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Date: Tue, 29 Jan 2008 22:52:34 -0800 (PST)
From: "Billy Pearson (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-2741) [hbase] Split failed due to
 spliting of a split before compaction could complete after first split.
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    [ https://issues.apache.org/jira/browse/HADOOP-2741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563860#action_12563860 ] 

Billy Pearson commented on HADOOP-2741:
---------------------------------------

I thought this was from a call to a file split but looking now and see what failed somehow the file just is not there.

I was testing the splits to see if the split would fail if all family columns where not compacted before the next split so we would have to reference source file 2 split levels but not sure if this is the bug that did the above error or not.

> [hbase] Split failed due to spliting of a split before compaction could complete after first split.
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-2741
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2741
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hbase
>         Environment: svc hadoop 616618
>            Reporter: Billy Pearson
>             Fix For: 0.16.0
>
>
> This error happened after a region tried to split before a complete compaction could be done on the region from the first split
> I thank we should que up a compaction on loading of a region on a region server this should help keep this from happening but also we should have the split thread check to see if the region safe to split.
> {code}
> 2008-01-30 00:07:34,250 ERROR org.apache.hadoop.hbase.HRegionServer: Split failed for region webdata,,1201671207519
> java.io.FileNotFoundException: File hdfs://10.0.0.1:9000/gfs_storage/hadoop-root/hbase/webdata/1080614411/size/mapfiles/5351268197296217146/data does not exist.
>         at org.apache.hadoop.dfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:341)
>         at org.apache.hadoop.hbase.HStoreFile.length(HStoreFile.java:456)
>         at org.apache.hadoop.hbase.HStore.loadHStoreFiles(HStore.java:876)
>         at org.apache.hadoop.hbase.HStore.<init>(HStore.java:731)
>         at org.apache.hadoop.hbase.HRegion.<init>(HRegion.java:286)
>         at org.apache.hadoop.hbase.HRegion.splitRegion(HRegion.java:597)
>         at org.apache.hadoop.hbase.HRegionServer$Splitter.split(HRegionServer.java:303)
>         at org.apache.hadoop.hbase.HRegionServer$Splitter.run(HRegionServer.java:263)
> {code}

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