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  1. Couchbase Server
  2. MB-62638

XDCR - XMEM mechanism to pre-emptively get doc in anticipation of conflict

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      It may be more performant to actually get the document as part of the HLV/meta GET in anticipation that the document will cause a conflict and needs to be logged.

      The first phase is to be able to perform the actual GET on the document itself as part of the HLV get.

      The second phase is to have a mechanism to switch between HLV get and document get on the fly based on the conflict rate. It is noted that conflict rate is a stats that oversees the whole pipeline/replication. However, it is maybe good enough to just have a conflict rate stat internally inside a XMEM nozzle and work off of that.

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            sumukh.bhat Sumukh Bhat
            neil.huang Neil Huang
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