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[MAPREDUCE-2464] NullPointerException is coming in the job tracker when job tracker resends the previous heartbeat response. - MapReduce - [issue]
...Over the network, the heartbeat response sent by Job Tracker to Task Tracker might get lost. When Task Tracker sends the old heart beat again to Job Tracker then Job Tracker finds and ignore...
http://issues.apache.org/jira/browse/MAPREDUCE-2464    Author: Devaraj K, 2011-05-02, 19:13
[MAPREDUCE-2306] It is better to give Job start time instead of JobTracker start time in the JobTracker UI->Home. - MapReduce - [issue]
...In the log details, for each job it is giving JobTracker start time and also In the JobTracker UI->Home it is giving Start time of JobTracker. It is better to give JobId start time instea...
http://issues.apache.org/jira/browse/MAPREDUCE-2306    Author: Devaraj K, 2011-04-09, 06:28
[MAPREDUCE-2387] Potential Resource leak in IOUtils.java - MapReduce - [issue]
...IOUtils.javatry {      copyBytes(in, out, buffSize);    } finally {      if(close) {        out.close(); ...
http://issues.apache.org/jira/browse/MAPREDUCE-2387    Author: Devaraj K, 2011-03-16, 09:51
[MAPREDUCE-2261] Fair Multiple Task Assignment Scheduler (Assigning multiple tasks per heart beat) - MapReduce - [issue]
...     Functionality wise the Fair Multiple Task Assignment Scheduler behaves the same way except the assignment of Tasks. Instead of assigning a single Task per heartbeat, it c...
http://issues.apache.org/jira/browse/MAPREDUCE-2261    Author: Devaraj K, 2011-03-16, 05:13
[MAPREDUCE-2299] In the Job Tracker UI -> task details page, machine and logs links are navigating to page not found error. - MapReduce - [issue]
...1. In the page showing All task attempts-On clicking of machine link is navigating to page not found error.2. In the page showing All task attempts-On clicking of Task logs Link is navigatin...
http://issues.apache.org/jira/browse/MAPREDUCE-2299    Author: Devaraj K, 2011-02-24, 15:53
[MAPREDUCE-2305] The status in the UI can be updated periodically without refreshing the page. - MapReduce - [issue]
...If we want to know the latest information in Job Tracker and Task Trackers, we need to refresh the corresponding pages every time. Instead it can be reloaded (refreshed) periodically....
http://issues.apache.org/jira/browse/MAPREDUCE-2305    Author: Devaraj K, 2011-02-07, 13:47
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