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https://issues.apache.org/jira/browse/MAPREDUCE-3916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13604519#comment-13604519
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Harsh J commented on MAPREDUCE-3916:
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Hi Suresh,
The patch attached here may have ignored the dotfile. The change can be
properly seen at http://svn.apache.org/viewvc?view=revision&revision=1307413 so
its not a doc-only fix.
> various issues with running yarn proxyserver
> --------------------------------------------
>
> Key: MAPREDUCE-3916
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3916
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2, resourcemanager, webapps
> Affects Versions: 0.23.1, 2.0.0-alpha, 3.0.0
> Reporter: Roman Shaposhnik
> Assignee: Devaraj K
> Priority: Critical
> Labels: mrv2
> Fix For: 2.0.0-alpha
>
> Attachments: MAPREDUCE-3916.patch
>
>
> Seem like yarn proxyserver is not operational when running out of the 0.23.1
> RC2 tarball.
> # Setting yarn.web-proxy.address to match yarn.resourcemanager.address
> doesn't disable the proxyserver (althought not setting yarn.web-proxy.address
> at all correctly disable it and produces a message:
> org.apache.hadoop.yarn.YarnException: yarn.web-proxy.address is not set so
> the proxy will not run). This contradicts the documentation provided for
> yarn.web-proxy.address in yarn-default.xml
> # Setting yarn.web-proxy.address and running the service results in the
> following:
> {noformat}
> $ ./sbin/yarn-daemon.sh start proxyserver
> starting proxyserver, logging to
> /tmp/hadoop-0.23.1/logs/yarn-rvs-proxyserver-ahmed-laptop.out
> /usr/java/64/jdk1.6.0_22/bin/java -Dproc_proxyserver -Xmx1000m
> -Dhadoop.log.dir=/tmp/hadoop-0.23.1/logs
> -Dyarn.log.dir=/tmp/hadoop-0.23.1/logs
> -Dhadoop.log.file=yarn-rvs-proxyserver-ahmed-laptop.log
> -Dyarn.log.file=yarn-rvs-proxyserver-ahmed-laptop.log -Dyarn.home.dir=
> -Dyarn.id.str=rvs -Dhadoop.root.logger=INFO,DRFA -Dyarn.root.logger=INFO,DRFA
> -Djava.library.path=/tmp/hadoop-0.23.1/lib/native
> -Dyarn.policy.file=hadoop-policy.xml -Dhadoop.log.dir=/tmp/hadoop-0.23.1/logs
> -Dyarn.log.dir=/tmp/hadoop-0.23.1/logs
> -Dhadoop.log.file=yarn-rvs-proxyserver-ahmed-laptop.log
> -Dyarn.log.file=yarn-rvs-proxyserver-ahmed-laptop.log
> -Dyarn.home.dir=/tmp/hadoop-0.23.1 -Dhadoop.root.logger=INFO,DRFA
> -Dyarn.root.logger=INFO,DRFA
> -Djava.library.path=/tmp/hadoop-0.23.1/lib/native -classpath
> /tmp/hadoop-0.23.1/etc/hadoop:/tmp/hadoop-0.23.1/etc/hadoop:/tmp/hadoop-0.23.1/etc/hadoop:/tmp/hadoop-0.23.1/share/hadoop/common/lib/*:/tmp/hadoop-0.23.1/share/hadoop/common/*:/tmp/hadoop-0.23.1/share/hadoop/hdfs:/tmp/hadoop-0.23.1/share/hadoop/hdfs/lib/*:/tmp/hadoop-0.23.1/share/hadoop/hdfs/*:/tmp/hadoop-0.23.1/share/hadoop/mapreduce/lib/*:/tmp/hadoop-0.23.1/share/hadoop/mapreduce/*:/tmp/hadoop-0.23.1/share/hadoop/mapreduce/*:/tmp/hadoop-0.23.1/share/hadoop/mapreduce/lib/*
> org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer
> {noformat}
> with the following message found in the logs:
> {noformat}
> 2012-02-24 09:26:31,099 FATAL
> org.apache.hadoop.yarn.server.webproxy.WebAppProxy: Could not start proxy web
> server
> java.io.FileNotFoundException: webapps/proxy not found in CLASSPATH
> at
> org.apache.hadoop.http.HttpServer.getWebAppsPath(HttpServer.java:532)
> at org.apache.hadoop.http.HttpServer.<init>(HttpServer.java:224)
> at org.apache.hadoop.http.HttpServer.<init>(HttpServer.java:164)
> at
> org.apache.hadoop.yarn.server.webproxy.WebAppProxy.start(WebAppProxy.java:85)
> at
> org.apache.hadoop.yarn.service.CompositeService.start(CompositeService.java:68)
> at
> org.apache.hadoop.yarn.server.webproxy.WebAppProxyServer.main(WebAppProxyServer.java:76)
> {noformat}
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