Where is the Log and why my Variables don't refresh?

Question

Hi everyone!
My first question is:
The log of the ODI, where is it? Not the logs of the executions or the Scenarios, when or who, by example: The Odi save when me "SUPERVISOR" start a session, or, if me "SUPERVISOR" delete a commponent, or, the ODI try to connect a database, or something like this, i was explain my point??
The other question is:
My Varibles don't take their value, when i create a new one, refresh and choose the agent, and then, have nothing, miss the value, example:
I have this instruction, i use any database (ORACLE 11g):
SELECT 'sysdate' FROM DUAL;
When i refresh the variable the result is this:
SELECT '' FROM DUAL;
The same behavior happens when use JAVA instruction, i try many things, but i can't resolved the problem, check my enviroment variables, the ODIPARAMS, reainstalling JAVA...

Answer 1

Hello,
You right, but the log of the executions is not that i want, the log of the application himsefl, because, the log only save a part of all operation i found logs, but doesn't me something about the actions, i want the behavior of ODI, the reason why is 'cause this do things that i can't explain, one of thoose causes is the many repetitions of sessions, the log only shows that X scenario starts many times but not why, i hope explain myself.
The other part ... I have two enviroments, one of thoose works perfectly with my variables, but the other one not, i export and import the work and master repository from the first to the second enviroment, but can't work. You say that i will declare and refresh my variable from the package, on the tab behind, i do that but nothing happen, my variable can't be a global variable because it works from the begin, any idea?