dbwong commented on a change in pull request #430: PHOENIX-5091 Add new 
features to UpdateStatisticsTool
URL: https://github.com/apache/phoenix/pull/430#discussion_r251172563
 
 

 ##########
 File path: 
phoenix-core/src/main/java/org/apache/phoenix/schema/stats/UpdateStatisticsTool.java
 ##########
 @@ -190,9 +252,9 @@ private CommandLine parseOptions(String[] args) {
                     + "parameter");
         }
 
-        if (!cmdLine.hasOption(SNAPSHOT_NAME_OPTION.getOpt())) {
-            throw new IllegalStateException(SNAPSHOT_NAME_OPTION.getLongOpt() 
+ " is a mandatory "
-                    + "parameter");
+        if (cmdLine.hasOption(MANAGE_SNAPSHOT_OPTION.getOpt())
+                && !cmdLine.hasOption(RUN_FOREGROUND_OPTION.getOpt())) {
+            throw new IllegalStateException("Snapshot cannot be managed if job 
is running in background");
 
 Review comment:
   We synced up off line, Karan will post a note on the JIRA but basically I 
was wondering if there was any technical limitation to preventing a custom 
final reducer that handled the clean up.

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