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ceph: only send metrics when the MDS rank is ready

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When the MDS rank is in clientreplay state, the metrics requests
will be discarded directly. Also, when there are a lot of known
client requests to recover from, the metrics requests will slow
down the MDS rank from getting to the active state sooner.

With this patch, we will send the metrics requests only when the
MDS rank is in active state.

Link: https://tracker.ceph.com/issues/61524
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Milind Changire <mchangir@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Xiubo Li 2023-05-31 16:06:55 +08:00 committed by Ilya Dryomov
parent 6995e2de68
commit f7c2f4f6ce
1 changed files with 8 additions and 0 deletions
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8
fs/ceph/metric.c
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@ -36,6 +36,14 @@ static bool ceph_mdsc_send_metrics(struct ceph_mds_client *mdsc,
s32 items = 0;
s32 len;
/* Do not send the metrics until the MDS rank is ready */
mutex_lock(&mdsc->mutex);
if (ceph_mdsmap_get_state(mdsc->mdsmap, s->s_mds) != CEPH_MDS_STATE_ACTIVE) {
mutex_unlock(&mdsc->mutex);
return false;
}
mutex_unlock(&mdsc->mutex);
len = sizeof(*head) + sizeof(*cap) + sizeof(*read) + sizeof(*write)
+ sizeof(*meta) + sizeof(*dlease) + sizeof(*files)
+ sizeof(*icaps) + sizeof(*inodes) + sizeof(*rsize)