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nginx & php-fpm [debug] 11: Resource temporarily unavailable



The 2019 Stack Overflow Developer Survey Results Are InBlank Page: wordpress on nginx+php-fpmWhy does try_files append each path together?phpmyadmin having problems on nginx and php-fpm on RHEL 6Nginx php-fpm pool being blocked and stop respondingNGINX don't parse .php5 as .phpnginx rewrite throw 404 with last and breaknginx PHP files downloading instead of executingCodeIgniter nginx rewrite rules for i8ln URL'sHow to configure nginx to serve one site from two different document root and using different php depending on URLNGINX virtual host config for Magento2 in a subfolder



.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;








5















New Development



The core php error logs are below, but the site specific error logs show this. The memory on my php.ini file is :



memory_size 1024;



so it's not php's memory limit. I've also disabled all my plugin's, so it's not the memory limit that is on my security plugin.



2014/12/13 16:12:40 [error] 28264#0: *212 FastCGI sent in stderr: "PHP message: PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 71 bytes) in /var/www/..



I am having troubles with a wordpress plugin running a full batch of imports. I get this error when I enable the nginx debug. The result is I get an immediate 404 error afterwards and I am unable to fully import my data.



I am pretty sure this is a bug, but I can't find the right answer to fix it.



Please Help.



What I have done so far:



  • It looked like a nginx bug and my nginx version was old, so I upgraded. No change.

  • It looked and still looks like it could be related to php-fpm. I've upgraded. No change.

  • I've disabled all of my plugins. No Change.

Server



  • CentOS 6.0

  • nginx v 1.0.15

  • PHP-FPM v 5.3.3 (fpm-fcgi)

  • Webserver running 3 very low traffic sites

  • PHP-FPM is set to ondemmand

PHP.ini config:



  • pm = ondemand

  • pm.process_idle_timeout = 50s

  • pm.max_children = 20

  • pm.start_servers = 1

  • pm.min_spare_servers = 3

  • pm.max_spare_servers = 5

  • pm.max_requests = 1024

  • pm.status_path = /status

I am unable to post my logs, so please check out the comparison



Nginx Log:



[12-Dec-2014 06:35:49.398315] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:50.399474] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:51.400765] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:52.402053] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.403346] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.417762] DEBUG: pid 13384, fpm_got_signal(), line 72: received SIGCHLD
[12-Dec-2014 06:35:53.417836] DEBUG: pid 13384, fpm_children_bury(), line 254: [pool www] child 18327 has been killed by the process managment after 52.123053 seconds from start
[12-Dec-2014 06:35:53.417863] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events
[12-Dec-2014 06:35:54.404978] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 0 spare children
[12-Dec-2014 06:35:54.687559] DEBUG: pid 13384, fpm_children_make(), line 421: [pool www] child 18397 started




[12-Dec-2014 06:35:54.687593] DEBUG: pid 13384, fpm_pctl_on_socket_accept(), line 536: [pool www] got accept without idle child available .... I forked
[12-Dec-2014 06:35:54.687602] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events




[12-Dec-2014 06:35:55.406455] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:56.407633] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:57.408949] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:58.410111] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children


PHP log:



2014/12/12 06:35:02 [debug] 13350#0: *223 http header done
2014/12/12 06:35:54 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1
2014/12/12 06:35:54 [debug] 13350#0: posix_memalign: 0000000002273A80:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 accept: 66.249.67.123 fd:3
2014/12/12 06:35:54 [debug] 13350#0: *226 event timer add: 3: 60000:1418387814684
2014/12/12 06:35:54 [debug] 13350#0: *226 epoll add event: fd:3 op:1 ev:80000001
2014/12/12 06:35:54 [debug] 13350#0: accept() not ready (11: Resource temporarily unavailable)
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 0000000002274AF0:1296
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 0000000002273BE0:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 000000000232F4B0:131072
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 00000000021F7590:4096 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request line
2014/12/12 06:35:54 [debug] 13350#0: *226 recv: fd:3 315 of 131072
2014/12/12 06:35:54 [debug] 13350#0: *226 http request line: "GET /stores/giltcity/page/78/ HTTP/1.1"
2014/12/12 06:35:54 [debug] 13350#0: *226 http uri: "/stores/giltcity/page/78/"
2014/12/12 06:35:54 [debug] 13350#0: *226 http args: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http exten: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request header line
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Host: mydiscountman.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Connection: Keep-alive"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "From: googlebot(at)googlebot.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept-Encoding: gzip,deflate"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header done
2014/12/12 06:37:11 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1


Nginx Global Config /etc/nginx/nginx.conf :



user apache;
worker_processes 1;
pid /var/run/nginx.pid;


events 
worker_connections 768;
multi_accept on;
use epoll;


http 

# Let NGINX get the real client IP for its access logs
set_real_ip_from 127.0.0.1;
real_ip_header X-Forwarded-For;

# Basic Settings
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 20;
client_max_body_size 15m;
client_body_timeout 60;
client_header_timeout 60;
client_body_buffer_size 128k;
client_header_buffer_size 128k;
large_client_header_buffers 4 16k;
send_timeout 60;
reset_timedout_connection on;
types_hash_max_size 8192;
server_tokens off;

# server_names_hash_bucket_size 64;
# server_name_in_redirect off;

include /etc/nginx/mime.types;
default_type application/octet-stream;

# Logging Settings
# access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log debug;

# Log Format
log_format main '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

# Gzip Settings
gzip on;
gzip_static on;
gzip_disable "msie6";
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_min_length 512;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/css text/javascript text/xml text/plain text/x-component 
application/javascript application/x-javascript application/json 
application/xml application/rss+xml font/truetype application/x-font-ttf 
font/opentype application/vnd.ms-fontobject image/svg+xml;

# Virtual Host Configs
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;



Nginx Site Config /etc/nginx/sites-available/testme :



server pot


PHP.ini



 [PHP]

 ;;;;;;;;;;;;;;;;;;;
 ; Quick Reference ;
 ;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_NOTICE

 extension=apc.so

 ;;;;;;;;;;;;;;;;;;;;
 ; Language Options ;
 ;;;;;;;;;;;;;;;;;;;;

 engine = On
 short_open_tag = Off
 asp_tags = Off
 precision = 14
 y2k_compliance = On
 zlib.output_compression = Off
 implicit_flush = Off
 unserialize_callback_func =
 serialize_precision = 100

 safe_mode = Off
 safe_mode_gid = Off
 safe_mode_include_dir =
 safe_mode_exec_dir =
 safe_mode_allowed_env_vars = PHP_
 safe_mode_protected_env_vars = LD_LIBRARY_PATH
 disable_functions =
 disable_classes =
 realpath_cache_size = 16k
 realpath_cache_ttl = 120

 ;;;;;;;;;;;;;;;;;
 ; Miscellaneous ;
 ;;;;;;;;;;;;;;;;;

 expose_php = On

 ;;;;;;;;;;;;;;;;;;;
 ; Resource Limits ;
 ;;;;;;;;;;;;;;;;;;;

 max_execution_time = 600
 set_time_limit = 600
 max_input_time = 300
 memory_limit = 2048M

 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Error handling and logging ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_DEPRECATED
 display_errors = Off
 display_startup_errors = Off
 log_errors = On
 log_errors_max_len = 1024
 ignore_repeated_errors = Off
 ignore_repeated_source = Off
 report_memleaks = On
 track_errors = Off
 html_errors = Off
 error_log = /var/log/php-fpm/www-error.log


 ;;;;;;;;;;;;;;;;;
 ; Data Handling ;
 ;;;;;;;;;;;;;;;;;

 variables_order = "GPCS"
 request_order = "GP"
 register_globals = Off
 register_long_arrays = Off
 register_argc_argv = Off
 auto_globals_jit = On
 post_max_size = 384M
 magic_quotes_gpc = Off
 magic_quotes_runtime = Off
 magic_quotes_sybase = Off
 auto_prepend_file =
 auto_append_file =
 default_mimetype = "text/html"

 ;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Paths and Directories ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;

 doc_root =
 user_dir =
 enable_dl = Off
 cgi.fix_pathinfo=0

 ;;;;;;;;;;;;;;;;
 ; File Uploads ;
 ;;;;;;;;;;;;;;;;

 file_uploads = On
 upload_max_filesize = 512M

 ;;;;;;;;;;;;;;;;;;
 ; Fopen wrappers ;
 ;;;;;;;;;;;;;;;;;;

 allow_url_fopen = On
 allow_url_include = Off
 default_socket_timeout = 120

 ;;;;;;;;;;;;;;;;;;;;;;
 ; Dynamic Extensions ;
 ;;;;;;;;;;;;;;;;;;;;;;

 ;;;;;;;;;;;;;;;;;;;
 ; Module Settings ;
 ;;;;;;;;;;;;;;;;;;;

 [Date]

 date.timezone = America/Chicago

 [filter]

 [iconv]

 [intl]

 [sqlite]

 [sqlite3]

 [Pcre]

 [Pdo]

 [Phar]

 [Syslog]

 define_syslog_variables = Off

 [mail function]

 SMTP = localhost
 smtp_port = 25
 sendmail_path = /usr/sbin/sendmail -t -i
 mail.add_x_header = On

 [SQL]

 sql.safe_mode = Off

 [ODBC]

 odbc.allow_persistent = On
 odbc.check_persistent = On
 odbc.max_persistent = -1
 odbc.max_links = -1
 odbc.defaultlrl = 4096
 odbc.defaultbinmode = 1

 [MySQL]

 mysql.allow_persistent = On
 mysql.max_persistent = -1
 mysql.max_links = -1
 mysql.default_port =
 mysql.default_socket =
 mysql.default_host =
 mysql.default_user =
 mysql.default_password =
 mysql.connect_timeout = 300
 mysql.trace_mode = Off

 [MySQLi]

 mysqli.max_links = -1
 mysqli.default_port = 3306
 mysqli.default_socket =
 mysqli.default_host =
 mysqli.default_user =
 mysqli.default_pw =
 mysqli.reconnect = Off

 [PostgresSQL]

 pgsql.allow_persistent = On
 pgsql.auto_reset_persistent = Off
 pgsql.max_persistent = -1
 pgsql.max_links = -1
 pgsql.ignore_notice = 0
 pgsql.log_notice = 0

 [Sybase-CT]

 sybct.allow_persistent = On
 sybct.max_persistent = -1
 sybct.max_links = -1
 sybct.min_server_severity = 10
 sybct.min_client_severity = 10

 [bcmath]

 bcmath.scale = 0

 [browscap]

 [Session]

 session.save_handler = files
 session.save_path = "/var/lib/php/session"
 session.use_cookies = 1
 session.use_only_cookies = 1
 session.name = PHPSESSID
 session.auto_start = 0
 session.cookie_lifetime = 0
 session.cookie_path = /
 session.cookie_domain =
 session.cookie_httponly = 
 session.serialize_handler = php
 session.gc_probability = 1
 session.gc_divisor = 1000
 session.gc_maxlifetime = 1440
 session.bug_compat_42 = Off
 session.bug_compat_warn = Off
 session.referer_check =
 session.entropy_length = 0
 session.entropy_file =
 session.cache_limiter = nocache
 session.cache_expire = 180
 session.use_trans_sid = 0
 session.hash_function = 0
 session.hash_bits_per_character = 5
 url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"

 [MSSQL]

 mssql.allow_persistent = On
 mssql.max_persistent = -1
 mssql.max_links = -1
 mssql.min_error_severity = 10
 mssql.min_message_severity = 10
 mssql.compatability_mode = Off
 mssql.timeout = 300
 mssql.secure_connection = Off




 [Tidy]

 tidy.clean_output = Off

 [soap]

 soap.wsdl_cache_enabled=1
 soap.wsdl_cache_dir="/tmp"
 soap.wsdl_cache_ttl=86400





nginx php-fpm







share|improve this question
















bumped to the homepage by Community♦ 4 hours ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.















  • can you add the nginx config?

    – xofer
    Dec 12 '14 at 17:07











  • I have no idea what the answer is, but I'd like to thank you for posting a great first question!

    – Hyppy
    Dec 12 '14 at 17:25











  • Thanks Hyppy! This is a tough one. Lots of moving pieces.

    – Thomas
    Dec 12 '14 at 19:25











  • so, the forking command is not a bug. The PHP process stopping 100% due to the child being killed is the fundamental problem. Why or how I am still unsure. Any ideas anyone?

    – Thomas
    Dec 13 '14 at 21:50







  • 1





    so it's not php's memory limit. You are drawing false conclusions. The error message says that PHP is running out of memory (at 256mb), the memory limit can be changed at runtime. There is no nginx or PHP fpm complexity/relevance here.

    – AD7six
    Dec 14 '14 at 13:47


















5















New Development



The core php error logs are below, but the site specific error logs show this. The memory on my php.ini file is :



memory_size 1024;



so it's not php's memory limit. I've also disabled all my plugin's, so it's not the memory limit that is on my security plugin.



2014/12/13 16:12:40 [error] 28264#0: *212 FastCGI sent in stderr: "PHP message: PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 71 bytes) in /var/www/..



I am having troubles with a wordpress plugin running a full batch of imports. I get this error when I enable the nginx debug. The result is I get an immediate 404 error afterwards and I am unable to fully import my data.



I am pretty sure this is a bug, but I can't find the right answer to fix it.



Please Help.



What I have done so far:



  • It looked like a nginx bug and my nginx version was old, so I upgraded. No change.

  • It looked and still looks like it could be related to php-fpm. I've upgraded. No change.

  • I've disabled all of my plugins. No Change.

Server



  • CentOS 6.0

  • nginx v 1.0.15

  • PHP-FPM v 5.3.3 (fpm-fcgi)

  • Webserver running 3 very low traffic sites

  • PHP-FPM is set to ondemmand

PHP.ini config:



  • pm = ondemand

  • pm.process_idle_timeout = 50s

  • pm.max_children = 20

  • pm.start_servers = 1

  • pm.min_spare_servers = 3

  • pm.max_spare_servers = 5

  • pm.max_requests = 1024

  • pm.status_path = /status

I am unable to post my logs, so please check out the comparison



Nginx Log:



[12-Dec-2014 06:35:49.398315] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:50.399474] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:51.400765] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:52.402053] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.403346] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.417762] DEBUG: pid 13384, fpm_got_signal(), line 72: received SIGCHLD
[12-Dec-2014 06:35:53.417836] DEBUG: pid 13384, fpm_children_bury(), line 254: [pool www] child 18327 has been killed by the process managment after 52.123053 seconds from start
[12-Dec-2014 06:35:53.417863] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events
[12-Dec-2014 06:35:54.404978] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 0 spare children
[12-Dec-2014 06:35:54.687559] DEBUG: pid 13384, fpm_children_make(), line 421: [pool www] child 18397 started




[12-Dec-2014 06:35:54.687593] DEBUG: pid 13384, fpm_pctl_on_socket_accept(), line 536: [pool www] got accept without idle child available .... I forked
[12-Dec-2014 06:35:54.687602] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events




[12-Dec-2014 06:35:55.406455] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:56.407633] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:57.408949] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:58.410111] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children


PHP log:



2014/12/12 06:35:02 [debug] 13350#0: *223 http header done
2014/12/12 06:35:54 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1
2014/12/12 06:35:54 [debug] 13350#0: posix_memalign: 0000000002273A80:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 accept: 66.249.67.123 fd:3
2014/12/12 06:35:54 [debug] 13350#0: *226 event timer add: 3: 60000:1418387814684
2014/12/12 06:35:54 [debug] 13350#0: *226 epoll add event: fd:3 op:1 ev:80000001
2014/12/12 06:35:54 [debug] 13350#0: accept() not ready (11: Resource temporarily unavailable)
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 0000000002274AF0:1296
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 0000000002273BE0:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 000000000232F4B0:131072
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 00000000021F7590:4096 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request line
2014/12/12 06:35:54 [debug] 13350#0: *226 recv: fd:3 315 of 131072
2014/12/12 06:35:54 [debug] 13350#0: *226 http request line: "GET /stores/giltcity/page/78/ HTTP/1.1"
2014/12/12 06:35:54 [debug] 13350#0: *226 http uri: "/stores/giltcity/page/78/"
2014/12/12 06:35:54 [debug] 13350#0: *226 http args: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http exten: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request header line
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Host: mydiscountman.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Connection: Keep-alive"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "From: googlebot(at)googlebot.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept-Encoding: gzip,deflate"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header done
2014/12/12 06:37:11 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1


Nginx Global Config /etc/nginx/nginx.conf :



user apache;
worker_processes 1;
pid /var/run/nginx.pid;


events 
worker_connections 768;
multi_accept on;
use epoll;


http 

# Let NGINX get the real client IP for its access logs
set_real_ip_from 127.0.0.1;
real_ip_header X-Forwarded-For;

# Basic Settings
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 20;
client_max_body_size 15m;
client_body_timeout 60;
client_header_timeout 60;
client_body_buffer_size 128k;
client_header_buffer_size 128k;
large_client_header_buffers 4 16k;
send_timeout 60;
reset_timedout_connection on;
types_hash_max_size 8192;
server_tokens off;

# server_names_hash_bucket_size 64;
# server_name_in_redirect off;

include /etc/nginx/mime.types;
default_type application/octet-stream;

# Logging Settings
# access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log debug;

# Log Format
log_format main '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

# Gzip Settings
gzip on;
gzip_static on;
gzip_disable "msie6";
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_min_length 512;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/css text/javascript text/xml text/plain text/x-component 
application/javascript application/x-javascript application/json 
application/xml application/rss+xml font/truetype application/x-font-ttf 
font/opentype application/vnd.ms-fontobject image/svg+xml;

# Virtual Host Configs
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;



Nginx Site Config /etc/nginx/sites-available/testme :



server pot


PHP.ini



 [PHP]

 ;;;;;;;;;;;;;;;;;;;
 ; Quick Reference ;
 ;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_NOTICE

 extension=apc.so

 ;;;;;;;;;;;;;;;;;;;;
 ; Language Options ;
 ;;;;;;;;;;;;;;;;;;;;

 engine = On
 short_open_tag = Off
 asp_tags = Off
 precision = 14
 y2k_compliance = On
 zlib.output_compression = Off
 implicit_flush = Off
 unserialize_callback_func =
 serialize_precision = 100

 safe_mode = Off
 safe_mode_gid = Off
 safe_mode_include_dir =
 safe_mode_exec_dir =
 safe_mode_allowed_env_vars = PHP_
 safe_mode_protected_env_vars = LD_LIBRARY_PATH
 disable_functions =
 disable_classes =
 realpath_cache_size = 16k
 realpath_cache_ttl = 120

 ;;;;;;;;;;;;;;;;;
 ; Miscellaneous ;
 ;;;;;;;;;;;;;;;;;

 expose_php = On

 ;;;;;;;;;;;;;;;;;;;
 ; Resource Limits ;
 ;;;;;;;;;;;;;;;;;;;

 max_execution_time = 600
 set_time_limit = 600
 max_input_time = 300
 memory_limit = 2048M

 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Error handling and logging ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_DEPRECATED
 display_errors = Off
 display_startup_errors = Off
 log_errors = On
 log_errors_max_len = 1024
 ignore_repeated_errors = Off
 ignore_repeated_source = Off
 report_memleaks = On
 track_errors = Off
 html_errors = Off
 error_log = /var/log/php-fpm/www-error.log


 ;;;;;;;;;;;;;;;;;
 ; Data Handling ;
 ;;;;;;;;;;;;;;;;;

 variables_order = "GPCS"
 request_order = "GP"
 register_globals = Off
 register_long_arrays = Off
 register_argc_argv = Off
 auto_globals_jit = On
 post_max_size = 384M
 magic_quotes_gpc = Off
 magic_quotes_runtime = Off
 magic_quotes_sybase = Off
 auto_prepend_file =
 auto_append_file =
 default_mimetype = "text/html"

 ;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Paths and Directories ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;

 doc_root =
 user_dir =
 enable_dl = Off
 cgi.fix_pathinfo=0

 ;;;;;;;;;;;;;;;;
 ; File Uploads ;
 ;;;;;;;;;;;;;;;;

 file_uploads = On
 upload_max_filesize = 512M

 ;;;;;;;;;;;;;;;;;;
 ; Fopen wrappers ;
 ;;;;;;;;;;;;;;;;;;

 allow_url_fopen = On
 allow_url_include = Off
 default_socket_timeout = 120

 ;;;;;;;;;;;;;;;;;;;;;;
 ; Dynamic Extensions ;
 ;;;;;;;;;;;;;;;;;;;;;;

 ;;;;;;;;;;;;;;;;;;;
 ; Module Settings ;
 ;;;;;;;;;;;;;;;;;;;

 [Date]

 date.timezone = America/Chicago

 [filter]

 [iconv]

 [intl]

 [sqlite]

 [sqlite3]

 [Pcre]

 [Pdo]

 [Phar]

 [Syslog]

 define_syslog_variables = Off

 [mail function]

 SMTP = localhost
 smtp_port = 25
 sendmail_path = /usr/sbin/sendmail -t -i
 mail.add_x_header = On

 [SQL]

 sql.safe_mode = Off

 [ODBC]

 odbc.allow_persistent = On
 odbc.check_persistent = On
 odbc.max_persistent = -1
 odbc.max_links = -1
 odbc.defaultlrl = 4096
 odbc.defaultbinmode = 1

 [MySQL]

 mysql.allow_persistent = On
 mysql.max_persistent = -1
 mysql.max_links = -1
 mysql.default_port =
 mysql.default_socket =
 mysql.default_host =
 mysql.default_user =
 mysql.default_password =
 mysql.connect_timeout = 300
 mysql.trace_mode = Off

 [MySQLi]

 mysqli.max_links = -1
 mysqli.default_port = 3306
 mysqli.default_socket =
 mysqli.default_host =
 mysqli.default_user =
 mysqli.default_pw =
 mysqli.reconnect = Off

 [PostgresSQL]

 pgsql.allow_persistent = On
 pgsql.auto_reset_persistent = Off
 pgsql.max_persistent = -1
 pgsql.max_links = -1
 pgsql.ignore_notice = 0
 pgsql.log_notice = 0

 [Sybase-CT]

 sybct.allow_persistent = On
 sybct.max_persistent = -1
 sybct.max_links = -1
 sybct.min_server_severity = 10
 sybct.min_client_severity = 10

 [bcmath]

 bcmath.scale = 0

 [browscap]

 [Session]

 session.save_handler = files
 session.save_path = "/var/lib/php/session"
 session.use_cookies = 1
 session.use_only_cookies = 1
 session.name = PHPSESSID
 session.auto_start = 0
 session.cookie_lifetime = 0
 session.cookie_path = /
 session.cookie_domain =
 session.cookie_httponly = 
 session.serialize_handler = php
 session.gc_probability = 1
 session.gc_divisor = 1000
 session.gc_maxlifetime = 1440
 session.bug_compat_42 = Off
 session.bug_compat_warn = Off
 session.referer_check =
 session.entropy_length = 0
 session.entropy_file =
 session.cache_limiter = nocache
 session.cache_expire = 180
 session.use_trans_sid = 0
 session.hash_function = 0
 session.hash_bits_per_character = 5
 url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"

 [MSSQL]

 mssql.allow_persistent = On
 mssql.max_persistent = -1
 mssql.max_links = -1
 mssql.min_error_severity = 10
 mssql.min_message_severity = 10
 mssql.compatability_mode = Off
 mssql.timeout = 300
 mssql.secure_connection = Off




 [Tidy]

 tidy.clean_output = Off

 [soap]

 soap.wsdl_cache_enabled=1
 soap.wsdl_cache_dir="/tmp"
 soap.wsdl_cache_ttl=86400





nginx php-fpm







share|improve this question
















bumped to the homepage by Community♦ 4 hours ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.















  • can you add the nginx config?

    – xofer
    Dec 12 '14 at 17:07











  • I have no idea what the answer is, but I'd like to thank you for posting a great first question!

    – Hyppy
    Dec 12 '14 at 17:25











  • Thanks Hyppy! This is a tough one. Lots of moving pieces.

    – Thomas
    Dec 12 '14 at 19:25











  • so, the forking command is not a bug. The PHP process stopping 100% due to the child being killed is the fundamental problem. Why or how I am still unsure. Any ideas anyone?

    – Thomas
    Dec 13 '14 at 21:50







  • 1





    so it's not php's memory limit. You are drawing false conclusions. The error message says that PHP is running out of memory (at 256mb), the memory limit can be changed at runtime. There is no nginx or PHP fpm complexity/relevance here.

    – AD7six
    Dec 14 '14 at 13:47














5












5








5


1






New Development



The core php error logs are below, but the site specific error logs show this. The memory on my php.ini file is :



memory_size 1024;



so it's not php's memory limit. I've also disabled all my plugin's, so it's not the memory limit that is on my security plugin.



2014/12/13 16:12:40 [error] 28264#0: *212 FastCGI sent in stderr: "PHP message: PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 71 bytes) in /var/www/..



I am having troubles with a wordpress plugin running a full batch of imports. I get this error when I enable the nginx debug. The result is I get an immediate 404 error afterwards and I am unable to fully import my data.



I am pretty sure this is a bug, but I can't find the right answer to fix it.



Please Help.



What I have done so far:



  • It looked like a nginx bug and my nginx version was old, so I upgraded. No change.

  • It looked and still looks like it could be related to php-fpm. I've upgraded. No change.

  • I've disabled all of my plugins. No Change.

Server



  • CentOS 6.0

  • nginx v 1.0.15

  • PHP-FPM v 5.3.3 (fpm-fcgi)

  • Webserver running 3 very low traffic sites

  • PHP-FPM is set to ondemmand

PHP.ini config:



  • pm = ondemand

  • pm.process_idle_timeout = 50s

  • pm.max_children = 20

  • pm.start_servers = 1

  • pm.min_spare_servers = 3

  • pm.max_spare_servers = 5

  • pm.max_requests = 1024

  • pm.status_path = /status

I am unable to post my logs, so please check out the comparison



Nginx Log:



[12-Dec-2014 06:35:49.398315] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:50.399474] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:51.400765] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:52.402053] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.403346] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.417762] DEBUG: pid 13384, fpm_got_signal(), line 72: received SIGCHLD
[12-Dec-2014 06:35:53.417836] DEBUG: pid 13384, fpm_children_bury(), line 254: [pool www] child 18327 has been killed by the process managment after 52.123053 seconds from start
[12-Dec-2014 06:35:53.417863] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events
[12-Dec-2014 06:35:54.404978] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 0 spare children
[12-Dec-2014 06:35:54.687559] DEBUG: pid 13384, fpm_children_make(), line 421: [pool www] child 18397 started




[12-Dec-2014 06:35:54.687593] DEBUG: pid 13384, fpm_pctl_on_socket_accept(), line 536: [pool www] got accept without idle child available .... I forked
[12-Dec-2014 06:35:54.687602] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events




[12-Dec-2014 06:35:55.406455] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:56.407633] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:57.408949] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:58.410111] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children


PHP log:



2014/12/12 06:35:02 [debug] 13350#0: *223 http header done
2014/12/12 06:35:54 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1
2014/12/12 06:35:54 [debug] 13350#0: posix_memalign: 0000000002273A80:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 accept: 66.249.67.123 fd:3
2014/12/12 06:35:54 [debug] 13350#0: *226 event timer add: 3: 60000:1418387814684
2014/12/12 06:35:54 [debug] 13350#0: *226 epoll add event: fd:3 op:1 ev:80000001
2014/12/12 06:35:54 [debug] 13350#0: accept() not ready (11: Resource temporarily unavailable)
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 0000000002274AF0:1296
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 0000000002273BE0:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 000000000232F4B0:131072
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 00000000021F7590:4096 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request line
2014/12/12 06:35:54 [debug] 13350#0: *226 recv: fd:3 315 of 131072
2014/12/12 06:35:54 [debug] 13350#0: *226 http request line: "GET /stores/giltcity/page/78/ HTTP/1.1"
2014/12/12 06:35:54 [debug] 13350#0: *226 http uri: "/stores/giltcity/page/78/"
2014/12/12 06:35:54 [debug] 13350#0: *226 http args: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http exten: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request header line
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Host: mydiscountman.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Connection: Keep-alive"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "From: googlebot(at)googlebot.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept-Encoding: gzip,deflate"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header done
2014/12/12 06:37:11 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1


Nginx Global Config /etc/nginx/nginx.conf :



user apache;
worker_processes 1;
pid /var/run/nginx.pid;


events 
worker_connections 768;
multi_accept on;
use epoll;


http 

# Let NGINX get the real client IP for its access logs
set_real_ip_from 127.0.0.1;
real_ip_header X-Forwarded-For;

# Basic Settings
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 20;
client_max_body_size 15m;
client_body_timeout 60;
client_header_timeout 60;
client_body_buffer_size 128k;
client_header_buffer_size 128k;
large_client_header_buffers 4 16k;
send_timeout 60;
reset_timedout_connection on;
types_hash_max_size 8192;
server_tokens off;

# server_names_hash_bucket_size 64;
# server_name_in_redirect off;

include /etc/nginx/mime.types;
default_type application/octet-stream;

# Logging Settings
# access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log debug;

# Log Format
log_format main '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

# Gzip Settings
gzip on;
gzip_static on;
gzip_disable "msie6";
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_min_length 512;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/css text/javascript text/xml text/plain text/x-component 
application/javascript application/x-javascript application/json 
application/xml application/rss+xml font/truetype application/x-font-ttf 
font/opentype application/vnd.ms-fontobject image/svg+xml;

# Virtual Host Configs
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;



Nginx Site Config /etc/nginx/sites-available/testme :



server pot


PHP.ini



 [PHP]

 ;;;;;;;;;;;;;;;;;;;
 ; Quick Reference ;
 ;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_NOTICE

 extension=apc.so

 ;;;;;;;;;;;;;;;;;;;;
 ; Language Options ;
 ;;;;;;;;;;;;;;;;;;;;

 engine = On
 short_open_tag = Off
 asp_tags = Off
 precision = 14
 y2k_compliance = On
 zlib.output_compression = Off
 implicit_flush = Off
 unserialize_callback_func =
 serialize_precision = 100

 safe_mode = Off
 safe_mode_gid = Off
 safe_mode_include_dir =
 safe_mode_exec_dir =
 safe_mode_allowed_env_vars = PHP_
 safe_mode_protected_env_vars = LD_LIBRARY_PATH
 disable_functions =
 disable_classes =
 realpath_cache_size = 16k
 realpath_cache_ttl = 120

 ;;;;;;;;;;;;;;;;;
 ; Miscellaneous ;
 ;;;;;;;;;;;;;;;;;

 expose_php = On

 ;;;;;;;;;;;;;;;;;;;
 ; Resource Limits ;
 ;;;;;;;;;;;;;;;;;;;

 max_execution_time = 600
 set_time_limit = 600
 max_input_time = 300
 memory_limit = 2048M

 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Error handling and logging ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_DEPRECATED
 display_errors = Off
 display_startup_errors = Off
 log_errors = On
 log_errors_max_len = 1024
 ignore_repeated_errors = Off
 ignore_repeated_source = Off
 report_memleaks = On
 track_errors = Off
 html_errors = Off
 error_log = /var/log/php-fpm/www-error.log


 ;;;;;;;;;;;;;;;;;
 ; Data Handling ;
 ;;;;;;;;;;;;;;;;;

 variables_order = "GPCS"
 request_order = "GP"
 register_globals = Off
 register_long_arrays = Off
 register_argc_argv = Off
 auto_globals_jit = On
 post_max_size = 384M
 magic_quotes_gpc = Off
 magic_quotes_runtime = Off
 magic_quotes_sybase = Off
 auto_prepend_file =
 auto_append_file =
 default_mimetype = "text/html"

 ;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Paths and Directories ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;

 doc_root =
 user_dir =
 enable_dl = Off
 cgi.fix_pathinfo=0

 ;;;;;;;;;;;;;;;;
 ; File Uploads ;
 ;;;;;;;;;;;;;;;;

 file_uploads = On
 upload_max_filesize = 512M

 ;;;;;;;;;;;;;;;;;;
 ; Fopen wrappers ;
 ;;;;;;;;;;;;;;;;;;

 allow_url_fopen = On
 allow_url_include = Off
 default_socket_timeout = 120

 ;;;;;;;;;;;;;;;;;;;;;;
 ; Dynamic Extensions ;
 ;;;;;;;;;;;;;;;;;;;;;;

 ;;;;;;;;;;;;;;;;;;;
 ; Module Settings ;
 ;;;;;;;;;;;;;;;;;;;

 [Date]

 date.timezone = America/Chicago

 [filter]

 [iconv]

 [intl]

 [sqlite]

 [sqlite3]

 [Pcre]

 [Pdo]

 [Phar]

 [Syslog]

 define_syslog_variables = Off

 [mail function]

 SMTP = localhost
 smtp_port = 25
 sendmail_path = /usr/sbin/sendmail -t -i
 mail.add_x_header = On

 [SQL]

 sql.safe_mode = Off

 [ODBC]

 odbc.allow_persistent = On
 odbc.check_persistent = On
 odbc.max_persistent = -1
 odbc.max_links = -1
 odbc.defaultlrl = 4096
 odbc.defaultbinmode = 1

 [MySQL]

 mysql.allow_persistent = On
 mysql.max_persistent = -1
 mysql.max_links = -1
 mysql.default_port =
 mysql.default_socket =
 mysql.default_host =
 mysql.default_user =
 mysql.default_password =
 mysql.connect_timeout = 300
 mysql.trace_mode = Off

 [MySQLi]

 mysqli.max_links = -1
 mysqli.default_port = 3306
 mysqli.default_socket =
 mysqli.default_host =
 mysqli.default_user =
 mysqli.default_pw =
 mysqli.reconnect = Off

 [PostgresSQL]

 pgsql.allow_persistent = On
 pgsql.auto_reset_persistent = Off
 pgsql.max_persistent = -1
 pgsql.max_links = -1
 pgsql.ignore_notice = 0
 pgsql.log_notice = 0

 [Sybase-CT]

 sybct.allow_persistent = On
 sybct.max_persistent = -1
 sybct.max_links = -1
 sybct.min_server_severity = 10
 sybct.min_client_severity = 10

 [bcmath]

 bcmath.scale = 0

 [browscap]

 [Session]

 session.save_handler = files
 session.save_path = "/var/lib/php/session"
 session.use_cookies = 1
 session.use_only_cookies = 1
 session.name = PHPSESSID
 session.auto_start = 0
 session.cookie_lifetime = 0
 session.cookie_path = /
 session.cookie_domain =
 session.cookie_httponly = 
 session.serialize_handler = php
 session.gc_probability = 1
 session.gc_divisor = 1000
 session.gc_maxlifetime = 1440
 session.bug_compat_42 = Off
 session.bug_compat_warn = Off
 session.referer_check =
 session.entropy_length = 0
 session.entropy_file =
 session.cache_limiter = nocache
 session.cache_expire = 180
 session.use_trans_sid = 0
 session.hash_function = 0
 session.hash_bits_per_character = 5
 url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"

 [MSSQL]

 mssql.allow_persistent = On
 mssql.max_persistent = -1
 mssql.max_links = -1
 mssql.min_error_severity = 10
 mssql.min_message_severity = 10
 mssql.compatability_mode = Off
 mssql.timeout = 300
 mssql.secure_connection = Off




 [Tidy]

 tidy.clean_output = Off

 [soap]

 soap.wsdl_cache_enabled=1
 soap.wsdl_cache_dir="/tmp"
 soap.wsdl_cache_ttl=86400





nginx php-fpm







share|improve this question
















New Development



The core php error logs are below, but the site specific error logs show this. The memory on my php.ini file is :



memory_size 1024;



so it's not php's memory limit. I've also disabled all my plugin's, so it's not the memory limit that is on my security plugin.



2014/12/13 16:12:40 [error] 28264#0: *212 FastCGI sent in stderr: "PHP message: PHP Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 71 bytes) in /var/www/..



I am having troubles with a wordpress plugin running a full batch of imports. I get this error when I enable the nginx debug. The result is I get an immediate 404 error afterwards and I am unable to fully import my data.



I am pretty sure this is a bug, but I can't find the right answer to fix it.



Please Help.



What I have done so far:



  • It looked like a nginx bug and my nginx version was old, so I upgraded. No change.

  • It looked and still looks like it could be related to php-fpm. I've upgraded. No change.

  • I've disabled all of my plugins. No Change.

Server



  • CentOS 6.0

  • nginx v 1.0.15

  • PHP-FPM v 5.3.3 (fpm-fcgi)

  • Webserver running 3 very low traffic sites

  • PHP-FPM is set to ondemmand

PHP.ini config:



  • pm = ondemand

  • pm.process_idle_timeout = 50s

  • pm.max_children = 20

  • pm.start_servers = 1

  • pm.min_spare_servers = 3

  • pm.max_spare_servers = 5

  • pm.max_requests = 1024

  • pm.status_path = /status

I am unable to post my logs, so please check out the comparison



Nginx Log:



[12-Dec-2014 06:35:49.398315] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:50.399474] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:51.400765] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:52.402053] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.403346] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:53.417762] DEBUG: pid 13384, fpm_got_signal(), line 72: received SIGCHLD
[12-Dec-2014 06:35:53.417836] DEBUG: pid 13384, fpm_children_bury(), line 254: [pool www] child 18327 has been killed by the process managment after 52.123053 seconds from start
[12-Dec-2014 06:35:53.417863] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events
[12-Dec-2014 06:35:54.404978] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 0 spare children
[12-Dec-2014 06:35:54.687559] DEBUG: pid 13384, fpm_children_make(), line 421: [pool www] child 18397 started




[12-Dec-2014 06:35:54.687593] DEBUG: pid 13384, fpm_pctl_on_socket_accept(), line 536: [pool www] got accept without idle child available .... I forked
[12-Dec-2014 06:35:54.687602] DEBUG: pid 13384, fpm_event_loop(), line 411: event module triggered 1 events




[12-Dec-2014 06:35:55.406455] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:56.407633] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:57.408949] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children
[12-Dec-2014 06:35:58.410111] DEBUG: pid 13384, fpm_pctl_perform_idle_server_maintenance(), line 362: [pool www] currently 0 active children, 1 spare children


PHP log:



2014/12/12 06:35:02 [debug] 13350#0: *223 http header done
2014/12/12 06:35:54 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1
2014/12/12 06:35:54 [debug] 13350#0: posix_memalign: 0000000002273A80:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 accept: 66.249.67.123 fd:3
2014/12/12 06:35:54 [debug] 13350#0: *226 event timer add: 3: 60000:1418387814684
2014/12/12 06:35:54 [debug] 13350#0: *226 epoll add event: fd:3 op:1 ev:80000001
2014/12/12 06:35:54 [debug] 13350#0: accept() not ready (11: Resource temporarily unavailable)
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 0000000002274AF0:1296
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 0000000002273BE0:256 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 malloc: 000000000232F4B0:131072
2014/12/12 06:35:54 [debug] 13350#0: *226 posix_memalign: 00000000021F7590:4096 @16
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request line
2014/12/12 06:35:54 [debug] 13350#0: *226 recv: fd:3 315 of 131072
2014/12/12 06:35:54 [debug] 13350#0: *226 http request line: "GET /stores/giltcity/page/78/ HTTP/1.1"
2014/12/12 06:35:54 [debug] 13350#0: *226 http uri: "/stores/giltcity/page/78/"
2014/12/12 06:35:54 [debug] 13350#0: *226 http args: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http exten: ""
2014/12/12 06:35:54 [debug] 13350#0: *226 http process request header line
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Host: mydiscountman.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Connection: Keep-alive"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "From: googlebot(at)googlebot.com"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "Accept-Encoding: gzip,deflate"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header: "User-Agent: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
2014/12/12 06:35:54 [debug] 13350#0: *226 http header done
2014/12/12 06:37:11 [debug] 13350#0: accept on 0.0.0.0:80, ready: 1


Nginx Global Config /etc/nginx/nginx.conf :



user apache;
worker_processes 1;
pid /var/run/nginx.pid;


events 
worker_connections 768;
multi_accept on;
use epoll;


http 

# Let NGINX get the real client IP for its access logs
set_real_ip_from 127.0.0.1;
real_ip_header X-Forwarded-For;

# Basic Settings
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 20;
client_max_body_size 15m;
client_body_timeout 60;
client_header_timeout 60;
client_body_buffer_size 128k;
client_header_buffer_size 128k;
large_client_header_buffers 4 16k;
send_timeout 60;
reset_timedout_connection on;
types_hash_max_size 8192;
server_tokens off;

# server_names_hash_bucket_size 64;
# server_name_in_redirect off;

include /etc/nginx/mime.types;
default_type application/octet-stream;

# Logging Settings
# access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log debug;

# Log Format
log_format main '$remote_addr - $remote_user [$time_local] '
'"$request" $status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

# Gzip Settings
gzip on;
gzip_static on;
gzip_disable "msie6";
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_min_length 512;
gzip_buffers 16 8k;
gzip_http_version 1.1;
gzip_types text/css text/javascript text/xml text/plain text/x-component 
application/javascript application/x-javascript application/json 
application/xml application/rss+xml font/truetype application/x-font-ttf 
font/opentype application/vnd.ms-fontobject image/svg+xml;

# Virtual Host Configs
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;



Nginx Site Config /etc/nginx/sites-available/testme :



server pot


PHP.ini



 [PHP]

 ;;;;;;;;;;;;;;;;;;;
 ; Quick Reference ;
 ;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_NOTICE

 extension=apc.so

 ;;;;;;;;;;;;;;;;;;;;
 ; Language Options ;
 ;;;;;;;;;;;;;;;;;;;;

 engine = On
 short_open_tag = Off
 asp_tags = Off
 precision = 14
 y2k_compliance = On
 zlib.output_compression = Off
 implicit_flush = Off
 unserialize_callback_func =
 serialize_precision = 100

 safe_mode = Off
 safe_mode_gid = Off
 safe_mode_include_dir =
 safe_mode_exec_dir =
 safe_mode_allowed_env_vars = PHP_
 safe_mode_protected_env_vars = LD_LIBRARY_PATH
 disable_functions =
 disable_classes =
 realpath_cache_size = 16k
 realpath_cache_ttl = 120

 ;;;;;;;;;;;;;;;;;
 ; Miscellaneous ;
 ;;;;;;;;;;;;;;;;;

 expose_php = On

 ;;;;;;;;;;;;;;;;;;;
 ; Resource Limits ;
 ;;;;;;;;;;;;;;;;;;;

 max_execution_time = 600
 set_time_limit = 600
 max_input_time = 300
 memory_limit = 2048M

 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Error handling and logging ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

 error_reporting = E_ALL & ~E_DEPRECATED
 display_errors = Off
 display_startup_errors = Off
 log_errors = On
 log_errors_max_len = 1024
 ignore_repeated_errors = Off
 ignore_repeated_source = Off
 report_memleaks = On
 track_errors = Off
 html_errors = Off
 error_log = /var/log/php-fpm/www-error.log


 ;;;;;;;;;;;;;;;;;
 ; Data Handling ;
 ;;;;;;;;;;;;;;;;;

 variables_order = "GPCS"
 request_order = "GP"
 register_globals = Off
 register_long_arrays = Off
 register_argc_argv = Off
 auto_globals_jit = On
 post_max_size = 384M
 magic_quotes_gpc = Off
 magic_quotes_runtime = Off
 magic_quotes_sybase = Off
 auto_prepend_file =
 auto_append_file =
 default_mimetype = "text/html"

 ;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Paths and Directories ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;

 doc_root =
 user_dir =
 enable_dl = Off
 cgi.fix_pathinfo=0

 ;;;;;;;;;;;;;;;;
 ; File Uploads ;
 ;;;;;;;;;;;;;;;;

 file_uploads = On
 upload_max_filesize = 512M

 ;;;;;;;;;;;;;;;;;;
 ; Fopen wrappers ;
 ;;;;;;;;;;;;;;;;;;

 allow_url_fopen = On
 allow_url_include = Off
 default_socket_timeout = 120

 ;;;;;;;;;;;;;;;;;;;;;;
 ; Dynamic Extensions ;
 ;;;;;;;;;;;;;;;;;;;;;;

 ;;;;;;;;;;;;;;;;;;;
 ; Module Settings ;
 ;;;;;;;;;;;;;;;;;;;

 [Date]

 date.timezone = America/Chicago

 [filter]

 [iconv]

 [intl]

 [sqlite]

 [sqlite3]

 [Pcre]

 [Pdo]

 [Phar]

 [Syslog]

 define_syslog_variables = Off

 [mail function]

 SMTP = localhost
 smtp_port = 25
 sendmail_path = /usr/sbin/sendmail -t -i
 mail.add_x_header = On

 [SQL]

 sql.safe_mode = Off

 [ODBC]

 odbc.allow_persistent = On
 odbc.check_persistent = On
 odbc.max_persistent = -1
 odbc.max_links = -1
 odbc.defaultlrl = 4096
 odbc.defaultbinmode = 1

 [MySQL]

 mysql.allow_persistent = On
 mysql.max_persistent = -1
 mysql.max_links = -1
 mysql.default_port =
 mysql.default_socket =
 mysql.default_host =
 mysql.default_user =
 mysql.default_password =
 mysql.connect_timeout = 300
 mysql.trace_mode = Off

 [MySQLi]

 mysqli.max_links = -1
 mysqli.default_port = 3306
 mysqli.default_socket =
 mysqli.default_host =
 mysqli.default_user =
 mysqli.default_pw =
 mysqli.reconnect = Off

 [PostgresSQL]

 pgsql.allow_persistent = On
 pgsql.auto_reset_persistent = Off
 pgsql.max_persistent = -1
 pgsql.max_links = -1
 pgsql.ignore_notice = 0
 pgsql.log_notice = 0

 [Sybase-CT]

 sybct.allow_persistent = On
 sybct.max_persistent = -1
 sybct.max_links = -1
 sybct.min_server_severity = 10
 sybct.min_client_severity = 10

 [bcmath]

 bcmath.scale = 0

 [browscap]

 [Session]

 session.save_handler = files
 session.save_path = "/var/lib/php/session"
 session.use_cookies = 1
 session.use_only_cookies = 1
 session.name = PHPSESSID
 session.auto_start = 0
 session.cookie_lifetime = 0
 session.cookie_path = /
 session.cookie_domain =
 session.cookie_httponly = 
 session.serialize_handler = php
 session.gc_probability = 1
 session.gc_divisor = 1000
 session.gc_maxlifetime = 1440
 session.bug_compat_42 = Off
 session.bug_compat_warn = Off
 session.referer_check =
 session.entropy_length = 0
 session.entropy_file =
 session.cache_limiter = nocache
 session.cache_expire = 180
 session.use_trans_sid = 0
 session.hash_function = 0
 session.hash_bits_per_character = 5
 url_rewriter.tags = "a=href,area=href,frame=src,input=src,form=fakeentry"

 [MSSQL]

 mssql.allow_persistent = On
 mssql.max_persistent = -1
 mssql.max_links = -1
 mssql.min_error_severity = 10
 mssql.min_message_severity = 10
 mssql.compatability_mode = Off
 mssql.timeout = 300
 mssql.secure_connection = Off




 [Tidy]

 tidy.clean_output = Off

 [soap]

 soap.wsdl_cache_enabled=1
 soap.wsdl_cache_dir="/tmp"
 soap.wsdl_cache_ttl=86400





nginx php-fpm




nginx php-fpm






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Dec 14 '14 at 18:30







Thomas

















asked Dec 12 '14 at 16:59









ThomasThomas

2614




2614





bumped to the homepage by Community♦ 4 hours ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







bumped to the homepage by Community♦ 4 hours ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.














  • can you add the nginx config?

    – xofer
    Dec 12 '14 at 17:07











  • I have no idea what the answer is, but I'd like to thank you for posting a great first question!

    – Hyppy
    Dec 12 '14 at 17:25











  • Thanks Hyppy! This is a tough one. Lots of moving pieces.

    – Thomas
    Dec 12 '14 at 19:25











  • so, the forking command is not a bug. The PHP process stopping 100% due to the child being killed is the fundamental problem. Why or how I am still unsure. Any ideas anyone?

    – Thomas
    Dec 13 '14 at 21:50







  • 1





    so it's not php's memory limit. You are drawing false conclusions. The error message says that PHP is running out of memory (at 256mb), the memory limit can be changed at runtime. There is no nginx or PHP fpm complexity/relevance here.

    – AD7six
    Dec 14 '14 at 13:47


















  • can you add the nginx config?

    – xofer
    Dec 12 '14 at 17:07











  • I have no idea what the answer is, but I'd like to thank you for posting a great first question!

    – Hyppy
    Dec 12 '14 at 17:25











  • Thanks Hyppy! This is a tough one. Lots of moving pieces.

    – Thomas
    Dec 12 '14 at 19:25











  • so, the forking command is not a bug. The PHP process stopping 100% due to the child being killed is the fundamental problem. Why or how I am still unsure. Any ideas anyone?

    – Thomas
    Dec 13 '14 at 21:50







  • 1





    so it's not php's memory limit. You are drawing false conclusions. The error message says that PHP is running out of memory (at 256mb), the memory limit can be changed at runtime. There is no nginx or PHP fpm complexity/relevance here.

    – AD7six
    Dec 14 '14 at 13:47

















can you add the nginx config?

– xofer
Dec 12 '14 at 17:07





can you add the nginx config?

– xofer
Dec 12 '14 at 17:07













I have no idea what the answer is, but I'd like to thank you for posting a great first question!

– Hyppy
Dec 12 '14 at 17:25





I have no idea what the answer is, but I'd like to thank you for posting a great first question!

– Hyppy
Dec 12 '14 at 17:25













Thanks Hyppy! This is a tough one. Lots of moving pieces.

– Thomas
Dec 12 '14 at 19:25





Thanks Hyppy! This is a tough one. Lots of moving pieces.

– Thomas
Dec 12 '14 at 19:25













so, the forking command is not a bug. The PHP process stopping 100% due to the child being killed is the fundamental problem. Why or how I am still unsure. Any ideas anyone?

– Thomas
Dec 13 '14 at 21:50






so, the forking command is not a bug. The PHP process stopping 100% due to the child being killed is the fundamental problem. Why or how I am still unsure. Any ideas anyone?

– Thomas
Dec 13 '14 at 21:50





1




1





so it's not php's memory limit. You are drawing false conclusions. The error message says that PHP is running out of memory (at 256mb), the memory limit can be changed at runtime. There is no nginx or PHP fpm complexity/relevance here.

– AD7six
Dec 14 '14 at 13:47






so it's not php's memory limit. You are drawing false conclusions. The error message says that PHP is running out of memory (at 256mb), the memory limit can be changed at runtime. There is no nginx or PHP fpm complexity/relevance here.

– AD7six
Dec 14 '14 at 13:47











1 Answer
1






active

oldest

votes


















0














The number of spare processes indicated in your logs clearly doesn't match your value for pm.min_spare_servers. That's probably because the php-fpm settings don't go in your php.ini file, they go in a fpm.conf file.



Given the lack of spare servers, it's no big surprise that you get a 'resource not available error'. I don't know why you'd get a 404 error though.






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    0














    The number of spare processes indicated in your logs clearly doesn't match your value for pm.min_spare_servers. That's probably because the php-fpm settings don't go in your php.ini file, they go in a fpm.conf file.



    Given the lack of spare servers, it's no big surprise that you get a 'resource not available error'. I don't know why you'd get a 404 error though.






    share|improve this answer



























      0














      The number of spare processes indicated in your logs clearly doesn't match your value for pm.min_spare_servers. That's probably because the php-fpm settings don't go in your php.ini file, they go in a fpm.conf file.



      Given the lack of spare servers, it's no big surprise that you get a 'resource not available error'. I don't know why you'd get a 404 error though.






      share|improve this answer

























        0












        0








        0







        The number of spare processes indicated in your logs clearly doesn't match your value for pm.min_spare_servers. That's probably because the php-fpm settings don't go in your php.ini file, they go in a fpm.conf file.



        Given the lack of spare servers, it's no big surprise that you get a 'resource not available error'. I don't know why you'd get a 404 error though.






        share|improve this answer













        The number of spare processes indicated in your logs clearly doesn't match your value for pm.min_spare_servers. That's probably because the php-fpm settings don't go in your php.ini file, they go in a fpm.conf file.



        Given the lack of spare servers, it's no big surprise that you get a 'resource not available error'. I don't know why you'd get a 404 error though.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jun 21 '15 at 20:53









        mc0emc0e

        5,3541127




        5,3541127



























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