I have this since I am on Nautilus. I did not have this when I was on Luminous and my use of the ceph storage doesn't change that much. I actually had to tune down the use cephfs. https://tracker.ceph.com/issues/45663 https://tracker.ceph.com/issues/44100 -----Original Message----- From: Eugen Block [mailto:eblock@xxxxxx] Sent: woensdag 10 juni 2020 12:13 To: ceph-users@xxxxxxx Subject: Re: ceph mds slow requests Hi, we have this message almost daily, although in our case it's almost expected. We run a nightly compile job within a cephfs subtree and the OSDs (HDD with rocksDB on SSD) are saturated during those jobs. Also the deep-scrubs which also run during the night have a significant impact and the cluster reports slow requests, but since that happens outside our working hours we can live with it (for now). You write the OSDs are on SSDs, is that true for both data and metadata pool? Regards, Eugen Zitat von locallocal <locallocal@xxxxxxx>: > hi,guys. > we have a ceph cluster which version is luminous 12.2.13. and Recently > we encountered a problem.here are some log infomations: > > > 2020-06-08 12:33:52.706070 7f4097e2d700 0 log_channel(cluster) log > [WRN] : slow request 30.518930 seconds old, received at 2020-06-08 > 12:33:22.186924: client_request(client.48978906:941633993 create > #0x100028cab8a/.filename 2020-06-08 12:33:22.197434 caller_uid=0, > caller_gid=0{}) currently submit entry: journal_and_reply ... > 2020-06-08 13:12:17.826727 7f4097e2d700 0 log_channel(cluster) log > [WRN] : slow request 2220.991833 seconds old, received at 2020-06-08 > 12:35:16.764233: client_request(client.42390705:788369155 create > #0x1000224f999/.filename 2020-06-08 12:35:16.774553 caller_uid=0, > caller_gid=0{}) currently submit entry: journal_and_reply > > > it looks like mds can't flush journal to osd of meta pool.but the osd > type is ssd and the load is very low.this problem leads the client > can't mount and the mds can't trim log. > Is there anyone have encountered this problem.Please help! > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an > email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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