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https://issues.apache.org/jira/browse/WAVE-372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13460339#comment-13460339
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Vicente J. Ruiz Jurado commented on WAVE-372:
---------------------------------------------
Same code:
$ git checkout trunk
Switched to branch 'trunk'
$ md5sum src/org/waveprotocol/box/server/frontend/UserManager.java
5c93baa4cb8898ce1ab75bfbdee651ae
src/org/waveprotocol/box/server/frontend/UserManager.java
$ git checkout kune
Switched to branch 'kune'
$ md5sum src/org/waveprotocol/box/server/frontend/UserManager.java
5c93baa4cb8898ce1ab75bfbdee651ae
src/org/waveprotocol/box/server/frontend/UserManager.java
> Deadlock in UserManager
> -----------------------
>
> Key: WAVE-372
> URL: https://issues.apache.org/jira/browse/WAVE-372
> Project: Wave
> Issue Type: Bug
> Reporter: Vicente J. Ruiz Jurado
> Priority: Critical
> Attachments: deadlock-updatemanager.txt
>
>
> We are experiencing deadlocks from time to time in our servers.
> We have found a cause: the syncronization in UserManager.
> Attached a stack trace.
> Doing a fast look into this bug: UserManager.onUpdate needs to be syncronized?
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