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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