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Provide example when format string is rate limited

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Here's an example log line in the new format:
    [RATE LIMITED] format string "open-conn-track: timeout opening %v; no associated peer node" (example: "open-conn-track: timeout opening ([ip] => [ip]); no associated peer node")
This should make debugging logging issues a bit easier, and give more
context as to why something was rate limited. This change was proposed
in a comment on #1110.

Signed-off-by: Smitty <me@smitop.com>
This commit is contained in:
Smitty 2021-01-13 15:53:59 -05:00 committed by Josh Bleecher Snyder
parent ce058c8280
commit 2bf49ddf90
2 changed files with 3 additions and 3 deletions
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2
types/logger/logger.go
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@ -132,7 +132,7 @@ func RateLimitedFn(logf Logf, f time.Duration, burst int, maxCache int) Logf {
logf(format, args...)
case warn:
// For the warning, log the specific format string
logf("[RATE LIMITED] format string \"%s\"", format)
logf("[RATE LIMITED] format string \"%s\" (example: \"%s\")", format, fmt.Sprintf(format, args...))
}
}
}

4
types/logger/logger_test.go
View File

@ -45,8 +45,8 @@ func TestRateLimiter(t *testing.T) {
"templated format string no. 0",
"boring string with constant formatting (constant)",
"templated format string no. 1",
"[RATE LIMITED] format string \"boring string with constant formatting %s\"",
"[RATE LIMITED] format string \"templated format string no. %d\"",
"[RATE LIMITED] format string \"boring string with constant formatting %s\" (example: \"boring string with constant formatting (constant)\")",
"[RATE LIMITED] format string \"templated format string no. %d\" (example: \"templated format string no. 2\")",
"Make sure this string makes it through the rest (that are blocked) 4",
"4 shouldn't get filtered.",
}