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  1. Couchbase Server
  2. MB-37681

Handle disconnect during an initial complete DCP stream

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    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.

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        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
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              drigby Dave Rigby
              owend Daniel Owen
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              Dates

                Created:
                Updated:

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