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https://issues.apache.org/jira/browse/HDFS-3765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-3765:
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Attachment: hdfs-3765.txt
New rev based on Vinay's, with a few more fixes:
- include the reset method for ExitUtil so the test can pass
- dont allow InitializeSharedEdits to run when no shared edits are configured
- fix for initializeSharedEdits to work when checkpoints are not on segment
boundaries -- the previous assertion there wasn't correct
- add debug/trace logging, which was helpful for debugging the above
- fix a bug where an extra END_LOG_SEGMENT would get inserted when the source
logs had an END_LOG_SEGMENT
- call recoverClosedStreams() before writing to shared edits - necessary for
QJM, since the recovery phase has to run before a write phase
- unset the shared edits in the "source" image - otherwise it will fail to read
from an unformatted journal for some JMs
I've been testing this with QJM and it seems to work well.
> Namenode INITIALIZESHAREDEDITS should be able to initialize all shared
> storages
> -------------------------------------------------------------------------------
>
> Key: HDFS-3765
> URL: https://issues.apache.org/jira/browse/HDFS-3765
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ha
> Affects Versions: 2.1.0-alpha, 3.0.0
> Reporter: Vinay
> Assignee: Vinay
> Attachments: HDFS-3765.patch, HDFS-3765.patch, HDFS-3765.patch,
> hdfs-3765.txt, hdfs-3765.txt
>
>
> Currently, NameNode INITIALIZESHAREDEDITS provides ability to copy the edits
> files to file schema based shared storages when moving cluster from Non-HA
> environment to HA enabled environment.
> This Jira focuses on the following
> * Generalizing the logic of copying the edits to new shared storage so that
> any schema based shared storage can initialized for HA cluster.
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