[CI] AsyncSearchActionIT class failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #6683 / oraclelinux-8_platform-support-unix
• elasticsearch-periodic #6570 / openjdk17_checkpart2_java-matrix

Reproduction Line:

./gradlew ":x-pack:plugin:async-search:internalClusterTest" --tests "org.elasticsearch.xpack.search.AsyncSearchActionIT.testRestartAfterCompletion" -Dtests.seed=7F1DA010D8467EB6 -Dtests.locale=vai -Dtests.timezone=America/St_Thomas -Druntime.java=23

Applicable branches:
8.17

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: There are still [1] in-flight contexts. The first one's creation site is listed as the cause of this exception.

Issue Reasons:

• [8.17] 2 failures in class org.elasticsearch.xpack.search.AsyncSearchActionIT (0.3% fail rate in 599 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-search (Team:Search)

[elasticsearchmachine]

Pinging @elastic/es-search-foundations (Team:Search Foundations)