textproc/elasticsearch7: Update to version 7.9.1

Changelog:

• Breaking changes:
  • Indices changes:
    • Elasticsearch includes built-in index templates for logs-*-* and metrics-*-*.
  • Script cache changes:
    • The script.cache.max_size setting is deprecated.
    • The script.cache.expire setting is deprecated.
    • The script.max_compilations_rate setting is deprecated.
    • Mapping actions have been deprecated for the create_doc, create, index and write privileges.
  • Settings changes:
    • Automatically importing dangling indices is disabled by default.

• New features:
  • Search
    • QL: Wildcard field type support
• Enhancements:
  • CRUD:
    • Log more information when mappings fail on index creation
  • EQL:
    • Make endsWith function use a wildcard ES query wherever possible
    • Make stringContains function use a wildcard ES query wherever possible
  • Features/Stats
    • Change severity of negative stats messages from WARN to DEBUG
  • Search
    • Fix handling of alias filter in SearchService
    • QL: Add filtering Query DSL support to IndexResolver
  • Snapshot/Restore
    • Do not access snapshot repo on dedicated voting-only master node
• Bug fixesedit
  • • Authentication
      • Call ActionListener.onResponse exactly once
    • Authorization
      • Relax the index access control check for scroll searches
    • CCR Relax ShardFollowTasksExecutor validation Set timeout of auto put-follow request to unbounded Set timeout of master node requests on follower to unbounded
    • Cluster Coordination
      • Restrict testing of legacy discovery to tests
    • EQL
      • Return sequence join keys in the original type
    • Features/Data streams
      • "no such index [null]" when indexing into data stream with op_type=index [ISSUE]
      • Data streams: throw ResourceAlreadyExists exception
      • Track backing indices in data streams stats from cluster state
    • Features/ILM+SLM
      • Fix race in SLM master/cluster state listeners
    • Features/Ingest
      • Fix handling of final pipelines when destination is changed
      • Fix wrong pipeline name in debug log
      • Fix wrong result when executing bulk requests with and without pipeline
      • Update regex file for es user agent node processor
    • IdentityProvider
      • Only call listener once (SP template registration)
    • Machine Learning
      • Always write prediction_probability and prediction_score for classification inference
      • Get data frame analytics stats API can return multiple responses if more than one error
      • Ensure .ml-config index is updated before clearing anomaly job’s finished_time
      • Ensure annotations index mappings are up to date
      • Handle node closed exception in ML result processing
      • Recover data frame extraction search from latest sort key
    • SQL
  • Fix NPE on ambiguous GROUP BY
  • Fix SYS COLUMNS schema in ODBC mode
    • Search
  • Disable sort optimization on search collapsing
  • Search fix: query_string regex searches not working on wildcard fields
    • Snapshot/Restore
  • Cleanly Handle S3 SDK Exceptions in Request Counting
  • Fix Concurrent Snapshot Create+Delete + Delete Index
• Upgrades:
  • • Infra/Core
  • Upgrade to Lucene 8.6.2

PR: 249106
Submitted by: Juraj Lutter <juraj@lutter.sk>