Compare error "OCIHandleAlloc failed with ORA--2" and "Cannot retrieve activation info" (4320983)

Compare errored out with the following messages in the event_log and compare log.

Desvr log----
000: Error 1804 calling OCIInitialize in de_trans_logon
000: Error 1804 calling de_trans_logon (de_trans_ora_logon,L1044)
000: ERROR: Illegal state: Cannot retrieve activation info:status=-2: object cache: o.DALV3I: 1

Envirnomental Settings

Things to Check:

Resolution 1:

1) Unset ORA_NLS and ORA_TZFILE in the users envirnoment.

Resolution 2::