Lighttpd

lighty version 1.5

Problem:
2009-xx-xx xx:xx:xx (server.c:744) NOTE: a request for /xxx.. timed out after writing xxx bytes. We waited xxx seconds. If this a problem increase server.max-write-idle

This can lead to huge logs and some irritations if you follow the advice and ever increase the server.max-write-idle.

This log is mostly harmless, it indicates a request was interrupted and didn´t finish within server.max-write-idle seconds. This can be because of browser was closed, user surfed a different site, user/server has slow connection or <whatever> reason.

But! This can also indicate other problems like bandwidth exhausted, strange settings at keepalive and alike.

Therefore the default is leaving it enabled, but also offer a silence-option soon if you know this is somehow normal behaviour for your site/setup.