rook-ceph-exporter usage i would like to know

[vadlakiran]

i have deployed the latest version of rook-ceph i.e, v1.14.4 and ceph is v18.2.2 and kubernetes version is v1.28.6

i can see the exporter pods of respective worker node, what is the use of those pods and i to remove those pods in cluster.yaml.

kubectl get pods -n rook-ceph
NAME READY STATUS RESTARTS AGE
csi-cephfsplugin-gzr8w 2/2 Running 0 116s
csi-cephfsplugin-mlgjn 2/2 Running 0 116s
csi-cephfsplugin-provisioner-76b7548bfb-kdgr6 5/5 Running 0 116s
csi-cephfsplugin-provisioner-76b7548bfb-p667z 5/5 Running 0 116s
csi-cephfsplugin-xhnwc 2/2 Running 0 116s
csi-rbdplugin-8955t 2/2 Running 0 116s
csi-rbdplugin-krlbq 2/2 Running 0 116s
csi-rbdplugin-provisioner-7bfcc8659c-v58bl 5/5 Running 0 116s
csi-rbdplugin-provisioner-7bfcc8659c-z5gsl 5/5 Running 0 116s
csi-rbdplugin-t4qwr 2/2 Running 0 116s
rook-ceph-crashcollector-worker1-78b6dffbd9-ckhmc 1/1 Running 0 42s
rook-ceph-crashcollector-worker2-f457d766-gstt7 1/1 Running 0 27s
rook-ceph-crashcollector-worker3-56dc7676c-f6f2x 1/1 Running 0 24s
rook-ceph-exporter-worker1-7dbf7897bb-9x6j8 1/1 Running 0 42s
rook-ceph-exporter-worker2-75bc5c5b4f-dsgk6 1/1 Running 0 22s
rook-ceph-exporter-worker3-858b9c4b7b-xp599 1/1 Running 0 20s
rook-ceph-mgr-a-5fd6d7969b-tdbr4 3/3 Running 0 60s
rook-ceph-mgr-b-545f7b87c7-hlmhj 3/3 Running 0 60s
rook-ceph-mon-a-77757fc8dd-h6vtc 2/2 Running 0 107s
rook-ceph-mon-b-56b56d665b-vjp8z 2/2 Running 0 83s
rook-ceph-mon-c-c84669b49-l4w5r 2/2 Running 0 72s
rook-ceph-operator-f6f8c9d56-qkwg7 1/1 Running 0 14h
rook-ceph-osd-0-789796cdf6-hmqg4 2/2 Running 0 27s
rook-ceph-osd-1-746d89845b-2zm97 2/2 Running 0 26s
rook-ceph-osd-2-cb84dd78f-d7kx8 1/2 Running 0 25s
rook-ceph-osd-prepare-worker1-ggfrv 0/1 Completed 0 38s
rook-ceph-osd-prepare-worker2-tntp5 0/1 Completed 0 37s
rook-ceph-osd-prepare-worker3-pcp8z 0/1 Completed 0 36s

[parth-gr]

@vadlakiran Ceph exporter was created to avoid performance problems at scale obtaining metrics in clusters with high number of daemons (mainly OSDs).
https://github.com/rook/rook/blob/master/design/ceph/ceph-exporter.md

[vadlakiran]

@parth-gr Thank you for details, if i don't want to enable this, where i have to mention in cluster.yml ?

[parth-gr]

@vadlakiran here is the setting for it https://github.com/rook/rook/blob/master/deploy/examples/cluster.yaml#L87