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From daemeon reiydelle <daeme...@gmail.com>
Subject Re: After cluster rolling reboot, nodemanager could not authenticate to resource manager
Date Wed, 28 Jan 2015 02:35:05 GMT
Check your ip addresses and host names of the RM (could be an issue around
which interface the nodes are now using?)



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On Tue, Jan 27, 2015 at 6:06 PM, Manoj Samel <manojsameltech@gmail.com>
wrote:

> Environment is Hadoop 2.3.0, CDH 5.0,  RM and NN in HA, Kerberos Security
>
> Rolling reboot of cluster was done. Services on each node was not stopped
> before, the machines were just shut down, rebooted and services started on
> each after reboot. Nodes were shut down in rolling manner such that one RM,
> NN etc. were available at all times.
>
> After restart, all services came up but node managers failed to connect to
> Resource managers with "invalid Yarn Credentials". Kerberos keytabs etc.
> are valid. The Resource managers services had to be restarted again for
> node managers to connect successfully.
>
> Thoughts?
>
> Thanks,
>
>
>
>

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