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

Posted to dev@hbase.apache.org by "Zheng Hu (JIRA)" <ji...@apache.org> on 2019/05/15 04:03:00 UTC

[jira] [Created] (HBASE-22422) Retain an ByteBuff with refCnt=0 when getBlock from LRUCache

Zheng Hu created HBASE-22422:
--------------------------------

             Summary: Retain an ByteBuff with refCnt=0 when getBlock from LRUCache
                 Key: HBASE-22422
                 URL: https://issues.apache.org/jira/browse/HBASE-22422
             Project: HBase
          Issue Type: Sub-task
            Reporter: Zheng Hu
            Assignee: Zheng Hu
         Attachments: image-2019-05-15-12-00-03-641.png

After runing YCSB scan/get benchmark in our XiaoMi cluster,  we found the get QPS dropped from  25000 to hunderds in a cluster with five nodes.  

After enable the debug log at YCSB client side,  I found the following stacktrace. 

!image-2019-05-15-12-00-03-641.png! 

Need a patch to fix this. 



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)