question Re: How to change zookeeper parameter non-managed by ambari in Archives of Support Questions (Read Only)

How to change zookeeper parameter non-managed by ambari

lamri9 — Wed, 19 Dec 2018 00:00:05 GMT

In order to add zookeeper observer in my Zookeeper observer, I need to make append the line "server.4=hostname:2888:3888" by ":observer" in configuration file zoo.cfg . However, this parameter is not managed by ambari. I tried to use the ambari script but not display all parameter

/var/lib/ambari-server/resources/scripts/configs.py --user=admin --password=admin--port=8080 --action=get --host=hostnamexx--cluster=CLUSTPOC--config-type=zoo.cfg --file=/tmp/zooConf.json

How to change this line

server.4=hostname:2888:3888

server.4=hostname:2888:3888:observer

Re: How to change zookeeper parameter non-managed by ambari

akhilsnaik — Wed, 19 Dec 2018 00:14:34 GMT

Hi @lam rab ,

If ambari is not managing zoo.cfg you cannot change it via configs.py also as configs.py do the same thing ambari does in web UI .why dont you mannually ssh to zeppelin host and

[root@asnaik4 conf]# cd /usr/hdp/current/zookeeper-server/conf
[root@asnaik4 conf]#vi zoo.cfg

If ambari is not managing a config file , the script also cannot help

Please accept this answer if it helps you.

Re: How to change zookeeper parameter non-managed by ambari

lamri9 — Wed, 19 Dec 2018 00:36:40 GMT

Hi @Akhil S Naik

Thank you for you reply, but when I modify via vim zoo.cfg, the config removed when I restart the Zookeeper service.

configs.py or APIs cannot help as you see, they get only the parameters managed by Ambari.

Re: How to change zookeeper parameter non-managed by ambari

akhilsnaik — Wed, 19 Dec 2018 00:48:25 GMT

Hi @lam rab,

Unfortunately ambari doesnt allow you add observers in the zoo.cfg.

You can refer to : https://issues.apache.org/jira/browse/AMBARI-24748

here user is facing the same issue that you are facing.

See if you can manually start zookeeper after changing the zoo.cfg which might help you.

Please accept this answer if this helped you.

Re: How to change zookeeper parameter non-managed by ambari

lamri9 — Thu, 20 Dec 2018 17:23:32 GMT

The change with vim zoo.cfg and restart zookeeper manually doesn't help as long as we restart zookeeper from ambari