Haeinsa is linearly scalable multi-row, multi-table transaction library for HBase. Haeinsa uses two-phase locking and optimistic concurrency control for implementing transaction. The isolation level of transaction is serializable.
Please see Haeinsa Wiki for further information.
APIs of Haeinsa is really similar to APIs of HBase. Please see How to Use and API Usage document for further information.
HaeinsaTransactionManager tm = new HaeinsaTransactionManager(tablePool);
HaeinsaTableIface table = tablePool.getTable("test");
byte[] family = Bytes.toBytes("data");
byte[] qualifier = Bytes.toBytes("status");
HaeinsaTransaction tx = tm.begin(); // start transaction
HaeinsaPut put1 = new HaeinsaPut(Bytes.toBytes("user1"));
put1.add(family, qualifier, Bytes.toBytes("Hello World!"));
table.put(tx, put1);
HaeinsaPut put2 = new HaeinsaPut(Bytes.toBytes("user2"));
put2.add(family, qualifier, Bytes.toBytes("Linearly Scalable!"));
table.put(tx, put2);
tx.commit(); // commit transaction to HBase
Copyright (C) 2013-2015 VCNC Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.