Hi Eugen, I think it does have positive effect on the messages. Cause I get fewer messages than before.
Eugen Block <ebl...@nde.ag> 于2018年8月20日周一 下午9:29写道： > Update: we are getting these messages again. > > So the search continues... > > > Zitat von Eugen Block <ebl...@nde.ag>: > > > Hi, > > > > Depending on your kernel (memory leaks with CephFS) increasing the > > mds_cache_memory_limit could be of help. What is your current > > setting now? > > > > ceph:~ # ceph daemon mds.<MDS> config show | grep mds_cache_memory_limit > > > > We had these messages for months, almost every day. > > It would occur when hourly backup jobs ran and the MDS had to serve > > an additional client (searching the whole CephFS for changes) > > besides the existing CephFS clients. First we updated all clients to > > a more recent kernel version, but the warnings didn't stop. Then we > > doubled the cache size from 2 GB to 4 GB last week and since then I > > haven't seen this warning again (for now). > > > > Try playing with the cache size to find a setting fitting your > > needs, but don't forget to monitor your MDS in case something goes > > wrong. > > > > Regards, > > Eugen > > > > > > Zitat von Wido den Hollander <w...@42on.com>: > > > >> On 08/13/2018 01:22 PM, Zhenshi Zhou wrote: > >>> Hi, > >>> Recently, the cluster runs healthy, but I get warning messages > everyday: > >>> > >> > >> Which version of Ceph? Which version of clients? > >> > >> Can you post: > >> > >> $ ceph versions > >> $ ceph features > >> $ ceph fs status > >> > >> Wido > >> > >>> 2018-08-13 17:39:23.682213 [INF] Cluster is now healthy > >>> 2018-08-13 17:39:23.682144 [INF] Health check cleared: > >>> MDS_CLIENT_RECALL (was: 6 clients failing to respond to cache pressure) > >>> 2018-08-13 17:39:23.052022 [INF] MDS health message cleared (mds.0): > >>> Client docker38:docker failing to respond to cache pressure > >>> 2018-08-13 17:39:23.051979 [INF] MDS health message cleared (mds.0): > >>> Client docker73:docker failing to respond to cache pressure > >>> 2018-08-13 17:39:23.051934 [INF] MDS health message cleared (mds.0): > >>> Client docker74:docker failing to respond to cache pressure > >>> 2018-08-13 17:39:23.051853 [INF] MDS health message cleared (mds.0): > >>> Client docker75:docker failing to respond to cache pressure > >>> 2018-08-13 17:39:23.051815 [INF] MDS health message cleared (mds.0): > >>> Client docker27:docker failing to respond to cache pressure > >>> 2018-08-13 17:39:23.051753 [INF] MDS health message cleared (mds.0): > >>> Client docker27 failing to respond to cache pressure > >>> 2018-08-13 17:38:11.100331 [WRN] Health check update: 6 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:37:39.570014 [WRN] Health check update: 5 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:37:31.099418 [WRN] Health check update: 3 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:36:34.564345 [WRN] Health check update: 1 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:36:27.121891 [WRN] Health check update: 3 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:36:11.967531 [WRN] Health check update: 5 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:35:59.870055 [WRN] Health check update: 6 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:35:47.787323 [WRN] Health check update: 3 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:34:59.435933 [WRN] Health check failed: 1 clients > failing > >>> to respond to cache pressure (MDS_CLIENT_RECALL) > >>> 2018-08-13 17:34:59.045510 [WRN] MDS health message (mds.0): Client > >>> docker75:docker failing to respond to cache pressure > >>> > >>> How can I fix it? > >>> > >>> > >>> _______________________________________________ > >>> ceph-users mailing list > >>> ceph-users@lists.ceph.com > >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >>> > >> _______________________________________________ > >> ceph-users mailing list > >> ceph-users@lists.ceph.com > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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