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https://issues.apache.org/jira/browse/STORM-3110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated STORM-3110:
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Labels: pull-request-available (was: )
> Supervisor does not kill all worker processes in secure mode in case of user
> mismatch
> -------------------------------------------------------------------------------------
>
> Key: STORM-3110
> URL: https://issues.apache.org/jira/browse/STORM-3110
> Project: Apache Storm
> Issue Type: Improvement
> Reporter: Arun Mahadevan
> Assignee: Arun Mahadevan
> Priority: Major
> Labels: pull-request-available
>
> While running in secure mode, supervisor sets the worker user (in workers
> local state) as the user that launched the topology.
>
> {code:java}
> SET worker-user 4d67a6be-4c80-4622-96af-f94706d58553 foo
> {code}
>
> However the OS process does not actually run as the user (e.g hrt_qa) unless
> "supervisor.run.worker.as.user" is also set.
>
> if the supervisor's assignment changes, the supervisor in some cases checks
> if all processes are dead by matching the "pid+user" name. Here if the worker
> is running as a different user (say storm) the supervisor wrongly assumes
> that the worker process is dead.
>
> Later when supervisor tries to launch a worker at that same port, it throws a
> bind exception
>
> o.a.s.m.n.Server main [INFO] Create Netty Server Netty-server-localhost-6700,
> buffer_size: 5242880, maxWorkers: 1
> o.a.s.d.worker main [ERROR] Error on initialization of server mk-worker
> org.apache.storm.shade.org.jboss.netty.channel.ChannelException: Failed to
> bind to: 0.0.0.0/0.0.0.0:6700
> at
> org.apache.storm.shade.org.jboss.netty.bootstrap.ServerBootstrap.bind(ServerBootstrap.java:272)
> ~[storm-core-1.2.0.3.1.0.0-501.jar:1.2.0.3.1.0.0-501]
>
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