ambari java.io.IOException: Cannot lock storage /nn/dfs/. The directory is already locked

[#1]

Not able to start namenode on ha enabled cluster

[#2]

Not able to start both namenodes at a time . Id one node is active other doesnt start. this is wat i found in logs

ambari java.io.IOException: Cannot lock storage /nn/dfs/. The directory is already locked

[#3 · Accepted solution]

@chennuri gouri shankar

check - https://issues.apache.org/jira/browse/HDFS-2865