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https://issues.apache.org/jira/browse/HBASE-20569?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guanghao Zhang updated HBASE-20569:
-----------------------------------
    Attachment: HBASE-20569.HBASE-19064.014.patch

> NPE in RecoverStandbyProcedure.execute
> --------------------------------------
>
>                 Key: HBASE-20569
>                 URL: https://issues.apache.org/jira/browse/HBASE-20569
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Duo Zhang
>            Assignee: Guanghao Zhang
>            Priority: Major
>         Attachments: HBASE-20569.HBASE-19064.001.patch, 
> HBASE-20569.HBASE-19064.002.patch, HBASE-20569.HBASE-19064.003.patch, 
> HBASE-20569.HBASE-19064.004.patch, HBASE-20569.HBASE-19064.005.patch, 
> HBASE-20569.HBASE-19064.006.patch, HBASE-20569.HBASE-19064.007.patch, 
> HBASE-20569.HBASE-19064.008.patch, HBASE-20569.HBASE-19064.009.patch, 
> HBASE-20569.HBASE-19064.010.patch, HBASE-20569.HBASE-19064.011.patch, 
> HBASE-20569.HBASE-19064.012.patch, HBASE-20569.HBASE-19064.013.patch, 
> HBASE-20569.HBASE-19064.013.patch, HBASE-20569.HBASE-19064.014.patch
>
>
> We call ReplaySyncReplicationWALManager.initPeerWorkers in INIT_WORKERS state 
> and then use it in DISPATCH_TASKS. But if we restart the master and the 
> procedure is restarted from state DISPATCH_TASKS, no one will call the 
> initPeerWorkers method and we will get NPE.



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