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Oozie > HiveActionExecutor > LauncherMapper died, check Hadoop LOG for job

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Oozie > HiveActionExecutor > LauncherMapper died, check Hadoop LOG for job

An oozie sub-workflow is failing with message as "LauncherMapper died, check Hadoop LOG for job"

On subsequent attempt, the workflow completes successfully.

Various oozie jobs are failing randomly at any sub-workflow and work fine on subsequent attempt.

I tried checking hadoop logs but when the failure happens there are no mapred or yarn logs for that job/application.

Any hints are highly appreciated.

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Re: Oozie > HiveActionExecutor > LauncherMapper died, check Hadoop LOG for job

Expert Contributor

Restart yarn & oozie services and then try to run your oozie workflow again. I had a similar situation and I tried many things, in the end the restart solved the problem for me.

4 REPLIES 4

Re: Oozie > HiveActionExecutor > LauncherMapper died, check Hadoop LOG for job

Mentor

Please check whether failures only occur on the exact same node? Also can you drill down into the yarn job logs and see what error you get?

Re: Oozie > HiveActionExecutor > LauncherMapper died, check Hadoop LOG for job

@Artem Ervits - different workflows failed on different nodes, however, their re-attempt were on the same node as their first attempt.

also the yarn logs do not exist for the failed/killed ones, i mean, i tried > yarn logs -applicationId <failedAppId> but it said the logs do not exist.

In order to verify the command i tried to get logs for a successful one and was able to get logs.

Thank you.

Highlighted

Re: Oozie > HiveActionExecutor > LauncherMapper died, check Hadoop LOG for job

Expert Contributor

Restart yarn & oozie services and then try to run your oozie workflow again. I had a similar situation and I tried many things, in the end the restart solved the problem for me.

Re: Oozie > HiveActionExecutor > LauncherMapper died, check Hadoop LOG for job

It is weird but a restart indeed solved the issue. Wondering what the root cause could be. If you have any luck arriving at the root cause, please share here in future. :)

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