[ https://issues.apache.org/jira/browse/HDFS-229?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon reopened HDFS-229:

Reopening - having the checkpoint time on the 2NN is good, but I think being part of dfsadmin -report would still be useful. Additionally, a giant warning at the top of the NN web UI when it hasn't been checkpointed in some number of hours/days would also avoid issues.

The unfortunate truth is that a lot of shops don't do a good job of monitoring and have had their 2NN failing to checkpoint for weeks/months without realizing it (plenty of evidence on the list of this). A big warning on the NN UI is certainly not a substitute for proper monitoring, but would help users who don't have dedicated ops teams to get that monitoring in place.
Show last checkpoint time on the webUI

Key: HDFS-229
URL: https://issues.apache.org/jira/browse/HDFS-229
Project: Hadoop HDFS
Issue Type: New Feature
Reporter: Koji Noguchi
Priority: Minor

We've had a couple of occasions where secondary namenode fail/die without anyone noticing. (HADOOP-1695)
It would be nice if the last checkpoint time can be shown on the namenode webui.
This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

Search Discussions

Related Discussions

Discussion Navigation
viewthread | post
Discussion Overview
grouphdfs-dev @
postedDec 16, '09 at 7:16p
activeDec 16, '09 at 7:16p

1 user in discussion

Todd Lipcon (JIRA): 1 post



site design / logo © 2023 Grokbase