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https://issues.apache.org/jira/browse/CLOUDSTACK-6743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14223280#comment-14223280
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ASF subversion and git services commented on CLOUDSTACK-6743:
-------------------------------------------------------------
Commit 2aa9bb6896c51733dc8a321888e1e1cba566e618 in cloudstack's branch
refs/heads/4.3 from [~kelveny]
[ https://git-wip-us.apache.org/repos/asf?p=cloudstack.git;h=2aa9bb6 ]
CLOUDSTACK-6743: Use edge-triggering in MessageDetector to handle bogus wakeup
gracefully. Level triggering plus bogus wakeup can cause a tight loop to spin
(cherry picked from commit 09ec127470febacb45df1e0323a7bd7e7343bd2e)
Signed-off-by: Rohit Yadav <[email protected]>
Conflicts:
framework/ipc/src/org/apache/cloudstack/framework/messagebus/MessageDetector.java
framework/ipc/test/org/apache/cloudstack/messagebus/TestMessageBus.java
> Race condition situation in MessageDetector may cause a outer tight loop to
> spin
> --------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-6743
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6743
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: 4.3.0, 4.4.0
> Reporter: Kelven Yang
> Assignee: Kelven Yang
> Priority: Critical
> Fix For: 4.4.0
>
>
> MessageDetector current uses level-triggering to wait for messages from
> message bus, a bogus wakeup may cause outside loop to become spinning.
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