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lib/netutil: log only parsing errors for proxy-protocol (#3985)

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* lib/netutil: log only parsing errors for proxy-protocol

Previosly every error was logged. With configured TCP health checks at load-balancer or kubernetes, vmauth spams a lot of false positive error message into logs

* Update docs/CHANGELOG.md

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>

* Update lib/netutil/tcplistener.go

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>

---------

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
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Nikolay 2023-03-21 18:22:39 +01:00 committed by Aliaksandr Valialkin
parent 4ba237ec14
commit 9bb83cafa4
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2 changed files with 5 additions and 1 deletions
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1
docs/CHANGELOG.md
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@ -31,6 +31,7 @@ created by v1.90.0 or newer versions. The solution is to upgrade to v1.90.0 or n
* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): automatically disable progress bar when TTY isn't available. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3823).
* BUGFIX: prevent from slow [snapshot creating](https://docs.victoriametrics.com/#how-to-work-with-snapshots) under high data ingestion rate. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3551).
* BUGFIX: [vmauth](https://docs.victoriametrics.com/vmauth.html): suppress [proxy protocol](https://www.haproxy.org/download/2.3/doc/proxy-protocol.txt) parsing errors in case of `EOF`. Usually, the error is caused by health checks and is not a sign of an actual error.
## [v1.89.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.89.1)

5
lib/netutil/tcplistener.go
View file

@ -5,6 +5,7 @@ import (
"errors"
"flag"
"fmt"
"io"
"net"
"time"
@ -98,7 +99,9 @@ func (ln *TCPListener) Accept() (net.Conn, error) {
if ln.useProxyProtocol {
pConn, err := newProxyProtocolConn(conn)
if err != nil {
proxyProtocolReadErrorLogger.Errorf("cannot read proxy proto conn for TCP addr %q: %s", ln.Addr(), err)
if !errors.Is(err, io.EOF) {
proxyProtocolReadErrorLogger.Errorf("cannot read proxy proto conn for TCP addr %q: %s", ln.Addr(), err)
}
_ = conn.Close()
continue
}