Opened 10 years ago
Closed 10 years ago
#631 closed enhancement (wontfix)
server_names_hash_bucket_size seems too low by default
| Reported by: | Alexander Shtuchkin | Owned by: | |
|---|---|---|---|
| Priority: | minor | Milestone: | |
| Component: | nginx-core | Version: | 1.7.x |
| Keywords: | Cc: | ||
| uname -a: | Linux DigitalOcean1 3.2.0-23-virtual #36-Ubuntu SMP Tue Apr 10 22:29:03 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux | ||
| nginx -V: |
nginx version: nginx/1.7.5
TLS SNI support enabled configure arguments: --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro' --prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock-path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp-path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp-path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with-pcre-jit --with-ipv6 --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module --with-http_auth_request_module --with-http_addition_module --with-http_dav_module --with-http_geoip_module --with-http_gzip_static_module --with-http_image_filter_module --with-http_spdy_module --with-http_sub_module --with-http_xslt_module --with-mail --with-mail_ssl_module --add-module=/build/buildd/nginx-1.7.5/debian/modules/nginx-auth-pam --add-module=/build/buildd/nginx-1.7.5/debian/modules/nginx-dav-ext-module --add-module=/build/buildd/nginx-1.7.5/debian/modules/nginx-echo --add-module=/build/buildd/nginx-1.7.5/debian/modules/nginx-upstream-fair --add-module=/build/buildd/nginx-1.7.5/debian/modules/ngx_http_substitutions_filter_module |
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Description
I'm using nginx on Digital Ocean with default Ubuntu distribution and nginx development ppa. I also saw the same behavior on multiple other cloud providers.
The problem is that even when serving small number of domains (~3-5), nginx gives me the [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_size: 32 error and I have to change otherwise perfect default configuration.
Can you make the size of server name hash larger by default, or, even better, calculate optimal size at runtime? Pretty annoying that the server cannot determine such things by itself.
This is probably related to #352.
$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 2 model name : QEMU Virtual CPU version 1.0 stepping : 3 microcode : 0x1 cpu MHz : 2299.998 cache size : 4096 KB fpu : yes fpu_exception : yes cpuid level : 4 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm up rep_good nopl pni vmx cx16 popcnt hypervisor lahf_lm bogomips : 4599.99 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management:
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The name you are trying to use is likely larger than what fits into 32 bytes - which is the optimal size as calculated by nginx according to CPU ID.