Elasticsearch version 8.4.2
editElasticsearch version 8.4.2
editAlso see Breaking changes in 8.4.
Known issues
edit-
This version contains a regression in
multi_match
queries that use thecross_fields
scoring type. ElasticsearchWhen running a
multi_match
query with thecross_fields
type, Elasticsearch can sometimes throw an IllegalArgument exception with the message "totalTermFreq must be at least docFreq". If you use thecross_fields
scoring type, it is recommended that you skip version 8.4.2. This regression was fixed in version 8.4.3. - When using date range search with format that does not have all date fields (missing month or day) an incorrectly parsed date could be used. The workaround is to use date pattern with all date fields (year, month, day) (issue: #90187)
-
Machine learning datafeeds cannot be listed if any are not modified since version 6.x
If you have a datafeed that was created in version 5.x or 6.x and has not been updated since 7.0, it is not possible to list datafeeds in 8.4 and 8.5. This means that anomaly detection jobs cannot be managed using Kibana. This issue is fixed in 8.6.0.
If you upgrade to 8.4 or 8.5 with such a datafeed, you need to work around the problem by updating each datafeed’s authorization information using these steps.
-
Orchestrators which use a
settings.json
file to configure Elasticsearch may encounter deadlocks during master elections (issue: #92812)To resolve the deadlock, remove the
settings.json
file and restart the affected node. -
Parsing a request when the last element in an array is filtered out
(for instance using
_source_includes
) fails. This is due to a bug in Jackson parser. Fixed in Elasticsearch 8.6.1 (#91456)
Bug fixes
edit- Allocation
-
-
Fix debug mode in
MaxRetryAllocationDecider
#89973
-
Fix debug mode in
- Authentication
-
-
Fix double sending of response in
TransportOpenIdConnectPrepareAuthenticationAction
#89930
-
Fix double sending of response in
- Autoscaling
- Health
- ILM+SLM
- Infra/Core
- Ingest Node
-
-
Fix pipeline
id
not present in ingest metadata insideon_failure
block #89632
-
Fix pipeline
- Machine Learning
- Network
-
-
Fix memory leak when double invoking
RestChannel.sendResponse
#89873
-
Fix memory leak when double invoking
- Ranking
- Rollup
-
-
Fork
TransportRollupCapsAction
to MANAGEMENT POOL #89803
-
Fork
- Search
- Transform