New Contributor
Posts: 1
Registered: ‎03-14-2014

both Jobtrackers in standby mode

We are using CDH 4.4 and the issue is, after every couple hours, both Jobtracker go into standby mode. 

Even when I start the MR1 service, the JTs never go into Active mode and I use commandlne to put one of them in active mode.

After a few hours, without any errors in the logs, the JT goes back to standby mode. Stops listening on port 8021.


I tried increasing the maxclientConnection of zookeeper to 200, still the same.

How do I resolve this?

Posts: 1,903
Kudos: 435
Solutions: 307
Registered: ‎07-31-2013

Re: both Jobtrackers in standby mode

Could you post one such JT log here via pastebin please?