背景
- 想使用 ningx + uwsgi + flask 搭建 python 应用环境
- Python使用的是anaconda3（pyhton 3.6）
- 依赖包安装完毕，但是执行 uwsgi 的时候出现如下异常
(py3) [root@localhost ~]# uwsgi uwsgi: error while loading shared libraries: libicui18n.so.58: cannot open shared object file: No such file or directory
于是乎查看 uwsgi所在地址，然后使用 LDD 查看缺少的包
(py3) [root@localhost ~]# which uwsgi /root/anaconda3/envs/py3/bin/uwsgi (py3) [root@localhost ~]# ldd /root/anaconda3/envs/py3/bin/uwsgi linux-vdso.so.1 => (0x00007ffc14fc7000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007ff6b0347000) libm.so.6 => /lib64/libm.so.6 (0x00007ff6b0045000) libdl.so.2 => /lib64/libdl.so.2 (0x00007ff6afe40000) libpcre.so.1 => /lib64/libpcre.so.1 (0x00007ff6afbde000) libxml2.so.2 => /lib64/libxml2.so.2 (0x00007ff6af874000) libz.so.1 => /lib64/libz.so.1 (0x00007ff6af65d000) liblzma.so.5 => /lib64/liblzma.so.5 (0x00007ff6af437000) libicui18n.so.58 => not found libicuuc.so.58 => not found libicudata.so.58 => not found libutil.so.1 => /lib64/libutil.so.1 (0x00007ff6af233000) librt.so.1 => /lib64/librt.so.1 (0x00007ff6af02a000) libcrypt.so.1 => /lib64/libcrypt.so.1 (0x00007ff6aedf3000) libc.so.6 => /lib64/libc.so.6 (0x00007ff6aea30000) /lib64/ld-linux-x86-64.so.2 (0x00005634c289c000) libfreebl3.so => /lib64/libfreebl3.so (0x00007ff6ae82c000)
通过 LDD 发现 uwsgi 找不到三个包（具体就是 not found 的三个）
于是就把anaconda3/lib 下相应的包软链到/lib64下去（64bit 机器，如果时32bit 机器则软链到/lib下）
(py3) [root@localhost ~]# ln -s /root/anaconda3/lib/libicui18n.so.58 /lib64/libicui18n.so.58 (py3) [root@localhost ~]# ln -s /root/anaconda3/lib/libicuuc.so.58 /lib64/libicuuc.so.58 (py3) [root@localhost ~]# ln -s /root/anaconda3/lib/libicudata.so.58 /lib64/libicudata.so.58
这样缺失的三个包补充了，那么在使用ldd 测试结果如下
(py3) [root@localhost ~]# ldd /root/anaconda3/envs/py3/bin/uwsgi /root/anaconda3/envs/py3/bin/uwsgi: /lib64/./libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /lib64/libicui18n.so.58) /root/anaconda3/envs/py3/bin/uwsgi: /lib64/./libstdc++.so.6: version `CXXABI_1.3.9' not found (required by /lib64/libicui18n.so.58) /root/anaconda3/envs/py3/bin/uwsgi: /lib64/./libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /lib64/libicuuc.so.58) /root/anaconda3/envs/py3/bin/uwsgi: /lib64/./libstdc++.so.6: version `CXXABI_1.3.9' not found (required by /lib64/libicuuc.so.58)
这说明还是缺失CXXABI_ 之类的东西，使用 strings 命令查看结果如下
[root@localhost lib64]# strings /usr/lib64/libstdc++.so.6|grep CXXABI CXXABI_1.3 CXXABI_1.3.1 CXXABI_1.3.2 CXXABI_1.3.3 CXXABI_1.3.4 CXXABI_1.3.5 CXXABI_1.3.6 CXXABI_1.3.7 CXXABI_TM_1
确实没有CXXABI_1.3.8 CXXABI_1.3.9 之类的东西，那么就把 anaconda3 下的libstdc++.so.6移到/lib64下面, libstdc++.so.6就是libstdc++.so.6.0.24的软链（可以去/lib64下查看ll libstc*），既然确实那就把 anconda3下的高版本高 copy 过去就是
把libstdc++.so.6.0.24拷贝到/lib64目录下。 cp libstdc++.so.6.0.24 /lib64/ 删除原来的libstdc++.so.6符号连接。 rm -rf libstdc++.so.6 新建新符号连接。 ln -s libstdc++.so.6.0.24 libstdc++.so.6 再次执行查看结果符合就哦了。
(py3) [root@localhost lib64]# uwsgi *** Starting uWSGI 2.0.17 (64bit) on [Fri May 4 16:07:20 2018] *** compiled with version: 4.8.5 20150623 (Red Hat 4.8.5-16) on 02 May 2018 11:23:18 os: Linux-3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 nodename: localhost machine: x86_64 clock source: unix pcre jit disabled detected number of CPU cores: 6 current working directory: /usr/lib64 detected binary path: /root/anaconda3/envs/py3/bin/uwsgi uWSGI running as root, you can use --uid/--gid/--chroot options *** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** *** WARNING: you are running uWSGI without its master process manager *** your processes number limit is 4096 your memory page size is 4096 bytes detected max file descriptor number: 65536 lock engine: pthread robust mutexes thunder lock: disabled (you can enable it with --thunder-lock) uWSGI running as root, you can use --uid/--gid/--chroot options *** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** uWSGI running as root, you can use --uid/--gid/--chroot options *** WARNING: you are running uWSGI as root !!! (use the --uid flag) *** The -s/--socket option is missing and stdin is not a socket.