[CI] FieldExtractorIT class failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #8308 / openjdk17_8.16.7_java-matrix-bwc
• elasticsearch-periodic #8290 / openjdk17_8.16.7_java-fips-matrix-bwc

Reproduction Line:

undefined

Applicable branches:
8.17

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

undefined

Issue Reasons:

• [8.17] 2 failures in class org.elasticsearch.xpack.esql.qa.mixed.FieldExtractorIT (6.3% fail rate in 32 executions)
• [8.17] 2 failures in pipeline elasticsearch-periodic (50.0% fail rate in 4 executions)

Note:
This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)

[craigtaverner]

Trying to reproduce part of this with:

./gradlew ":x-pack:plugin:esql:qa:server:mixed-cluster:v9.0.2#javaRestTest" -Dtests.class="org.elasticsearch.xpack.esql.qa.mixed.FieldExtractorIT" -Dtests.seed=CA09F62D3D6C699C -Dtests.bwc=true -Dtests.locale=en -Dtests.timezone=Etc/UTC -Druntime.java=21 -Dtests.fips.enabled=true

[craigtaverner]

That took a long time to run, but did finish successfully (16min40sec). Could this be a valid timeout issue in CI?

[craigtaverner]

This looks very much like the issue at #127667, which involved transport version incompatibility between 8.19 and main. Perhaps this new issue is similar, but between 9.0 and main? I'll assign to the same team and people as #127667.