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https://issues.apache.org/jira/browse/HBASE-21620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16726482#comment-16726482
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Zheng Hu commented on HBASE-21620:
----------------------------------

The TestRegionServerAbortTimeout is unrelated to this patch, and passed under 
my local.  [~zghaobac] any other concerns ?  If no,  the checkstyle will be 
fixed when committing.

> Problem in scan query when using more than one column prefix filter in some 
> cases.
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-21620
>                 URL: https://issues.apache.org/jira/browse/HBASE-21620
>             Project: HBase
>          Issue Type: Bug
>          Components: scan
>    Affects Versions: 3.0.0, 1.5.0, 2.2.0, 1.4.8, 2.1.2, 2.0.4
>         Environment: hbase-1.4.8, hbase-1.4.9
> hadoop-2.7.3
>            Reporter: Mohamed Mohideen Meeran
>            Assignee: Zheng Hu
>            Priority: Major
>             Fix For: 3.0.0, 1.5.0, 2.2.0, 1.4.10
>
>         Attachments: HBASE-21620.branch-1.patch, HBASE-21620.v1.patch, 
> HBASE-21620.v2.patch, HBaseImportData.java, file.txt, test.patch
>
>
> In some cases, unable to get the scan results when using more than one column 
> prefix filter.
> Attached a java file to import the data which we used and a text file 
> containing the values..
> While executing the following query (hbase shell as well as java program) it 
> is waiting indefinitely and after RPC timeout we got the following error.. 
> Also we noticed high cpu, high load average and very frequent young gc  in 
> the region server containing this row...
> scan 'namespace:tablename',\{STARTROW => 'test',ENDROW => 'test', FILTER => 
> "ColumnPrefixFilter('1544770422942010001_') OR 
> ColumnPrefixFilter('1544769883529010001_')"}
> ROW                                                  COLUMN+CELL              
>                                                      ERROR: Call id=18, 
> waitTime=60005, rpcTimetout=60000
>  
> Note: Table scan operation and scan with a single column prefix filter works 
> fine in this case.
> When we check the same query in hbase-1.2.5 it is working fine.
> Can you please help me on this..



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