[MAPREDUCE-3916] various issues with running yarn proxyserver

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.23.1, 2.0.0-alpha, 3.0.0-alpha1
• Fix Version/s: 2.0.0-alpha
• Component/s: mrv2, resourcemanager, webapps
• Labels: mrv2
• Target Version/s: 2.0.0-alpha
• Hadoop Flags: Reviewed
• Assignee: Devaraj Kavali
• Reporter: Roman Shaposhnik
• Created: 24/Feb/12 18:22
• Updated: 12/May/16 18:22
• Resolved: 30/Mar/12 13:42

Description

Seem like yarn proxyserver is not operational when running out of the 0.23.1 RC2 tarball.

1. 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

1. Setting yarn.web-proxy.address and running the service results in the following:

$ ./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

with the following message found in the logs:

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)

Issue Links

• is related to: BIGTOP-464 There's currently a commented block in puppet/modules/hadoop/templates/yarn-site.xml that fails to render in some cases