Lochnair-Labs/sqm-autorate-rust
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fix(observability): ensure all metric outputs are newline-terminated

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Append trailing newlines to metric string formats to ensure consistent parsing and record separation by monitoring backends.
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Nils Andreas Svee committed 2026-04-13 15:43:09 +07:00
1 parent 757a715a54
commit 72b4bc8dab
1 file changed
+4 -4
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src/metrics.rs
+4 -4
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@@ -205,7 +205,7 @@ impl Metrics {
timestamp_ns,
} => format!(
"sqm_ping,host={host_tag},reflector={reflector},type={measurement_type} \
rtt={rtt:.3},up_time={up_time:.3},down_time={down_time:.3} {timestamp_ns}i"
rtt={rtt:.3},up_time={up_time:.3},down_time={down_time:.3} {timestamp_ns}i\n"
),
Metric::Rate {
dl_rate,
@@ -219,7 +219,7 @@ impl Metrics {
"sqm_rate,host={host_tag},direction=download \
rate_kbps={dl:.0},load={rx_load:.4},delta_delay={delta_delay_down:.3} {timestamp_ns}i\n\
sqm_rate,host={host_tag},direction=upload \
rate_kbps={ul:.0},load={tx_load:.4},delta_delay={delta_delay_up:.3} {timestamp_ns}i",
rate_kbps={ul:.0},load={tx_load:.4},delta_delay={delta_delay_up:.3} {timestamp_ns}i\n",
dl = dl_rate,
ul = ul_rate,
),
@@ -232,7 +232,7 @@ impl Metrics {
timestamp_ns,
} => format!(
"sqm_baseline,host={host_tag},reflector={reflector},direction=up baseline_ewma={baseline_up_ewma:.3},recent_ewma={recent_up_ewma:.3} {timestamp_ns}i\n
sqm_baseline,host={host_tag},reflector={reflector},direction=down baseline_ewma={baseline_down_ewma:.3},recent_ewma={recent_down_ewma:.3} {timestamp_ns}i"
sqm_baseline,host={host_tag},reflector={reflector},direction=down baseline_ewma={baseline_down_ewma:.3},recent_ewma={recent_down_ewma:.3} {timestamp_ns}i\n"
),
Metric::Event {
name,
@@ -249,7 +249,7 @@ impl Metrics {
if !reason.is_empty() {
write!(tags, ",reason={reason}").unwrap_or(());
}
format!("sqm_event,{tags} count=1i {timestamp_ns}")
format!("sqm_event,{tags} count=1i {timestamp_ns}\n")
},
}
}