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https://issues.apache.org/jira/browse/HBASE-11059?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14027201#comment-14027201
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Jeffrey Zhong commented on HBASE-11059:
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{quote}
2) When hbase.assignment.usezk is ON
{quote}
Actually I mean hbase.assignment.usezk is OFF(new mode) and PENDING_OPEN RIT
state is stored in META but real region open RPC may(or may not) sent out
before master restarts. During master starts I didn't see where we handle
regions in PENDING_OPEN state from META.
{quote}
This seems to be an existing issue, right?
{quote}
Before we offline region and then set FAILED_OPEN in ZK. This is likely a new
behavior.
> ZK-less region assignment
> -------------------------
>
> Key: HBASE-11059
> URL: https://issues.apache.org/jira/browse/HBASE-11059
> Project: HBase
> Issue Type: Improvement
> Components: master, Region Assignment
> Reporter: Jimmy Xiang
> Assignee: Jimmy Xiang
> Fix For: 0.99.0
>
> Attachments: hbase-11059.patch, hbase-11059_v2.1.patch,
> hbase-11059_v2.2.patch, hbase-11059_v2.patch, zk-less_am.pdf,
> zk-less_assignment.png
>
>
> It seems that most people don't like region assignment with ZK (HBASE-5487),
> which causes many uncertainties. This jira is to support ZK-less region
> assignment. We need to make sure this patch doesn't break backward
> compatibility/rolling upgrade.
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