AMBARI-19193. Add common log rotation settings to YARN Configs (Madhuvanthi Radhakrishnan via smohanty)

ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-START/scripts/params.py

@@ -208,6 +208,10 @@ yarn_log_dir_prefix = default("/configurations/yarn-env/yarn_log_dir_prefix","/v
 
 dfs_hosts = default('/configurations/hdfs-site/dfs.hosts', None)
 
+# Yarn log4j settings
+yarn_rm_summary_log_max_backup_size = default('configurations/yarn-log4j/yarn_rm_summary_log_max_backup_size', 256)
+yarn_rm_summary_log_number_of_backup_files = default('configurations/yarn-log4j/yarn_rm_summary_log_number_of_backup_files', 20)
+
 #log4j.properties
 if (('hdfs-log4j' in config['configurations']) and ('content' in config['configurations']['hdfs-log4j'])):
   log4j_props = config['configurations']['hdfs-log4j']['content']

ambari-server/src/main/resources/stacks/HDP/2.3/services/YARN/configuration/yarn-log4j.xml

@@ -20,6 +20,27 @@
  */
 -->
 <configuration supports_final="false" supports_adding_forbidden="true">
+  <property>
+    <name>yarn_rm_summary_log_max_backup_size</name>
+    <value>256</value>
+    <description>The maximum size of backup file before the log is rotated</description>
+    <display-name>Yarn Log: rmsummary backup file size</display-name>
+    <value-attributes>
+        <unit>MB</unit>
+    </value-attributes>
+     <on-ambari-upgrade add="true"/>
+   </property>
+   <property>
+      <name>yarn_rm_summary_log_number_of_backup_files</name>
+      <value>20</value>
+      <description>The number of backup files</description>
+      <display-name>Yarn Log: # of backup files</display-name>
+    <value-attributes>
+        <type>int</type>
+        <minimum>0</minimum>
+    </value-attributes>
+    <on-ambari-upgrade add="true"/>
+    </property>
   <property>
     <name>content</name>
     <display-name>yarn-log4j template</display-name>
@@ -54,8 +75,8 @@ yarn.server.resourcemanager.appsummary.logger=${hadoop.root.logger}
 #    - yarn.server.resourcemanager.appsummary.logger (resource manager app summary log level and appender)
 log4j.appender.RMSUMMARY=org.apache.log4j.RollingFileAppender
 log4j.appender.RMSUMMARY.File=${yarn.log.dir}/${yarn.server.resourcemanager.appsummary.log.file}
-log4j.appender.RMSUMMARY.MaxFileSize=256MB
-log4j.appender.RMSUMMARY.MaxBackupIndex=20
+log4j.appender.RMSUMMARY.MaxFileSize={{yarn_rm_summary_log_max_backup_size}}MB
+log4j.appender.RMSUMMARY.MaxBackupIndex={{yarn_rm_summary_log_number_of_backup_files}}
 log4j.appender.RMSUMMARY.layout=org.apache.log4j.PatternLayout
 log4j.appender.RMSUMMARY.layout.ConversionPattern=%d{ISO8601} %p %c{2}: %m%n
 log4j.appender.JSA.layout=org.apache.log4j.PatternLayout