log4j property group to control logging activities for each service running in
your Hadoop cluster.
Ambari uses sets of properties called log4j
properties to control logging activities for each service running in your Hadoop
cluster. Initially, default values for each property reside in
Advanced[SERVICE_NAME]-log4j in a [SERVICE_NAME]-log4j
template file, and in custom[SERVICE_NAME]-log4j in a
custom[SERVICE_NAME]-log4j properties file. Log4j properties and values
that limit the size and number of backup log files for each service appear in
Advanced[SERVICE_NAME]-log4j with the log4j template file. Together,
the log4j template, custom properties file and backup properties are called the log4j property
group. To configure log settings for a service, first access the log4j property group for the
Use the template and custom properties files for a selected
service to edit and customize specific properties and values that control log activities for
that service, as necessary.
In Ambari Web, browse to .
For example, Advanced yarn-log4j in the YARN log4k property group for the YARN
service looks like:
In Ambari Web, browse to and browse to custom [SERVICE_NAME]log4j