You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-dev@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2010/02/10 12:06:27 UTC
[jira] Created: (MAPREDUCE-1477) Number of free slots on
TaskTracker are calculated differently by JobTracker and TaskTracker
Number of free slots on TaskTracker are calculated differently by JobTracker and TaskTracker
--------------------------------------------------------------------------------------------
Key: MAPREDUCE-1477
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1477
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: jobtracker, tasktracker
Reporter: Amareshwari Sriramadasu
Currently number of free slots of TaskTracker come from different sources on JobTracker and TaskTracker. JobTracker iterates through TaskReports in TaskTrackerStatus and finds out how many slots are free, where as TaskTracker keeps it as a number.
We saw some situations where these values could be different (when bugs like MAPREDUCE-1475 were hit).
To make it a single source, I think TaskTracker should send number of free slots also in the heartbeat.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.