I work on an AWS lightsail server with a LAMP self-contained installation stack and I want to host a second web-app in django.
Tried to install mod_wsgi to a pyenv virtual environment (3.8.3 or 3.8-dev, both with shared libraries installed) using
export APXS=/opt/USER/apache2/bin/apxs
pip install mod_wsgi (tried with and w/o wheel)
but the module mod_wsgi-py38.cpython-38-x86_64-linux-gnu.so that created is over 1MB in size.
-rwxrwxr-x 1 USER USER 1157792 Jun 21 20:15 mod_wsgi-py38.cpython-38-x86_64-linux-gnu.so
ldd gives:
ldd mod_wsgi-py38.cpython-38-x86_64-linux-gnu.so
linux-vdso.so.1 => (0x00007ffc3e198000)
libpython3.8.so.1.0 => /home/USER/.pyenv/versions/3.8-dev/lib/libpython3.8.so.1.0 (0x00007fce67120000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fce66f03000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fce66b39000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fce66935000)
libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007fce66732000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fce66429000)
/lib64/ld-linux-x86-64.so.2 (0x00007fce678f0000)
According to the manual https://modwsgi.readthedocs.io/en/develop/user-guides/installation-issues.html#lack-of-python-shared-library, that should be a problem for my server's memory performance.
Is there something else that I could do in order to get a ~250KB in size module as the docs describe it?
mod_wsgi.so size of 1.1MB is fine nowadays.
Newbie questions regarding installation and python shared library
Related
Operating System: Red Hat Enterprise Linux Server 7.9 (Maipo)
Apache version: Apache/2.4.46 (Unix)
Shibboleth version: 3.2.0
Error when trying to stop Apache (apachectl stop):
httpd: Syntax error on line 528 of <Apache>/conf/httpd.conf: Syntax error on line 13 of <Apache>/conf/myshib.conf: Cannot load /usr/lib64/shibboleth/mod_shib_24.so into server: /usr/lib64/libldap_r-2.4.so.2: undefined symbol: ber_sockbuf_io_udp
Line 528 of <Apache>/conf/httpd.conf:
Include conf/myshib.conf
Line 13 of <Apache>/conf/myshib.conf:
LoadModule mod_shib /usr/lib64/shibboleth/mod_shib_24.so
Attempted - https://superuser.com/questions/1283252/slappasswd-symbol-lookup-error-undefined-symbol-ber-sockbuf-io-udp
But running "export LD_LIBRARY_PATH=/lib64:$LD_LIBRARY_PATH" did not resolve the issue.
Output of "ldd /usr/lib64/libldap_r-2.4.so.2" command:
linux-vdso.so.1 => (0x00007ffd1c76e000)
liblber-2.4.so.2 => /usr/lib64/liblber-2.4.so.2 (0x00007f5b3e87d000)
libresolv.so.2 => /usr/lib64/libresolv.so.2 (0x00007f5b3e663000)
libsasl2.so.3 => /usr/lib64/libsasl2.so.3 (0x00007f5b3e446000)
libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007f5b3e1d4000)
libcrypto.so.10 => /usr/lib64/libcrypto.so.10 (0x00007f5b3dd71000)
libssl3.so => /usr/lib64/libssl3.so (0x00007f5b3db14000)
libsmime3.so => /usr/lib64/libsmime3.so (0x00007f5b3d8ec000)
libnss3.so => /usr/lib64/libnss3.so (0x00007f5b3d5b8000)
libnssutil3.so => /usr/lib64/libnssutil3.so (0x00007f5b3d388000)
libplds4.so => /usr/lib64/libplds4.so (0x00007f5b3d184000)
libplc4.so => /usr/lib64/libplc4.so (0x00007f5b3cf7f000)
libnspr4.so => /usr/lib64/libnspr4.so (0x00007f5b3cd41000)
libpthread.so.0 => /usr/lib64/libpthread.so.0 (0x00007f5b3cb25000)
libdl.so.2 => /usr/lib64/libdl.so.2 (0x00007f5b3c921000)
libc.so.6 => /usr/lib64/libc.so.6 (0x00007f5b3c553000)
libcrypt.so.1 => /usr/lib64/libcrypt.so.1 (0x00007f5b3c31c000)
libgssapi_krb5.so.2 => /usr/lib64/libgssapi_krb5.so.2 (0x00007f5b3c0cf000)
libkrb5.so.3 => /usr/lib64/libkrb5.so.3 (0x00007f5b3bde6000)
libk5crypto.so.3 => /usr/lib64/libk5crypto.so.3 (0x00007f5b3bbb3000)
libcom_err.so.2 => /usr/lib64/libcom_err.so.2 (0x00007f5b3b9af000)
libkrb5support.so.0 => /usr/lib64/libkrb5support.so.0 (0x00007f5b3b79f000)
libz.so.1 => /usr/lib64/libz.so.1 (0x00007f5b3b589000)
librt.so.1 => /usr/lib64/librt.so.1 (0x00007f5b3b381000)
/lib64/ld-linux-x86-64.so.2 (0x00007f5b3eceb000)
libfreebl3.so => /usr/lib64/libfreebl3.so (0x00007f5b3b17e000)
libkeyutils.so.1 => /usr/lib64/libkeyutils.so.1 (0x00007f5b3af7a000)
libselinux.so.1 => /usr/lib64/libselinux.so.1 (0x00007f5b3ad53000)
libpcre.so.1 => /usr/lib64/libpcre.so.1 (0x00007f5b3aaf1000)
Then attempted - https://unix.stackexchange.com/questions/193320/yum-corrupted-on-rhel-6
Output of "for lib in /lib64/.so.; do if nm -D $lib|grep ber_sockbuf_io_udp; then echo $lib; fi; done" command:
000000000020e020 D ber_sockbuf_io_udp
/lib64/liblber-2.4.so.2
000000000020e020 D ber_sockbuf_io_udp
/lib64/liblber-2.4.so.2.10.7
U ber_sockbuf_io_udp
/lib64/libldap-2.4.so.2
U ber_sockbuf_io_udp
/lib64/libldap-2.4.so.2.10.7
U ber_sockbuf_io_udp
/lib64/libldap_r-2.4.so.2
U ber_sockbuf_io_udp
/lib64/libldap_r-2.4.so.2.10.7
Output of "rpm -qf /lib64/liblber-2.4.so.2" command:
openldap-2.4.44-22.el7.x86_64
Tried to install 'openldap' but it already existed
yum install openldap-2.4.44-22.el7.x86_64
Loaded plugins: langpacks, product-id, search-disabled-repos
Package openldap-2.4.44-22.el7.x86_64 already installed and latest version
Nothing to do
Restarted entire server and re-installed 'openldap' using "yum reinstall openldap.x86_64" command but no luck.
Apache starts and returns a response when accessing https://hostname.domain.com but downloading the Shib Metadata XML file via Apache using URL https://hostname.domain.com/Shibboleth.sso/Metadata fails.
Apologies if I missed adding anything obvious.
Update:
Works when using older Shibboleth version 3.1.0
similar thread here: https://unix.stackexchange.com/questions/193320/yum-corrupted-on-rhel-6
In my case (RHEL7.8 + Apache 2.4 + Shibboleth 3.2) I was able to resolve the issue by replacing the /usr/lib64/libldap_r-2.4.so.2 library with the one from the Apache directory: <APACHE_ROOT>/HTTPServer/openldap/lib/libldap_r-2.4.so.2
Run:
locate libldap_r-2.4.so.2
to find the location of the library.
In my case I got:
/app/ptc/Windchill_12.0/HTTPServer/openldap/lib/libldap_r-2.4.so.2
/app/ptc/Windchill_12.0/HTTPServer/openldap/lib/libldap_r-2.4.so.2.10.12
/usr/lib/libldap_r-2.4.so.2
/usr/lib/libldap_r-2.4.so.2.10.7
/usr/lib64/libldap_r-2.4.so.2
/usr/lib64/libldap_r-2.4.so.2.10.7
I noticed that the lib used in the error was in /usr/lib64 dir.
I replaced it and now ./apachectl -t reports
"Syntax OK"
I don't know enough about Linux to explain what is going on here or what the correct fix is.
This was my observation and resolved the issue, I believe my steps are a hack though.
Anyone with a more elegant, upgrade proof solution?
Reference: https://groups.google.com/g/repmgr/c/TS7QfYEoNoY
cd /usr/lib64/
ll | grep libldap
lrwxrwxrwx. 1 root root 21 Feb 11 16:42 libldap-2.4.so.2 -> libldap-2.4.so.2.10.7
-rwxr-xr-x. 1 root root 352512 Jun 6 2020 libldap-2.4.so.2.10.7
lrwxrwxrwx. 1 root root 23 Feb 11 16:42 libldap_r-2.4.so.2 -> libldap_r-2.4.so.2.10.7
-rwxr-xr-x. 1 root root 381328 Jun 6 2020 libldap_r-2.4.so.2.10.7
It does seem like /usr/lib64/libldap_r2.4.so.2 is just a symlink to libldap_r-2.4.so.2.10.7.
I wonder if there are missing or deprecated symbols in 2.10.7...
Is there any way to tell the diff in the 2 versions?
UPDATE
I noticed that you can make use of the LoadFile command in the Apache conf.
Adding LoadFile <APACHE_ROOT>/HTTPServer/openldap/lib/libldap_r-2.4.so.2 in my 00-shib.conf file before the LoadModule mod_shib /usr/lib64/shibboleth/mod_shib_24.so entry resolved the issue.
This still seems like a workaround / hack to me and there may be an underlying issue with the libraries / different versions.
I'm trying to compile llvm-ar (and only that) from LLVM statically because I need a static ar implementation for another purpose. AFAICS the official LLVM building documentation doesn't discuss this usage, only the option to build with shared libs, which is disabled by default anyway. Adding -static to CLAGS or the CMake option LLVM CFLAGS doesn't change the build process at all.
This is the build process I'm running right now:
cmake -DLLVM_ENABLE_PROJECTS=llvm-ar -G "Unix Makefiles" ../llvm
make -j3 llvm-ar
which then builds a dynamic llvm-ar:
$ ldd bin/llvm-ar
linux-vdso.so.1 (0x00007fff46154000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007faa84536000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007faa84319000)
libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007faa840ef000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007faa83d66000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007faa839c8000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007faa837b0000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007faa833bf000)
/lib64/ld-linux-x86-64.so.2 (0x00007faa87163000)
How can I cause this target to be compiled statically? I'd also like to build with musl-gcc instead of the system default.
I wanted to mess around with OSSubprocess (written by Mariano Martinez Peck) from my Pharo 6.1 on my CentOS 7.4.
I searched within the Pharo Project Catalog and tried to install it.
I got an error:
ioLoadModule(/home/smalltalk/App/pharo6.1-64/pharo-vm/lib/pharo/5.0-201805090836/libgit2.so):
libcurl-gnutls.so.4: cannot open shared object file: No such file or directory
tryLoading(/home/smalltalk/App/pharo6.1-64/pharo-vm/lib/pharo/5.0-201805090836/libgit2.so/.libs/,libgit2.so): stat(/home/smalltalk/App/pharo6.1-64/pharo-vm/lib/pharo/5.0-201805090836/libgit2.so/.libs/) Not a directory
ioLoadModule(/home/smalltalk/App/pharo6.1-64/pharo-vm/lib/pharo/5.0-201805090836/libgit2.so):
libcurl-gnutls.so.4: cannot open shared object file: No such file or directory
tryLoading(/home/smalltalk/App/pharo6.1-64/pharo-vm/lib/pharo/5.0-201805090836/libgit2.so/.libs/,libgit2.so): stat(/home/smalltalk/App/pharo6.1-64/pharo-vm/lib/pharo/5.0-201805090836/libgit2.so/.libs/) Not a directory
Apparently, some libraries as libcurl-gnutls are needed by the libgit2.so.
ls -la | grep git
-rw-r--r--. 1 smalltalk smalltalk 3019447 May 9 08:55 libgit2.so
-rw-r--r--. 1 smalltalk smalltalk 3019447 May 9 08:55 libgit2.so.0.25.1
-rw-r--r--. 1 smalltalk smalltalk 3019447 May 9 08:55 libgit2.so.25
[smalltalk#smalltalk 5.0-201805090836]$ pwd
/home/smalltalk/App/pharo6.1-64/pharo-vm/lib/pharo/5.0-201805090836
When I check the dependencies with ldd libgit2.so:
ldd: warning: you do not have execution permission for `./libgit2.so'
linux-vdso.so.1 => (0x00007ffcd7aea000)
libcurl-gnutls.so.4 => not found
libz.so.1 => /lib64/libz.so.1 (0x00007f09ff332000)
libssl.so.1.0.0 => not found
libcrypto.so.1.0.0 => not found
libssh2.so.1 => /lib64/libssh2.so.1 (0x00007f09ff107000)
librt.so.1 => /lib64/librt.so.1 (0x00007f09feeff000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f09fece3000)
libc.so.6 => /lib64/libc.so.6 (0x00007f09fe91f000)
libssl.so.10 => /lib64/libssl.so.10 (0x00007f09fe6ad000)
libcrypto.so.10 => /lib64/libcrypto.so.10 (0x00007f09fe24c000)
/lib64/ld-linux-x86-64.so.2 (0x000056133cf8c000)
libgssapi_krb5.so.2 => /lib64/libgssapi_krb5.so.2 (0x00007f09fdffe000)
libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007f09fdd16000)
libcom_err.so.2 => /lib64/libcom_err.so.2 (0x00007f09fdb12000)
libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f09fd8de000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f09fd6da000)
libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007f09fd4cc000)
libkeyutils.so.1 => /lib64/libkeyutils.so.1 (0x00007f09fd2c7000)
libresolv.so.2 => /lib64/libresolv.so.2 (0x00007f09fd0ad000)
libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f09fce85000)
libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f09fcc23000)
The issue is apparently with:
libcurl-gnutls.so.4 => not found
libssl.so.1.0.0 => not found
libcrypto.so.1.0.0 => not found
libcurl-gnutls.so.4 library is not apparently shipped with CentOS 7 at all:
We just don't supply anything called libcurl-gnutls* at all. Our curl doesn't use gnutls.
libssl.so.1.0.0 is ancient (same goes for libcrypto.so.1.0.0). If I check my libssl:
sudo ls -l /usr/lib64/libssl*
-rwxr-xr-x. 1 root root 341024 May 16 17:20 /usr/lib64/libssl3.so
lrwxrwxrwx. 1 root root 16 Jan 31 13:40 /usr/lib64/libssl.so -> libssl.so.1.0.2k
lrwxrwxrwx. 1 root root 16 Jan 31 13:34 /usr/lib64/libssl.so.10 -> libssl.so.1.0.2k
-rwxr-xr-x. 1 root root 470336 Aug 4 2017 /usr/lib64/libssl.so.1.0.2k
sudo ls -l /usr/lib64/libcrypto*
lrwxrwxrwx. 1 root root 19 Jan 31 13:40 /usr/lib64/libcrypto.so -> libcrypto.so.1.0.2k
lrwxrwxrwx. 1 root root 19 Jan 31 13:34 /usr/lib64/libcrypto.so.10 -> libcrypto.so.1.0.2k
-rwxr-xr-x. 1 root root 2512448 Aug 4 2017 /usr/lib64/libcrypto.so.1.0.2k
The CentOS 7 details are:
Static hostname: smalltalk
Icon name: computer-vm
Chassis: vm
Machine ID: beb4030b979d4cdcbf51ec99034121fc
Boot ID: 02ef7d00b2e74489bdb78dead7e2fcf8
Virtualization: kvm Operating System: CentOS Linux 7 (Core)
CPE OS Name: cpe:/o:centos:centos:7
Kernel: Linux 3.10.0-693.17.1.el7.x86_64
Architecture: x86-64
Now the million dollar question:
How do you deal with such a situation? Is there a reasonable way to recompile the whole Pharo VM or just the libgit2 library against the newer libraries' versions?
This seems related to a question asked here: http://forum.world.st/Pharo-download-with-wget-td5099253.html
The suggested solution in the thread and the one that also works for me is to created a symbolic link:
ln -s /usr/lib64/libcurl.so.4 /usr/lib64/libcurl-gnutls.so.4
I am running php 5.4.17 on OS X 10.9.1.
I have installed pear using this command:
wget http://pear.php.net/go-pear.phar
php -d detect_unicode=0 go-pear.phar
Then I have installed pecl_http with:
pecl install pecl_http
I have added extension lines to my php.ini and add 'x' permission to library binaries. If I run php -i I get:
http
HTTP Support => enabled
Extension Version => 2.0.4
Used Library => Compiled => Linked
libz => 1.2.5 => 1.2.5
libcurl => 7.30.0 => 7.30.0
libevent => disabled => disabled
Directive => Local Value => Master Value
http.etag.mode => crc32b => crc32b
But if I try to run php script with HttpRequest inside I still get:
Fatal error: Class 'HttpRequest' not found
Can somebody give me a clue what am I doing wrong?
You are using pecl_http 2.0.4 and probably refer to documentation from http://www.php.net/manual/en/class.httprequest.php which is for older version. There is a post that's already explained your problem:
PECL_HTTP not recognised php ubuntu
In fact, you should refer to the documentation defined here:
http://devel-m6w6.rhcloud.com/mdref/http
To verify: if (class_exists('http\Client\Request')) printf 'pecl_http v2 is installed'
I'm trying to emulate a firmware with qemu, but I'm getting an error while trying to execute it.
First of all I extracted the firmware filesystem to a folder, and copied de qemu-mipsel file to it:
bin cdrom dev etc home init lib linuxrc mnt opt proc qemu-mipsel root sbin sys tango tmp udev usr var
Then I executed the emulator with chroot:
chroot . ./qemu-mipsel ./bin/ls
And I get the following error:
chroot: failed to run command `./qemu-mipsel': No such file or directory
Googling the error I found that it means that qemu depends on libraries not included in the chroot environment so I searched for them:
linux-vdso.so.1 => (0x00007fffe79ff000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fcd9da57000)
libgthread-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 (0x00007fcd9d855000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007fcd9d55d000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fcd9d2db000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fcd9d0be000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fcd9cd34000)
/lib64/ld-linux-x86-64.so.2 (0x00007fcda007a000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fcd9caf7000)
And some libraries are missing in ./lib/:
linux-vdso.so.1
libgthread-2.0.so.0
libglib-2.0.so.0
/lib64/ld-linux-x86-64.so.2
libpcre.so.3
How could I solve this problem? Can I create a symbolic link to the system library or should I copy them? Also linux-vdso.so.1 is not present on the system, where could I get it? Regards.
linux-vdso.so.1 is in reality the kernel. The other files, you get them from your GNU/Linux distribution of choice (e.g. Debian, from the source packages eglibc, pcre3 and glib2.0). You must indeed copy them into the chroot. For /lib64/ld-linux-x86-64.so.2 the pathname must be exact, as that path is hard-coded into the binary.
It seems you’re running Debian already, from the multiarch’d paths, which is good, because you’ll need to distinguish between host and target libraries.
Alternatively, you can compile and link qemu-mipsel statically.