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https://issues.apache.org/jira/browse/KYLIN-2788?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16180116#comment-16180116
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Shaofeng SHI commented on KYLIN-2788:
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I found it is a bug in HBase; will propose a hot-fix for it.
> HFile is not written to S3
> --------------------------
>
> Key: KYLIN-2788
> URL: https://issues.apache.org/jira/browse/KYLIN-2788
> Project: Kylin
> Issue Type: Bug
> Affects Versions: v2.0.0
> Reporter: Alexander Sterligov
> Assignee: Shaofeng SHI
> Fix For: 2.2.0
>
> Attachments: ConvertoHFileOnS3.xlsx
>
>
> I set kylin.hbase.cluster.fs to s3 bucket where hbase lives.
> Step "Convert Cuboid Data to HFile" finished without errors. Statistics at
> the end of the job said that it has written lot's of data to s3.
> But there is no hfiles in kylin_metadata folder (kylin_metadata
> /kylin-1e436685-7102-4621-a4cb-6472b866126d/<table name>/hfile), but only
> _temporary folder and _SUCCESS file.
> _temporary contains hfiles inside attempt folders. it looks like there were
> not copied from _temporary to result dir. But there is no errors neither in
> kylin log, nor in reducers' logs.
> Then loading empty hfiles produces empty segments.
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