zookeeper datadir name configuration

[#1]

Simple question

When I deploy zookeeper programatically I change the datadir using the Cloudera API with the variable:

conf = {"dataDir": "/mnt/mydir" }

that I pass to the zookeeper service with:

zook_service.update_config(conf)

This indeed works and I can see the value in the Cloudera Manager

But when I check the /etc/zookeeper/conf/zoo.cfg file I see:

dataDir=/var/lib/zookeeper

Which one takes precedence?

[#2 · Accepted solution]

Files in /etc/ are not used by processes managed by Cloudera Manager.

See here for more info:
http://blog.cloudera.com/blog/2013/07/how-does-cloudera-manager-work/

Thanks,
Darren

[#3]

Ah, my bad. Darren caught it. Cloudera Manager will write zoo.cfg to
/var/run/cloudera-scm-agent/process/ (look for the latest director for
zookeeper)

[#4]

Did you run a rolling restart of the ZooKeeper service? I am also not
sure if Cloudera Manager copies the data from the old to the new
location, that is something you might have to take care of manually as
well