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| author | Xiubo Li <xiubli@redhat.com> | 2019-11-26 15:24:22 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2020-01-27 18:53:39 +0300 |
| commit | 5d47648fe95412beffe2089d6d6484adb5ea0f96 (patch) | |
| tree | 11ec28f717549c83a44b4c294ec582bb8ae02d21 /fs/ceph/mds_client.c | |
| parent | 4d7ace02ba5c6ef1f8eeb32a86fef7c528bd7f36 (diff) | |
| download | linux-5d47648fe95412beffe2089d6d6484adb5ea0f96.tar.xz | |
ceph: only choose one MDS who is in up:active state without laggy
Even the MDS is in up:active state, but it also maybe laggy. Here
will skip the laggy MDSs.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs/ceph/mds_client.c')
| -rw-r--r-- | fs/ceph/mds_client.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 69631d145265..1b53aceb54bd 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -974,14 +974,14 @@ static int __choose_mds(struct ceph_mds_client *mdsc, frag.frag, mds, (int)r, frag.ndist); if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >= - CEPH_MDS_STATE_ACTIVE) + CEPH_MDS_STATE_ACTIVE && + !ceph_mdsmap_is_laggy(mdsc->mdsmap, mds)) goto out; } /* since this file/dir wasn't known to be * replicated, then we want to look for the * authoritative mds. */ - mode = USE_AUTH_MDS; if (frag.mds >= 0) { /* choose auth mds */ mds = frag.mds; @@ -989,9 +989,14 @@ static int __choose_mds(struct ceph_mds_client *mdsc, "frag %u mds%d (auth)\n", inode, ceph_vinop(inode), frag.frag, mds); if (ceph_mdsmap_get_state(mdsc->mdsmap, mds) >= - CEPH_MDS_STATE_ACTIVE) - goto out; + CEPH_MDS_STATE_ACTIVE) { + if (mode == USE_ANY_MDS && + !ceph_mdsmap_is_laggy(mdsc->mdsmap, + mds)) + goto out; + } } + mode = USE_AUTH_MDS; } } |