[
https://issues.apache.org/jira/browse/HDFS-3245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13250998#comment-13250998
]
Todd Lipcon commented on HDFS-3245:
-----------------------------------
Another thing: we already have some per-datanode info in JMX. We should be sure
to add the registered software version to this info (and to the DFS node list
pages)
bq. It would be great to have some sort of statistics about the clients as well
I agree it would be nice, but we don't currently send software version strings
in the IPC handshake or anything. So, I think we should handle it separately
(this JIRA is just about exposing info we can already easily track)
> Add metrics and web UI for cluster version summary
> --------------------------------------------------
>
> Key: HDFS-3245
> URL: https://issues.apache.org/jira/browse/HDFS-3245
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: name-node
> Affects Versions: 2.0.0
> Reporter: Todd Lipcon
>
> With the introduction of protocol compatibility, once HDFS-2983 is committed,
> we have the possibility that different nodes in a cluster are running
> different software versions. To aid operators, we should add the ability to
> summarize the status of versions in the cluster, so they can easily determine
> whether a rolling upgrade is in progress or if some nodes "missed" an upgrade
> (eg maybe they were out of service when the software was updated)
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
