The following errors are observed during Shareplex startup:
sp_cop -u2100 &
Running 64 bit SharePlex binaries against 32 bit SharePlex data is not supported
Please install 32 bit SharePlex and restart
Invalid upgrade to 64 bit binaries - exiting
 + Done(1) sp_cop -u2100 &
Cause 1: Oracle 32 bit libraries are not installed or the path to 32 bit libraries is not correctly defined.
Cause 2: Hung shared memory and semaphores
1. Check to see if the 32 bit Oracle libraries are installed, usually they are in $ORACLE_HOME/lib32.
2. Check to see if the environment variables LIBPATH and LD_LIBRARY_PATH are set in the environment that launches sp_cop. Moreover, make sure to have the Oracle 32 bit library path prior to the 64 bit library path. This is because Shareplex is a 32 bit application and would require 32 bit libraries. In the following example they do NOT:
env | sort
3. Correct these two environment variable settings as the following example shows:
4. Then restart sp_cop.