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!
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