RE: Concurrenty access to a log file!!!
If you use Apache's logging facilities (say for level debug). Apache will handle the concurrency/serializing for you. You might also look at using syslog -Original Message- From: Edmar Edilton da Silva [mailto:[EMAIL PROTECTED]] Sent: Friday, December 08, 2000 2:46 PM To: [EMAIL PROTECTED] Subject: Concurrenty access to a log file!!! Hi all, I have installed on my machine the mod_perl module and exists a lots perl scripts running under mod_perl. I am doing some tests and I need that all call to these perl scripts write in a log file. How can there are a lots scripts running to the same time, I need to control the processes of write. Please, can anyone give me any hint about it? Is there any doc on the Internet that I can use? Thanks for all help... Edmar Edilton da Silva Bacharel em Ciência da Computacão - UFV Mestrando em Ciência da Computacão - UNICAMP - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Concurrenty access to a log file!!!
On Fri, 8 Dec 2000, Edmar Edilton da Silva wrote: Hi all, I have installed on my machine the mod_perl module and exists a lots perl scripts running under mod_perl. I am doing some tests and I need that all call to these perl scripts write in a log file. How can there are a lots scripts running to the same time, I need to control the processes of write. Please, can anyone give me any hint about it? Is there any doc on the Internet that I can use? Thanks for all help... http://perl.apache.org/guide/debug.html#Critical_Section _ Stas Bekman JAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide http://perl.apache.org/guide mailto:[EMAIL PROTECTED] http://apachetoday.com http://logilune.com/ http://singlesheaven.com http://perl.apache.org http://perlmonth.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Concurrenty access to a log file!!!
I don't know if this helps but when you log something add the process ID to the log message. Then you should be able to trace what process is running what, look at : http://httpd.apache.org/docs/mod/mod_log_config.html#formats to tell you how to set up custom log formats, %p gives you the pid, there are some other things that could be useful to you as well. And just use Apache's standard logging. marc - Original Message - From: Edmar Edilton da Silva [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, 8. December 2000 14:46 Subject: Concurrenty access to a log file!!! Hi all, I have installed on my machine the mod_perl module and exists a lots perl scripts running under mod_perl. I am doing some tests and I need that all call to these perl scripts write in a log file. How can there are a lots scripts running to the same time, I need to control the processes of write. Please, can anyone give me any hint about it? Is there any doc on the Internet that I can use? Thanks for all help... Edmar Edilton da Silva Bacharel em Ciência da Computacão - UFV Mestrando em Ciência da Computacão - UNICAMP - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Concurrenty access to a log file!!!
On Fri, 8 Dec 2000, Jerrad Pierce wrote: If you use Apache's logging facilities (say for level debug). Apache will handle the concurrency/serializing for you. If I remember correctly only if the size of a single warn/print(STDERR,...) 4k, if you are talking about manually logging thru STDERR. _ Stas Bekman JAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide http://perl.apache.org/guide mailto:[EMAIL PROTECTED] http://apachetoday.com http://logilune.com/ http://singlesheaven.com http://perl.apache.org http://perlmonth.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Concurrenty access to a log file!!!
There's not Apache::: API for hooking into logging? AFAIK (which isn't to say much) it seems children pass logging information back to the initial process in some queue, et voila? And that 4k when likely be dependent on the kernel filehandle buffer. Which yes, is 4k on your typical x86... -Original Message- From: Stas Bekman [mailto:[EMAIL PROTECTED]] Sent: Friday, December 08, 2000 3:51 PM To: Jerrad Pierce Cc: mod_perl list Subject: RE: Concurrenty access to a log file!!! On Fri, 8 Dec 2000, Jerrad Pierce wrote: If you use Apache's logging facilities (say for level debug). Apache will handle the concurrency/serializing for you. If I remember correctly only if the size of a single warn/print(STDERR,...) 4k, if you are talking about manually logging thru STDERR. _ Stas Bekman JAm_pH -- Just Another mod_perl Hacker http://stason.org/ mod_perl Guide http://perl.apache.org/guide mailto:[EMAIL PROTECTED] http://apachetoday.com http://logilune.com/ http://singlesheaven.com http://perl.apache.org http://perlmonth.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
