Is there any way to create a log file with NLOG will just contain the latest message. Basically I don't want to append to the log and have it only contain the latest message. The goal is to create a log file out of each of hundreds of processes that are running so I can have a separate process look at those logs to verify that a process is up and running.
The File target has a property replaceFileContentsOnEachWrite - indicates whether to replace file contents on each write instead of appending log message at the end.
http://nlog-project.org/wiki/File_target#File_replaceFileContentsOnEachWrite
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I am using Logic app to detect any change in a FTP folder. There are 30+ files and whenever there is any change the storage copies the file to blob. The issue is it's firing on each file if 30 files are changed then it will fire 30 times. I want it to fire only once no matter how many files in a folder changed. After blobs are copied I am firing a Get request so that my website is updated also. Am I using the wrong approach?
Below you can see my whole logic.
As per your verbatim you have mentioned that you are using the FTP connector but as per your screenshot (that has included file content property on the trigger) it looks like you are using the SFTP-SSH connector trigger as FTP trigger doesn't have that property. Please correct if my understanding is correct.
If you are using When a file is added or modified trigger, then it will trigger your workflow on every file that is modified or added, and this is expected behavior that it will trigger your workflow on every file that is modified or added.
But if you are using the When files are added or modified (properties only) then this action has the setting Split On property which you can disable (by default enabled) so your workflow will execute only once for all the files that are added or modified for the How often do you want to check for the item? property time you have configured.
In case if it is FTP connector then you need to disable the Split On property and it still holds valid. For more details refer to this section.
I have just started to use logging for my C# application. I am using NLog for logging entries to a *.log file and I view it using a Notepad++.
I want to try Sentinel, although I can view the logs on sentinel, I am not sure with the initial steps of sentinel, do I have to do the following every time I want to start sentinel to read a log?
Add new logger
Provider registration - NLog viewer
Visualizing the log
Cant I just start the sentinel and choose from a set configuration files ? If I am running two C# applications one using Log4Net and another Nlog, do I have to go through these over again instead of just selecting a config file?
Also what is the purpose of saving a session in sentinel ?
Once you have a session saved in a file - file.sntl - you can instruct Sentinel to pull that session in on startup by supplying the filename on the command line. I have nlog.sntl saved and use the following from a command script:
#echo off
start /B c:\apps\sentinel\sentinel nlog.sntl
I'm sure you'd be able to create a program shortcut with the same information - I just can't be bothered
In my organization we have application that gets events and stores them on s3 partitioned by day. Some of the events are offline which means that while writing we append the files to the proper folder (according to the date of the offline event).
We get the events by reading folders path from a queue (SQS) and then reading the data from the folders we got. each folder will contain data from several different event dates
The problem is that if the application failed for some reason after one of the stages was completed, I have no idea what was already written to the output folder and I can't delete it all because there is already other data there.
Our solution currently is writing to HDFS and after application finishes we have a script that copies files to s3 (using s3-Dist-cp).
But that doesn't seem very elegant.
My current approach is to write my own FileOutputCommmitter that will add an applicationId prefix to all written files and so in case of error I know what to delete.
So what I'm asking is actually is there an already existing solution to this within Spark and if not what do you think about my approach
--edit--
After chatting with #Yuval Itzchakov I decided to have the application write to and add this path to an AWS SQS queue. An independent process will be triggered every x minutes, read folders from SQS and copy them with s3-dist-cp from to . in the application I wrapped the main method with try-catch, if I catch exception I delete the temp folder.
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....
We have multiple log files like database log, weblog, quartzlog in our application.
Any log from files under package /app/database will go to database log.
Any log from files under package /app/offline will go to quartzlog log.
What we need now is - want to direct the log staments from one of the java file under /app/database to be outputted to quartzlog instead of database log.
How can we select a particular log file in java file?
You need to define the appropriate appender that logs in the desired file. Read this short introduction to see how you can do it.
Then in the configuration file, you can instruct all messages from a specific package to go in the selected appender:
log4j.logger.my.package = DEBUG, myFileAppender
EDIT:
I believe that in log4j only package resolution is possible - you can't use an appender per file or method. You could try to work around this by adding an extra layer on top of log4j or implementing your own appender.
For example, instead of log.debug use:
my.loggerproxy.log.debug(message);
If you only need to do it from a single method, then the above will be enough. Just instruct the logger proxy package to be logged in a different file.