I have a Wordpress blog with one post. I wanted to self-host for the experience and "fun" of it. I rarely get any viewers at all because I am just setting up. I am on an Amazon EC2-micro Arch-Linux instance using Apache 2.4.23 and MySQL 5.5.52 to run Wordpress. I have 1 GB of RAM.
I did not think that this would be a resource heavy application, but every time I try to run Wordpress, after a couple days the server always crashes. This is due to Apache spawning 100s of processes and not killing them. Shouldn't these go away after a while?
I have spent quite a bit of time now googling the problem. I have set up 2 GB of swap trying to fix it. The processes overflow that too. I have added
maxClients 40 to my
httpd.conf and that seemed to work for a while, but after about 2 weeks Apache crashed again. I have tried other configurations in
httpd.conf but they would cause Apache to crash even quicker. I have a block that currently looks like this (after several tries):
# StartServers 3 # MinSpareServers 2 # MaxSpareServers 5 # ServerLimit 10 maxClients 40 # MaxRequestsPerChild 100 # KeepAliveTimeout 2
Could anyone experienced with this specific problem give me some advice? I'm just trying to host a simple WordPress blog. If it helps, here is my
[ec2-user~]$ httpd -V Server version: Apache/2.4.23 (Amazon) Server built: Jul 29 2016 21:42:17 Server's Module Magic Number: 20120211:61 Server loaded: APR 1.5.1, APR-UTIL 1.4.1 Compiled using: APR 1.5.1, APR-UTIL 1.4.1 Architecture: 64-bit Server MPM: prefork threaded: no forked: yes (variable process count) Server compiled with.... -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=256 -D HTTPD_ROOT="/etc/httpd" -D SUEXEC_BIN="/usr/sbin/suexec" -D DEFAULT_PIDLOG="/var/run/httpd/httpd.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="conf/mime.types" -D SERVER_CONFIG_FILE="conf/httpd.conf"
Edit: Also the fact that these processes are in uninterruptible sleep (IO, Status = D) is problematic!