[jira] Commented: (HBASE-1982) [EC2] handle potentially large and uneven instance startup times

["Andrew Purtell (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12792695#action_12792695 ] 

Andrew Purtell commented on HBASE-1982:
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The simplest and most direct approach is to support a new command line parameter for the master which sets the minimum number of region servers that must check in before user tables are deployed. 

> [EC2] handle potentially large and uneven instance startup times
> ----------------------------------------------------------------
>
>                 Key: HBASE-1982
>                 URL: https://issues.apache.org/jira/browse/HBASE-1982
>             Project: Hadoop HBase
>          Issue Type: Sub-task
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>            Priority: Minor
>             Fix For: 0.20.3, 0.21.0
>
>
> The variability in instance start latency may impact a HBase cluster. All the slaves are started with one invocation of ec2-run-instances but not all may come up at once. Handle potentially large and uneven instance startup times through a master configuration option that prevents assignment of user tables until the configured number of region servers are up. 

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