[OPENJPA-2139] OpenJPA fails to recover from a broken database on startup

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 2.2.0
• Assignee: Mark Struberg
• Reporter: Mark Struberg
• Created: 22/Feb/12 12:32
• Updated: 05/Apr/15 16:16

Description

The following scenario:

1.) turn off the database
2.) perform a query against the database
3.) turn on the database
4.) try to re-run the query from 2.)

In 4.) you will get the following Exception:

openjpa-2.2.0-r422266:1244990 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: An error occurred while parsing the query filter "SELECT k FROM DbEnumKey AS k where k.type=:typ ORDER BY k.ordinal". Error message: The name "DbEnumKey" is not a recognized entity or identifier. Known entity names: []

Basically the whole app is stale afterwards!

Solution: caching the entities might only be done if a connection can be established.