Is any possible to switch 4.2.0 to 4.6.0 without re-installation

[udayatom]

Hello Dev,

                In our infrastructure we are using  RHQ 4.2.0,  we have already configured many JBOSS instances in 4.2.0. Now we intrested in 4.6.0, Any backup mechanism of all cofiguration, what we configured in existing. if it is how to handle it. OR  Any easy way to switch the RHQ 4.2.0 to RHQ 4.6.0 without reinstall. 

Regards,

Udaya

[mazz]

You should be able to upgrade from 4.2 to 4.6 using the normal upgrade mechanisms, however, please read the 4.6 release notes since a problem existed in 4.2 that requires you to make a manual DB update prior to upgrading - I'm referring to the yellow box that says:

Upgrade note
If upgrading from RHQ 4.2 (4.3 and later are not affected) you must first make a manual change to your database.  Have a look at the first note on the RHQ 4.4 release notes

When you read the 4.4. release notes, it says:

Upgrade note

If upgrading from RHQ 4.2 you must first make a manual change to your database.  Apply this change only if upgrading from RHQ 4.2, not earlier versions.  Execute the following SQL to update the schema version from 2.114 to 2.115:

update rhq_system_config set property_value='2.115', default_property_value='2.115' where property_key='DB_SCHEMA_VERSION';

After this update proceed with the upgrade normally.

[jayshaughnessy]

Also, 4.7 was just released, so if you're going to upgrade you may want to move to 4.7 as opposed to 4.6.