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https://issues.apache.org/jira/browse/HBASE-7704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-7704:
-------------------------
Resolution: Fixed
Release Note:
Adds tool to check if any v1 hfiles present under hbase.rootdir. Run this tool
before you move to hbase 0.95/0.96 because hfile v1 files are no longer
supported in the newer versions of hbase (If an hfile v1 is found, run a major
compaction on the offending, containing region and that should purge the v1
file).
Here is what the usage for the tool looks like:
{code}
bin/hbase org.apache.hadoop.hbase.util.HFileV1Detector -h
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
{code}
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
Committed to 0.95 and trunk. Thanks for the patch Himanshu
> migration tool that checks presence of HFile V1 files
> -----------------------------------------------------
>
> Key: HBASE-7704
> URL: https://issues.apache.org/jira/browse/HBASE-7704
> Project: HBase
> Issue Type: Task
> Reporter: Ted Yu
> Assignee: Himanshu Vashishtha
> Priority: Blocker
> Fix For: 0.95.1
>
> Attachments: HBase-7704-v1.patch, HBase-7704-v2.patch,
> HBase-7704-v3.patch, HBase-7704-v4.patch, HBASE-7704-v5.patch,
> HBASE-7704-v6.patch
>
>
> Below was Stack's comment from HBASE-7660:
> Regards the migration 'tool', or 'tool' to check for presence of v1 files, I
> imagine it as an addition to the hfile tool
> http://hbase.apache.org/book.html#hfile_tool2 The hfile tool already takes a
> bunch of args including printing out meta. We could add an option to print
> out version only – or return 1 if version 1 or some such – and then do a bit
> of code to just list all hfiles and run this script against each. Could MR it
> if too many files.
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