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https://issues.apache.org/jira/browse/HBASE-8348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Himanshu Vashishtha updated HBASE-8348:
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Attachment: Upgradeto96.docx
Upgradeto96.pdf
Attached is a help section on migration. It is in doc format; let me know if it
is okay, and I will do a doc patch for it. Thanks.
> Polish the migration to 0.96
> ----------------------------
>
> Key: HBASE-8348
> URL: https://issues.apache.org/jira/browse/HBASE-8348
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.95.0
> Reporter: Jean-Daniel Cryans
> Assignee: rajeshbabu
> Priority: Blocker
> Fix For: 0.96.0
>
> Attachments: 8348v5.txt, 8348v5.txt, HBASE-8348-approach-2.patch,
> HBASE-8348-approach-2-v2.1.patch, HBASE-8348-approach-2-v2.2.patch,
> HBASE-8348-approach-2-v2.3.patch, HBASE-8348-approach-2-v2.4.patch,
> HBASE-8348-approach-3.patch, HBASE-8348_trunk.patch,
> HBASE-8348_trunk_v2.patch, HBASE-8348_trunk_v3.patch, log, log-2,
> Upgradeto96.docx, Upgradeto96.pdf
>
>
> Currently, migration works but there's still a couple of rough edges:
> - HBASE-8045 finished the .META. migration but didn't remove ROOT, so it's
> still on the filesystem.
> - Data in ZK needs to be removed manually. Either we fix up the data in ZK
> or we delete it ourselves.
> - TestMetaMigrationRemovingHTD has a testMetaUpdatedFlagInROOT method, but
> ROOT is gone now.
> Elliott was also mentioning that we could have "hbase migrate" do the HFileV1
> checks, clear ZK, remove ROOT, etc.
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