The attached file recreates the problem. It doesn't have to be in a zip. A zero length string is a string (intrinsically or terminated length) with no elements in it. As an object it isn't actually "empty" because it has the intrinsic length value or the terminator(s)?
Anyway, I did a bit more playing and it seems that Analog dummy-spits when there are only zero length strings in the file, one or many. If there is any non-zero length string in the file then Analog is OK. A completely empty file (zero bytes) is also OK. Analog is a great tool, and this problem will only occur very rarely, but occur it has. It would be nice if one could define the file types to include from within a zip (hint). Steve. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jeremy Wadsack Sent: Saturday, 4 June 2005 0413 To: [email protected] Subject: Re: [analog-help] XP implementation crashes reading UNIX style logfiles I am not sure how this dropped off the list, but restoring it for the archives. Steve, I am not sure what a "zero length string" means. Is this a file with a single null character in it? In any event this does sound like a bug. Can you produce a file that unequivovably reproduces this bug? That might help the author pin it down. -- Jeremy Wadsack Seven Simple Machines Steve wrote: >Hi Jeremy, > >Did all the usual things. > >A complication is that all the suspect logs are in many zip files, so >manipulating them is non-trivial. Other analysis programs had >no dramas with them over the years, so I suspected Analog. > >It turns out that it is a special type of file that is the problem. A pseudo >empty file. That is, a file with a single zero length >string in it. Analog doesn't like that at all for some reason. Dead empty >(zero bytes) files are not a problem. > >Why do I have such files? Well I have all the archival error logs in the same >zip files. I haven't been able to work out if Analog >can be told to include only *.access_log files within zip files (tried >"LOGFILE path\*.zip:*.access_log" with no joy), so it reads >all the error logs as well. That doesn't matter because it cant recognise the >data as access data, but when you have a few of them >that (for some reason) have a single zero length string in them, then voila. > >My only solution is to pick through all the zips and delete the suspect error >logs. Have made some progress ..... > >Regards, > >Steve. > >-----Original Message----- >From: Jeremy Wadsack [mailto:[EMAIL PROTECTED] >Sent: Friday, 3 June 2005 0229 >To: [EMAIL PROTECTED]; Support for analog web log analyzer >Subject: Re: [analog-help] XP implementation crashes reading UNIX style log >files > >Steve wrote: > > > >>Analog 6.0 (binary) running on XP with gobs of resources. >> >>When I ask Analog to process a UNIX style log file it crashes. By "UNIX >>style" I mean a log file with LF only EOLs. DOS/Windows >>style log files (with CRLF EOLs) are just fine. By "crashes" I mean stops >>execution and pops up one of those Windows must close >> >> >this > > >>application" type message boxes. 100% repeatable and consistent bug. >> >>I have lots of archival "UNIX style" log files from when my Apache was >>running on Unix. I don't want to have to convert all of them >>if I can avoid it. >> >>My guess is that the Windows implementation of Analog doesn't see the LF only >>EOL as an EOL and tries to read a VERY long line into >>a buffer somewhere until it overwrites something and crashes. Just a guess. >> >>Any simple solutions, or is it the dreaded log file conversion effort? >> >> >> >> > >You might try downloading/installing Analog again? I just tested this >with the log file that ships with Analog (using dos2unix to convert it) >and Analog read it without any problems. If a new copy of Analog still >causes this, can you reproduce the behavior on the sample logfile.log or >is it maybe something else in the logfiles? > >-- >Jeremy Wadsack >Seven Simple Machines > > > > > > > +------------------------------------------------------------------------ | TO UNSUBSCRIBE from this list: | http://lists.meer.net/mailman/listinfo/analog-help | | Usenet version: news://news.gmane.org/gmane.comp.web.analog.general | List archives: http://www.analog.cx/docs/mailing.html#listarchives +------------------------------------------------------------------------
test.access_log
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