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https://issues.apache.org/jira/browse/HBASE-12103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeffrey Zhong updated HBASE-12103:
----------------------------------
Release Note:
Check existence of HFiles in v1 format. Usage is as following:
{noformat}
usage: HFileV1Detector [-h] [-n <arg>] [-p <arg>]
-h,--help Help
-n,--numberOfThreads <arg> Number of threads to use while processing
HFiles.
-p,--path <arg> Path to a table, or hbase installation
In case no option is provided, it processes hbase.rootdir using 10 threads.
Example:
To detect any HFileV1 in a given hbase installation '/myhbase':
$ $HBASE_HOME/bin/hbase org.apache.hadoop.hbase.util.HFileV1Detector -p
/myhbase
{noformat}
> Backport HFileV1Detector to 0.94
> --------------------------------
>
> Key: HBASE-12103
> URL: https://issues.apache.org/jira/browse/HBASE-12103
> Project: HBase
> Issue Type: Task
> Reporter: Jeffrey Zhong
> Assignee: Jeffrey Zhong
> Fix For: 0.94.24
>
> Attachments: HBASE-12103.patch
>
>
> The reason of back porting is that 0.96+ HBase doesn't support HFileV1 format
> anymore. While HFileV1Detector in 0.96+, which is supposed to check v1 hfile
> before upgrade, can't talk to pre 0.96 cluster because underlying hadoop
> doesn't compatible either due to protocol buffer version bump.
> After the back port, a user can just download the latest 0.94 HBase tar ball
> in a machine, point its config to a 0.94 cluster to check v1 file existance
> by running following command:
> {code}
> ./bin/hbase org.apache.hadoop.hbase.util.HFileV1Detector -p <hbase root data
> path>
> {code}
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