Hi all, I have observed that the MDS Cache Configuration has 18 parameters: mds_cache_memory_limit mds_cache_reservation mds_health_cache_threshold mds_cache_trim_threshold mds_cache_trim_decay_rate mds_recall_max_caps mds_recall_max_decay_threshold mds_recall_max_decay_rate mds_recall_global_max_decay_threshold mds_recall_warning_threshold mds_recall_warning_decay_rate mds_session_cap_acquisition_throttle mds_session_cap_acquisition_decay_rate mds_session_max_caps_throttle_ratio mds_cap_acquisition_throttle_retry_request_timeout mds_session_cache_liveness_magnitude mds_session_cache_liveness_decay_rate mds_max_caps_per_clientI find the Ceph documentation in this section a bit cryptic and I have tried to find some resources that talk about how to tune these parameters, but without success.
Does anyone have experience in adjusting these parameters according to the characteristics of the Ceph cluster itself, the hardware and the use of MDS?
Regards! -- ******************************************************* Andrés Rojas Guerrero Unidad Sistemas Linux Area Arquitectura Tecnológica Secretaría General Adjunta de Informática Consejo Superior de Investigaciones Científicas (CSIC) Pinar 19 28006 - Madrid Tel: +34 915680059 -- Ext. 990059 email: a.rojas@xxxxxxx ID comunicate.csic.es: @50852720l:matrix.csic.es *******************************************************
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