Handle exceptions when register compute group

[dnhatn]

  java.lang.AssertionError: org.elasticsearch.tasks.TaskCancelledException: task cancelled before starting [cancelled on failure]
        at __randomizedtesting.SeedInfo.seed([842AF61A97BFEAAA]:0)
        at org.elasticsearch.action.ActionListenerImplementations.expectNoException(ActionListenerImplementations.java:157)
        at org.elasticsearch.action.ActionListenerImplementations$DelegatingFailureActionListener.onResponse(ActionListenerImplementations.java:221)
        at org.elasticsearch.action.ActionListenerImplementations$MappedActionListener.onResponse(ActionListenerImplementations.java:97)
        at org.elasticsearch.action.ActionListenerResponseHandler.handleResponse(ActionListenerResponseHandler.java:49)
        at org.elasticsearch.transport.TransportService$ContextRestoreResponseHandler.handleResponse(TransportService.java:1499)
        at org.elasticsearch.transport.InboundHandler.doHandleResponse(InboundHandler.java:434)
        at org.elasticsearch.transport.InboundHandler$2.doRun(InboundHandler.java:391)
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:27)
        at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:34)
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:1044)
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:27)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
        at java.base/java.lang.Thread.run(Thread.java:1575)

        Caused by:
        org.elasticsearch.tasks.TaskCancelledException: task cancelled before starting [cancelled on failure]
            at app//org.elasticsearch.tasks.TaskManager.registerCancellableTask(TaskManager.java:245)
            at app//org.elasticsearch.tasks.TaskManager.register(TaskManager.java:152)
            at app//org.elasticsearch.tasks.TaskManager.register(TaskManager.java:118)
            at app//org.elasticsearch.xpack.esql.plugin.ComputeService.createGroupTask(ComputeService.java:436)
            at app//org.elasticsearch.xpack.esql.plugin.ClusterComputeHandler.lambda$startComputeOnRemoteCluster$6(ClusterComputeHandler.java:112)
            at app//org.elasticsearch.action.ActionListenerImplementations$DelegatingFailureActionListener.onResponse(ActionListenerImplementations.java:219)
            ... 12 more

If the parent task is canceled, registering the compute group task might throw a TaskCancelledException, so the listener won't be notified.

Closes #123216
Closes #123101
Closes #123451

[elasticsearchmachine]

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

[smalyshev]

Isn't TaskCancelledException a runtime exception? So making it checked here doesn't do much except documenting the fact it may be thrown, am I missing something?

[dnhatn]

Yes, that's correct.

[dnhatn]

Thanks everyone!

[elasticsearchmachine]

💚 Backport successful

Status	Branch	Result
✅	8.x