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fix(server): log canceled relay requests at debug level #32215

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fix(server): log canceled relay requests at debug level #32215

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15 changes: 15 additions & 0 deletions apps/server/src/cloud/ManagedEndpointRuntime.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -178,6 +178,21 @@ describe("CloudManagedEndpointRuntime", () => {
expect(
ManagedEndpointRuntime.classifyRelayClientOutput("2026-06-17T02:00:00Z PNC runtime panic"),
).toBe("warning");
for (const prefix of ["", "Request failed "]) {
expect(
ManagedEndpointRuntime.classifyRelayClientOutput(
`2026-06-17T02:00:00Z ERR ${prefix}error="Incoming request ended abruptly: context canceled" connIndex=0`,
),
).toBe("debug");
}
for (const line of [
'2026-06-17T02:00:00Z ERR error="Incoming request ended abruptly: context deadline exceeded" connIndex=0',
'2026-06-17T02:00:00Z ERR Failed to serve tunnel connection error="context canceled"',
'2026-06-17T02:00:00Z FTL error="Incoming request ended abruptly: context canceled"',
'2026-06-17T02:00:00Z PNC error="Incoming request ended abruptly: context canceled"',
]) {
expect(ManagedEndpointRuntime.classifyRelayClientOutput(line)).toBe("warning");
}
});

it("classifies connection unregistration apart from registration and routine output", () => {
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7 changes: 7 additions & 0 deletions apps/server/src/cloud/ManagedEndpointRuntime.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,13 @@ export function classifyRelayClientOutput(
if (/\bRegistered tunnel connection\b/iu.test(line)) {
return "connected";
}
if (
/\bERR\s+(?:Request failed\s+)?error="Incoming request ended abruptly: context canceled"(?:\s|$)/u.test(
line,
)
) {
return "debug";
}
// cloudflared uses zerolog FTL/PNC for fatal/panic; classify them above debug too.
if (/\b(?:ERR|WRN|FTL|PNC)\b/u.test(line)) {
return "warning";
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