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From Siddharth Karandikar <siddharth.karandi...@gmail.com>
Subject Re: FileNotFound Exception while ExportSnapshot
Date Tue, 06 Aug 2013 10:26:55 GMT
Fixed the subject.



On Tue, Aug 6, 2013 at 3:55 PM, Siddharth Karandikar
<siddharth.karandikar@gmail.com> wrote:
> Hi All,
>
> I am continuing to tryout ExportSnapshot functionality. Most of the
> time it works perfectly fine.
>
> But recently, I am seeing some strange exception. When I run
> ExportSnapshot, it shows following error and I have no clue how to
> debug this.
>
> java.io.FileNotFoundException: Unable to open link:
> org.apache.hadoop.hbase.io.HLogLink
> locations=[hdfs://10.209.17.88:9000/hbase/.logs/f1/t1=553ae805df577846bea889ebbec885f2-t1=553ae805df577846bea889ebbec885f2-919998c061eb444eb3ac69ee55c71fd6,
> hdfs://10.209.17.88:9000/hbase/.oldlogs/t1=553ae805df577846bea889ebbec885f2-t1=553ae805df577846bea889ebbec885f2-919998c061eb444eb3ac69ee55c71fd6]
>         at org.apache.hadoop.hbase.io.FileLink$FileLinkInputStream.tryOpen(FileLink.java:305)
>         at org.apache.hadoop.hbase.io.FileLink$FileLinkInputStream.<init>(FileLink.java:120)
>         at org.apache.hadoop.hbase.io.FileLink$FileLinkInputStream.<init>(FileLink.java:111)
>         at org.apache.hadoop.hbase.io.FileLink.open(FileLink.java:390)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot$ExportMapper.openSourceFile(ExportSnapshot.java:299)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot$ExportMapper.copyFile(ExportSnapshot.java:168)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot$ExportMapper.map(ExportSnapshot.java:139)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot$ExportMapper.map(ExportSnapshot.java:88)
>         at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
>         at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
>         at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
>
>
> Full logs of this Export run can be found here - http://pastebin.com/1yxK3fKE
>
> If I try to Export this snapshot back (i.e. import), I get following error -
>
> siddharth@hbase1-bigdata:~/tools/hbase-0.95.1-hadoop1$ ./bin/hbase
> org.apache.hadoop.hbase.snapshot.ExportSnapshot
> -Dfs.default.name=hdfs://hbase1-bigdata.vxindia.veritas.com:9000/
> -Dhbase.rootdir=hdfs://hbase1-bigdata.vxindia.veritas.com:9000/hbase-ss/sn2/
> -snapshot sn2 -copy-to hdfs://10.209.17.88:9000/hbase/
> Exception in thread "main" java.io.FileNotFoundException: Unable to
> open link: org.apache.hadoop.hbase.io.HFileLink
> locations=[hdfs://hbase1-bigdata.vxindia.veritas.com:9000/hbase-ss/sn2/t1/553ae805df577846bea889ebbec885f2/f1/t1=553ae805df577846bea889ebbec885f2-919998c061eb444eb3ac69ee55c71fd6,
> hdfs://hbase1-bigdata.vxindia.veritas.com:9000/hbase-ss/sn2/.tmp/t1/553ae805df577846bea889ebbec885f2/f1/t1=553ae805df577846bea889ebbec885f2-919998c061eb444eb3ac69ee55c71fd6,
> hdfs://hbase1-bigdata.vxindia.veritas.com:9000/hbase-ss/sn2/.archive/t1/553ae805df577846bea889ebbec885f2/f1/t1=553ae805df577846bea889ebbec885f2-919998c061eb444eb3ac69ee55c71fd6]
>         at org.apache.hadoop.hbase.io.FileLink.getFileStatus(FileLink.java:376)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot$1.storeFile(ExportSnapshot.java:383)
>         at org.apache.hadoop.hbase.util.FSVisitor.visitRegionStoreFiles(FSVisitor.java:115)
>         at org.apache.hadoop.hbase.util.FSVisitor.visitTableStoreFiles(FSVisitor.java:81)
>         at org.apache.hadoop.hbase.snapshot.SnapshotReferenceUtil.visitTableStoreFiles(SnapshotReferenceUtil.java:110)
>         at org.apache.hadoop.hbase.snapshot.SnapshotReferenceUtil.visitReferencedFiles(SnapshotReferenceUtil.java:95)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot.getSnapshotFiles(ExportSnapshot.java:378)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot.run(ExportSnapshot.java:618)
>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot.innerMain(ExportSnapshot.java:690)
>         at org.apache.hadoop.hbase.snapshot.ExportSnapshot.main(ExportSnapshot.java:694)
>
>
>
> Thanks,
> Siddharth

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