MAPREDUCE-4149. [Rumen] Rumen fails to parse certain counter strings. (ravigummadi via tgraves)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1461289 13f79535-47bb-0310-9956-ffa450edef68

hadoop-mapreduce-project/CHANGES.txt

@@ -104,6 +104,9 @@ Release 2.0.5-beta - UNRELEASED
     MAPREDUCE-4356. [Rumen] Provide access to the method
     ParsedTask.obtainTaskAttempts(). (ravigummadi via tgraves)
 
+    MAPREDUCE-4149. [Rumen] Rumen fails to parse certain counter
+    strings. (ravigummadi via tgraves) 
+
 Release 2.0.4-alpha - UNRELEASED
 
   INCOMPATIBLE CHANGES

hadoop-tools/hadoop-rumen/src/main/java/org/apache/hadoop/tools/rumen/HistoryEventEmitter.java

@@ -80,6 +80,8 @@ abstract class HistoryEventEmitter {
     }
 
     counters = counters.replace("\\.", "\\\\.");
+    counters = counters.replace("\\\\{", "\\{");
+    counters = counters.replace("\\\\}", "\\}");
     counters = counters.replace("\\\\(", "\\(");
     counters = counters.replace("\\\\)", "\\)");
     counters = counters.replace("\\\\[", "\\[");