[ https://issues.apache.org/jira/browse/MAPREDUCE-66?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Harsh J resolved MAPREDUCE-66. ------------------------------ Resolution: Not A Problem This can be explained by looking at the task logs and the sort outputs. > The local bytes read of Mapper tasks are too high than bytes written > -------------------------------------------------------------------- > > Key: MAPREDUCE-66 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-66 > Project: Hadoop Map/Reduce > Issue Type: Bug > Reporter: Runping Qi > > The local bytes read are 6 times that of local bytes written. > This is very hard to explain. > Here is the relevant counters: > Counters for tip_200810170704_0044_m_000001 > File Systems > Local bytes read 6,684,486,486 > Local bytes written 1,007,113,506 > HDFS bytes read 147,200,700 > Map-Reduce Framework > Map input records 3,588,883 > Map output records 3,588,883 > Map input bytes 147,200,579 > Map output bytes 464,822,403 > Combine input records 0 > Combine output records 0 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira