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I have 3 log analyzer tools pre-installed on my server. In your opinion, which of the 3 analyzer tools do you find best?

My Objective: basically to analyze the error log file

Software Installed:

* Analog
* Awstats
* Webalizer

I did read through this question --> Log Analyzer for Apache

Thank you.

Community
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H. Ferrence
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2 Answers2

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The three log analysers you list (Analog, Awstats & Webalizer) don't do much with Apache Error logs.

I've used ScanErrLog to summarise the Apache error_log file for several years now. I run it from Cron once or twice a day, and it remembers where it finished, to be able to pick up and add to the output. Usually, I have it produce a HTML page with counts and URLs of problems. I can produce other formats though.

tovmeod
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Alister Bulman
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Looked around for an apache error log parser until I found this command that will parse your error file ordered by error occurrences:

sed 's^\[.*\]^^g' error.log | sed 's^\, referer: [^\n]*^^g' | sort | uniq -c | sort -n

Output: error occurrences - error text

1 AH00126: Invalid URI in request GET HTTP/1.1
1 PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 32 bytes) in /var/www/con/libraries/joomla/database/driver/mysql.php on line 425
108 PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 512 bytes) in /var/www/es/libraries/joomla/database/driver/mysql.php on line 425
156 PHP Notice: Undefined index: select in /var/www/con/cli/form_output.php on line 3
156 PHP Notice: Undefined index: inputfrom_value in /var/www/con/cli/form_output.php on line 2
157 PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 83 bytes) in /var/www/es/libraries/joomla/database/driver/mysql.php on line 425
202 PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 32 bytes) in /var/www/es/libraries/joomla/database/driver/mysql.php on line 425
218 PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 80 bytes) in /var/www/es/libraries/joomla/database/driver/mysql.php on line 425
316 PHP Notice: Undefined index: in /var/www/con/cli/unit.php on line 513
520 PHP Fatal error: Allowed memory size of 536870912 bytes exhausted (tried to allocate 81 bytes) in /var/www/es/libraries/joomla/database/driver/mysql.php on line 425

Gist: https://gist.github.com/marcanuy/a08d5f2d9c19ba621399

marcanuy
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