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https://issues.apache.org/jira/browse/CLOUDSTACK-6743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14005371#comment-14005371
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Kelven Yang commented on CLOUDSTACK-6743:
-----------------------------------------
commit e3bb8b98bd9055115004da2ec67b29271a3974c5
Author: Kelven Yang <[email protected]>
Date: Wed May 21 16:14:14 2014 -0700
CLOUDSTACK-5485: Use edge-triggering in MessageDetector to handle bogus
wakeup gracefully. Level triggering plus bogus wakeup can cause a tight loop to
spin
> 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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