Yaniv Michael Kaul
4c5e102aee
node_exporter: use fewer collectors
Remove unused / less useful collectors by default. While it doesn't seem to reduce memory usage, it may reduce potential performance or security issues in the future.
This is what we are left with (snippet of log when loading node exporter manually with the changed command line):
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:111 level=info msg="Enabled collectors"
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=arp
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=bonding
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=conntrack
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=cpu
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=cpufreq
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=diskstats
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=dmi
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=edac
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=entropy
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=filefd
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=filesystem
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=interrupts
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=loadavg
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=mdadm
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=meminfo
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=netclass
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=netdev
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=netstat
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=nvme
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=os
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=pressure
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=schedstat
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=selinux
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=sockstat
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=softnet
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=stat
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=textfile
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=time
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=timex
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=uname
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=vmstat
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=watchdog
ts=2024-11-03T15:41:06.855Z caller=node_exporter.go:118 level=info collector=xfs
Signed-off-by: Yaniv Kaul <yaniv.kaul@scylladb.com>
Improvement, no need to backport.
Closes scylladb/scylladb#21419