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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9539) Handle post namespace snapshot files when checking for HFile V1
Date Mon, 16 Sep 2013 21:11:51 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13768767#comment-13768767
] 

stack commented on HBASE-9539:
------------------------------

Hmmm... I added a rm -rf /tmp/h* to hadoopqa... and ran this again.... seems to be working:

https://builds.apache.org/view/H-L/view/HBase/job/PreCommit-HBASE-Build/7253/console

We'll see.
                
> Handle post namespace snapshot files  when checking for HFile V1 
> -----------------------------------------------------------------
>
>                 Key: HBASE-9539
>                 URL: https://issues.apache.org/jira/browse/HBASE-9539
>             Project: HBase
>          Issue Type: Bug
>          Components: migration
>    Affects Versions: 0.95.2
>            Reporter: Himanshu Vashishtha
>             Fix For: 0.98.0, 0.96.0
>
>         Attachments: HBase-9539.patch, HBase-9539-v1.patch
>
>
> When checking for HFileV1 before upgrading to 96, the snapshot file links tries to read
from post-namespace locations. The migration script needs to be run on 94 cluster, and it
requires reading the old (94) layout to check for HFileV1.
> {code}
> Got exception while reading trailer for file: hdfs://xxx:41020/cops/cluster_collection_events_snapshot/2086db948c484be62dcd76c170fe0b17/meta/cluster_collection_event=42037b88dbc34abff6cbfbb1fde2c900-c24b358ddd2f4429a7287258142841a2
> java.io.FileNotFoundException: Unable to open link: org.apache.hadoop.hbase.io.HFileLink
locations=[hdfs://xxx:41020/hbase-96/data/default/cluster_collection_event/42037b88dbc34abff6cbfbb1fde2c900/meta/c24b358ddd2f4429a7287258142841a2,
hdfs://xxx:41020/hbase-96/.tmp/data/default/cluster_collection_event/42037b88dbc34abff6cbfbb1fde2c900/meta/c24b358ddd2f4429a7287258142841a2,
hdfs://xxx:41020/hbase-96/archive/data/default/cluster_collection_event/42037b88dbc34abff6cbfbb1fde2c900/meta/c24b358ddd2f4429a7287258142841a2]
> {code}

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