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https://issues.apache.org/jira/browse/HADOOP-7958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13199554#comment-13199554
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Eli Collins commented on HADOOP-7958:
-------------------------------------
This is fixed by HDFS-2808, haadmin now takes logical service IDs and will
error out if it can't map the logical service Id to a service address.
> HA: failover should error out if either host is not specified in the configs
> ------------------------------------------------------------------------------
>
> Key: HADOOP-7958
> URL: https://issues.apache.org/jira/browse/HADOOP-7958
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: ha
> Affects Versions: HA Branch (HDFS-1623)
> Reporter: Eli Collins
> Assignee: Eli Collins
>
> Per HADOOP-7924 users should not be allowed to specify hosts on the command
> that are not listed as potential options in the config. This catches the case
> where someone does a failover X Y but there's a typo in X so we accidentally
> end up having two actives.
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