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  1. Core Server
  2. SERVER-7200

use oplog as op buffer on secondaries

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    • Fully Compatible
    • Repl 2016-08-29
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    Description

      Currently, we use an in-memory queue to buffer operations between the network reader and the op writer. Instead, we could simply use the local.oplog collection as the buffer.

      Added advantage: we'll know what operations in the batch were actively being applied if we crash in the middle of a batch.

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              mathias@mongodb.com Mathias Stearn
              milkie@mongodb.com Eric Milkie
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