Tuesday, April 3, 2012

Using Informix 32-bit library with Cognos on 64-bit server

1. Getting and installing the Informix 32-bit ODBC libraries
a. I used connect.3.50.UC6.LINUX.tar for Cognos 10.1/Redhat 5.4. One can get the libraries here:
b) Create a group and user for informix
#/usr/sbin/groupadd informix
#/usr/sbin/useradd -g informix
#password informix
#mkdir /home/informix/connect // copy connect.3.50.UC6.LINUX.tar /home/informix/connect
#cd /home/informix/connect
#tar -xvf connect.3.50.UC6.LINUX.tar
#./installconn // default install is to /opt/IBM/informix
#vi $INFORMIXDIR/etc/sqlhosts //example: ifx_server1 onsoctcp IP service
#vi /etc/services //add the service from sqlhosts with port and
2. Set up Cognos baadmin profile
#su - baadmin //change to baadmin user
$vi .bashrc
a) set the following environment variables: INFORMIXDIR, INFORMIXSERVER
export INFORMIXDIR=/opt/IBM/informix
export INFORMIXSERVER=server_name

b) add the informix bin folder to the PATH
c) add the informix shared libraries to the path
I also modified the PATH and LD_LIBRARY_PATH variables for Cognos libraries:
export PATH=$PATH:/opt/ibm/cognos/c10_64/bin:/opt/ibm/cognos/c10_64/bin64export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/ibm/cognos/c10_64/bin (/opt/ibm/cognos/c10_64/bin contains libcogudaif.so. I also created a soft link in /usr/lib to this
shared library and have not tried to remove it).
d) Stop and Restart all servers
#/etc/init.d cognos10 stop
#/etc/init.d cognos10 start

Don't forget to change /etc/services and add the informix tcp connection info that is in the sqlhosts file
Also odbc.ini and odbcinst.ini are required for odbc connectivity in /etc folder
Also all libodbc*.* files are required in /usr/lib

With the above, I am able to us the Cognos Informix connection to connect to Informix

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