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https://issues.apache.org/jira/browse/CLOUDSTACK-7884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14206648#comment-14206648
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Min Chen commented on CLOUDSTACK-7884:
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Problem:
-------------------------
Management server is not responding intermittently after restart.
RCA:
-------------------------
The management server was not responding because it was not started fully and
was not ready to take any requests.
See the comments above for full analysis
Fix:
-----------------------
During Management server startup Lifecycle Handler Manager start all lifecycle
handles one by one sequentially in a random order based on RUN LEVELs of the
Lifecycle Handler.
Id VirtualMachineManager Lifecycle Handler starts before AsyncJobManager
lifecycle Handler and if there are any pending jobs to be processed then the
main thread will wait till it finishes the scheduled job, but this job will
never executed as asyncjob manager lifecycle handler did not start.
Changed the RUN LEVEL of AsyncjobManager to make sure it gets initialised
before Virtual manager life cycle handler so that there is a queue to finish
the scheduled job.
Notest to QA:
---------------------
Make sure there are some pending virtual machine jobs before restart of the
management server to test this.
> Cloudstack MS is not responding (happening randomly) after some restart
> -----------------------------------------------------------------------
>
> Key: CLOUDSTACK-7884
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-7884
> 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
> Reporter: Min Chen
> Assignee: Min Chen
> Priority: Critical
> Fix For: 4.5.0
>
>
> some times after the restarting the MS ,not able to see the web UI login page
> (i.e not getting the response from MS when we open http://<host>:8080/client
> Page) even though MS is up and running.
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