Myrna van Lunteren created DERBY-6797: -----------------------------------------
Summary: If a (machine/jvm) crash happens during hard upgrade, derby does not roll back the upgrade. Key: DERBY-6797 URL: https://issues.apache.org/jira/browse/DERBY-6797 Project: Derby Issue Type: Bug Components: Store Affects Versions: 10.11.1.3, 10.12.0.0 Reporter: Myrna van Lunteren When a crash happens during hard upgrade of derby, the upgrade -up to that point - is not rolled back. Depending on where the crash happens this might leave a broken database behind. This makes it extra important to create a backup before doing a hard upgrade. I have not tested this with a soft upgrade. I will attach a test case which uses the upgrade test suite framework and uses a call of SanityManager.DEBUG_SET("upgrade_abort") to send a flag, and a change in impl/sql/catalog/DD_version to listen for this flag. Thus, it's only a test that would run in a sane environment. But this test does show that even if we see the error during hard upgrade, the resulting database appears to be in the newer version. I have manually tested this with 10.11 (by modifying DD_version in 10.11 to throw the error regardless of sanity manager or not) and with 10.12 by running my new test. -- This message was sent by Atlassian JIRA (v6.3.4#6332)