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Posted to dev@nutch.apache.org by GitBox <gi...@apache.org> on 2020/04/23 10:27:40 UTC

[GitHub] [nutch] sebastian-nagel commented on a change in pull request #279: NUTCH-2501: Take NUTCH_HEAPSIZE into account when crawling using crawl script

sebastian-nagel commented on a change in pull request #279:
URL: https://github.com/apache/nutch/pull/279#discussion_r413699673



##########
File path: src/bin/crawl
##########
@@ -171,6 +175,8 @@ fi
 
 CRAWL_PATH="$1"
 LIMIT="$2"
+JAVA_CHILD_HEAP_MB=`expr "$NUTCH_HEAP_MB" / "$NUM_TASKS"`

Review comment:
       Hi @mfeltscher, this PR is now superceded by #513 - I've decided not to add any new environment variables but to document how the task memory can be set using the existing command-line flags:
   ```
   $> bin/crawl -D mapreduce.map.memory.mb=4608 -D mapreduce.map.java.opts=-Xmx4096m \
         -Dmapreduce.reduce.memory.mb=4608 -Dmapreduce.reduce.java.opts=-Xmx4096m ...
   ```
   Thanks for contribution and the discussion!




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