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Posted to issues@bookkeeper.apache.org by GitBox <gi...@apache.org> on 2018/03/14 16:27:10 UTC

[GitHub] merlimat opened a new pull request #1258: Allow to send callbacks from journal thread

merlimat opened a new pull request #1258: Allow to send callbacks from journal thread
URL: https://github.com/apache/bookkeeper/pull/1258
 
 
   In BK 4.3 it was possible to configure 0 threads for the dispatching of journal callback threads. 
   
   There might be good reasons to not use a thread pool when dispatching the callback threads: 
    * Avoiding one more context switch 
    * Avoiding contention on the executor enqueuing
    * When using multiple journals, the journal thread is not a bottleneck anymore
   
   We should allow the same convention (threads=0 means direct execution) that we have in other places.

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