在升级软件包时，有时不同版本间的配置文件可能会不太兼容。RPM使用 .rpmnew 和 .rpmsave 来处理这种情况。有时，新版本的配置文件会保存为 .rpmnew；有时，会把老版本的配置文件保存为 .rpmsave。
处理 .rpmnew 和 .rpmsave 文件的方法为：
- 比较新旧配置文件的不同
- 参照新的配置文件手动修改
- 删除旧的配置文件
下面举例说明具体步骤。
查找 .rpmnew 和 .rpmsave 文件
以 root 权限执行下面的命令，查询系统中所有的 .rpmnew 和 .rpmsave 文件：
for tmp in $(find /etc /var -name '*.rpm?*'); do echo $tmp; done
执行结果为：
/etc/php-fpm.d/www.conf.rpmnew
/etc/sysconfig/saslauthd.rpmsave
/var/lib/rpm/.rpm.lock
比较新旧配置文件
cd /etc/php-fpm.d/
diff -aur www.conf{,.rpmnew}
结果如下：
--- www.conf 2014-07-01 02:57:14.956961608 +0800
+++ www.conf.rpmnew 2014-07-16 17:14:47.000000000 +0800
@@ -9,7 +9,7 @@
; specific port;
; '/path/to/unix/socket' - to listen on a unix socket.
; Note: This value is mandatory.
-listen = /var/run/php-fpm/php-fpm.sock
+listen = 127.0.0.1:9000
; Set listen(2) backlog. A value of '-1' means unlimited.
; Default Value: -1
@@ -21,24 +21,24 @@
; must be separated by a comma. If this value is left blank, connections will be
; accepted from any ip address.
; Default Value: any
-;listen.allowed_clients = 127.0.0.1
+listen.allowed_clients = 127.0.0.1
; Set permissions for unix socket, if one is used. In Linux, read/write
; permissions must be set in order to allow connections from a web server. Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
-; mode is set to 0666
-listen.owner = nginx
-listen.group = nginx
-listen.mode = 0660
+; mode is set to 0660
+;listen.owner = nobody
+;listen.group = nobody
+;listen.mode = 0660
; Unix user/group of processes
; Note: The user is mandatory. If the group is not set, the default user's group
; will be used.
; RPM: apache Choosed to be able to access some dir as httpd
-user = nginx
+user = apache
; RPM: Keep a group allowed to write in log dir.
-group = nginx
+group = apache
; Choose how the process manager will control the number of child processes.
; Possible Values:
@@ -67,22 +67,22 @@
; CGI.
; Note: Used when pm is set to either 'static' or 'dynamic'
; Note: This value is mandatory.
-pm.max_children = 64
+pm.max_children = 50
; The number of child processes created on startup.
; Note: Used only when pm is set to 'dynamic'
; Default Value: min_spare_servers + (max_spare_servers - min_spare_servers) / 2
-pm.start_servers = 8
+pm.start_servers = 5
; The desired minimum number of idle server processes.
; Note: Used only when pm is set to 'dynamic'
; Note: Mandatory when pm is set to 'dynamic'
-pm.min_spare_servers = 8
+pm.min_spare_servers = 5
; The desired maximum number of idle server processes.
; Note: Used only when pm is set to 'dynamic'
; Note: Mandatory when pm is set to 'dynamic'
-pm.max_spare_servers = 32
+pm.max_spare_servers = 35
; The number of requests each child process should execute before respawning.
; This can be useful to work around memory leaks in 3rd party libraries. For
@@ -222,5 +222,6 @@
; Set session path to a directory owned by process user
php_value[session.save_handler] = files
-php_value[session.save_path] = /var/lib/php/session
+php_value[session.save_path] = /var/lib/php/session
+php_value[soap.wsdl_cache_dir] = /var/lib/php/wsdlcache
处理
可以看出，大部分不同之处都是之前对 /etc/php-fpm.d/www.conf 做的修改，新的配置文件只是增加了php_value[soap.wsdl_cache_dir] = /var/lib/php/wsdlcache，那么把这一行添加到旧的配置文件中就行了
echo 'php_value[soap.wsdl_cache_dir] = /var/lib/php/wsdlcache' >> www.conf
rm www.conf.pacnew
service php-fpm restart
