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  1. Core Server
  2. SERVER-7200

use oplog as op buffer on secondaries

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    Details

    • Backwards Compatibility:
      Fully Compatible
    • Backport Completed:
    • Epic Link:
    • Sprint:
      Repl 2016-08-29
    • Case:
    • Linked BF Score:
      0

      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.

        Attachments

          Issue Links

          depends on

          Bug - A problem which impairs or prevents the functions of the product. SERVER-19867 Do not read directly from collections in ReplSetTest to get replication optime

          • Major - P3 - Major loss of function.
          • Closed
          is depended on by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-7275 node can't roll back if behind minValid

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-8476 slaveDelay with Ghostsync

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-25160 Drain and catchup modes shouldn't continue on stepdown

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-22061 DataReplicator: Support resume per collection

          • Major - P3 - Major loss of function.
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. SERVER-26570 MongoDB Slave Crashed During Replication

          • Critical - P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-27142 aborting after fassert() failure

          • Critical - P2 - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-23841 Mongod always complain "Fatal assertion 18750 UnrecoverableRollbackError" after mongod abnormal termination

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-25026 Secondary abort immediately following losing Primary election, will not restart

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-26271 UnrecoverableRollbackError after election

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-24725 Hidden Member switched sync source multiple times and then crashes during rollback

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-10751 Keep fetching oplog during index creation of initial resync

          • Major - P3 - Major loss of function.
          • Closed
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-5853 Decouple replication to oplog from application of oplog entries

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-25071 Ensure replication batch finishes before shutdown

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-25697 Rename BatchBoundaries::start to be "begin"

          • Minor - P4 - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-13222 Secondary keeps getting into an inconsistent state

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-24223 Add hash to minvalid OpTime boundaries

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-28688 Deadlock between shutdown and stepdown

          • Major - P3 - Major loss of function.
          • Closed

          Task - A task that needs to be done. SERVER-22774 Update oplog fetcher using logic from BackgroundSync::_fetcherCallback

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-23499 implement a blocking queue that works with task executor events

          • Major - P3 - Major loss of function.
          • Closed

            Activity

              People

              Assignee:
              redbeard0531 Mathias Stearn
              Reporter:
              milkie Eric Milkie
              Participants:
              Votes:
              5 Vote for this issue
              Watchers:
              32 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: