Hi, We are using rook-ceph with operator 1.10.8 and ceph 17.2.5. we are using ceph filesystem with 4 mds i.e 2 active & 2 standby MDS every 3-4 weeks filesystem is having issue i.e in ceph status we can see below warnings warnings : 2 MDS reports slow requests 2 MDS Behind on Trimming mds.myfs-a(mds.1) : behind on trimming (6378/128) max_segments:128, num_segments: 6378 mds.myfs-c(mds.1): behind on trimming (6560/128) max_segments:128, num_segments: 6560 to fix it, we have to restart all MDS pods one by one. this is happening every 4-5 weeks. We have seen many ceph issues related to it on ceph tracker and many people are suggesting to increase mds_cache_memory_limit currently for our cluster *mds_cache_memory_limit* is set to default 4GB *mds_log_max_segments* is set to default 128 Should we increase *mds_cache_memory_limit* to 8GB from default 4GB or is there any solution to fix this issue permanently? _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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