[GitHub] [hbase] jatsakthi commented on a change in pull request #225: HBASE-22377 Provide API to check the existence of a namespace which does not require ADMIN permissions

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jatsakthi commented on a change in pull request #225: HBASE-22377 Provide API to check the existence of a namespace which does not require ADMIN permissions
URL: https://github.com/apache/hbase/pull/225#discussion_r282180866
 
 

 ##########
 File path: hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java
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 @@ -297,6 +297,24 @@ public void call(MasterObserver observer) throws IOException {
     });
   }
 
+  public void preListNamespaces(final List<String> namespaces) throws IOException {
+    execOperation(coprocEnvironments.isEmpty() ? null : new MasterObserverOperation() {
+      @Override
+      public void call(MasterObserver oserver) throws IOException {
 
 Review comment:
   Just a minor spelling nit: 
   ```suggestion
         public void call(MasterObserver observer) throws IOException {
   ```

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