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Posted to yarn-dev@hadoop.apache.org by "Chandni Singh (JIRA)" <ji...@apache.org> on 2018/12/04 19:23:00 UTC
[jira] [Created] (YARN-9082) Delay during unregistering metrics is
unnecessary
Chandni Singh created YARN-9082:
-----------------------------------
Summary: Delay during unregistering metrics is unnecessary
Key: YARN-9082
URL: https://issues.apache.org/jira/browse/YARN-9082
Project: Hadoop YARN
Issue Type: Bug
Reporter: Chandni Singh
Assignee: Chandni Singh
Discovered while debugging YARN-9071
Quoting [~billie.rinaldi]
{quote}
I looked at YARN-3619, where the unregistration delay was added. It seems like this was added because unregistration was performed in getMetrics, which was causing a ConcurrentModificationException. However, unregistration was moved from getMetrics into the finished method (in the same patch), and this leads me to believe that the delay is never needed. I'm inclined to think we should remove the delay entirely, but would like to hear other opinions.
{quote}
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