I think you have me backwards. I'm not monitoring the log file, I'm writing to it (append mode). Within perl, I need to know when an outside process has renamed the log file so I can reinitialize the log output to a new file (the correct file name).
----- Original Message ----- From: "Robby Russell" <[EMAIL PROTECTED]> To: "TeamSolCO" <[EMAIL PROTECTED]> Sent: Thursday, January 29, 2004 4:54 PM Subject: Re: logrotate and perl file handles. How do I know when to reopen my log file? : TeamSolCO typed this on 01/29/2004 01:16 PM: : > I have written a long running perl application to help me with some trivial administrative functions. Due to the : > volume of logging generated by this application, I am managing its output with logrotate. The problem I face is that : > perl is "following" the log files that logrotate swaps out. While this is probably intelligent on perl's part (to : > follow the file descriptor rather than the file name), it is presenting a major problem for me. When "logfile" becomes : > "logfile.1" (etc), my application follows that move and "continues" logging to the new "logfile.1" instead of losing : > that file handle -- a condition which I check for so that I can reopen the log file using the proper file name, : > "logfile". : > Ultimately, perl will only lose the file handle when logrotate finally deletes the "last file" in the log rotation : > scheme. Unfortunately, I will have lost a week's worth of logs because all that data will have been in the single file. : > Additionally, I'll have several empty log file copies named .1, .2, .3, etc. How can I set perl to NOT follow the file : > when it is renamed by logrotate, such that a condition will be created where I will be able to initialize the : > replacement file? : > : > Thanks!! : > : > - William Kimball : > "Programming is an art-form that fights back!" : > : : Do you want to only monitor the original logfile or logfile.1 as well? : : You can use the perl module, File::Tail for monitoring logfile, even : through logrotate. : : -Robby : : : -- : #------------------------------------------------------- : # Robby Russell, | Sr. Administrator / Lead Programmer : # Command Prompt, Inc. | http://www.commandprompt.com : # [EMAIL PROTECTED] | Telephone: (503) 667.4564 : #------------------------------------------------------- : : -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
