This is a Prometheus exporter that, when running on a node, checks the status of that node's DRBD volumes.
To build the deb file:
debuild -b -uc -us
To build the binary:
make
CGO_ENABLED=0 go build
To build the Docker container:
CGO_ENABLED=0 make GOLDFLAGS="-w -linkmode external -extldflags -static" && docker build .
Command-line options:
Usage of drbd9_exporter:
-web.listen-address string
Address on which to expose metrics and web interface (default ":9481")
-web.telemetry-path string
Path under which to expose metrics. (default "/metrics")
This exporter assummes that you are running DRBD 9.0 and have the debugfs mounted, most distros do, but if you don't then you can manually mount the debugfs by doing:
mount -t debugfs nodev /sys/kernel/debug
# HELP drbd_activitylog_writes Number of updates of the activity log area of the meta data.
# TYPE drbd_activitylog_writes gauge
drbd_activitylog_writes{connection="n2",id="0",resource="r0"} 0
drbd_activitylog_writes{connection="n3",id="0",resource="r0"} 0
# HELP drbd_bitmap_writes Number of updates of the bitmap area of the meta data.
# TYPE drbd_bitmap_writes gauge
drbd_bitmap_writes{connection="n2",id="0",resource="r0"} 0
drbd_bitmap_writes{connection="n3",id="0",resource="r0"} 0
# HELP drbd_connection_established a
# TYPE drbd_connection_established gauge
drbd_connection_established{connection="n2",id="0",resource="r0"} 1
drbd_connection_established{connection="n3",id="0",resource="r0"} 1
# HELP drbd_connection_unhealthy a
# TYPE drbd_connection_unhealthy gauge
drbd_connection_unhealthy{connection="n2",id="0",resource="r0"} 0
drbd_connection_unhealthy{connection="n3",id="0",resource="r0"} 0
# HELP drbd_disk_read_bytes Net data read from local hard disk.
# TYPE drbd_disk_read_bytes gauge
drbd_disk_read_bytes{connection="n2",id="0",resource="r0"} 262056
drbd_disk_read_bytes{connection="n3",id="0",resource="r0"} 262056
# HELP drbd_disk_written_bytes Net data written on local hard disk.
# TYPE drbd_disk_written_bytes gauge
drbd_disk_written_bytes{connection="n2",id="0",resource="r0"} 0
drbd_disk_written_bytes{connection="n3",id="0",resource="r0"} 0
# HELP drbd_epochs Number of Epochs currently on the fly.
# TYPE drbd_epochs gauge
drbd_epochs{connection="n2",id="0",resource="r0"} 1
drbd_epochs{connection="n3",id="0",resource="r0"} 1
# HELP drbd_local_disk_up_to_date a
# TYPE drbd_local_disk_up_to_date gauge
drbd_local_disk_up_to_date{connection="n2",id="0",resource="r0"} 1
drbd_local_disk_up_to_date{connection="n3",id="0",resource="r0"} 1
# HELP drbd_local_pending Number of open requests to the local I/O sub-system.
# TYPE drbd_local_pending gauge
drbd_local_pending{connection="n2",id="0",resource="r0"} 0
drbd_local_pending{connection="n3",id="0",resource="r0"} 0
# HELP drbd_network_received_bytes Volume of net data received by the partner via the network connection.
# TYPE drbd_network_received_bytes gauge
drbd_network_received_bytes{connection="n2",id="0",resource="r0"} 0
drbd_network_received_bytes{connection="n3",id="0",resource="r0"} 0
# HELP drbd_network_sent_bytes Volume of net data sent to the partner via the network connection.
# TYPE drbd_network_sent_bytes gauge
drbd_network_sent_bytes{connection="n2",id="0",resource="r0"} 131028
drbd_network_sent_bytes{connection="n3",id="0",resource="r0"} 131028
# HELP drbd_out_of_sync_bytes Amount of data known to be out of sync.
# TYPE drbd_out_of_sync_bytes gauge
drbd_out_of_sync_bytes{connection="n2",id="0",resource="r0"} 0
drbd_out_of_sync_bytes{connection="n3",id="0",resource="r0"} 0
# HELP drbd_remote_unacknowledged Number of requests received by the partner via the network connection, but that have not yet been answered.
# TYPE drbd_remote_unacknowledged gauge
drbd_remote_unacknowledged{connection="n2",id="0",resource="r0"} 0
drbd_remote_unacknowledged{connection="n3",id="0",resource="r0"} 0