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https://issues.apache.org/jira/browse/HDFS-13589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16480134#comment-16480134
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Hanisha Koneru commented on HDFS-13589:
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Added a patch to return the upgrade status for a normal upgrade (non-rolling).
Some sample outputs of the {{dfsadmin -upgradeStatus}} command are below:
{code:java}
$ hdfs dfsadmin -upgradeStatus
Upgrade finalized for mycluster-node-1/172.18.0.2:8020
Upgrade finalized for mycluster-node-2/172.18.0.3:8020
$ hdfs dfsadmin -upgradeStatus
Upgrade not finalized for mycluster-node-1/172.18.0.2:8020
Upgrade finalized for mycluster-node-2/172.18.0.3:8020
$ hdfs dfsadmin -upgradeStatus
Upgrade finalized for mycluster-node-2/172.18.0.3:8020
upgradeStatus: Call From e6815a2a1257/172.18.0.2 to mycluster-node-1:8020
failed on connection exception: java.net.ConnectException: Connection refused;
For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
{code}
> Add dfsAdmin command to query if "upgrade" is finalized
> -------------------------------------------------------
>
> Key: HDFS-13589
> URL: https://issues.apache.org/jira/browse/HDFS-13589
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Reporter: Hanisha Koneru
> Assignee: Hanisha Koneru
> Priority: Major
> Attachments: HDFS-13589.001.patch
>
>
> When we do upgrade on a Namenode (non rollingUpgrade), we should be able to
> query whether the upgrade has been finalized or not.
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