Julien Nioche created NUTCH-2177: ------------------------------------ Summary: 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'mapred.job.tracker' is deprecated and has been replaced by 'mapreduce.jobtracker.address', however when running Nutch on EMR mapreduce.jobtracker.address has local as a value.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)