when i start hadoop job tracker and task tracker not working.

I'm working with two computers. master- furkanb@master 192.168.2.135 and slave- detay@slave 192.168.2.250.

xml and hosts files the same on 2 computers.

I have written to the console jps.

JPS

15568 Jps 12126 SecondaryNameNode 11812 NameNode 11934 DataNode 12314 ResourceManager

My host file

/etc/hosts

127.0.0.1 localhost

127.0.1.1 ubuntu.ubuntu-domain ubuntu

192.168.2.135 master

192.168.2.250 slave

core-site.xml

<configuration>

<property>
   <name>fs.default.name</name>
   <value>hdfs://master:54310</value>
</property>

</configuration>

hdfs-site.xml

<configuration>
<property>
   <name>dfs.replication</name>
   <value>2</value>
</property>
</configuration>

mapred-site.xml

<configuration>

<property>
   <name>mapred.job.tracker</name>
   <value>master:54311</value>
</property>

<property>
   <name>mapreduce.framework.name</name>
   <value>yarn</value>
</property>

</configuration>

yarn-site.xml

<configuration>
 <property>
 <name>yarn.nodemanager.aux-services</name>
 <value>mapreduce.shuffle</value>
 </property>
 <property>
 <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
 <value>org.apache.hadoop.mapred.ShuffleHandler</value>
 </property>
</configuration>

Master Machine:

/etc/hadoop/masters furkanb@master

/etc/hadoop/slaves furkanb@master detay@slave

Slave Machine:

/etc/hadoop/slaves localhost

When i write start-all.sh on console :

This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
14/04/09 14:52:58 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Starting namenodes on [master]
master: starting namenode, logging to /usr/local/hadoop-2.3.0/logs/hadoop-furkanb-namenode-master.out
furkanb@master: starting datanode, logging to /usr/local/hadoop-2.3.0/logs/hadoop-furkanb-datanode-master.out
detay@slave: starting datanode, logging to /usr/local/hadoop-2.3.0/logs/hadoop-detay-datanode-slave.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop-2.3.0/logs/hadoop-furkanb-secondarynamenode-master.out
14/04/09 14:53:19 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
starting yarn daemons
starting resourcemanager, logging to /usr/local/hadoop-2.3.0/logs/yarn-furkanb-resourcemanager-master.out
furkanb@master: starting nodemanager, logging to /usr/local/hadoop-2.3.0/logs/yarn-furkanb-nodemanager-master.out
detay@slave: starting nodemanager, logging to /usr/local/hadoop-2.3.0/logs/yarn-detay-nodemanager-slave.out

I can reach localhost:50070 and master:50070. But i can't reach localhost:50030 or master:50030

You are using Yarn not classic mapreduce. You cannot find Jobtracker here. For checking the status of running applications you need to use resource manager's http port. ie 8088

Check out the following URL localhost:8088