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

author	st782s <statta@research.att.com>
	Mon, 21 Jan 2019 12:21:46 +0000 (07:21 -0500)
committer	st782s <statta@research.att.com>
	Tue, 22 Jan 2019 20:57:08 +0000 (15:57 -0500)
commit	cfb34c1b4f6701555df3bf7b9bdbf8caace966bc
tree	92f0d8bed956213306d05177e5a54a6c2bf04b53	tree \| snapshot
parent	71f938d4b604fbe8d16c1fefceb29587c427377e	commit \| diff

Add Eventual consistency logic

Issue-ID: MUSIC-276
Change-Id: Ie6b2508c57f0a7b677f48f87c991adcd613147cc
Signed-off-by: st782s <statta@research.att.com>

14 files changed:

mdbc-server/src/main/java/org/onap/music/mdbc/MdbcConnection.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/MdbcServerLogic.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/Range.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/configurations/Eventual.java	[new file with mode: 0644]	blob
mdbc-server/src/main/java/org/onap/music/mdbc/configurations/NodeConfiguration.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/examples/MdbcEventualTestClient.java	[new file with mode: 0644]	blob
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/MySQLMixin.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/ownership/Dag.java		diff \| blob \| history
mdbc-server/src/main/java/org/onap/music/mdbc/tables/MusicTxDigest.java		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/MySQLMixinTest.java		diff \| blob \| history
mdbc-server/src/test/java/org/onap/music/mdbc/ownership/OwnershipAndCheckpointTest.java		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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