Hello everyone,
I installed hadoop 3.1.1 on 3 virtual machines with VMware on Ubuntu. When I run hdfs namenode -format and start-all.sh then jps works correctly on my master and two slaves nodes. However, with the command hdfs dfsadmin -report, I can see only one live data node (I get the same result when I check on master:50070 or 8088). I tried to disable firewall as follows: ufw disable but it didn't solve the problem. The 3 machines can connect with each other (without passwd) with ping and ssh. I also deleted the hadoop tmp folder with datanode and namenode folders but it didn't work as well. There are also no issues shown in the log files. Do you have any solutions to get three live datanode instead of one? Thanks. You will find attached my configurations files.
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://master:9000/</value>
</property>
<property>
<name>fs.default.FS</name>
<value>hdfs://master:9000/</value>
</property>
</configuration>
hadoop-env.sh
Description: hadoop-env.sh
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file.-->
<configuration>
<property>
<name>dfs.datanode.data.dir</name>
<value>/usr/local/hadoop_tmp/hdfs/datanode</value>
<final>true</final>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/usr/local/hadoop_tmp/hdfs/namenode</value>
<final>true</final>
</property>
<property>
<name>dfs.namenode.http-address</name>
<value>master:50070</value>
</property>
<property>
<name>dfs.replication</name>
<value>3</value>
</property>
</configuration>
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>mapreduce.job.tracker</name>
<value>master:5431</value>
</property>
<property>
<name>mapred.framework.name</name>
<value>yarn</value>
</property>
</configuration>
workers
Description: workers
<?xml version="1.0"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<configuration>
<property>
<name>yarn.resourcemanager.hostname</name>
<value>master</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>master:8025</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>master:8035</value>
</property>
<property>
<name>yarn.resourcemanager.address</name>
<value>master:8050</value>
</property>
</configuration>
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