Don't process join command if the node has been a member.

droonga · Jun 28, 2014 · 5448fea · 5448fea
1 parent 64e3392
commit 5448fea
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/bin/droonga-engine-join b/bin/droonga-engine-join
@@ -93,6 +93,11 @@ unless dataset
           "--replica-source-host option."
 end
 
+if generator.dataset_for_host(options.joining_host)
+  raise "The joining node is already a member of the cluster. " +
+          "You cannot join a member twice."
+end
+
 options.tag  = dataset.tag
 options.port = dataset.port