Aleksandr Kovalenko created AMBARI-2934:
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Summary: NameNode HA Wizard: hardening
Key: AMBARI-2934
URL: https://issues.apache.org/jira/browse/AMBARI-2934
Project: Ambari
Issue Type: Task
Components: client
Affects Versions: 1.4.0
Reporter: Aleksandr Kovalenko
Assignee: Aleksandr Kovalenko
Fix For: 1.4.0
Assume that every API call can fail. We need a reliable error handling and
retry mechanism. Upon an API call failure, we let the user retry the last
task that failed.
Page refreshes need to be handled. At any point in time, the user should be
able to hit refresh and not cause adverse affects.
Checkpoint at appropriate points using the "persist" call, so that we know what
API calls have been executed already and we don't call them again.
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