@Geoffrey Shelton Okot
Hello Community,
I cant solve the problem of connections between hosts caused by Errno:111 !!
My :
- hostname is right,
- iptables is stoped,
- selinux is stoped.
Here is the log of starting the name node of my cluster.
- Mysafemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused 2019-06-07 10:07:14,531 - Retrying after 10 seconds. Reason: Execution of '/usr/hdp/current/hadoop-hdfs-namenode/bin/hdfs dfsadmin -fs hdfs://node4.rh.bigdata.cluster:8020 -safemode get | grep 'Safe mode is OFF'' returned 1. safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused 2019-06-07 10:07:32,086 - Retrying after 10 seconds. Reason: Execution of '/usr/hdp/current/hadoop-hdfs-namenode/bin/hdfs dfsadmin -fs hdfs://node4.rh.bigdata.cluster:8020 -safemode get | grep 'Safe mode is OFF'' returned 1. safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused 2019-06-07 10:07:48,653 - Retrying after 10 seconds. Reason: Execution of '/usr/hdp/current/hadoop-hdfs-namenode/bin/hdfs dfsadmin -fs hdfs://node4.rh.bigdata.cluster:8020 -safemode get | grep 'Safe mode is OFF'' returned 1. safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused 2019-06-07 10:08:06,283 - Retrying after 10 seconds. Reason: Execution of '/usr/hdp/current/hadoop-hdfs-namenode/bin/hdfs dfsadmin -fs hdfs://node4.rh.bigdata.cluster:8020 -safemode get | grep 'Safe mode is OFF'' returned 1. safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused 2019-06-07 10:08:22,948 - Retrying after 10 seconds. Reason: Execution of '/usr/hdp/current/hadoop-hdfs-namenode/bin/hdfs dfsadmin -fs hdfs://node4.rh.bigdata.cluster:8020 -safemode get | grep 'Safe mode is OFF'' returned 1. safemode: Call From node4.rh.bigdata.cluster/172.16.138.113 to node4.rh.bigdata.cluster:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefuse