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PROBLEM:

After moving the Zookeeper servers and setting correctly in the yarn configs, Resource managers come up but are in standby state.

Even after removing the znode - rmstore, none of the nodes transition to active.

ROOT CAUSE:

Zookeeper data is stored in znode yarn-leader-election. This is used for RM leader election. This znode has stale data about zookeeper leader.

RESOLUTION:

1. Login into zkcli

2. rmr /yarn-leader-election

3. Restart Resource managers.

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Last update:
‎02-05-2020 12:20 AM
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