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  1. Core Server
  2. SERVER-46199

Implement collection cache on top of ReadThroughCache to make it causally consistent

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Details

    • Task
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 4.8.0
    • Sharding
    • Fully Compatible
    • Sharding 2020-07-13, Sharding 2020-06-29, Sharding 2020-07-27, Sharding 2020-08-24, Sharding 2020-09-21
    • 50

    Description

      This task is to implement the Collection cache on top of ReadThroughCache in order to make it causally consistent.

      Ideally databases and collections should ideally be stored in two different cache objects and tracked independently and the retrieval of the Database + Collection combination for the unsharded case should be a syntactic sugar on top of it, rather than the current implementation, which stores them as two hierarchical caches.

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        Issue Links

          causes

          Bug - A problem which impairs or prevents the functions of the product. SERVER-50952 Ensure that cached collection entries with stale-marked shard will be eventually refreshed

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

          Task - A task that needs to be done. SERVER-46154 Make ReadThroughCache be driven by a vector clock

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

          Task - A task that needs to be done. SERVER-48990 Introduce ComparableChunkVersion class

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

          Task - A task that needs to be done. SERVER-49190 Expose a function to iterate over all the entries in the ReadThroughCache

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-50272 Make RoutingTableHistory movable

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

          Task - A task that needs to be done. SERVER-50812 Remove the SetShardVersion command

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

          Task - A task that needs to be done. SERVER-50815 Improve database and collection version formatting on logs

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

          Bug - A problem which impairs or prevents the functions of the product. SERVER-50042 Set shouldBlockBehindCatalogCacheRefresh to false on same thread as when set to true

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

          Task - A task that needs to be done. SERVER-48991 Make CatalogCache causally consistent

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

          Activity

            People

              tommaso.tocci@mongodb.com Tommaso Tocci
              kaloian.manassiev@mongodb.com Kaloian Manassiev
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              Dates

                Created:
                Updated:
                Resolved: