I once enable the default filed in IIS Logging.
But the after I need to change and add other fields for Logging.
How to full Disabled Logging in IIS and Then after How to set as a new.
Do you mean you want to let the IIS add the logs as with the new fields setting for the previous logs?
In my opinion, this is impossible. The IIS logs will just log for the new field after you modified the fields. It will not keep the previous logs fields value.
Related
I'm using log4net.Appender.AzureAppendBlobAppender to log my web app's info & errors. Sometimes I'm getting the "BlockCountExceedsLimit" exception. It is due to the append blob accepts only 50,000 block commits after that it through the exception (Conflict (409)). I have checked the code and found that it waits for the 512 log events and flush each log entry separately to the append blob. So, we can log only 50,000 log entries in a day.
Can anyone please help me on this? Does anyone know any alternate for this?
Thanks,
Karthik
According to your description, I assumed that you are using log4net.Appender.Azure nuget package. As you can see under AzureAppendBlobAppender.cs:
private static string Filename(string directoryName)
{
return string.Format("{0}/{1}.entry.log.xml",
directoryName,
DateTime.Today.ToString("yyyy_MM_dd",
DateTimeFormatInfo.InvariantInfo));
}
Per my understanding, you could follow AzureAppendBlobAppender.cs to write your custom AzureAppendBlobAppender and adjust the Filename,SendBuffer methods to meet your requirement.
I'm using log4net.Appender.AzureAppendBlobAppender to log my web app's info & errors.
Since you use azure web app to host your application, you could use the built-in Application Logging (Blob), and azure side would help you generate the logs hourly. You could log into Azure Portal, choose your web app, enable application logging (Blob), set the logging level to Information, details you could follow Enable diagnostics logging for web apps in Azure App Service.
For your application, you could use the following code to log info and errors.
System.Diagnostics.Trace.TraceError("xxxxx");
System.Diagnostics.Trace.TraceInformation("xxxxx");
I've changed the code to a little bit to append the blob, once the buffer reaches the threshold value (512 log entries) it'll flush the log entries in single commit.
Is there a configuration setting I can do to make Apache traffic server to log XFF header into the logs ? I have gone over the ATS documentation and there's no mention of this. I see various logging formats explained.
Using the custom log field 'cqh' you can log the value of any header. So in your logging.config, you'd have a field '%<{X-Forwarded-For}cqh>'
I'd like to use my IIS logs to track sessions in my app, but don't have a session key being pushed along the querystring in my pages.
What's the easiest way to start tracking that in the log - put a querystring value in the iis logs, or is there a way to append session to the logs as a custom field?
Using 32-bit classic asp against windows server 2003 64-bit.
IIS (since version 5, at least) lets you log cookies in the "W3C Extended" log file format. Add the "cs-cookie" field to your logs and restart your website, they'll appear there.
You will need log analysis software that supports tracing sessions via the cs-cookie field, however - but it largely isn't necessary as most log analysis follows paths-through-site and sessions by tracing the cs-referer header instead.
If you have large cookie strings then expect your site log files to balloon in size.
I am using log4net in a web app, and log all page errors to a SQL server. I was wondering if there was any way to retrieve the entry ID generated by it. I'm going off of the documentation found here
http://logging.apache.org/log4net/release/config-examples.html
I want to use this ID as a reference number I can show to a customer so that they may contact customer support to lookup in the system and not have to go through a log file.
Apart from writing your own appender as floyddotnet suggested you could consider:
Use a GUID. You can easily generate it in your application and will serve most of your purposes. Drawback: It may be inconvenient for the customers if they try to tell your support stuff about it on the phone. If you have only email support than this is maybe not an issue.
Consider creating an incident number outside of the logging framework. A quick call to a stored procedure that returns an ID that you save in a nullable field in your log table.
A combination of the above: Use a Guid and after logging you call a stored procedure that creates an incident and returns the ID.
Writing an appender that returns the ID creates a dependency between your application and appenders that you normally do not have: Log4net was designed with a clear separation between logging and writing the log messages somewhere. The appender that you need would affect that separation.
Since the ID is generated by the database and not by log4net, I don't believe this information is available to you.
What I've done in using log4net for such conditions is to include a datetime stamp in the message that goes down to the millisecond and present that to the user as a reference number. You can do then do a simple SQL query to get to the message in the log table.
I'm not sure its posible but you can write your own Appender for log4net end store this information in the log4net-context.
Howto writing an appender for log4net:
http://www.alteridem.net/2008/01/10/writing-an-appender-for-log4net/
Context-Description:
http://logging.apache.org/log4net/release/manual/contexts.html
Please help me with this query in using log4net.
I am using log4net in mhy we application. I am facing issues in configuring log4net to log errors at user level.
That is, If user X logs in, I like to create file name X and all error for user X should be written in X.log. Siilarly if Y user logs in the log file should be in name of Y.log and the most important point to note is, they could log in concurrently.
I tried the luck by creating log files whose name would be framed dynamically as soon as the user logs in. But issue here, if they are not using the application at the same time, the log files are creeated with correct name and writing as expected, but if both users have active sessions, log file is created only for user who FIRST logged in and error of second user has been recorded in log file that is created for FIRST user.
Please help me in this.
There has to be a better solution from this one, but you can change log4net configuration from code and even decide which config file to load - so you can do it in code, which is not as nice as editing an XML file.
so what you need to do, which is highly not recommended, is to create log4net configuration each time you call the logger static class, and do what needed based on the calling user.
again.. it doesn't feel right !
(and it will probably perform poorly).
another BETTER solution is to log everything to database (log4net supports it), with a user column, and then produce the logs from db....