Hi, All dataNode in my cluster failed to start due to below error
notice: /Stage[2]/Hdp-hadoop::Datanode/Hdp-hadoop::Service[datanode]/Exec[delete_pid_before_datanode_start]/returns: executed successfully notice: /Stage[2]/Hdp-hadoop::Datanode/Hdp-hadoop::Service[datanode]/Hdp::Exec[su - tie -c 'export HADOOP_LIBEXEC_DIR=/usr/lib/hadoop/libexec && /usr/lib/hadoop/sbin/hadoop-daemon.sh --config /etc/hadoop/conf start datanode']/Exec[su - tie -c 'export HADOOP_LIBEXEC_DIR=/usr/lib/hadoop/libexec && /usr/lib/hadoop/sbin/hadoop-daemon.sh --config /etc/hadoop/conf start datanode']/returns: starting datanode, logging to /var/log/hadoop/tie/hadoop-tie-datanode-slc01ghq.out notice: /Stage[2]/Hdp-hadoop::Datanode/Hdp-hadoop::Service[datanode]/Hdp::Exec[su - tie -c 'export HADOOP_LIBEXEC_DIR=/usr/lib/hadoop/libexec && /usr/lib/hadoop/sbin/hadoop-daemon.sh --config /etc/hadoop/conf start datanode']/Exec[su - tie -c 'export HADOOP_LIBEXEC_DIR=/usr/lib/hadoop/libexec && /usr/lib/hadoop/sbin/hadoop-daemon.sh --config /etc/hadoop/conf start datanode']/returns: nice: /usr/lib/hadoop-hdfs/bin/hdfs: No such file or directory How this happened? it turned out hadoop-hdfs was not installed, the issue was fixed by yum install hadoop-hdfs -- --Anfernee
