[MAPREDUCE-6777] Typos in 4 log messages

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha2
• Labels: newbie
• Hadoop Flags: Reviewed
• Assignee: Mehran Hassani
• Reporter: Mehran Hassani
• Created: 13/Sep/16 14:58
• Updated: 17/Sep/16 05:23
• Resolved: 17/Sep/16 04:52

Description

I am conducting research on log related bugs. I tried to make a tool to fix repetitive yet simple patterns of bugs that are related to logs. Typos in log messages are one of the reoccurring bugs. Therefore, I made a tool find typos in log statements. During my experiments, I managed to find the following typos in Hadoop MapReduce:

In file /hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/TaskAttemptListenerImpl.java, LOG.info("Done acknowledgement from " + taskAttemptID.toString()),
acknowledgement should be acknowledgment

In file /hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/jobhistory/JobHistoryEventHandler.java, LOG.info("Exception while cancelling delayed flush timer. "+ "Likely caused by a failed flush " + e.getMessage()),
cancelling should be canceling

In file /hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/Task.java, LOG.info("Runnning cleanup for the task"),
Runnning should be Running

In file /hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle/src/main/java/org/apache/hadoop/mapred/ShuffleHandler.java, LOG.info("Storing state DB schedma version info " + getCurrentVersion()),
schedma should be schema