Python – NodeJs running in command line shows “Aborted”

node.jspython

I am using an Amazon EC2 instance using CentOs 5.4. I installed nodejs in different servers that follow the same architecture. In the current server I installed nodejs by following the below steps.

Installing Python

yum install gcc zlib-devel python-setuptools readline-devel
cd /usr/src
wget http://www.python.org/ftp/python/2.7.5/Python-2.7.5.tgz
tar -xzf Python-2.7.5.tgz
cd Python-2.7.5
./configure
make altinstall
python2.7 -V

Installing NODEJS

sudo yum groupinstall 'Development Tools'
sudo yum install openssl-devel
cd /usr/local/
wget http://nodejs.org/dist/node-latest.tar.gz
tar zxvf node-latest.tar.gz
cd node-v0.10.34
PYTHON=/usr/local/bin/python2.7
export PYTHON
set | grep PYTHON
python2.7 configure && make && make install
node --version

But the issue is, when ever I run the "node" command I see the following image.
enter image description here

I am not sure what has happened and how to debug it? Everything seems to be installed properly.

EDIT #1

From nodejs IRC @fullstack suggested to run "strace -f /usr/local/bin/node" – The result of this is : https://gist.github.com/aneek/0ef3d9fe1a6521fdee6a

EDIT#2
As per @fullstack's suggestion instead of using "python2.7 configure && make && make install" I tried to install with "./configure && make && make install". But error occurred (That's why I used Python2.7)
enter image description here

Please suggest. I am stuck very bad 🙁

Best Answer

Install with EPEL

wget http://download.fedoraproject.org/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm
rpm -ivh epel-release-5-4.noarch.rpm
curl -sL https://rpm.nodesource.com/setup | bash -
yum install -y nodejs

https://github.com/joyent/node/wiki/installing-node.js-via-package-manager#enterprise-linux-and-fedora

compiling python 2.7

./configure \
   --prefix=/usr/local \
   --enable-unicode=ucs4 \
   --enable-shared \
   LDFLAGS="-Wl,-rpath /usr/local/lib"

make && make altinstall

don't forget --enable-shared or you may have problems later on.

compiling mod_wsgi for python 2.7

https://code.google.com/p/modwsgi/wiki/InstallationIssues

since you did a make altinstall to install python2.7 you won't have a python-devel package to install; so you would need the mod_wsgi to refer to proper python.

./configure --with-python=/usr/local/bin/python2.7 
# then edit Makefile if you want to change DESTDIR
make && make install

... try to start httpd ...

Starting httpd: httpd: Syntax error on line 221 of /etc/httpd/conf/httpd.conf: Syntax error on line 2 of /etc/httpd/conf.d/wsgi.conf: Cannot load /opt/mod_wsgi2.7/usr/lib64/httpd/modules/mod_wsgi.so into server: libpython2.7.so.1.0: cannot open shared object file: No such file or directory

Because we are not using the same python and we didn't link the module with any particular option to make it look in the correct place, it cannot find libpython2.7.so.1.0, we can change that by making libtool check the correct place.

# use LDFLAGS to tell libtool resulting lib needs to
# look for shared libs in /usr/local/lib too.
./configure \
   --with-python=/usr/local/bin/python2.7 \
   LDFLAGS="-R/usr/local/lib"
# then edit Makefile if you want to change DESTDIR
# e.g. DESTDIR = /opt/mod_wsgi2.7
make && make install

... try to start http again ...

Starting httpd: httpd: Syntax error on line 221 of /etc/httpd/conf/httpd.conf: Syntax error on line 2 of /etc/httpd/conf.d/wsgi.conf: Cannot load /opt/mod_wsgi2.7/usr/lib64/httpd/modules/mod_wsgi.so into server: /opt/mod_wsgi2.7/usr/lib64/httpd/modules/mod_wsgi.so: cannot open shared object file: Permission denied

That last error is because my system is running selinux and the file has the default context. A quick look at stackoverflow tells me it is an selinux issue.

fixing selinux context

# ls -Z /opt/mod_wsgi2.7/usr/lib64/httpd/modules/mod_wsgi.so 
-rwxr-xr-x. root root unconfined_u:object_r:user_tmp_t:s0 /opt/mod_wsgi2.7/usr/lib64/httpd/modules/mod_wsgi.so

The fix is to use the correct context, which can be found on the original mod_wsgi module.

chcon --reference /etc/httpd/modules/mod_wsgi.so /opt/mod_wsgi2.7/usr/lib64/httpd/modules/mod_wsgi.so

Best Answer

Related Solutions

Apache Configuration – Running Python 2.7 Instead of 2.5

Python – Make mod_wsgi use python2.7.2 instead of python2.6

compiling python 2.7

compiling mod_wsgi for python 2.7

fixing selinux context

Related Topic