[jira] [Created] (AMBARI-7220) Ambari NN HA wizard cannot detect checkpoint

["Aleksandr Kovalenko (JIRA)" <ji...@apache.org>]

Aleksandr Kovalenko created AMBARI-7220:
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             Summary: Ambari NN HA wizard cannot detect checkpoint
                 Key: AMBARI-7220
                 URL: https://issues.apache.org/jira/browse/AMBARI-7220
             Project: Ambari
          Issue Type: Bug
          Components: ambari-web
    Affects Versions: 1.7.0
            Reporter: Aleksandr Kovalenko
            Assignee: Aleksandr Kovalenko
             Fix For: 1.7.0


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.



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