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From Patrick Dignan <pdig...@hubspot.com>
Subject No IPC Handlers showing up in Web UI
Date Thu, 30 Oct 2014 21:09:41 GMT
Hey all,

I'm seeing an issue where IPC Handlers aren't showing up in the Region
server Web UI, even though jstack shows that they are waiting/processing.
This is on Hbase 0.94.15-cdh4.7.0

For example, when it's working, it looks something like this:

And when it's not working it just looks like this:

Note that it's not an issue with the JSON interface, the HTML version
doesn't show tasks either.  However, compactions DO show up in the
interface, so it's possible it is some difference in how
MonitoredRPCHandlerImpl and MonitoredTaskImpl work.

Restarting does fix the issue, but it returns after a while.

Does anybody know what might be happening here?


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