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https://issues.apache.org/jira/browse/HBASE-19121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16444703#comment-16444703
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stack commented on HBASE-19121:
-------------------------------
A few of us looking at a hosed cluster came up with a scenario that would help
with the dev of an hbck2: run a cluster with some loading, kill the master,
remove its procedure WALs, and then restart the master. HBCK2 should be able to
restore cluster to a working state. This manufacture is good too for figuring
scope of what hbck2 needs to provide. Chatting here a few of us, it was noted
that the Master UI and shell will not be useable unless the Master completes
initialization -- which it will not be able to do if the procedure WAL files
held part done procedures (e.g. a Move of the namespace region where the master
kill and prcedure wal files were removed after the move unassign but before the
moe assign completed).
> HBCK for AMv2 (A.K.A HBCK2)
> ---------------------------
>
> Key: HBASE-19121
> URL: https://issues.apache.org/jira/browse/HBASE-19121
> Project: HBase
> Issue Type: Bug
> Components: hbck
> Reporter: stack
> Priority: Major
>
> We don't have an hbck for the new AM. Old hbck may actually do damage going
> against AMv2.
> Fix.
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