Wordpress wordpress site down some time.

My vps use 10~15 wordpress site on 2G Ram, 2 Core SSD 40G.

But site down sometime.

---

The site 20~30 visit per day that not enough 2G Ram and 2Core cpu?

And I check /var/log/php-fpm/www-php-error.log

Code:

22-Aug-2014 05:06:20 UTC] PHP Warning:  require(): Unable to allocate memory for pool. in /home/nginx/domains/domain.com/public/wp-content/themes/nictitate/functions.php on line 53

Code:

[22-Aug-2014 15:43:38 Australia/Brisbane] PHP Notice:  Undefined property: JSite::$registeredurlparams in /home/nginx/domains/domain.com/public/libraries/joomla/cache/cache.php on line 639

than change memory limit in php.ini

Code:

; Maximum amount of memory a script may consume (128MB)
; http://php.net/memory-limit
memory_limit = 1024M

nginx.conf

Code:

user              nginx nginx;
worker_processes 2;
worker_priority -10;

worker_rlimit_nofile 260000;
timer_resolution 100ms;

error_log         logs/error.log;

pid               logs/nginx.pid;
pcre_jit on;

events {
    worker_connections  2048;
    accept_mutex on;
    accept_mutex_delay 100ms;
    use epoll;
    #multi_accept on;
}

http {
include /usr/local/nginx/conf/pagespeedadmin.conf;
include /usr/local/nginx/conf/fastcgi_param_https_map.conf;

log_format      main    '$remote_addr - $remote_user [$time_local] $request '
                '"$status" $body_bytes_sent "$http_referer" '
                '"$http_user_agent" "$http_x_forwarded_for" "$gzip_ratio"'
                ' "$connection" "$connection_requests" "$request_time"';

access_log logs/access.log combined buffer=32k;

    index  index.php index.html index.htm;
    include       mime.types;
    default_type  application/octet-stream;
    charset utf-8;

        sendfile on;
        #sendfile_max_chunk 1m;
        tcp_nopush  on;
        tcp_nodelay off;
        server_tokens off;
        server_name_in_redirect off;
       
        keepalive_timeout  10;
        keepalive_requests 100;
        lingering_time 20s;
        lingering_timeout 5s;
        keepalive_disable msie6;

    gzip on;
    gzip_vary   on;
    gzip_disable "MSIE [1-6]\.";
        gzip_static on;
        gzip_min_length   1400;
        gzip_buffers      32 8k;
        gzip_http_version 1.0;
        gzip_comp_level 5;
        gzip_proxied    any;
        gzip_types text/plain text/css text/xml application/javascript application/x-javascript application/xml application/xml+rss application/ecmascript application/json image/svg+xml;

client_body_buffer_size 256k;
client_body_in_file_only off;
client_body_timeout 60s;
client_header_buffer_size 64k;
## how long a connection has to complete sending
## it's headers for request to be processed
client_header_timeout  20s;
client_max_body_size 10m;
connection_pool_size  512;
directio  4m;
ignore_invalid_headers on;      
large_client_header_buffers 8 64k;
output_buffers   8 256k;
postpone_output  1460;
proxy_temp_path  /tmp/nginx_proxy/;
request_pool_size  32k;
reset_timedout_connection on;
send_timeout     60s;
types_hash_max_size 2048;
server_names_hash_bucket_size 64;

# for nginx proxy backends to prevent redirects to backend port
# port_in_redirect off;

open_file_cache max=10000 inactive=30s;
open_file_cache_valid 120s;
open_file_cache_min_uses 2;
open_file_cache_errors off;
open_log_file_cache max=4096 inactive=30s min_uses=2;

## limit number of concurrency connections per ip to 16
## add to your server {} section the next line
## limit_conn limit_per_ip 16;
## uncomment below line allows 500K sessions
# limit_conn_log_level error;
#######################################
# use limit_zone for Nginx <v1.1.7 and lower
# limit_zone $binary_remote_addr zone=limit_per_ip:16m;
#######################################
# use limit_conn_zone for Nginx >v1.1.8 and higher
# limit_conn_zone $binary_remote_addr zone=limit_per_ip:16m;
#######################################

include /usr/local/nginx/conf/conf.d/*.conf;
}

I need your your some opinion.

Thank you for watching

 

Im turn off apc and memcache.
Will upgrade memory than use it again.

Can I ask to one more?

How much memory need for my 15 wordpress web site? Can you advice for me?

Thank you @eva2000

 

Every Site use WP-super-cache, akismet, xml-sitemap, jetpack, some security plugin. etc... 10~15 plugin use per site.

Minium 4G.. lol

Than setting apc shm.memory for 256M and php.ini memory_limit = 2000M for 4G vps?

 

lol, APC is high than php.ini
Thank you @eva2000

Really helpuful for me

 

yes, I was change setting up 1024M for APC and 256M in php.ini

Than I fond some page System Cache Entries in myapc.php

It's really interesting lol