php 启动报错如何解决

php 启动报错如何解决

　　php 启动时报错的情况，想必很多朋友都有遇到过吧，下面是具体的解决方法

　　代码如下:

　　[root@abc lnmp]# service php-fpm start

　　Starting php-fpm eAccelerator: Could not allocate 67108864 bytes, the maximum size the kernel allows is 33554432 bytes. Lower the amount of memory request or increase the limit in /proc/sys/kernel/shmmax.

　　[04-Dec-2013 19:06:44] NOTICE: PHP message: PHP Warning: [eAccelerator] Can not create shared memory area in Unknown on line 0

　　[04-Dec-2013 19:06:44] NOTICE: PHP message: PHP Fatal error: Unable to start eAccelerator module in Unknown on line 0

　　failed

　　代码如下:

　　[root@abc lnmp]# vi /etc/sysctl.conf

　　# Kernel sysctl configuration file for Red Hat Linux

　　#

　　# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and

　　# sysctl.conf(5) for more details.

　　# Controls IP packet forwarding

　　net.ipv4.ip_forward = 0

　　# Controls source route verification

　　net.ipv4.conf.default.rp_filter = 1

　　# Do not accept source routing

　　net.ipv4.conf.default.accept_source_route = 0

　　# Controls the System Request debugging functionality of the kernel

　　kernel.sysrq = 0

　　# Controls whether core dumps will append the PID to the core filename.

　　# Useful for debugging multi-threaded applications.

　　kernel.core_uses_pid = 1

　　# Controls the use of TCP syncookies

　　net.ipv4.tcp_syncookies = 1

　　# Disable netfilter on bridges.

　　net.bridge.bridge-nf-call-ip6tables = 0

　　net.bridge.bridge-nf-call-iptables = 0

　　net.bridge.bridge-nf-call-arptables = 0

　　fs.file-max=65535

　　net.ipv4.tcp_max_syn_backlog = 65536

　　net.core.netdev_max_backlog = 32768

　　net.core.somaxconn = 32768

　　net.core.wmem_default = 8388608

　　net.core.rmem_default = 8388608

　　net.core.rmem_max = 16777216

　　net.core.wmem_max = 16777216

　　net.ipv4.tcp_timestamps = 0

　　net.ipv4.tcp_synack_retries = 2

　　net.ipv4.tcp_syn_retries = 2

　　net.ipv4.tcp_tw_recycle = 1

　　#net.ipv4.tcp_tw_len = 1

　　net.ipv4.tcp_tw_reuse = 1

　　net.ipv4.tcp_mem = 94500000 915000000 927000000

　　net.ipv4.tcp_max_orphans = 3276800

　　# TIME_OUT后等待时间

　　#net.ipv4.tcp_fin_timeout = 30

　　#net.ipv4.tcp_keepalive_time = 120

　　net.ipv4.ip_local_port_range = 1024 65535

　　kernel.shmmax = 128000000

　　加上最后一句话 kernel.shmmax = 128000000

　　然后应用sysctl -p

　　代码如下:

　　[root@abc lnmp]# service php-fpm start

　　Starting php-fpm done

　　[root@abc lnmp]# /usr/bin/memcachedstart