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Review request for ranger, Alok Lal, Ankita Sinha, Don Bosco Durai, Colm O hEigeartaigh, Gautam Borad, Madhan Neethiraj, Ramesh Mani, Selvamohan Neethiraj, Velmurugan Periasamy, and Qiang Zhang. Bugs: RANGER-1540 https://issues.apache.org/jira/browse/RANGER-1540 Repository: ranger Description ------- Log is very important for big data platform. The main purpose of log analysis is that we need to know who is running the service, in which machine running service, which service out of the problem. The ranger security admin should support the feature. Implement logic: 1. Modify the value of log4j.appender.xa_log_appender.file from $ {logdir}/ranger_admin.log to ${logdir} /ranger-$ {user}rangeradmin${hostname}.log in /security-admin/src/main/webapp/WEB-INF/log4j.properties file. 2. Pass ${user} and $ {hostname} as parameters to org.apache.ranger.server.tomcat.EmbeddedServer. 3. User obtains the user and hostname information by parsing the log file name. Diffs ----- embeddedwebserver/scripts/ranger-admin-services.sh f2d2bf5 security-admin/src/main/webapp/WEB-INF/log4j.properties 211de86 Diff: https://reviews.apache.org/r/58660/diff/1/ Testing ------- Thanks, pengjianhua