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https://issues.apache.org/jira/browse/YARN-8151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Íñigo Goiri updated YARN-8151:
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Description: Right now RM Epoch values in sub clusters are seeded in
different ranges: 0, 1000, 2000, etc. If one RM restarts enough its epoch can
increment until it clashes with a neighboring sub cluster. E.g. 999 -> 1000. To
fix this, we introduce a configurable range by which the epoch generation is
bound. (was: {color:#333333}Right now RM Epoch values in sub clusters are
seeded in different ranges: 0, 1000, 2000, etc. If one RM restarts enough its
epoch can increment until it clashes with a neighboring sub cluster. E.g. 999
-> 1000. To fix this, we introduce a configurable range by which the epoch
generation is bound.{color})
> Yarn RM Epoch should wrap around
> --------------------------------
>
> Key: YARN-8151
> URL: https://issues.apache.org/jira/browse/YARN-8151
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Young Chen
> Assignee: Young Chen
> Priority: Major
> Attachments: YARN-8151.01.patch, YARN-8151.01.patch,
> YARN-8151.02.patch, YARN-8151.03.patch, YARN-8151.04.patch
>
>
> Right now RM Epoch values in sub clusters are seeded in different ranges: 0,
> 1000, 2000, etc. If one RM restarts enough its epoch can increment until it
> clashes with a neighboring sub cluster. E.g. 999 -> 1000. To fix this, we
> introduce a configurable range by which the epoch generation is bound.
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