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Add a collector for DRBD.

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This collector exposes most of the useful information that can be found
in /proc/drbd. Sizes are normalised to be in bytes, as /proc/drbd uses
kibibytes.
This commit is contained in:
Ed Schouten 2016-12-05 11:37:35 +01:00
commit 6269f7502a
5 changed files with 265 additions and 0 deletions
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47
collector/fixtures/e2e-output.txt
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@ -375,6 +375,53 @@ node_disk_writes_merged{device="nvme0n1"} 43950
node_disk_writes_merged{device="sda"} 1.1134226e+07
node_disk_writes_merged{device="sr0"} 0
node_disk_writes_merged{device="vda"} 2.0711856e+07
# HELP node_drbd_activitylog_writes Number of updates of the activity log area of the meta data.
# TYPE node_drbd_activitylog_writes counter
node_drbd_activitylog_writes{device="drbd1"} 1100
# HELP node_drbd_application_pending Number of block I/O requests forwarded to DRBD, but not yet answered by DRBD.
# TYPE node_drbd_application_pending gauge
node_drbd_application_pending{device="drbd1"} 12348
# HELP node_drbd_bitmap_writes Number of updates of the bitmap area of the meta data.
# TYPE node_drbd_bitmap_writes counter
node_drbd_bitmap_writes{device="drbd1"} 221
# HELP node_drbd_connected Whether DRBD is connected to the partner.
# TYPE node_drbd_connected gauge
node_drbd_connected{device="drbd1"} 1
# HELP node_drbd_disk_read_bytes Net data read from local hard disk.
# TYPE node_drbd_disk_read_bytes counter
node_drbd_disk_read_bytes{device="drbd1"} 1.2154539008e+11
# HELP node_drbd_disk_state_is_up_to_date Whether the disk of the node is up to date.
# TYPE node_drbd_disk_state_is_up_to_date gauge
node_drbd_disk_state_is_up_to_date{device="drbd1",node="local"} 1
node_drbd_disk_state_is_up_to_date{device="drbd1",node="remote"} 1
# HELP node_drbd_disk_written_bytes Net data written on local hard disk.
# TYPE node_drbd_disk_written_bytes counter
node_drbd_disk_written_bytes{device="drbd1"} 2.8941845504e+10
# HELP node_drbd_epochs Number of Epochs currently on the fly.
# TYPE node_drbd_epochs gauge
node_drbd_epochs{device="drbd1"} 1
# HELP node_drbd_local_pending Number of open requests to the local I/O sub-system.
# TYPE node_drbd_local_pending gauge
node_drbd_local_pending{device="drbd1"} 12345
# HELP node_drbd_network_received_bytes Volume of net data received by the partner via the network connection.
# TYPE node_drbd_network_received_bytes counter
node_drbd_network_received_bytes{device="drbd1"} 1.0961011e+07
# HELP node_drbd_network_sent_bytes Volume of net data sent to the partner via the network connection.
# TYPE node_drbd_network_sent_bytes counter
node_drbd_network_sent_bytes{device="drbd1"} 1.7740228608e+10
# HELP node_drbd_node_role_is_primary Whether the role of the node is in the primary state.
# TYPE node_drbd_node_role_is_primary gauge
node_drbd_node_role_is_primary{device="drbd1",node="local"} 1
node_drbd_node_role_is_primary{device="drbd1",node="remote"} 1
# HELP node_drbd_out_of_sync_bytes Amount of data known to be out of sync.
# TYPE node_drbd_out_of_sync_bytes gauge
node_drbd_out_of_sync_bytes{device="drbd1"} 1.2645376e+07
# HELP node_drbd_remote_pending Number of requests sent to the partner, but that have not yet been answered by the latter.
# TYPE node_drbd_remote_pending gauge
node_drbd_remote_pending{device="drbd1"} 12346
# HELP node_drbd_remote_unacknowledged Number of requests received by the partner via the network connection, but that have not yet been answered.
# TYPE node_drbd_remote_unacknowledged gauge
node_drbd_remote_unacknowledged{device="drbd1"} 12347
# HELP node_entropy_available_bits Bits of available entropy.
# TYPE node_entropy_available_bits gauge
node_entropy_available_bits 1337