What does the RHCS tunable "rgw_cache_lru_size" denote?

Solution In Progress - Updated -


  • Red Hat Ceph Storage 1.2.3

  • Red Hat Ceph Storage 1.3


  • What does the RHCS tunable "rgw_cache_lru_size" refer to?

  • This tunable is by default set to '10000'.


  • RGW caching is enabled by default on the RGW node.

  • The tunable "rgw_cache_lru_size" is set to a value of 10,000. This value denotes the number of metadata objects that can be stored in the cache.

  • The RGW cache consists of user info, bucket info etc..

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