In "ceph health detail", what's the diff between MDS_SLOW_METADATA_IO and MDS_SLOW_REQUEST?
*$ *ceph health detail HEALTH_WARN 1 MDSs report slow metadata IOs; 1 MDSs report slow requests MDS_SLOW_METADATA_IO 1 MDSs report slow metadata IOs mds.fs-01(mds.0): 3 slow metadata IOs are blocked > 30 secs, oldest blocked for 51123 secs MDS_SLOW_REQUEST 1 MDSs report slow requests mds.fs-01(mds.0): 5 slow requests are blocked > 30 secs Do these two refer to cephfs metadata IO?
Hello, On Mon, Jun 21, 2021 at 8:54 AM opengers <zijian1012@gmail.com> wrote:
*$ *ceph health detail HEALTH_WARN 1 MDSs report slow metadata IOs; 1 MDSs report slow requests MDS_SLOW_METADATA_IO 1 MDSs report slow metadata IOs mds.fs-01(mds.0): 3 slow metadata IOs are blocked > 30 secs, oldest blocked for 51123 secs MDS_SLOW_REQUEST 1 MDSs report slow requests
MDS_SLOW_REQUEST: RPCs from the client to the MDS are "slow", i.e. not complete in less than 30 seconds. MDS_SLOW_METADATA_IO: OSD operations by the MDS are not yet complete after 30 seconds. -- Patrick Donnelly, Ph.D. He / Him / His Principal Software Engineer Red Hat Sunnyvale, CA GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
participants (2)
-
opengers
-
Patrick Donnelly