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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2020/06/09 16:17:15 UTC

[GitHub] [hadoop-ozone] runzhiwang opened a new pull request #1042: HDDS-3759. Avoid UUID#toString call in PipelineID#getProtobuf

runzhiwang opened a new pull request #1042:
URL: https://github.com/apache/hadoop-ozone/pull/1042


   ## What changes were proposed in this pull request?
   I start a ozone cluster with 1000 datanodes, and run two weeks with heavy workload, and perf scm.
   `UUID.toString` in `PipelineID::getProtobuf` cost 0.13% cpu, and `getContainerWithPipelineBatch` cost 1.76%, so `UUID.toString` cost about 0.13 / 1.76 = 7.4% in `getContainerWithPipelineBatch`. Because `getContainerWithPipelineBatch` happens in the main chain of read, so we need to improve it.
   
   ![image](https://user-images.githubusercontent.com/51938049/84117318-ec3b1280-aa63-11ea-85e5-bf3860511bea.png)
   
   ![image](https://user-images.githubusercontent.com/51938049/84117326-efce9980-aa63-11ea-970d-953481cd43bd.png)
   
   
   ## What is the link to the Apache JIRA
   
   https://issues.apache.org/jira/browse/HDDS-3759
   
   ## How was this patch tested?
   
   Existed tests.


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[GitHub] [hadoop-ozone] nandakumar131 merged pull request #1042: HDDS-3759. Avoid UUID#toString call in PipelineID#getProtobuf

Posted by GitBox <gi...@apache.org>.
nandakumar131 merged pull request #1042:
URL: https://github.com/apache/hadoop-ozone/pull/1042


   


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[GitHub] [hadoop-ozone] nandakumar131 commented on pull request #1042: HDDS-3759. Avoid UUID#toString call in PipelineID#getProtobuf

Posted by GitBox <gi...@apache.org>.
nandakumar131 commented on pull request #1042:
URL: https://github.com/apache/hadoop-ozone/pull/1042#issuecomment-641121643


   Thanks @runzhiwang for the contribution.


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