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1. Re: Getting "jboss.data-source-config.<jndi name> is already registered"
shawkins Jan 19, 2018 9:24 AM (in response to mnsrmov)This is a problem that occurs on specific versions of WildFly, see earlier postings such as - Always getting "Service jboss.data-source-config.<DS_NAME> is already registered" error when deploying vdb
The root issue is [WFLY-6773] Provide ability to start/stop Data Source creation without restart of server - JBoss Issue Tracker and it affects Teiid as outlined in [TEIID-4592] Creation, deletion and recreation of data source fails with exception - JBoss Issue Tracker
I had thought that later Designer versions helped mitigate the issue, but that may not be the case. Unfortunately WFLY-6773 wasn't addressed until WildFly 11. Teiid 10 does run on WildFly 11, but doesn't have a compatible Designer yet.
The simplest workaround should be to restart the WildFly server to let data source creating / deletion take full effect.
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2. Re: Getting "jboss.data-source-config.<jndi name> is already registered"
blafond Jan 22, 2018 2:54 PM (in response to shawkins)Note that if you upgrade to Oxygen and install latest JBoss Tools Teiid Designer Stable Update the data source management should be more stable and delete should work for JDBC sources.