Apache access log

Question

I want to ask what does the last number on each request in the access log mean?

127.0.0.1 - - [27/Jul/2014:12:49:31 +0300] "GET /battleWS/startServer/11 HTTP/1.1" 200 159

In this case it is 159, occasionally it's empty - (dash). Can someone tell me what this is? Thanks!

It's the size of the object returned to the client in bytes. — The Blue Dog, Jul 27 '14 at 09:54
That's what I thought as well but the fact that scripts are shown as `-` made me think twice. Thanks and why not post it as an answer? — php_nub_qq, Jul 27 '14 at 09:55
Because then I'd have to go and find some links to the documentation and I couldn't be bothered. ;) — The Blue Dog, Jul 27 '14 at 10:02

score 1 · Accepted Answer · answered Jul 27 '14 at 09:55

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Documentation says: (%b) The last part indicates the size of the object returned to the client, not including the response headers. If no content was returned to the client, this value will be "-". To log "0" for no content, use %B instead.

The reason you see a "-" is because it asks if the resource has changed since last time, so it doesn't actually fetch it again.

Google is a lot faster than SO for such simple questions. :)

answered Jul 27 '14 at 09:55

Brunis

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Oh did I try. I don't know why I'm having such a hard time with `apache` and `mysql` documentation :X – php_nub_qq Jul 27 '14 at 09:59

score 1 · Answer 2 · edited May 23 '17 at 11:57

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The last number which is returned on the apache log in the object size which is returned to the client ..

Understand more about the acces log here.

edited May 23 '17 at 11:57

Community

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answered Jul 27 '14 at 09:56

Avinash Babu

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Apache access log

2 Answers2