Re: apache delayed log write ?

damcey@xxxxxxxxx wrote:
I'm wondering if it's possible to delay write of CustomLog directive
instead of writting to file as soon as request is made ? I believe it
should be possible to pipe data to external program that will store
log in buffer and then write it after a delay, say every 10 seconds
but I'm not aware of program that is able to do this. Any help is

buffered logging is already available in apache.

for apache 2.0.41+ and newer, buffered logging is a mod_log_config configuration option that you can enable via httpd.conf:

http://httpd.apache.org/docs/2.2/mod/mod_log_config.html#bufferedlogs

The BufferedLogs directive causes mod_log_config to store several log
entries in memory and write them together to disk, rather than writing
them after each request. On some systems, this may result in more
efficient disk access and hence higher performance. It may be set only
once for the entire server; it cannot be configured per virtual-host.

for apache 1.3b2 -> 2.0.40, you can probably enable log buffering in httpd.h by setting:
#define BUFFERED_LOGS
or by adding -DBUFFERED_LOGS as a flag to your c compiler.

hth
--sean

--
sean dreilinger - http://durak.org/sean/
.

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