[CI] CrossClustersCancellationIT testTasks failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #6175 / rhel-7_platform-support-unix
• elasticsearch-periodic #6186 / graalvm-ce17_checkpart3_java-matrix

Reproduction Line:

./gradlew ":x-pack:plugin:esql:internalClusterTest" --tests "org.elasticsearch.xpack.esql.action.CrossClustersCancellationIT.testCloseSkipUnavailable" -Dtests.seed=972247CF7B1331D7 -Dtests.locale=ml-IN -Dtests.timezone=CST -Druntime.java=23

Applicable branches:
8.x

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Node didn't close within 10 seconds.

Issue Reasons:

• [8.x] 2 failures in test testTasks (1.4% fail rate in 148 executions)

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

[elasticsearchmachine]

This has been muted on branch main

Mute Reasons:

• [main] 2 failures in test testTasks (0.3% fail rate in 636 executions)

Build Scans:

• elasticsearch-periodic-platform-support #6170 / ubuntu-2404-aarch64_checkpart3_platform-support-arm
• elasticsearch-pull-request #54172 / part-3

[elasticsearchmachine]

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

[smalyshev]

Have this in the log:

[2025-02-04T01:13:24,112][WARN ][i.n.c.AbstractChannelHandlerContext] [main-cluster-2] An exception '[!!!java.lang.OutOfMemoryError@55edb38d=>java.lang.OutOfMemoryError:Java heap space!!!]' [enable DEBUG level for full stacktrace] was thrown by a user handler's exceptionCaught() method while handling the following exception:

that may be the reason for trouble.