy,
|
|
even if none of the nodes holding a shard copy satisfy the allocation deciders.
|
|
|
|
[[breaking_30_percolator]]
|
|
=== Percolator
|
|
|
|
Adding percolator queries and modifications to existing percolator queries are no longer visible in immediately
|
|
to the percolator. A refresh is required to run before the changes are visible to the percolator.
|
|
|
|
The reason that this has changed is that on newly created indices the percolator automatically indexes the query terms
|
|
and these query terms are used at percolate time to reduce the amount of queries the percolate API needs evaluate.
|
|
This optimization didn't work in the percolate API mode where modifications to queries are immediately visible.
|
|
|
|
The percolator by defaults sets the `size` option to `10` whereas before this was set to unlimited.
|
|
|
|
The percolate api can no longer accept documents that have fields that don't exist in the mapping.
|
|
|
|
When percolating an existing document then specifying a document in the source of the percolate request is not allowed
|
|
any more.
|
|
|
|
The percolate api no longer modifies the mappings. Before the percolate api could be used to dynamically introduce new
|
|
fields to the mappings based on the fields in the document being percolated. This no longer works, because these
|
|
unmapped fields are not persisted in the mapping.
|
|
|
|
Percolator documents are no longer excluded from the search response.
|
|
|
|
[[breaking_30_packaging]]
|
|
=== Packaging
|
|
|
|
==== Default logging using systemd (since Elasticsearch 2.2.0)
|
|
|
|
In previous versions of Elasticsearch, the default logging
|
|
configuration routed standard output to /dev/null and standard error to
|
|
the journal. However, there are often critical error messages at
|
|
startup that are logged to standard output rather than standard error
|
|
and these error messages would be lost to the nether. The default has
|
|
changed to now route standard output to the journal and standard error
|
|
to inherit this setting (these are the defaults for systemd). These
|
|
settings can be modified by editing the elasticsearch.service file.
|
|
|
|
[[breaking_30_scripting]]
|
|
=== Scripting
|
|
|
|
==== Script mode settings
|
|
|
|
Previously script mode settings (e.g., "script.inline: true",
|
|
"script.engine.groovy.inline.aggs: false", etc.) accepted the values
|
|
`on`, `true`, `1`, and `yes` for enabling a scripting mode, and the
|
|
values `off`, `false`, `0`, and `no` for disabling a scripting mode.
|
|
The variants `on`, `1`, and `yes ` for enabling and `off`, `0`,
|
|
and `no` for disabling are no longer supported.
|
|
|
|
[[breaking_30_term_vectors]]
|
|
=== Term vectors
|
|
|
|
The term vectors APIs no longer persist unmapped fields in the mappings.
|
|
|
|
The `dfs` parameter has been removed completely, term vectors don't support
|
|
distributed document frequencies anymore.
|