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0e79b322a9
Export the machine's boot time (the btime line from Linux's /proc/stat) as node_boot_time_seconds, named to match what Prometheus's node exporter uses for the same value. Combined with process_start_unix_time, this can be used to distinguish process restarts from whole node restarts. The value is parsed once per process lifetime, not per scrape, and the metric is only published when a value is available, so non-Linux systems don't export a bogus zero. Updates tailscale/corp#44743 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com> Change-Id: I5f53186b97bb1482bd1a5387c0910b0ae26544ff |
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