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Is DAS Thread safe ?
DAS design should support thread safety, but we have done no explicit testing on this area.
Initializing a DAS and using across multiple DAS calls should be OK and safe as long as you are using the same config file. I'd recommend initializing the DAS in a sync method tough.
I'm getting "Feature 'Config' not found." after migrating my application for after M2 codebase.
There was a change (see http://issues.apache.org/jira/browse/TUSCANY-899). To fix this, changed the attribute "xmlns"'s value of the "config" tag to "http:///org.apache.tuscany.das.rdb/config.xsd".