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https://issues.apache.org/jira/browse/HDFS-5728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13881518#comment-13881518
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Kihwal Lee commented on HDFS-5728:
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I've committed this to trunk and branch-2. Thank you for reporting and working
on the patch, Vinay. Thanks for the reveiw, Uma.
> [Diskfull] Block recovery will fail if the metafile does not have crc for all
> chunks of the block
> -------------------------------------------------------------------------------------------------
>
> Key: HDFS-5728
> URL: https://issues.apache.org/jira/browse/HDFS-5728
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 0.23.10, 2.2.0
> Reporter: Vinay
> Assignee: Vinay
> Priority: Critical
> Fix For: 3.0.0, 2.4.0
>
> Attachments: HDFS-5728.patch, HDFS-5728.patch, HDFS-5728.patch
>
>
> 1. Client (regionsever) has opened stream to write its WAL to HDFS. This is
> not one time upload, data will be written slowly.
> 2. One of the DataNode got diskfull ( due to some other data filled up disks)
> 3. Unfortunately block was being written to only this datanode in cluster, so
> client write has also failed.
> 4. After some time disk is made free and all processes are restarted.
> 5. Now HMaster try to recover the file by calling recoverLease.
> At this time recovery was failing saying file length mismatch.
> When checked,
> actual block file length: 62484480
> Calculated block length: 62455808
> This was because, metafile was having crc for only 62455808 bytes, and it
> considered 62455808 as the block size.
> No matter how many times, recovery was continously failing.
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