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  1. Couchbase Documentation
  2. DOC-96

Documentation: Clarification around server RAM quota best practice

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Details

    • Improvement
    • Resolution: Won't Fix
    • Minor
    • 3.1.x
    • None
    • admin

    Description

      The sizing[1] and RAM quota[2] documentation should be more clear about the specific best practices around general server RAM quota of no greater than 80% physical RAM per node on nodes with 16GB or more, or no greater than 60% on nodes with less than 16GB.

      Emphasizing that the 20% or 40% remainder of RAM is required for the operating system, file system caches, and so on would be helpful as well.

      Additionally, the RAM quota sub-section of the Memory quota section[3] reads as if it is abruptly cut off or otherwise incomplete:

      --------
      RAM quota

      You will not be able to allocate all your machine RAM to the per_node_ram_quota as there may be other programs running on your machine.
      --------

      1. http://docs.couchbase.com/couchbase-manual-2.5/cb-admin/#couchbase-bestpractice-sizing
      2. http://docs.couchbase.com/couchbase-manual-2.5/cb-admin/#ram-quotas
      3. http://docs.couchbase.com/couchbase-manual-2.5/cb-admin/#memory-quota

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            marija Marija Jovanovic (Inactive)
            bshumate Brian Shumate (Inactive)
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