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Question:
Aggregation service start
hadoop 2.2.0, I want to view Tracking UI,so I visit http://172.11.12.6:8088/cluster,then I click History of Completed Job,such as follows:
MapReduce Job job_1392601388579_0001
Attempt Number Start Time Node Logs
1 Sun Feb 16 17:44:57 PST 2014 master:8042 logs
Then I click logs,but it failed.
Aggregation is not enabled. Try the nodemanager at master:8994
I guess it must a service don’t start, which command I need to execute under
home/software/hadoop-2.2.0/sbin ? Thanks.
[hadoop node1 sbin]$ ls distribute-exclude.sh start-all.cmd stop-all.sh hadoop-daemon.sh start-all.sh stop-balancer.sh hadoop-daemons.sh start-balancer.sh stop-dfs.cmd hdfs-config.cmd start-dfs.cmd stop-dfs.sh hdfs-config.sh start-dfs.sh stop-secure-dns.sh httpfs.sh start-secure-dns.sh stop-yarn.cmd mr-jobhistory-daemon.sh start-yarn.cmd stop-yarn.sh refresh-namenodes.sh start-yarn.sh yarn-daemon.sh slaves.sh stop-all.cmd yarn-daemons.sh
Answer:
Please set /opt/mapr/hadoop/hadoop-[VERSION]/etc/hadoop/yarn-site.xml:
<property> <name>yarn.log-aggregation-enable</name> <value>true</value> </property>
in yarn-site.xml to enable log aggregation.
restart NodeManager & JobHistoryServer
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