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      See https://jira.mongodb.org/browse/DOCS-2908. In mmapv1 changes are visible before the journal is forced to disk even when j:true is used on the write because this is how mmapv1 behaves. But I assume that MongoDB+WiredTiger does not release row/doc locks until the redo log is written, and if j:true is also set then changes are not visible until they are durable.

      If true, then the docs should be updated and see https://jira.mongodb.org/browse/DOCS-2908 for pointers to the docs for mmapv1.

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            kay.kim@mongodb.com Kay Kim (Inactive)
            mdcallag Mark Callaghan
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              1 year, 14 weeks, 1 day ago