Add mapred.tasktracker.tasks.maximum to limit the total number of map and reduce tasks --------------------------------------------------------------------------------------
Key: HADOOP-6749 URL: https://issues.apache.org/jira/browse/HADOOP-6749 Project: Hadoop Common Issue Type: New Feature Components: conf Affects Versions: 0.20.2 Reporter: Ted Yu We have mapred.tasktracker.map.tasks.maximum and mapred.tasktracker.reduce.tasks.maximum now. It is desirable to have mapred.tasktracker.tasks.maximum which limits the total number of map and reduce tasks. Meaning its value may be lower than (mapred.tasktracker.map.tasks.maximum + mapred.tasktracker.reduce.tasks.maximum) This would be useful in a cluster whose nodes are multi-core. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.