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https://issues.apache.org/jira/browse/VCL-846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15453303#comment-15453303
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ASF subversion and git services commented on VCL-846:
-----------------------------------------------------
Commit 1758683 from [~jfthomps] in branch 'vcl/trunk'
[ https://svn.apache.org/r1758683 ]
VCL-846 - Improve flow of handling nodes for deleted reservations assigned to
new reservations
utils.php:
-modified isAvailable: changed set of ignored states when getting a list of
computers for an immediate (now) reservation from
'reloading,reload,timeout,inuse' to 'timeout,inuse'; changed set of states for
determing reserved computers from 'deleted,failed,complete' to
'failed,complete,reload,pending/reload'
-modified getSemaphore: changed set of states checked to see if another process
allocated the same computer from '1,5,12' to '5,12,19,14/19'
> Improve flow of handling nodes for deleted reservations assigned to new
> reservations
> ------------------------------------------------------------------------------------
>
> Key: VCL-846
> URL: https://issues.apache.org/jira/browse/VCL-846
> Project: VCL
> Issue Type: Bug
> Components: vcld (backend), web gui (frontend)
> Reporter: Aaron Peeler
> Assignee: Josh Thompson
> Fix For: 2.5
>
>
> As a user can make a new reservation, the front-end can assign a node that is
> currently being cleaned up from a deleted reservation. So far the states
> observed are:
> currentstate = pending
> laststate = deleted
> node state = reserved
> If this node is assigned to a new reservation, the back end checks for
> existing process, logs it and fails the new reservation. It fails it likely
> because the new process on the backend does not know how much time is left to
> clean up the deleted reservation.
> A decision/implementation on synchronizing the front-end and back-end needs
> to be made on how to handle this case as to not have reservation failures.
> Suggestions are to:
> 1) only select available machines not assigned to reservations on the front
> end.
> 2) Or on the backend - wait until the previous deleted process is complete(
> which could take a while depending on what can be done)
> 3) on the backend - intercept the process and force a reload - not matter
> what the image is.
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