Ambari REST APIs to add a component in kerberized cluster. I tried and tested these in Ambari 2.4.1 version Here is an example to install SECONDARY_NAMENODE 1. API to Add a Component curl -s -H "X-Requested-By:ambari" --user admin:admin -i -X POST -d '{"host_components":[{"HostRoles":{"component_name":"SECONDARY_NAMENODE"}}]}' http://AMBARIHOST:8080/api/v1/clusters/CLUSTERNAME/hosts?Hosts/host_name=COMPONENTHOST 2. API to install the Above added component. curl -s -H "X-Requested-By:ambari" --user admin:admin -i -X PUT -d '{"RequestInfo":{"context":"Install SECONDARY_NAMENODE","operation_level":{"level":"HOST_COMPONENT","cluster_name":"test","host_name":"COMPONENTHOST","service_name":"HDFS"}},"Body":{"HostRoles":{"state":"INSTALLED"}}}' http://AMBARIHOST:8080/api/v1/clusters/CLUSTERNAME/hosts/COMPONENTHOST/host_components/SECONDARY_NAMENODE 3. API to provide kerberos credentials. curl -s -H "X-Requested-By:ambari" --user admin:admin -i -X POST -d '{ "Credential" : { "principal" : "admin/admin", "key" : "admin", "type" : "temporary" } }' http://AMBARIHOST:8080/api/v1/clusters/CLUSTERNAME/credentials/kdc.admin.credential Note: Replace CLUSTERNAME, AMBARIHOST, COMPONENTHOST with appropriate values ... View more

Steps to configure ambari-server to archive log files. 1. Open /etc/ambari-server/conf/log4j.properties file, log4j.appender.file=org.apache.log4j.RollingFileAppender log4j.appender.file.File=${ambari.log.dir}/${ambari.log.file} log4j.appender.file.MaxFileSize=80MB log4j.appender.file.MaxBackupIndex=60 log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%d{DATE} %5p [%t] %c{1}:%L - %m%n to log4j.appender.file=org.apache.log4j.rolling.RollingFileAppender log4j.appender.file.rollingPolicy=org.apache.log4j.rolling.FixedWindowRollingPolicy log4j.appender.file.triggeringPolicy=org.apache.log4j.rolling.SizeBasedTriggeringPolicy log4j.appender.file.File=${ambari.log.dir}/${ambari.log.file} log4j.appender.file.triggeringPolicy.MaxFileSize=10485760 log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%d{DATE} %5p [%t] %c{1}:%L - %m%n log4j.appender.file.rollingPolicy.FileNamePattern=${ambari.log.dir}/${ambari.log.file}.%i.log.gz Note: change the configurations appropriately as per your needs. 2. download apache-log4j-extras.jar from : https://logging.apache.org/log4j/extras/download.html 3. copy downloaded jar to /usr/lib/ambari-server/ path 4. Restart ambari-server Check the logs files getting archived. look out for warnings in ambari-server.out. I have used https://community.hortonworks.com/articles/50058/using-log4j-extras-how-to-rotate-as-well-as-zip-th.html as reference. ... View more