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https://issues.apache.org/jira/browse/HADOOP-6664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12859024#action_12859024
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Chris Douglas commented on HADOOP-6664:
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Sorry for closing the issue prematurely, but I'm still unclear on what this
issue is about. It sounded like you were saying that {{io.sort.factor}} and
{{io.sort.mb}} belong in mapred-default.xml rather than core-default.xml, which
I thought I'd answered by noting that these parameters are also used in
o.a.h.io.SequenceFile (which is in core, not mapred). Given that
{{fs.inmemory.size.mb}} is unused, that it doesn't appear in the default
configs is also correct.
bq. the generated documentation on the site is wrong.
bq. the generated xml files in the src directory are putting variables in the
wrong files.
How? Can you either explain what is "wrong" or post a patch correcting the
error?
> fs.inmemory.size.mb not listed in conf. Cluster setup page gives wrong advice.
> ------------------------------------------------------------------------------
>
> Key: HADOOP-6664
> URL: https://issues.apache.org/jira/browse/HADOOP-6664
> Project: Hadoop Common
> Issue Type: Task
> Components: conf, documentation
> Affects Versions: 0.20.2
> Reporter: Edward Capriolo
>
> http://hadoop.apache.org/common/docs/current/cluster_setup.html
> fs.inmemory.size.mb does not appear in any xml file
> {noformat}
> grep "fs.inmemory.size.mb" ./mapred/mapred-default.xml
> [edw...@ec src]$ grep "fs.inmemory.size.mb" ./hdfs/hdfs-default.xml
> [edw...@ec src]$ grep "fs.inmemory.size.mb" ./core/core-default.xml
> {noformat}
> http://hadoop.apache.org/common/docs/current/cluster_setup.html
> Documentation error:
> Real-World Cluster Configurations
> {noformat}
> conf/core-site.xml io.sort.factor 100 More streams merged at
> once while sorting files.
> conf/core-site.xml io.sort.mb 200 Higher memory-limit while
> sorting data.
> {noformat}
> core --- io.sort.factor -- should be
> mapred
> core --- io.sort.mb -- should be mapred
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