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From "yuanxinen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10549) when there is a hole,LoadIncrementalHFiles will hung up in an infinite loop.
Date Tue, 04 Mar 2014 09:36:33 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

yuanxinen updated HBASE-10549:
------------------------------

    Description: 
First,I explan my test steps.
1.importtsv
2.split the region
3.delete the region info from .META.(make a hole)
4.LoadIncrementalHFiles (this step will hung up in an infinite loop)
I check the log,there are two issues
1.it create _tmp folder in an infinite loop.
hdfs://hacluster/output3/i/_tmp/_tmp/_tmp/_tmp/_tmp/_tmp/test_table,136.bottom
2.when slpliting the hfile,it put the first line data(1211) into two files(top and bottom)
Input File=hdfs://hacluster/output3/i/3ac6ec287c644a8fb72d96b13e31f576,outFile=hdfs://hacluster/output3/i/_tmp/test_table,2.top,KeyValue=1211/i:value/1390469306407/Put/vlen=1/ts=0
Input File=hdfs://hacluster/output3/i/3ac6ec287c644a8fb72d96b13e31f576,outFile=hdfs://hacluster/output3/i/_tmp/test_table,2.bottom,KeyValue=1211/i:value/1390469306407/Put/vlen=1/ts=0
and then I check the code.
So I think before spliting the hfile,we should check the consistency of startkey and endkey,if
something wrong,we should throw the exception,and stop LoadIncrementalHFiles.


> when there is a hole,LoadIncrementalHFiles will hung up in an infinite loop.
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-10549
>                 URL: https://issues.apache.org/jira/browse/HBASE-10549
>             Project: HBase
>          Issue Type: Bug
>          Components: HFile
>    Affects Versions: 0.94.11
>            Reporter: yuanxinen
>             Fix For: 0.96.2, 0.98.1, 0.99.0, 0.94.18
>
>         Attachments: HBASE-10549-trunk.patch
>
>
> First,I explan my test steps.
> 1.importtsv
> 2.split the region
> 3.delete the region info from .META.(make a hole)
> 4.LoadIncrementalHFiles (this step will hung up in an infinite loop)
> I check the log,there are two issues
> 1.it create _tmp folder in an infinite loop.
> hdfs://hacluster/output3/i/_tmp/_tmp/_tmp/_tmp/_tmp/_tmp/test_table,136.bottom
> 2.when slpliting the hfile,it put the first line data(1211) into two files(top and bottom)
> Input File=hdfs://hacluster/output3/i/3ac6ec287c644a8fb72d96b13e31f576,outFile=hdfs://hacluster/output3/i/_tmp/test_table,2.top,KeyValue=1211/i:value/1390469306407/Put/vlen=1/ts=0
> Input File=hdfs://hacluster/output3/i/3ac6ec287c644a8fb72d96b13e31f576,outFile=hdfs://hacluster/output3/i/_tmp/test_table,2.bottom,KeyValue=1211/i:value/1390469306407/Put/vlen=1/ts=0
> and then I check the code.
> So I think before spliting the hfile,we should check the consistency of startkey and
endkey,if something wrong,we should throw the exception,and stop LoadIncrementalHFiles.



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