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  • Latest Post - ‏2013-11-04T19:32:07Z by Stan
Brian M Williams
Brian M Williams
41 Posts

Pinned topic zookeeper as nameservice log4j errors

‏2013-11-04T18:07:58Z |

I have configured zookeeper to be the nameservice for my streams instance.  The streams instance seems to run fine, however, I get log4j errors when I run commands like "streamtool geturl":


log4j: WARN No appenders could be found for logger (org.apache.zookeeper.ZooKeepr).

log4j: WARN Please initialize the log4j system properly.

log4j: WARN See for more info.


My question:

Is this something that needs to be fixed on Zookeeper, or on Streams configuration?




  • Stan
    76 Posts

    Re: zookeeper as nameservice log4j errors


    These are warning and do not indicate a problem.  Zookeeper uses log4j but the values are  set by it's own log4j properties file.  If you wish to activate Zookeeper logging refer to the zookeeper manual:

    It says:  See the section on logging in this document. It is expected that you will setup a rolling file appender using the in-built log4j feature. The sample configuration file in the release tar's conf/ provides an example of this.

    This warning along with how to diable the appender check is  is talked about here: