[JBoss JIRA] (ISPN-2602) Busy wait in BaseStateTransferManagerImpl#waitForStateTransferToStart
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[
https://issues.jboss.org/browse/ISPN-2602?page=com.atlassian.jira.plugin....
]
Dan Berindei resolved ISPN-2602.
--------------------------------
Fix Version/s: 5.2.0.Final
(was: 6.0.0.Final)
Resolution: Out of Date
The new state transfer in 5.2 doesn't use this busy wait loop any more - instead it
uses a CountDownLatch.
Busy wait in
BaseStateTransferManagerImpl#waitForStateTransferToStart
---------------------------------------------------------------------
Key: ISPN-2602
URL: https://issues.jboss.org/browse/ISPN-2602
Project: Infinispan
Issue Type: Bug
Components: State transfer
Affects Versions: 5.1.4.FINAL
Reporter: Dennis Reed
Assignee: Mircea Markus
Priority: Minor
Fix For: 5.2.0.Final
BaseStateTransferManagerImpl#waitForStateTransferToStart does a busy wait, sleeping for
10ms in between checking the condition, instead of synchronizing using condition variables
(or the equivalent).
This can cause excessive CPU load if a lot of threads are waiting
(we have seen 300 threads waiting in this loop at once).
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Dan Berindei (JIRA)