I'm trying to learn about using mod-wsgi, and I thought the best way would be for me to write my own simple 'debug' framework. I am NOT looking to use someone else's debug framework at this time.
The problem is, I'm not sure how to get started.
Specifically, I have a script working now where there is a WSGIAlias to my python script:
/testscript -> /home/bill/testscript.py [this works ok]
There are several annoying problems here, namely that if there is any syntax error of any kind, apache returns a 500 server error, and I have to check the server logs, which is annoying.
What I would like to do is to have some kind of framework called, that then encapsulates my script, this way when an error occurs (like a syntax error in testscript.py or any other type of exception), I can catch the exception, and return a nicely formatted HTML file with debugging information.
My question is, how do I 'pass' the script I want to run as an argument to my debug script?
From the command line, it would be easy, I would do something like this:
$ python debug.py myscript.py
How can I do this using WSGI though? Any ideas?
Related
I suppose that this is more of a curiosity as opposed to an actual issue, but I thought I'd ask about it anyway. There are times when an uncaught error occurs in a server-side NetSuite script using SuiteScript 2.0/2.1 (2.x), but instead of seeing a "SYSTEM" scripting log entry, there's nothing. It gives the appearance of a script just stopping for no reason. Now, I know this can easily be avoided by wrapping everything within a try-catch block, but that's not what I'm trying to discuss here.
Does anyone have any insight into why a script would just stop without any SYSTEM error logging? It's just something I find interesting given that with the 1.0 API uncaught errors would always get logged. And it's not a guarantee that an uncaught error won't be logged as a SYSTEM log. It seems more common with map/reduce scripts, but unless memory is not serving correctly I believe that I have seen it happen with suitelets and user event scripts, too.
Just thought that I'd pose the question here to see if there was anyone who might know a little something about it.
This is actually covered in the system help for Map/Reduce scripts. They do fail silently. I've not seen this in any other script type.
I'm developing plugins for a program. Whenever I try to load my plugin in that program it crashes with an the specified procedure could not be foundbut nothing more.
Well to have an insight I tracked with Process Monitor (or ProcMon). I set the filter to just print messages for the process of my main program. However that application shows me including the libraries ends (after wandering through PATH) at the right file - i.e. Result: SUCCESS.
So my computer left me pretty clueless, yet refuses to work. Has anyone an idea how identify the missing procedure?
N.B.: Additionally I ran the DependencyWalker which gave me the usual error message because it's deprecated (dependency walker gives me errors on the system that runs correctly) - which could indicate that all dependencies are found.
On development everything works great. On production however, this line of code in a controller is no working:
output = `mclines #{paramFileName} #{logFileName} #{outputFileName}`
where mclines is a c program, and the rest are names of files. mclines is not executed on the production server, but it does on my laptop. I have no idea about what to fix. Have been trying different things for hours, but the truth is that I'm quite lost. In production the ssl in on, that's the only major difference.
If I execute the command on the shell, it gets executed. When I say it doesn't gets executed is because the first thing it should do is print some info in a file, and it doesn't. The server -as my laptop- is running ubuntu, but I have no idea about what logs could be usefull to read. systemlog had nothing usefull.
Any ideas that can lead to find the culprit are welcome.
Make sure mclines really exists on the production server, and use the full path to the mclines executable, as in
output = `/full/path/to/mclines #{paramFileName} #{logFileName} #{outputFileName}`.
Reference this
Try to print out your exit status code as:
$?.to_i
after the command...
or as pointed out in this link you can always use popen3/popen4 for better handling of input/output for system commands...
I'm doing some TDD with a ColdFusion ORM application so I'm letting the application.cfc in my tests directory so I'm setting dbcreate="update" so the tests will create the database tables. Every time I change a model's method and re-run my tests I get the following error:
Mapping for component models.user.User not found.
If I restart the server the error goes away, however this is a terrible workflow so I'm looking for a better way to fix this problem.
have you tried dbcreate=dropcreate?
From my experience, update or dropcreate might fail for the first time, but if you ormreload again, it might just work.
I have a .bat file shown below in which I want to redirect the whole contents present in my IDE to some text file.
D:\WindRiver\wrenv.exe -p vxworks653-2.2.3 run
D:\WindRiver\wrenv.exe -p vxworks653-2.2.3>C:\ThreePartition\output.txt
PAUSE
I am able to just get some partial output i.e I am unable to get the errors which are thrown during compilation or building process.
Is this correct or Can anyone suggest any other way??
Thanks a lot
Maddy
You can try this:
D:\WindRiver\wrenv.exe -p vxworks653-2.2.3 > C:\ThreePartition\output.txt 2>&1
You can find a good explanation here. Basically you need to redirect both stdout AND stderr to your file.
Best regards.
Your batch is redirecting all messages from wrenv.exe that are sent to the standard output.
I never used WinRiver but usually IDEs manage the console internally and don't log any messages on the standard output/error stream.
It is maybe possible to set the output of the console of the IDE though. If it is, try to set it to the standard output.
I think you want to combine both those lines into one:
D:\WindRiver\wrenv.exe -p vxworks653-2.2.3 run >C:\ThreePartition\output.txt
OK, looking at your posts here, here and here, it seems you want to log the compilation process. The command for that will be something like (all on one line):
make ThreePartition.mak >C:\ThreePartition\output.txt
Assuming there's a file called ThreePartition.mak.
The command you've been using so far is designed to simply open an interface where you can type commands, which is why you get no output. If you want to log simulation, or a kernel build, there is a file called vxworks_cli_tools_users_guide_6.6.pdf which describes the command line interface, including vxprj in full detail.
Also, are you really using a nant script to call a .vbs to call a .bat to call wrenv.exe? I'm sure there's a simpler way to do that.