gerrit.onap Code Review - music/mdbc.git/commit

author	Arthur Martella <arthur.martella.1@att.com>
	Fri, 27 Sep 2019 20:38:37 +0000 (16:38 -0400)
committer	Arthur Martella <arthur.martella.1@att.com>
	Fri, 27 Sep 2019 20:54:20 +0000 (16:54 -0400)
commit	3c1bd98f91094be3b9a3484e4afba0b29f621b40
tree	121683c61a981d7708c95964dc1d7a1f58b378c9	tree \| snapshot
parent	524904eaedd84201ae008c9098aebcaa69181d14	commit \| diff

Deadlock detection and recovery with new Music version

Update MDBC to new Music version
Fix errors caused by update
Deadlock detection and recovery

Replaces improperly stacked commits at https://gerrit.onap.org/r/c/music/mdbc/+/96357/2

Issue-ID: MUSIC-502
Signed-off-by: Martella, Arthur <arthur.martella.1@att.com>
Change-Id: I96b87ba73b811a672e03895e0124d78d9bf409b1

18 files changed:

mdbc-server/pom.xml		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/MdbcConnection.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/StateManager.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/TestUtils.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/Utils.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicInterface.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicMixin.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/mixins/PostgresMixin.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/ownership/OwnershipAndCheckpoint.java		diff \| blob \| history
mdbc-server/src/main/resources/key.properties	[new file with mode: 0644]	blob
mdbc-server/src/main/resources/music.properties		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/MdbcTestUtils.java		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/mixins/MusicMixinTest.java		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/mixins/PostgresMixinTest.java		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/ownership/OwnershipAndCheckpointTest.java		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/test/CrossSiteTest.java		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/test/TransactionTest.java		diff \| blob \| history
pom.xml		diff \| blob \| history

The most crucial recipe is a multi-site database cache (mdbc) that enable ONAP components that maintain state in a SQL database to avail the benefits of MUSIC without compromising their need to use transactional SQL DBs. These ONAP components can rely on existing db clustering techniques like MariaDB for transactionality and complex querying within a site. mdbc will intercept each of these read/write calls to the db cluster and mirror this state to other geo-distributed sites through MUSIC either synchronously or asynchronously (configurable at a table-level). For example, components like the ONAP Service Orchestrator that use MariaDB to maintain state can directly use this recipe with no change to their SQL code.

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