[jira] [Created] (AMBARI-16207) Provide Ability To Pass JPA / EclipseLink Properties to the DataSource

["Jonathan Hurley (JIRA)" <ji...@apache.org>]

Jonathan Hurley created AMBARI-16207:
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             Summary: Provide Ability To Pass JPA / EclipseLink Properties to the DataSource
                 Key: AMBARI-16207
                 URL: https://issues.apache.org/jira/browse/AMBARI-16207
             Project: Ambari
          Issue Type: Improvement
          Components: ambari-server
    Affects Versions: 2.4.0
            Reporter: Jonathan Hurley
            Assignee: Jonathan Hurley
             Fix For: 2.4.0


There is currently no way to pass JPA or EclipseLink specific connection/DataSource properties in from {{ambari.properties}}. Although there exists {{Configuration.getDatabaseCustomProperties}}, these are actually _driver specific_ properties and not properties for EclipseLink.

For example, if I wanted to pass in to the JDBC Driver {{foo=bar}}, then I could set
{{server.jdbc.properties.foo=bar}} and this will get translated into {{eclipselink.jdbc.property.foo=bar}}.

However, if I wanted to set any of the EclipseLink or JPA specific DataSource properties (see http://www.eclipse.org/eclipselink/api/2.6/org/eclipse/persistence/config/PersistenceUnitProperties.html) I would not be able to.

Proposal is to add something similar to the custom driver properties:
{code}
server.persistence.properties.eclipselink.jdbc.batch-writing.size=25
{code}

Which could get translated into
{code}
properties.put("eclipselink.jdbc.batch-writing.size", 25)
{code}



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