PROBLEM: When enabling Namenode High Availability in Ambari, at the first step :"run "su -l hdfs -c 'hdfs dfsadmin -safemode enter'"
run "su -l hdfs -c 'hdfs dfsadmin -saveNamespace'" "
Ambari cannot detect the checkpoint has been created and would not allow user to go to next step.
BUSINESS IMPACT: This bug is preventing customer to enable High Availability and customer is not able to avoid the single point of failure of their business.
ACTUAL BEHAVIOR: The "Next Step" button is not available and user cannot go to next step.
EXPECTED BEHAVIOR: After creating checkpoint, Ambari should detect the checkpoint and allow user to proceed to the next step.
SUPPORT ANALYSIS: A possible workaround would be copy the link of checking checkpoint status, and access this link through a different browser.
The customer use the following steps as a workaround:
After leaving safe mode manually, then refreshing Ambari and starting wizard again, it say "Checkpoint created" even before entering safe mode again.