Mercurial > hg > nginx-quic
view auto/have @ 6033:8e66a83d16ae
Core: added cyclic memory buffer support for error_log.
Example of usage:
error_log memory:16m debug;
This allows to configure debug logging with minimum impact on performance.
It's especially useful when rare crashes are experienced under high load.
The log can be extracted from a coredump using the following gdb script:
set $log = ngx_cycle->log
while $log->writer != ngx_log_memory_writer
set $log = $log->next
end
set $buf = (ngx_log_memory_buf_t *) $log->wdata
dump binary memory debug_log.txt $buf->start $buf->end
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Thu, 19 Mar 2015 19:29:43 +0300 |
parents | d620f497c50f |
children |
line wrap: on
line source
# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. cat << END >> $NGX_AUTO_CONFIG_H #ifndef $have #define $have 1 #endif END