Rotate Apache HTTP Server log files on Windows

Peter Lorenzen
16/08-2013

The Apache HTTP Server does not rotate log files.

On Red Hat Linux, Oracle Linux etc. rotation of the Apache log files are handled by cron.daily and logrotate.

On Windows it is a bit more difficult because of the way open files are locked. You have two options, either stop Apache and do the rotate yourself or use an Apache feature called Piped Logs.

Instead of writing to log files Apache can write to a pipe. Another program can then read from the pipe and handle the logging.

The Apache HTTP Server includes a rotatelogs executable that can be used.

Below are some examples of how you use piped logs and rotatelogs.

#ErrorLog "logs/error.log"
ErrorLog "|bin/rotatelogs.exe -l D:/Apache2.2/logs/error.%Y.%m.%d.log 86400"

#CustomLog "logs/access.log" common
CustomLog "|bin/rotatelogs.exe -l D:/Apache2.2/logs/access.%Y.%m.%d.log 86400" common

#TransferLog "D:/Apache2.2/logs/ssl_access.log"
TransferLog "|bin/rotatelogs.exe -l D:/Apache2.2/logs/ssl_access.%Y.%m.%d.log 86400"

#CustomLog "D:/Apache2.2/logs/ssl_request.log" \
#          "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"
CustomLog "|bin/rotatelogs.exe -l D:/Apache2.2/logs/ssl_request.%Y.%m.%d.log 86400" \
          "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"

This will result in log files named like this:
error.2013.08.15.log
access.2013.08.15.log
ssl_access.2013.08.15.log
ssl_request.2013.08.15.log

A new log file will be created every 24 hours.

Now all you have to do is to find a way to delete old log files.

I am no PowerShell expert but this get the job done.

Get-ChildItem 'D:/Apache2.2/logs/*.log' | Where {$_.lastwritetime -lt (Get-Date).AddDays(-30)} | Remove-Item -Force

While you test you can use the -WhatIf parameter. It will tell you which files will be deleted but it will not delete anything:

Get-ChildItem 'D:/Apache2.2/logs/*.log' | Where {$_.lastwritetime -lt (Get-Date).AddDays(-30)} | Remove-Item -Force -WhatIf

{ 29 comments… read them below or add one }

gill November 13, 2013 at 17:28

Hi Peter
thanks for sharing this….I have been running all around for this and finally found it here….But its not working me, please suggest, I have all 3 ways but still get an error message while starting apache “>>> ErrorLog takes one argument, The filename of the error log” in windows event log.

I tried all these but no luck..
ErrorLog “|bin/rotatelogs.exe -l “C:/Program Files/CollabNet/Subversion Server/httpd/logs/error.%Y.%m.%d.log” 86400″ common

ErrorLog “|bin/rotatelogs.exe -l C:/Program Files/CollabNet/Subversion Server/httpd/logs/error.%Y.%m.%d.log” 86400 common

ErrorLog “C:\Program Files\CollabNet\Subversion Server\httpd\bin\rotatelogs.exe -l C:/Program Files/CollabNet/Subversion Server/httpd/logs/error.%Y.%m.%d.log” 86400 common

Thanks again

Peter Lorenzen November 13, 2013 at 17:38

Hi,
You use:
ErrorLog “|bin/rotatelogs.exe -l “C:/Program Files/CollabNet/Subversion Server/httpd/logs/error.%Y.%m.%d.log” 86400″ common
It should be:
ErrorLog “|bin/rotatelogs.exe -l C:/Program Files/CollabNet/Subversion Server/httpd/logs/error.%Y.%m.%d.log 86400″ common

But this will probably still not work because there is a space in the path. You can create symlink and use that instead.
For example:
C:/Program Files/CollabNet
mklink /d SubversionServer “Subversion Server”

Regards Peter

gill November 13, 2013 at 17:46

thanks Peter for such a quick response…
does that mean i need to create symlink for Program Files aswell, Let me try and will update you..

Peter Lorenzen November 13, 2013 at 18:02

Yes sorry did not notice there were two spaces in the path.

gill November 13, 2013 at 18:07

You made my day Peter.. created one symlink as suggested by you and works now…..I hope my log rotation works now…thanks once again…wish you all the best

gill November 13, 2013 at 18:08

just an update ..for symlink i tried mutiple commands …but this one worked
mklink /D SubversionServer “c:Subversion Server”

Shah November 29, 2013 at 16:30

Hi Peter,

First of all thanks, I too was searching for this for ages.

I had the same issue as Gill with spaces in the path and by trial and error managed to get it to work by just enclosing the path in single quotes, so using Gill’s path it would be :-

ErrorLog “|bin/rotatelogs.exe -l ‘C:/Program Files/CollabNet/Subversion Server/httpd/logs/error.%Y.%m.%d.log’ 86400″ common

Hari January 15, 2014 at 12:56

Hi,

I have implemented log rotation in Windows server 2003 R2 as shown below, but it is not working.
CustomLog “| E:/apache/bin/rotatelogs.exe -l E:/apache/logs/access.%Y.%m.%d.log 86400″ combined
ErrorLog “|E:/apache/bin/rotatelogs.exe -l E:/apache/logs/error.%Y.%m.%d.log 86400″

Could you please help.

Thanks in advance.

Peter Lorenzen January 15, 2014 at 21:22

Hi Hari,

It looks like you are using the wrong quotes character. You should use " not “ or ”. But it might just be a copy/past or display error :-)
Regards Peter

Hari January 16, 2014 at 03:50

Dear Peter,
Thank you for your prompt response.
I was trying with the correct quotes as below:
ErrorLog “|E:/apache/bin/rotatelogs.exe -l E:/apache/logs/error.%Y.%m.%d.log 86400″.
I dint do copy/paste.
Please suggest me any other possible errors
could you please clarify me that, whether we can implement rotate logs function independent of the version of apache .
Requesting your kind help to troubleshoot the issue.

Thanks
Hari.

Peter Lorenzen January 16, 2014 at 10:27

I have only used this for version 2.2.20 and above. Which error do you get? Can you see anything in the error log? Can you see anything in the Windows Event log?

Hari February 5, 2014 at 09:04

Hi Peter

Apologies for late reply.
I checked event log and error log , i dont see any errors.
Firstly the logs are not updating if i edit the the httpd.conf file as below.
As shown below, in server1 and server2 the rotation has been completed, but in server3 and 4 it is not done.
Kindly help
==================================================
server1
D:\wamp\bin\apache\Apache2.2.11\conf

ErrorLog “|bin/rotatelogs.exe -l E:/wamp/logs/apache_error.log.%Y.%m.%d.log 86400″

#CustomLog “e:/wamp/logs/access.log” common

CustomLog “|bin/rotatelogs.exe -l E:/wamp/logs/apache_access.log.%Y.%m.%d.log 86400″ common

==================================================================
server2

#ErrorLog “D:/wamp/logs/apache_error.log”

ErrorLog “|bin/rotatelogs.exe -l D:/wamp/logs/apache_error.log.%Y.%m.%d.log 86400″

CustomLog “|bin/rotatelogs.exe -l D:/wamp/logs/apache_access.log.%Y.%m.%d.log 86400″ common
======================================================
server3
E:\Apache\conf

ErrorLog logs/error.log

ErrorLog “|bin/rotatelogs.exe -l E:/Apache/logs/apache_error.log.%Y.%m.%d.log 86400″

CustomLog “|bin/rotatelogs.exe -l E:/Apache/logs/apache_access.log.%Y.%m.%d.log 86400″ common
========================================
server4

E:\apache\conf

ErrorLog logs/error.log

ErrorLog “|bin/rotatelogs.exe -l E:/apache/logs/apache_error.log.%Y.%m.%d.log 86400″

CustomLog “|bin/rotatelogs.exe -l E:/apache/logs/apache_access.log.%Y.%m.%d.log 86400″ common
==============================

Yvon February 8, 2014 at 17:31

Hi Peter,

Do you know why i have a cmd.exe window opening when i use rotatelogs for access ??
Can’t close it.
Thanks for response.

Yvon

Peter Lorenzen February 9, 2014 at 15:26

Sorry Yvon,

I don’t know. I can see others have had the same problem but I have not found any solution.
Regards Peter

Peter Lorenzen February 9, 2014 at 15:32

Hi Hari,

The only idea I have is to input the full path to the rotatelogs.exe, to see if that makes a difference.
Regards Peter

Hari February 10, 2014 at 04:18

Hi Peter,

I have tried even with full path to the rotatelogs.exe, but that doesnt work out.
K, fine..Thank you peter.

Tilo February 18, 2014 at 19:51

Could this work? To overwrite weekly and limit the growth?

CustomLog “|bin/rotatelogs.exe -l logs/access.%A.log 15M” common

Peter Lorenzen February 18, 2014 at 20:22

Sorry Tilo I have never tried that. I do not work much on Windows and I have only tried what I put in the post :-)
Regards Peter

Tilo February 18, 2014 at 20:23

never mind, log will not get overwritten it seems
https://issues.apache.org/bugzilla/show_bug.cgi?id=51081

Alberto May 5, 2014 at 13:22

I think this tool can really be useful to delete log or obsolete files from your servers:
https://sourceforge.net/projects/autodeletions/

Peter Lorenzen May 5, 2014 at 20:20

Thanks for the tip Alberto

lucky May 20, 2014 at 16:41

can you help me with aapche server log file for 2-3 months, i need it for my research..
thanx in advance
lucky

Naveen Iyer May 27, 2014 at 11:28

Thanks Peter :)

Really appreciate what you shared, very helpful, but there’s an odd issue for me now. The logs are rotating every 24 hours, but the start and end time in the logs are 10:00:00 AM and 9.59.59 AM respectively. This does not even match with the time when apache services were restarted for the change to come into effect (around 2AM). Any suggestions?

Naveen Iyer May 27, 2014 at 11:41

Well just explored a bit further and found -l missing in my command :) -l uses local time rather than GMT.

CustomLog “|bin/rotatelogs -l /var/logs/logfile.%Y.%m.%d 86400″ common

http://httpd.apache.org/docs/2.2/programs/rotatelogs.html

abdul June 24, 2014 at 17:15

I have configured the log rotation as below
#CustomLog logs/access.log common
CustomLog “|bin/rotatelogs.exe -l logs/access.%Y.%m.%d.log 86400″ common

But the logs are rotated by the oldest date with the filename ‘access.log’ and recent log as eg: access.2014.06.24.log (of today) but i think it should the opposite.

Need assistance please

Peter Lorenzen June 25, 2014 at 12:35

Hi Abdul,
The access.log file is the original file and should be ignored.
Regards Peter

Vikram August 6, 2014 at 16:23

Hi Peter,

Thanks for posting wonderful info.

Errorlog works

ErrorLog “|bin/rotatelogs.exe -l D:/Dev/Apache2.2/logs/error.%Y.%m.%d.%H_%M_%S.log 60″

Not sure why but Custom log is not working.

CustomLog “|bin/rotatelogs.exe -l D:/Dev/Apache2.2/logs/access.%Y.%m.%d.%H_%M_%S.log 60″ common

Even though my access.log file is of 8 MB.

Once I update the httpd.conf then I do restart my Apache Services after that I do that Error.log file gets updated but it doesn’t create the access.log file.

But when I put below entry alone.

ErrorLog “|bin/rotatelogs.exe -l D:/Dev/Apache2.2/logs/access.%Y.%m.%d.%H_%M_%S.log 60″ it creates the access.log file with timestamp.

Could you please help me to setup this.

Thanks in advance.

Regards,
Vikram

Peter Lorenzen August 13, 2014 at 17:27

Hi Vikram,
I think the access log is first created when there is a request to the server.
Regards Peter

Soumya August 26, 2014 at 05:28

Hi Peter,
Thank for the tutorial. Every thing is working fine. I made it to work in two servers and in my local PC.
But, I had a issue when tried for the next time.
Once configuring httpd.conf, Apache does creates rotated log files for both access.log and error.log after restarting, but it does not creates anymore log in the actual error.log file, whereas the logs is updated in the rotated log file.
Only after removing rotate log command for Error Log from httpd.conf, again it works fine as usual.
Please Help.

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