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Log Records getting skipped after rotation #1448

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Akhilesh53 opened this issue Jun 13, 2024 · 1 comment
Open

Log Records getting skipped after rotation #1448

Akhilesh53 opened this issue Jun 13, 2024 · 1 comment

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@Akhilesh53
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Describe the bug
After rotation (creation of a new file) the very first log line is skipped and is not showing in log file.

To Reproduce
`func initiliaselogger() {
level := getLevel(env.ENV.LOG_LEVEL)

devConfig := zap.NewDevelopmentEncoderConfig()
prodConfig := zap.NewProductionEncoderConfig()

devConfig.EncodeTime = zapcore.RFC3339NanoTimeEncoder
prodConfig.EncodeTime = zapcore.RFC3339NanoTimeEncoder
hostname, err := os.Hostname()
if err != nil {
	hostname = ""
}
if hostname != "" {
	hostname = "_" + hostname
}
filewriter := zapcore.AddSync(&lumberjack.Logger{
	Filename:   "logs/regulatory/" + strings.ToLower(strings.ReplaceAll(env.ENV.PROCESS_NAME+hostname, " ", "_")) + ".log",
	MaxSize:    40,
	MaxAge:     30,
	MaxBackups: 100,
	Compress:   false, // disabled by default
})
core := zapcore.NewCore(zapcore.NewJSONEncoder(prodConfig), filewriter, level)

if env.ENV.ENVIRONMENT == "dev" {
	core = zapcore.NewTee(
		core,
		zapcore.NewCore(zapcore.NewConsoleEncoder(devConfig), zapcore.Lock(os.Stdout), level),
	)
}

if env.ENV.KAFKA_LOG == "Y" {
	kafkaSync := zapcore.AddSync(getKafkaWriter())
	core = zapcore.NewTee(
		core,
		zapcore.NewCore(zapcore.NewJSONEncoder(prodConfig), kafkaSync, level),
	)
}

Log = zap.New(core,
	zap.AddCaller(),
	zap.AddCallerSkip(1),
	zap.AddStacktrace(zap.ErrorLevel),
)

}`

Expected behavior
After the creation of a new file (after rotation), the very line of the log is skipped.

Pls let me know if I have to change anything in the configuration while initializing the logger.

@r-hang
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r-hang commented Jun 18, 2024

Hey @Akhilesh53,

Would you be able to provide a reproducible example that we can run and debug locally?

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