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https://issues.apache.org/jira/browse/HBASE-28950?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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wenhao resolved HBASE-28950.
----------------------------
Fix Version/s: 2.5.0
Resolution: Fixed
> After modifying the 'zookeeper.znode.parent' parameter and restarting HBase,
> HBase is unable to complete its initialization.
> ----------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-28950
> URL: https://issues.apache.org/jira/browse/HBASE-28950
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 2.4.17
> Reporter: wenhao
> Priority: Major
> Fix For: 2.5.0
>
> Attachments: hbase-hbase-master-manager210.bigdata.com.log,
> hbase-hbase-regionserver-manager210.bigdata.com.log,
> hbase-hbase-regionserver-master208.bigdata.com.log,
> hbase-hbase-regionserver-worker209.bigdata.com.log, hbase_meta.png,
> master-ui-home.png, master-ui-procedure.png
>
>
> In my tests, after modifying the 'zookeeper.znode.parent' parameter and
> restarting HBase, HBase is unable to complete its initialization with
> versions 2.3.* and 2.4.* , but this issue does not occur with version 2.2.* .
> If the Zookeeper cluster crashes and the data stored in zk cannot be
> recovered, and only a new ZK cluster can be set up, the HBase cluster will
> never be able to return to a normal state. This problem is particularly
> severe under certain failure scenarios.
>
> The following describes the situation after I modified the znode and
> restarted HBase. The data in the hbase:meta table was lost, the number of
> regions displayed on the Master UI remained at 1, and the meta table could
> not come online. Moreover, there were no obvious error messages found in the
> logs of the Master or Region Servers.
>
> Maybe it's related to the issue fixed by HBASE-26193?
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