You are viewing a plain text version of this content. The canonical link for it is here.

Posted to commits@druid.apache.org by GitBox <gi...@apache.org> on 2019/06/06 12:40:55 UTC

[GitHub] [incubator-druid] sanastas commented on issue #5698: Oak: New Concurrent Key-Value Map

sanastas commented on issue #5698: Oak: New Concurrent Key-Value Map 
URL: https://github.com/apache/incubator-druid/issues/5698#issuecomment-499476854
 
 
   While measuring the Oak performance we have found IncrementalIndex module doesn't scale well with multi-threading. We traced the threads’ blocking states to two causes:
   
       A monitor in IncrementalIndex that synchronized access to dimensionDescs
       A Read-Write lock in StringDimensionIndexer
   
   The first case is addressed in PR#7838. You are welcome to take a look. Thanks!

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@druid.apache.org
For additional commands, e-mail: commits-help@druid.apache.org