HBASE-4710 UnknownProtocolException should abort client retries as a DoNotRetryIOException

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1196185 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -432,6 +432,7 @@ Release 0.92.0 - Unreleased
    HBASE-4613  hbase.util.Threads#threadDumpingIsAlive sleeps 1 second,
                slowing down the shutdown by 0.5s
    HBASE-4552  multi-CF bulk load is not atomic across column families (Jonathan Hsieh)
+   HBASE-4710  UnknownProtocolException should abort client retries
 
   TESTS
    HBASE-4450  test for number of blocks read: to serve as baseline for expected

src/main/java/org/apache/hadoop/hbase/ipc/HBaseRPC.java

@@ -185,6 +185,11 @@ public class HBaseRPC {
   public static class UnknownProtocolException extends DoNotRetryIOException {
     private Class<?> protocol;
 
+    public UnknownProtocolException(String mesg) {
+      // required for unwrapping from a RemoteException
+      super(mesg);
+    }
+
     public UnknownProtocolException(Class<?> protocol) {
       this(protocol, "Server is not handling protocol "+protocol.getName());
     }