[ https://issues.apache.org/jira/browse/NUTCH-2177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15033491#comment-15033491 ]
Julien Nioche edited comment on NUTCH-2177 at 12/1/15 11:43 AM: ---------------------------------------------------------------- Do you mean 'mapreduce.framework.name' ? Should work indeed - here are the values I am getting on EMR 15/12/01 11:02:00 INFO crawl.Generator: mapred.job.tracker local 15/12/01 11:02:00 INFO crawl.Generator: mapreduce.jobtracker.address local 15/12/01 11:02:00 INFO crawl.Generator: mapreduce.framework.name yarn where in local mode I get 2015-12-01 11:42:16,622 INFO crawl.Generator - mapred.job.tracker local 2015-12-01 11:42:16,622 INFO crawl.Generator - mapreduce.jobtracker.address local 2015-12-01 11:42:16,622 INFO crawl.Generator - mapreduce.framework.name local Will send a patch shortly was (Author: jnioche): Do you mean 'mapreduce.framework.name' ? > Generator produces only one partition even in distributed mode > -------------------------------------------------------------- > > Key: NUTCH-2177 > URL: https://issues.apache.org/jira/browse/NUTCH-2177 > Project: Nutch > Issue Type: Bug > Components: generator > Reporter: Julien Nioche > Priority: Blocker > Fix For: 1.11 > > > See > [https://github.com/apache/nutch/blob/trunk/src/java/org/apache/nutch/crawl/Generator.java#L542] > 'mapred.job.tracker' is deprecated and has been replaced by > 'mapreduce.jobtracker.address', however when running Nutch on EMR > mapreduce.jobtracker.address has local as a value. As a result we generate a > single partition i.e. have a single map fetching later on (which defeats the > object of having a distributed crawler). > We should probably detect whether we are running on YARN instead, see > [http://stackoverflow.com/questions/29680155/why-there-is-a-mapreduce-jobtracker-address-configuration-on-yarn] -- This message was sent by Atlassian JIRA (v6.3.4#6332)