duplicate log entries Nlog











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I use Nlog to log and i find that i have 5 entries in my log file for every call made to nLog. How can i fix it?
for eg.



2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug   startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup


My nLog config is as below



/****CLASS LEVEL VARIABLES***/
// Step 1. Create configuration object
private static LoggingConfiguration config = new LoggingConfiguration();
private static FileTarget fileTarget = new FileTarget();
private static Logger logger = LogManager.GetCurrentClassLogger();
/*** END OF CLASS LEVEL VARIABLES ***/

/*************************NLOG CONFIG*****/

fileTarget.FileName =
"C:\temp\" + Instrument.FullName + "nLog." + DateTime.Now.Ticks + ".log";
fileTarget.Layout =
"${longdate} ${callsite} ${level} ${event-context:item=StrategyId} ${message}";

config.AddTarget("file", fileTarget);

// Step 4. Define rules
LoggingRule rule2 = new LoggingRule("*", NLog.LogLevel.Trace, fileTarget);
config.LoggingRules.Add(rule2);

// Step 5. Activate the configuration
LogManager.Configuration = config;


logger.Debug("startup");


/*************************NLOG CONFIG*****/


you can see the starup printed 6 times and it is called only once in the program at the begining of the program in the Ninjatrader onStartup.



I also have the scoped Global Diagnistoc but i dont think that can cause this to happen



public class ScopedGlobalContext : IDisposable
{
private string n;
private string v;

public ScopedGlobalContext(string name, string value)
{
n = name;
v = value;
NLog.GlobalDiagnosticsContext.Set(n, v);
}

public void Dispose()
{
NLog.GlobalDiagnosticsContext.Remove(n);
}
}









share|improve this question
























  • As your rule is called rule2, do you have multiple ones?
    – ccellar
    Dec 25 '12 at 10:34










  • no. that is all the code that i have for nLog. i deleted the rule1 but forgot to rename the variables. I am still not sure why it gets printed 6 times
    – junkone
    Dec 26 '12 at 21:21










  • Do you have any NLog configuration, either in app.config or in NLog.config? Have you posted all of your NLog configuration code? I see you have a variable, "config", where does it come from?
    – wageoghe
    Dec 28 '12 at 19:47










  • these are just class level variables that i was using. i cut and pasted it in the code sample that i have shown.
    – junkone
    Dec 29 '12 at 20:59






  • 1




    In the first code block you have a section (as noted in the comments) called "CLASS LEVEL VARIABLES". Do you have this same code in each class? I ask this because, you should configure NLog exactly once in your application, not once per class. Have you tried making a stripped down program/library to experiment with NLog? It might be easier to figure out what is going on with NLog if you have less stuff going on.
    – wageoghe
    Jan 2 '13 at 18:06















up vote
1
down vote

favorite












I use Nlog to log and i find that i have 5 entries in my log file for every call made to nLog. How can i fix it?
for eg.



2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug   startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup


My nLog config is as below



/****CLASS LEVEL VARIABLES***/
// Step 1. Create configuration object
private static LoggingConfiguration config = new LoggingConfiguration();
private static FileTarget fileTarget = new FileTarget();
private static Logger logger = LogManager.GetCurrentClassLogger();
/*** END OF CLASS LEVEL VARIABLES ***/

/*************************NLOG CONFIG*****/

fileTarget.FileName =
"C:\temp\" + Instrument.FullName + "nLog." + DateTime.Now.Ticks + ".log";
fileTarget.Layout =
"${longdate} ${callsite} ${level} ${event-context:item=StrategyId} ${message}";

config.AddTarget("file", fileTarget);

// Step 4. Define rules
LoggingRule rule2 = new LoggingRule("*", NLog.LogLevel.Trace, fileTarget);
config.LoggingRules.Add(rule2);

// Step 5. Activate the configuration
LogManager.Configuration = config;


logger.Debug("startup");


/*************************NLOG CONFIG*****/


you can see the starup printed 6 times and it is called only once in the program at the begining of the program in the Ninjatrader onStartup.



I also have the scoped Global Diagnistoc but i dont think that can cause this to happen



public class ScopedGlobalContext : IDisposable
{
private string n;
private string v;

public ScopedGlobalContext(string name, string value)
{
n = name;
v = value;
NLog.GlobalDiagnosticsContext.Set(n, v);
}

public void Dispose()
{
NLog.GlobalDiagnosticsContext.Remove(n);
}
}









share|improve this question
























  • As your rule is called rule2, do you have multiple ones?
    – ccellar
    Dec 25 '12 at 10:34










  • no. that is all the code that i have for nLog. i deleted the rule1 but forgot to rename the variables. I am still not sure why it gets printed 6 times
    – junkone
    Dec 26 '12 at 21:21










  • Do you have any NLog configuration, either in app.config or in NLog.config? Have you posted all of your NLog configuration code? I see you have a variable, "config", where does it come from?
    – wageoghe
    Dec 28 '12 at 19:47










  • these are just class level variables that i was using. i cut and pasted it in the code sample that i have shown.
    – junkone
    Dec 29 '12 at 20:59






  • 1




    In the first code block you have a section (as noted in the comments) called "CLASS LEVEL VARIABLES". Do you have this same code in each class? I ask this because, you should configure NLog exactly once in your application, not once per class. Have you tried making a stripped down program/library to experiment with NLog? It might be easier to figure out what is going on with NLog if you have less stuff going on.
    – wageoghe
    Jan 2 '13 at 18:06













up vote
1
down vote

favorite









up vote
1
down vote

favorite











I use Nlog to log and i find that i have 5 entries in my log file for every call made to nLog. How can i fix it?
for eg.



2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug   startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup


My nLog config is as below



/****CLASS LEVEL VARIABLES***/
// Step 1. Create configuration object
private static LoggingConfiguration config = new LoggingConfiguration();
private static FileTarget fileTarget = new FileTarget();
private static Logger logger = LogManager.GetCurrentClassLogger();
/*** END OF CLASS LEVEL VARIABLES ***/

/*************************NLOG CONFIG*****/

fileTarget.FileName =
"C:\temp\" + Instrument.FullName + "nLog." + DateTime.Now.Ticks + ".log";
fileTarget.Layout =
"${longdate} ${callsite} ${level} ${event-context:item=StrategyId} ${message}";

config.AddTarget("file", fileTarget);

// Step 4. Define rules
LoggingRule rule2 = new LoggingRule("*", NLog.LogLevel.Trace, fileTarget);
config.LoggingRules.Add(rule2);

// Step 5. Activate the configuration
LogManager.Configuration = config;


logger.Debug("startup");


/*************************NLOG CONFIG*****/


you can see the starup printed 6 times and it is called only once in the program at the begining of the program in the Ninjatrader onStartup.



I also have the scoped Global Diagnistoc but i dont think that can cause this to happen



public class ScopedGlobalContext : IDisposable
{
private string n;
private string v;

public ScopedGlobalContext(string name, string value)
{
n = name;
v = value;
NLog.GlobalDiagnosticsContext.Set(n, v);
}

public void Dispose()
{
NLog.GlobalDiagnosticsContext.Remove(n);
}
}









share|improve this question















I use Nlog to log and i find that i have 5 entries in my log file for every call made to nLog. How can i fix it?
for eg.



2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug   startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup
2012-12-23 18:18:19.2465 NinjaTrader.Strategy.LODHOD.OnStartUp Debug startup


My nLog config is as below



/****CLASS LEVEL VARIABLES***/
// Step 1. Create configuration object
private static LoggingConfiguration config = new LoggingConfiguration();
private static FileTarget fileTarget = new FileTarget();
private static Logger logger = LogManager.GetCurrentClassLogger();
/*** END OF CLASS LEVEL VARIABLES ***/

/*************************NLOG CONFIG*****/

fileTarget.FileName =
"C:\temp\" + Instrument.FullName + "nLog." + DateTime.Now.Ticks + ".log";
fileTarget.Layout =
"${longdate} ${callsite} ${level} ${event-context:item=StrategyId} ${message}";

config.AddTarget("file", fileTarget);

// Step 4. Define rules
LoggingRule rule2 = new LoggingRule("*", NLog.LogLevel.Trace, fileTarget);
config.LoggingRules.Add(rule2);

// Step 5. Activate the configuration
LogManager.Configuration = config;


logger.Debug("startup");


/*************************NLOG CONFIG*****/


you can see the starup printed 6 times and it is called only once in the program at the begining of the program in the Ninjatrader onStartup.



I also have the scoped Global Diagnistoc but i dont think that can cause this to happen



public class ScopedGlobalContext : IDisposable
{
private string n;
private string v;

public ScopedGlobalContext(string name, string value)
{
n = name;
v = value;
NLog.GlobalDiagnosticsContext.Set(n, v);
}

public void Dispose()
{
NLog.GlobalDiagnosticsContext.Remove(n);
}
}






logging nlog






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edited Oct 23 '15 at 11:16









superjos

8,208264100




8,208264100










asked Dec 24 '12 at 10:40









junkone

619927




619927












  • As your rule is called rule2, do you have multiple ones?
    – ccellar
    Dec 25 '12 at 10:34










  • no. that is all the code that i have for nLog. i deleted the rule1 but forgot to rename the variables. I am still not sure why it gets printed 6 times
    – junkone
    Dec 26 '12 at 21:21










  • Do you have any NLog configuration, either in app.config or in NLog.config? Have you posted all of your NLog configuration code? I see you have a variable, "config", where does it come from?
    – wageoghe
    Dec 28 '12 at 19:47










  • these are just class level variables that i was using. i cut and pasted it in the code sample that i have shown.
    – junkone
    Dec 29 '12 at 20:59






  • 1




    In the first code block you have a section (as noted in the comments) called "CLASS LEVEL VARIABLES". Do you have this same code in each class? I ask this because, you should configure NLog exactly once in your application, not once per class. Have you tried making a stripped down program/library to experiment with NLog? It might be easier to figure out what is going on with NLog if you have less stuff going on.
    – wageoghe
    Jan 2 '13 at 18:06


















  • As your rule is called rule2, do you have multiple ones?
    – ccellar
    Dec 25 '12 at 10:34










  • no. that is all the code that i have for nLog. i deleted the rule1 but forgot to rename the variables. I am still not sure why it gets printed 6 times
    – junkone
    Dec 26 '12 at 21:21










  • Do you have any NLog configuration, either in app.config or in NLog.config? Have you posted all of your NLog configuration code? I see you have a variable, "config", where does it come from?
    – wageoghe
    Dec 28 '12 at 19:47










  • these are just class level variables that i was using. i cut and pasted it in the code sample that i have shown.
    – junkone
    Dec 29 '12 at 20:59






  • 1




    In the first code block you have a section (as noted in the comments) called "CLASS LEVEL VARIABLES". Do you have this same code in each class? I ask this because, you should configure NLog exactly once in your application, not once per class. Have you tried making a stripped down program/library to experiment with NLog? It might be easier to figure out what is going on with NLog if you have less stuff going on.
    – wageoghe
    Jan 2 '13 at 18:06
















As your rule is called rule2, do you have multiple ones?
– ccellar
Dec 25 '12 at 10:34




As your rule is called rule2, do you have multiple ones?
– ccellar
Dec 25 '12 at 10:34












no. that is all the code that i have for nLog. i deleted the rule1 but forgot to rename the variables. I am still not sure why it gets printed 6 times
– junkone
Dec 26 '12 at 21:21




no. that is all the code that i have for nLog. i deleted the rule1 but forgot to rename the variables. I am still not sure why it gets printed 6 times
– junkone
Dec 26 '12 at 21:21












Do you have any NLog configuration, either in app.config or in NLog.config? Have you posted all of your NLog configuration code? I see you have a variable, "config", where does it come from?
– wageoghe
Dec 28 '12 at 19:47




Do you have any NLog configuration, either in app.config or in NLog.config? Have you posted all of your NLog configuration code? I see you have a variable, "config", where does it come from?
– wageoghe
Dec 28 '12 at 19:47












these are just class level variables that i was using. i cut and pasted it in the code sample that i have shown.
– junkone
Dec 29 '12 at 20:59




these are just class level variables that i was using. i cut and pasted it in the code sample that i have shown.
– junkone
Dec 29 '12 at 20:59




1




1




In the first code block you have a section (as noted in the comments) called "CLASS LEVEL VARIABLES". Do you have this same code in each class? I ask this because, you should configure NLog exactly once in your application, not once per class. Have you tried making a stripped down program/library to experiment with NLog? It might be easier to figure out what is going on with NLog if you have less stuff going on.
– wageoghe
Jan 2 '13 at 18:06




In the first code block you have a section (as noted in the comments) called "CLASS LEVEL VARIABLES". Do you have this same code in each class? I ask this because, you should configure NLog exactly once in your application, not once per class. Have you tried making a stripped down program/library to experiment with NLog? It might be easier to figure out what is going on with NLog if you have less stuff going on.
– wageoghe
Jan 2 '13 at 18:06












3 Answers
3






active

oldest

votes

















up vote
5
down vote













If you have multiple rules that targets for instance file, then you get multiple writes to it.






share|improve this answer





















  • This thread in the nlog forum suggests to use 'final' to prevent this: nlog-forum.1685105.n2.nabble.com/…
    – Stefan Sieber
    Apr 21 '16 at 9:32




















up vote
2
down vote













I had the same thing happen to me. Several searches lead to other people having the same issue, but no solution. I think this is a bug that happens if you're running multiple threads and/or if the logging is being called inside a Linq query. Remember, Linq does always execute immediately. Although this isn't an answer, it should help you find the source of the problem.






share|improve this answer




























    up vote
    0
    down vote













    WhenRepeated-Filter




    Matches when the calculated layout has already been logged. Useful if having an aggressive logger, and wants to throttle the output.



    Introduced with NLog ver. 4.5




    It looks to be the solution introduced by nlog to debounce/throttle log outputs.






    share|improve this answer





















    • WhenRepeated-Filter is a work-around for bad logging behavior in the host-application. It is not meant as work-around for wrongly configured NLog logging-rules (Better just to fix the logging-rule config)
      – Rolf Kristensen
      Nov 15 at 15:37













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    3 Answers
    3






    active

    oldest

    votes








    3 Answers
    3






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    5
    down vote













    If you have multiple rules that targets for instance file, then you get multiple writes to it.






    share|improve this answer





















    • This thread in the nlog forum suggests to use 'final' to prevent this: nlog-forum.1685105.n2.nabble.com/…
      – Stefan Sieber
      Apr 21 '16 at 9:32

















    up vote
    5
    down vote













    If you have multiple rules that targets for instance file, then you get multiple writes to it.






    share|improve this answer





















    • This thread in the nlog forum suggests to use 'final' to prevent this: nlog-forum.1685105.n2.nabble.com/…
      – Stefan Sieber
      Apr 21 '16 at 9:32















    up vote
    5
    down vote










    up vote
    5
    down vote









    If you have multiple rules that targets for instance file, then you get multiple writes to it.






    share|improve this answer












    If you have multiple rules that targets for instance file, then you get multiple writes to it.







    share|improve this answer












    share|improve this answer



    share|improve this answer










    answered Nov 4 '13 at 9:32









    Johan

    4701929




    4701929












    • This thread in the nlog forum suggests to use 'final' to prevent this: nlog-forum.1685105.n2.nabble.com/…
      – Stefan Sieber
      Apr 21 '16 at 9:32




















    • This thread in the nlog forum suggests to use 'final' to prevent this: nlog-forum.1685105.n2.nabble.com/…
      – Stefan Sieber
      Apr 21 '16 at 9:32


















    This thread in the nlog forum suggests to use 'final' to prevent this: nlog-forum.1685105.n2.nabble.com/…
    – Stefan Sieber
    Apr 21 '16 at 9:32






    This thread in the nlog forum suggests to use 'final' to prevent this: nlog-forum.1685105.n2.nabble.com/…
    – Stefan Sieber
    Apr 21 '16 at 9:32














    up vote
    2
    down vote













    I had the same thing happen to me. Several searches lead to other people having the same issue, but no solution. I think this is a bug that happens if you're running multiple threads and/or if the logging is being called inside a Linq query. Remember, Linq does always execute immediately. Although this isn't an answer, it should help you find the source of the problem.






    share|improve this answer

























      up vote
      2
      down vote













      I had the same thing happen to me. Several searches lead to other people having the same issue, but no solution. I think this is a bug that happens if you're running multiple threads and/or if the logging is being called inside a Linq query. Remember, Linq does always execute immediately. Although this isn't an answer, it should help you find the source of the problem.






      share|improve this answer























        up vote
        2
        down vote










        up vote
        2
        down vote









        I had the same thing happen to me. Several searches lead to other people having the same issue, but no solution. I think this is a bug that happens if you're running multiple threads and/or if the logging is being called inside a Linq query. Remember, Linq does always execute immediately. Although this isn't an answer, it should help you find the source of the problem.






        share|improve this answer












        I had the same thing happen to me. Several searches lead to other people having the same issue, but no solution. I think this is a bug that happens if you're running multiple threads and/or if the logging is being called inside a Linq query. Remember, Linq does always execute immediately. Although this isn't an answer, it should help you find the source of the problem.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Feb 20 '13 at 16:45









        ATL_DEV

        1,62742144




        1,62742144






















            up vote
            0
            down vote













            WhenRepeated-Filter




            Matches when the calculated layout has already been logged. Useful if having an aggressive logger, and wants to throttle the output.



            Introduced with NLog ver. 4.5




            It looks to be the solution introduced by nlog to debounce/throttle log outputs.






            share|improve this answer





















            • WhenRepeated-Filter is a work-around for bad logging behavior in the host-application. It is not meant as work-around for wrongly configured NLog logging-rules (Better just to fix the logging-rule config)
              – Rolf Kristensen
              Nov 15 at 15:37

















            up vote
            0
            down vote













            WhenRepeated-Filter




            Matches when the calculated layout has already been logged. Useful if having an aggressive logger, and wants to throttle the output.



            Introduced with NLog ver. 4.5




            It looks to be the solution introduced by nlog to debounce/throttle log outputs.






            share|improve this answer





















            • WhenRepeated-Filter is a work-around for bad logging behavior in the host-application. It is not meant as work-around for wrongly configured NLog logging-rules (Better just to fix the logging-rule config)
              – Rolf Kristensen
              Nov 15 at 15:37















            up vote
            0
            down vote










            up vote
            0
            down vote









            WhenRepeated-Filter




            Matches when the calculated layout has already been logged. Useful if having an aggressive logger, and wants to throttle the output.



            Introduced with NLog ver. 4.5




            It looks to be the solution introduced by nlog to debounce/throttle log outputs.






            share|improve this answer












            WhenRepeated-Filter




            Matches when the calculated layout has already been logged. Useful if having an aggressive logger, and wants to throttle the output.



            Introduced with NLog ver. 4.5




            It looks to be the solution introduced by nlog to debounce/throttle log outputs.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Nov 13 at 20:18









            willll

            1,2351320




            1,2351320












            • WhenRepeated-Filter is a work-around for bad logging behavior in the host-application. It is not meant as work-around for wrongly configured NLog logging-rules (Better just to fix the logging-rule config)
              – Rolf Kristensen
              Nov 15 at 15:37




















            • WhenRepeated-Filter is a work-around for bad logging behavior in the host-application. It is not meant as work-around for wrongly configured NLog logging-rules (Better just to fix the logging-rule config)
              – Rolf Kristensen
              Nov 15 at 15:37


















            WhenRepeated-Filter is a work-around for bad logging behavior in the host-application. It is not meant as work-around for wrongly configured NLog logging-rules (Better just to fix the logging-rule config)
            – Rolf Kristensen
            Nov 15 at 15:37






            WhenRepeated-Filter is a work-around for bad logging behavior in the host-application. It is not meant as work-around for wrongly configured NLog logging-rules (Better just to fix the logging-rule config)
            – Rolf Kristensen
            Nov 15 at 15:37




















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