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https://issues.apache.org/jira/browse/HDFS-3869?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-3869:
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Attachment: lagging-jn.png
dir-failed.png
open-for-write.png
open-for-read.png
Attached screenshots:
1) open-for-read.png: NN is in standby state, reading from shared edits
2) open-for-write.png: NN in active state, writing to shared edits and local
storage as well
3) dir-failed.png: I chmodded one of the local directories and triggered a
roll, so it got marked as failed
4) lagging-jn.png: I suspended one of the JNs so it fell behind the others,
while I did a bunch of transactions from a client.
> QJM: expose non-file journal manager details in web UI
> ------------------------------------------------------
>
> Key: HDFS-3869
> URL: https://issues.apache.org/jira/browse/HDFS-3869
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: QuorumJournalManager (HDFS-3077)
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Attachments: dir-failed.png, hdfs-3869.txt, lagging-jn.png,
> open-for-read.png, open-for-write.png
>
>
> Currently, the NN web UI only contains NN storage directories on local disk.
> It should also include details about any non-file JournalManagers in use.
> This JIRA targets the QJM branch, but will be useful for BKJM as well.
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