我的 django 应用程序有问题,该应用程序由 apache/mod_wsgi 托管。我在应用程序中添加了一些 matplotlib 代码,apache 工作进程现在崩溃了。
我将这个问题简化为以下内容:
- 没有任何 matplotlib 导入应用程序可以正常工作
- 当“import matplotlib”添加到应用程序中的任何位置时,工作进程会因段错误而终止,并且用户看不到来自服务器的回复
- “import matplotlib”在命令行 python 解释器中工作得很好 - 段错误仅发生在 apache 进程中
这是日志条目:
[Tue May 24 08:29:08 2011] [notice] child pid 17576 exit signal Segmentation fault (11)
我无法在其他计算机上重现问题。
我尝试删除 (rm site-packages/matplotli*) 并安装不同版本的 matplotlib (0.99.3、1.0.0、1.0.1)
我尝试在 virtualenv 中安装所有模块,并从 .wsgi 脚本指向 virtualenv。
我试过这个:错误:子 pid 6695 退出信号分段错误 (11) https://stackoverflow.com/questions/6079726/error-child-pid-6695-exit-signal-segmentation-fault-11
I read http://code.google.com/p/modwsgi/wiki/ http://code.google.com/p/modwsgi/wiki/以及。
任何有关如何调试/解决此问题的指示将不胜感激。
(我什至准备移动到任何其他服务器(paste/cherrypy + apache mod_proxy 等)来消除问题。)
这是我的阿帕奇设置:
/usr/sbin/httpd -V
Server version: Apache/2.2.15 (Unix)
Server built: Apr 10 2010 11:21:07
Server's Module Magic Number: 20051115:24
Server loaded: APR 1.3.9, APR-Util 1.3.10
Compiled using: APR 1.3.9, APR-Util 1.3.9
Architecture: 32-bit
Server MPM: Prefork
threaded: no
forked: yes (variable process count)
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-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=128
-D HTTPD_ROOT="/etc/httpd"
-D SUEXEC_BIN="/usr/sbin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="logs/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"
/usr/sbin/httpd -l
Compiled in modules:
core.c
prefork.c
http_core.c
mod_so.c
/usr/sbin/httpd -M
Loaded Modules:
core_module (static)
mpm_prefork_module (static)
http_module (static)
so_module (static)
auth_basic_module (shared)
auth_digest_module (shared)
authn_file_module (shared)
authn_alias_module (shared)
authn_anon_module (shared)
authn_dbm_module (shared)
authn_default_module (shared)
authz_host_module (shared)
authz_user_module (shared)
authz_owner_module (shared)
authz_groupfile_module (shared)
authz_dbm_module (shared)
authz_default_module (shared)
ldap_module (shared)
authnz_ldap_module (shared)
include_module (shared)
log_config_module (shared)
logio_module (shared)
env_module (shared)
ext_filter_module (shared)
mime_magic_module (shared)
expires_module (shared)
deflate_module (shared)
headers_module (shared)
usertrack_module (shared)
setenvif_module (shared)
mime_module (shared)
dav_module (shared)
status_module (shared)
autoindex_module (shared)
info_module (shared)
dav_fs_module (shared)
vhost_alias_module (shared)
negotiation_module (shared)
dir_module (shared)
actions_module (shared)
speling_module (shared)
userdir_module (shared)
alias_module (shared)
rewrite_module (shared)
wsgi_module (shared)
ssl_module (shared)
Syntax OK
阿帕奇配置
<VirtualHost *:443>
ServerName somesite.com
DocumentRoot "/somedir"
WSGIApplicationGroup %{GLOBAL}
WSGIScriptAlias / /somedir/production.wsgi
<..>
</VirtualHost>