[jboss-user] [JBoss jBPM] - Re: job executor explained in a nutshell

[kadlecp]

Hello,

I use Oracle and when I try to set isolation level of data source to TRANSACTION_REPEATABLE_READ I got exception that READ_COMMITTED and SERIALIZABLE are the only allowed isolation levels. 
When I try to set isolation level of data source to TRANSACTION_SERIALIZABLE it works, but I receive a lot of exceptions from jBPM when using multithreaded JobExecutor that the running transactions are not able to serialize.

Is READ_COMMITTED sufficient isolation level for Oracle?

Regards
Pavel

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