https://community.cloudera.com/t5/Support-Questions/Unable-to-start-Namenode/m-p/213640#M175564 <P>While trying to start Namenode from Ambari, its failing with the below error:</P><PRE> raise ExecutionFailed(err_msg, code, out, err) resource_management.core.exceptions.ExecutionFailed: Execution of 'ambari-sudo.sh su hdfs -l -s /bin/bash -c 'ulimit -c unlimited ; /usr/hdp/3.0.0.0-1371/hadoop/bin/hdfs --config /usr/hdp/3.0.0.0-1371/hadoop/conf --daemon start namenode'' returned 1. WARNING: HADOOP_NAMENODE_OPTS has been replaced by HDFS_NAMENODE_OPTS. Using value of HADOOP_NAMENODE_OPTS. ERROR: Cannot set priority of namenode process 355 </PRE><P>Does anybody know a solution</P><P>Thanks in advance</P> Fri, 01 Jun 2018 01:16:43 GMT ganne 2018-06-01T01:16:43Z