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  1. Couchbase Server
  2. MB-6934

Displaying XDCR Replication error messages/warnings.


    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 2.0
    • Fix Version/s: 2.0
    • Component/s: UI, XDCR
    • Security Level: Public
    • Labels:
    • Environment:



      With the new error logging code, we now display "recent 10 errors". Added a screenshot at end of email.

      At any point, the last 10 error are displayed on the replication - 10 errors, which may or may not be valid depending upon the current time.

      This issue needs to be addressed at two levels -
      1. Level of error logging - Currently too much information is displayed, which also gives misleading idea on state of replication.
      2. Classification of errors v/s warnings.

      Having lower level information on the ns_logs can help trouble shoot , but having all of that information on the web-console might just confuse and overwhelm end-user IMO.

      XDCR can have an error at any of the following levels

      • xdc vbucket replicators - timing out, checkpoint failures, db_not_found
      • xdc replication manager
      • ns_server level - where it is unable to talk to the other remote cluster and so on.

      With some recent trials on the new code, we see a lot of errors on the level of bucket replicators, say vbucket XXX commit_checkpoint_failure.
      But the replication is continuing as expected. Replication has not failed, but it is continuing minus the above checkpoint failure.

      It might be nicer to classify errors v/s warnings.

      Errors - When finally xdcr has stopped working . No more data is being sent over to the destination.
      Replication will be attempted for X number of times, and is finally given up?

      Warnings - When there are timeouts, but it is a recoverable situation.



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          • Assignee:
            junyi Junyi Xie (Inactive)
            ketaki Ketaki Gangal
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            • Created:

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