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Initialization parameter processes

edited Feb 5, 2013 10:15AM in Database Administration (MOSC) 7 commentsAnswered ✓

Hi,

I have upgraded (I'm in testing mode) from Oracle 10.2.0.5 to 11.2.0.3.3 (applied patch 13923374). While running in 10.2.0.5 my application worked fine with processes=300. Now in 11.2.0.3.3 I was getting "ORA-12519: no appropriate service handlers". Investigated in  "Oracle knowledge" and got information that I should increase number of processes. So, I changed the initialization parameter to 450 (still got error), then to 600 (still go error), then to 1000 and I'm not getting the error anymore. My questions are:

- What else could cause the error?

- Do I really need processes=1000?

- I am testing and using only two users for the test. When I go to production I will have about 20 concurrent users. Will processese=1000 be enough?

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