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https://issues.apache.org/jira/browse/HBASE-3933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041402#comment-13041402
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stack commented on HBASE-3933:
------------------------------
@Gao I'm with Ted that you should not duplicate code. On going to 9seconds
from 4.5, do you think your change generally applicable? Everyone will now
have to wait at least nine seconds before startup proceeds. Or is it that you
have a cluster with lots of regionservers? Can you not just up the
configuration for how long to wait on new regionservers to check in? Also, can
you say more on why you block regionservers coming in and actually tell them
shutdown. Thats a pretty radical change. Thanks.
> Hmaster throw NullPointerException
> ----------------------------------
>
> Key: HBASE-3933
> URL: https://issues.apache.org/jira/browse/HBASE-3933
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.90.3
> Reporter: gaojinchao
> Assignee: gaojinchao
> Fix For: 0.90.4
>
> Attachments: Hmastersetup0.90
>
>
> NullPointerException while hmaster starting.
> {code}
> java.lang.NullPointerException
> at java.util.TreeMap.getEntry(TreeMap.java:324)
> at java.util.TreeMap.get(TreeMap.java:255)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.addToServers(AssignmentManager.java:1512)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.regionOnline(AssignmentManager.java:606)
> at
> org.apache.hadoop.hbase.master.AssignmentManager.processFailover(AssignmentManager.java:214)
> at
> org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:402)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:283)
> {code}
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