My cluster looks like: Node1 - NameNode + ResourceManager Node2 - SecondaryNameNode Node3 - DataNode (+NodeManager) Node4 - DataNode (+NodeManager) Node5 - DataNode (+NodeManager)
http://node1:8088/cluster works. My problems: > SecondaryNamenode WebUI: http://node2:50090 doesn't work (ERR_EMPTY_RESPONSE). > Datanode WebUI: http://node3:50075 looks like there is something wrong: > https://i.imgur.com/dbTxtkS.png > Also I'm missing the JobHistory Server. Isn't the jobhistory server included > in yarn? I tried accessing some URLs I found on the web declared as "default > configuration" and always (ERR_EMPTY_RESPONSE). > When I run a mapreduce job the output still says: "uri to track the job is > httpd://localhost:8080" and when I try to access any node on this port I get > no data (ERR_EMPTY_RESPONSE). Unfortunately I couldn't get this problem solved. I only found a few guides setting yarn up. I tried them all and my situation only got worse when adding more properties on yarn-site.xml. E.g. the cluster overview-WebUI http://node1:8088/cluster didn't worked anymore when adding "yarn.resourcemanager.webapp.address" to yarn-site.xml. Can anyone help me out configuring yarn correctly please? My configuration: core-site.xml <?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <property> <name>hadoop.tmp.dir</name> <value>file:///hdfs/tmp</value> </property> <property> <name>fs.defaultFS</name> <value>hdfs://node1:54310</value> </property> </configuration> hdfs-site.xml <?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <configuration> <!-- NameNode configuration --> <property> <name>dfs.namenode.name.dir</name> <value>file:///hdfs/name</value> </property> <property> <name>dfs.namenode.http-address</name> <value>node1:50070</value> </property> <property> <name>dfs.namenode.checkpoint.dir</name> <value>file:///hdfs/checkpoint</value> </property> <!-- SecondaryNameNode configuration --> <property> <name>dfs.namenode.secondary.http-address</name> <value>node2:50090</value> </property> <!-- DataNode configuration --> <property> <name>dfs.datanode.data.dir</name> <value>file:///hdfs/data</value> </property> </configuration> yarn-site.xml <?xml version="1.0"?> <configuration> <!-- Site specific YARN configuration properties --> <!-- RessourceManager configuration --> <property> <name>yarn.resourcemanager.hostname</name> <value>node1</value> </property> <property> <name>yarn.resourcemanager.resource-tracker.address</name> <value>node1:8031</value> </property> <property> <name>yarn.resourcemanager.scheduler.address</name> <value>node1:8030</value> </property> <property> <name>yarn.resourcemanager.address</name> <value>node1:8032</value> </property> </configuration> masters node2 slaves node3 node4 node5
