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Wilfred Spiegelenburg commented on YARN-8865: --------------------------------------------- Fix for the check style issue I introduced. The test failure is caused by the hashcode change as was explained in YARN-5092. I will file a follow up jira to fix the check. > RMStateStore contains large number of expired RMDelegationToken > --------------------------------------------------------------- > > Key: YARN-8865 > URL: https://issues.apache.org/jira/browse/YARN-8865 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager > Affects Versions: 3.1.0 > Reporter: Wilfred Spiegelenburg > Assignee: Wilfred Spiegelenburg > Priority: Major > Attachments: YARN-8865.001.patch, YARN-8865.002.patch, > YARN-8865.003.patch, YARN-8865.004.patch > > > When the RM state store is restored expired delegation tokens are restored > and added to the system. These expired tokens do not get cleaned up or > removed. The exact reason why the tokens are still in the store is not clear. > We have seen as many as 250,000 tokens in the store some of which were 2 > years old. > This has two side effects: > * for the zookeeper store this leads to a jute buffer exhaustion issue and > prevents the RM from becoming active. > * restore takes longer than needed and heap usage is higher than it should be > We should not restore already expired tokens since they cannot be renewed or > used. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org