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Posted to issues@hbase.apache.org by "Zheng Hu (JIRA)" <ji...@apache.org> on 2019/01/18 06:09:00 UTC

[jira] [Updated] (HBASE-21738) Latency spike happen when memstore flushing in 100% put case

     [ https://issues.apache.org/jira/browse/HBASE-21738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zheng Hu updated HBASE-21738:
-----------------------------
    Description: 
Made some performance test for 100% put case in branch-2 before. 

We can see that there are many  latency peak  in p999 latency curve , and the peak time are almost the point time which our region is flushing. 

See the [hbase20-ssd-put-10000000000-rows-latencys-and-qps |https://issues.apache.org/jira/secure/attachment/12955341/12955341_image-2019-01-18-14-03-28-662.png]

  was:
Made some performance test for 100% put case in branch-2 before. 

We can see that there are many  latency peak  in p999 latency curve , and the peak time are almost the point time which our region is flushing. 

 !image-2019-01-18-14-03-28-662.png! 


> Latency spike happen when memstore flushing in 100% put case
> ------------------------------------------------------------
>
>                 Key: HBASE-21738
>                 URL: https://issues.apache.org/jira/browse/HBASE-21738
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Performance
>            Reporter: Zheng Hu
>            Assignee: Zheng Hu
>            Priority: Major
>         Attachments: image-2019-01-18-14-03-28-662.png
>
>
> Made some performance test for 100% put case in branch-2 before. 
> We can see that there are many  latency peak  in p999 latency curve , and the peak time are almost the point time which our region is flushing. 
> See the [hbase20-ssd-put-10000000000-rows-latencys-and-qps |https://issues.apache.org/jira/secure/attachment/12955341/12955341_image-2019-01-18-14-03-28-662.png]



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