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From "shenxianqiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17429) HBase bulkload cannot support HDFS viewFs
Date Fri, 06 Jan 2017 07:45:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15803883#comment-15803883
] 

shenxianqiang commented on HBASE-17429:
---------------------------------------

hdfs copy(-cp) and move(-mv) is very different.
I mean before the patch,bulkload always copy(hdfs -cp) hfile to hbase region.
This leads to bulkload performance degrades dramatically.
OK?

> HBase bulkload cannot support HDFS viewFs
> -----------------------------------------
>
>                 Key: HBASE-17429
>                 URL: https://issues.apache.org/jira/browse/HBASE-17429
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.6.1, 1.2.4
>         Environment: CDH5.7.0 hbase0.98.6
>            Reporter: shenxianqiang
>         Attachments: HBASE-17429.patch
>
>
> Since hadoop cluster suppor fedration,hbase bulkload performance degrades dramatically.
Even if hbase directory and bulkload directory in the same nameservice.
> {quote}
> 2017-01-04 21:58:40,919 INFO org.apache.hadoop.hbase.regionserver.HRegionFileSystem:
use bulkload file name is : hdfs://CloudTestNameNode2:8020
> 2017-01-04 21:58:40,924 ERROR org.apache.hadoop.ipc.RpcServer: Unexpected throwable object

> java.lang.IllegalArgumentException: Wrong FS: viewfs://nsX/user/test/I/_tmp/9cde5dde60374b1483b7d09b65258304.top,
expected: hdfs://CloudTestNameNode2:8020
>         at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:657)
>         at org.apache.hadoop.hdfs.DistributedFileSystem.getPathName(DistributedFileSystem.java:194)
>         at org.apache.hadoop.hdfs.DistributedFileSystem.access$000(DistributedFileSystem.java:106)
>         at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1215)
>         at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1211)
>         at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
>         at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1211)
>         at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:425)
>         at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1412)
>         at org.apache.hadoop.hbase.regionserver.HRegionFileSystem.commitStoreFile(HRegionFileSystem.java:373)
>         at org.apache.hadoop.hbase.regionserver.HRegionFileSystem.bulkLoadStoreFile(HRegionFileSystem.java:496)
>         at org.apache.hadoop.hbase.regionserver.HStore.bulkLoadHFile(HStore.java:708)
>         at org.apache.hadoop.hbase.regionserver.HRegion.bulkLoadHFiles(HRegion.java:3658)
>         at org.apache.hadoop.hbase.regionserver.HRegion.bulkLoadHFiles(HRegion.java:3564)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.bulkLoadHFile(HRegionServer.java:3378)
>         at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29589)
>         at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2031)
>         at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:114)
>         at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:94)
>         at java.lang.Thread.run(Thread.java:745)
> {quote}



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