What a relief! Thanks Maxim!

On Thu, Jan 12, 2017 at 6:38 PM, Maxim Dounin <mdounin@mdounin.ru> wrote:

> Hello!
>
> On Thu, Jan 12, 2017 at 03:12:30PM +0300, Vladimir Kozyrev wrote:
>
> > My issue is that I add server {} and upstream {} directives dynamically
> to
> > /etc/nginx/conf.d/dynamic_vhost.conf.
> > Once the file grew, nginx stopped working and I increased
> hash_bucket_size
> > parameter to make it work again.
> > Is there a way to calculate what value should I set to hash_bucket_size
> > parameter for a given number of server {} and upstream {} directives? At
> > some point, the file will grow big enough to stop nginx from working once
> > again.
> > Any advice on how can I prevent that from happening will be appreciated.
>
> The value of server_names_hash_bucket_size limits the maximum
> length of a server_name used. If you use long server names, set
> it to the maximum name length expected (plus some additional space
> for two pointers).
>
> Everything else is not fatal when constructing hashes since nginx
> 1.5.13. If nginx fails to build an optimal hash with bucket_size
> and max_size configured, it simply ignores bucket_size and logs an
> appropriate warning (non-fatal).
>
> Some additional information about configuring hashes can be found
> at http://nginx.org/en/docs/hash.html.
>
> --
> Maxim Dounin
> http://nginx.org/
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>
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