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Ramkumar Vadali commented on MAPREDUCE-1367: -------------------------------------------- @Aaron, Just curious, is this being used in production? If so, could you please outline the use case? > LocalJobRunner should support parallel mapper execution > ------------------------------------------------------- > > Key: MAPREDUCE-1367 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1367 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Reporter: Aaron Kimball > Assignee: Aaron Kimball > Fix For: 0.21.0 > > Attachments: MAPREDUCE-1367.2.patch, MAPREDUCE-1367.3.patch, > MAPREDUCE-1367.4.patch, MAPREDUCE-1367.5.patch, MAPREDUCE-1367.6.patch, > MAPREDUCE-1367.7.patch, MAPREDUCE-1367.patch > > > The LocalJobRunner currently supports only a single execution thread. Given > the prevalence of multi-core CPUs, it makes sense to allow users to run > multiple tasks in parallel for improved performance on small (local-only) > jobs. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.