[jira] [Created] (OOZIE-1886) Queue operation talking longer time

["Shwetha G S (JIRA)" <ji...@apache.org>]

Shwetha G S created OOZIE-1886:
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             Summary: Queue operation talking longer time
                 Key: OOZIE-1886
                 URL: https://issues.apache.org/jira/browse/OOZIE-1886
             Project: Oozie
          Issue Type: Bug
            Reporter: Shwetha G S
            Assignee: Shwetha G S


Purshotam Shah added a comment - 24/May/14 00:36
We noticed that this fix is causing congestion. Queue operation were talking longer time than expected.
There are two lock being used for queuing commands, which is causing delay.
First, all queue command function of CallableQueueService is synchronized.

Second, add function of PriorityDelayQueue need to acquire ReentrantLock
lock, which was added as part of this patch.

Acquiring two lock for queueing a single command was slowing down the system.
Server was taking more than 4 sec, just to queue a command.
After we rollback this patch and server was back to normal.



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