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https://issues.apache.org/jira/browse/SAMZA-354?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14231129#comment-14231129
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Martin Kleppmann commented on SAMZA-354:
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Do we have any docs for CheckpointMigrationTool? It would be good to have a
description of how to use this tool on the website before we announce the 0.8.0
release. The [tutorials
section|http://samza.incubator.apache.org/learn/tutorials/latest/] would
probably be a good place.
> Write tool to convert old-style checkpoint log to post-SAMZA-123 format
> -----------------------------------------------------------------------
>
> Key: SAMZA-354
> URL: https://issues.apache.org/jira/browse/SAMZA-354
> Project: Samza
> Issue Type: Task
> Affects Versions: 0.8.0
> Reporter: Jakob Homan
> Assignee: Navina Ramesh
> Fix For: 0.8.0
>
> Attachments: SAMZA-354-CheckpointMigrationTool-ver-1.patch,
> SAMZA-354-CheckpointMigrationTool.patch
>
>
> After SAMZA-123, the checkpoint log has a new format (keyed entries
> interspersed with statelog-partition mapping) and a new name. It would be
> simple to write a tool that would consume an old-style log and write out a
> new-style log, using the GroupByPartition strategy. This would allow
> existing jobs to not lose checkpointing.
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