Uploaded image for project: 'Couchbase Server'
  1. Couchbase Server
  2. MB-37681

Handle disconnect during an initial complete DCP stream

    XMLWordPrintable

Details

    Description

      Problem

      Currently it is not possible to continue on after a disconnect if the client is behind the purge seqno.  This situation is common in flaky network environments, such as WAN, links, and effects the feasibility of collecting a full backup from a large data source.

      This issue is expected to be hit when backing-up to cloud.

      A possible solution is to keep the file handles open after a disconnect for a short / configurable period of time.  Then if the client re-connects with the same DCP stream and details (e.g. end snapshot) the stream can continue where it left of, using the old file handle.

      Attachments

        Issue Links

          relates to

          Improvement - An improvement or enhancement to an existing feature or task. MB-27800 Do not indicate rollback if purger has not run between successive DCP stream requests from a particular client

          • Critical - Crashes, loss of data, severe memory leak.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. MB-37680 Order DCP streams when streaming from multiple VB

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-43845 cbbackupmgr: lots of failed attempts

          • Major - Major loss of function.
          • Closed
          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

              owend Daniel Owen
              owend Daniel Owen
              Votes:
              0 Vote for this issue
              Watchers:
              8 Start watching this issue

              Dates

                Created:
                Updated:

                Gerrit Reviews

                  There are no open Gerrit changes

                  PagerDuty