not able to rotate multiple log files

[prasanjitm]

I am using zap with lumberjack. I have multiple log files for the application. But only one file is rotated where as other is not.

As per the below code, only the /opt/logs/request.json is rotated and the other is not. What may be the issue.

var reqLogger *zap.Logger

type lumberjackSink struct {
    *lumberjack.Logger
}

func (lumberjackSink) Sync() error { return nil }

func InitApiLogger(environment string) {
    logLevel := zapcore.InfoLevel
    reqLogger = initializeLogger("/opt/logs/request.json", logLevel, "requestLogger")
    applicationLogger = initializeLogger("/opt/logs/app.json", logLevel, "applicationLogger")
}

func initializeLogger(logFile string, logLevel zapcore.Level, logType string) *zap.Logger {
    zapConfig := zap.NewProductionConfig()
    zapConfig.DisableStacktrace = false
    zapConfig.DisableCaller = false
    zapConfig.EncoderConfig.EncodeTime = syslogTimeEncoder
    zapConfig.Level.SetLevel(logLevel)

    zap.RegisterSink(logType, func(u *url.URL) (zap.Sink, error) {
        return lumberjackSink{
            Logger: &lumberjack.Logger{
                Filename:   logFile,
                MaxSize:    1,
                MaxBackups: 10,
                MaxAge:     10,
                Compress:   false,
            },
        }, nil
    })

    zapConfig.OutputPaths = []string{fmt.Sprintf("%s:%s", logType, logFile)}
    zapConfig.ErrorOutputPaths = []string{fmt.Sprintf("%s:%s", logType, logFile)}

    var loggerBuildErr error
    logger, loggerBuildErr := zapConfig.Build()
    if loggerBuildErr != nil {
        panic(fmt.Errorf("error in building zap application logger: %s", loggerBuildErr))
    }
    return logger
}
// Return the logger object
func GetRequestLogger() *zap.Logger {
    return reqLogger
}

// Return the logger object
func GetApplicationLogger() *zap.Logger {
    return applicationLogger
}

func syslogTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
    enc.AppendString(t.Format(constants.LoggingDateFormat))
}

[prasanjitm]

@natefinch any idea?

[ianfebriyanto]

do you already found any solution ? same here, I want to write some log into different files