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https://issues.apache.org/jira/browse/YARN-2952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli updated YARN-2952:
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Fix Version/s: 2.6.1
Pulled this into 2.6.1. Ran compilation and the tests TestFSRMStateStore,
TestZKRMStateStore before the push. Patch applied cleanly.
> Incorrect version check in RMStateStore
> ---------------------------------------
>
> Key: YARN-2952
> URL: https://issues.apache.org/jira/browse/YARN-2952
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jian He
> Assignee: Rohith Sharma K S
> Labels: 2.6.1-candidate
> Fix For: 2.7.0, 2.6.1
>
> Attachments: 0001-YARN-2952.patch
>
>
> In RMStateStore#checkVersion: if we modify tCURRENT_VERSION_INFO to 2.0,
> it'll still store the version as 1.0 which is incorrect; The same thing might
> happen to NM store, timeline store.
> {code}
> // if there is no version info, treat it as 1.0;
> if (loadedVersion == null) {
> loadedVersion = Version.newInstance(1, 0);
> }
> if (loadedVersion.isCompatibleTo(getCurrentVersion())) {
> LOG.info("Storing RM state version info " + getCurrentVersion());
> storeVersion();
> {code}
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