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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2018/06/13 16:01:20 UTC

[GitHub] ivankelly opened a new pull request #1961: Remove potential deadlock in offloading

ivankelly opened a new pull request #1961: Remove potential deadlock in offloading
URL: https://github.com/apache/incubator-pulsar/pull/1961
 
 
   Managed ledger has a lock, ledgersListMutex, to control write access
   to the list of ledgers that form the managed ledger.
   
   Normally this lock is locked in a non-blocking way (if it fails it
   backs off and tries again). Offloading added some operations that
   locked in a blocking manner, which can cause some deadlocking, if
   operations are running on the orderedexecutor.
   
   This patch changes the offloading operations to only use tryLock on
   this lock.
   
   Master Issue: #1511
   

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