[jira] Issue Comment Edited: (JCR-1979) Deadlock on concurrent read & transactional write operations

["Przemo Pakulski (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JCR-1979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12673249#action_12673249 ] 

ppakulski edited comment on JCR-1979 at 2/13/09 5:38 AM:
---------------------------------------------------------------

Thread "http-8080-10" is executing readOnly operation, have acquired ReadLock for workspace and is waiting on ReadLock for version storage.

Thread "http-8080-18" is commiting transaction, have acquired WriteLock for version storage already and waiting on WriteLock for workspace.

      was (Author: ppakulski):
    Thread "http-8080-10" is executing readOnly operation, have acquired ReadLock for workspace and is waiting on ReadLock for version storage.

Thread http-8080-18 is commiting transaction, have acquired WriteLock for version storage already and waiting on WriteLock for workspace.
  
> Deadlock  on concurrent read & transactional write operations
> -------------------------------------------------------------
>
>                 Key: JCR-1979
>                 URL: https://issues.apache.org/jira/browse/JCR-1979
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 1.5.0
>            Reporter: Przemo Pakulski
>
> Isuue has been introduced by resolving JCR-1755 (Transaction-safe versioning). This fixed changed sequence of commits, but at the same time order of acquiring locks has been disturbed.

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