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Jason Lowe updated YARN-2972: ----------------------------- Attachment: YARN-2972.001.patch Patch to use the configured number of threads as the core pool size. > DelegationTokenRenewer thread pool never expands > ------------------------------------------------ > > Key: YARN-2972 > URL: https://issues.apache.org/jira/browse/YARN-2972 > Project: Hadoop YARN > Issue Type: Bug > Components: resourcemanager > Affects Versions: 2.3.0 > Reporter: Jason Lowe > Assignee: Jason Lowe > Attachments: YARN-2972.001.patch > > > DelegationTokenRenewer uses a thread pool to manage token renewals. The > number of threads is configurable, but unfortunately the pool never expands > beyond the hardcoded initial 5 threads because we are using an unbounded > LinkedBlockingQueue. ThreadPoolExecutor only grows the thread pool beyond > the core size when the specified queue is full. -- This message was sent by Atlassian JIRA (v6.3.4#6332)