我安装了hadoop单节点，现在我用start-dfs.sh命令启动集群。
但是jobotracker和tasktracker并没有出现在jps命令中，所以它们似乎没有启动。
你知道为什么吗？ 我安装2.6.2版本...
执行命令start-dfs.sh ，会出现：
[hadoopadmin@hadoop ~]$ start-dfs.sh 16/03/23 12:17:19 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting namenodes on [localhost] localhost: starting namenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-namenode-hadoop.out localhost: starting datanode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-datanode-hadoop.out Starting secondary namenodes [0.0.0.0] 0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-secondarynamenode-hadoop.out 16/03/23 12:17:37 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable [hadoopadmin@hadoop ~]$ jps 2881 DataNode 2758 NameNode 3142 Jps 3039 SecondaryNameNode [hadoopadmin@hadoop ~]$I installed hadoop single node, and now Im starting the cluster with start-dfs.sh command.
But jobotracker and tasktracker are not appearing with jps command, so it seems that they are not starting.
Do you see why? Im installing the version 2.6.2...
After execute the command start-dfs.sh, this appears:
[hadoopadmin@hadoop ~]$ start-dfs.sh 16/03/23 12:17:19 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting namenodes on [localhost] localhost: starting namenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-namenode-hadoop.out localhost: starting datanode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-datanode-hadoop.out Starting secondary namenodes [0.0.0.0] 0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-secondarynamenode-hadoop.out 16/03/23 12:17:37 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable [hadoopadmin@hadoop ~]$ jps 2881 DataNode 2758 NameNode 3142 Jps 3039 SecondaryNameNode [hadoopadmin@hadoop ~]$最满意答案
没有JobTracker和TaskTracker了。 我们有NodeManager和resourceManager。 在这里你刚开始dfs服务没有启动纱线服务，启动纱线服务运行start-yarn.sh然后只有纱线相关服务才会启动。
如果你想启动所有服务运行start-all.sh （不是一个好习惯）
There is no JobTracker and TaskTracker anymore. We have NodeManager and resourceManager. Here you just started dfs services not started yarn services, to start yarn services run start-yarn.sh then only yarn related services will start.
If you want to start all services run start-all.sh (not a good practice)
Hadoop 2.6.2，start-dfs.sh不要启动jobtacker和tasktracker(Hadoop 2.6.2, start-dfs.sh dont start jobtacker and tasktracker)我安装了hadoop单节点，现在我用start-dfs.sh命令启动集群。
但是jobotracker和tasktracker并没有出现在jps命令中，所以它们似乎没有启动。
你知道为什么吗？ 我安装2.6.2版本...
执行命令start-dfs.sh ，会出现：
[hadoopadmin@hadoop ~]$ start-dfs.sh 16/03/23 12:17:19 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting namenodes on [localhost] localhost: starting namenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-namenode-hadoop.out localhost: starting datanode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-datanode-hadoop.out Starting secondary namenodes [0.0.0.0] 0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-secondarynamenode-hadoop.out 16/03/23 12:17:37 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable [hadoopadmin@hadoop ~]$ jps 2881 DataNode 2758 NameNode 3142 Jps 3039 SecondaryNameNode [hadoopadmin@hadoop ~]$I installed hadoop single node, and now Im starting the cluster with start-dfs.sh command.
But jobotracker and tasktracker are not appearing with jps command, so it seems that they are not starting.
Do you see why? Im installing the version 2.6.2...
After execute the command start-dfs.sh, this appears:
[hadoopadmin@hadoop ~]$ start-dfs.sh 16/03/23 12:17:19 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Starting namenodes on [localhost] localhost: starting namenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-namenode-hadoop.out localhost: starting datanode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-datanode-hadoop.out Starting secondary namenodes [0.0.0.0] 0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop-2.6.2/logs/hadoop-hadoopadmin-secondarynamenode-hadoop.out 16/03/23 12:17:37 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable [hadoopadmin@hadoop ~]$ jps 2881 DataNode 2758 NameNode 3142 Jps 3039 SecondaryNameNode [hadoopadmin@hadoop ~]$最满意答案
没有JobTracker和TaskTracker了。 我们有NodeManager和resourceManager。 在这里你刚开始dfs服务没有启动纱线服务，启动纱线服务运行start-yarn.sh然后只有纱线相关服务才会启动。
如果你想启动所有服务运行start-all.sh （不是一个好习惯）
There is no JobTracker and TaskTracker anymore. We have NodeManager and resourceManager. Here you just started dfs services not started yarn services, to start yarn services run start-yarn.sh then only yarn related services will start.
If you want to start all services run start-all.sh (not a good practice)
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