rakeshadr commented on a change in pull request #1507:
URL: https://github.com/apache/hadoop-ozone/pull/1507#discussion_r512525048



##########
File path: 
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OzoneManager.java
##########
@@ -1228,17 +1238,57 @@ public void restart() throws IOException {
       // Allow OM to start as Http Server failure is not fatal.
       LOG.error("OM HttpServer failed to start.", ex);
     }
-
     omRpcServer.start();
+
     isOmRpcServerRunning = true;
 
+    startTrashEmptier(configuration);
+
     registerMXBean();
 
     startJVMPauseMonitor();
     setStartTime();
     omState = State.RUNNING;
   }
 
+
+  /**
+   * @param conf
+   * @throws IOException
+   * Starts a Trash Emptier thread that does an fs.trashRoots and performs

Review comment:
       Please follow general guidelines for the javadoc.
   1) Begins with function details.
   2) Provide `@param` details.
   3) Then `@return` info.
   4) Ending with `@throws` exception cases.




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