[HBASE-11518] doc update for how to create non-shared HConnection

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.96.2, 0.94.21, 0.98.4
• Fix Version/s: 0.99.0, 0.98.5
• Component/s: documentation
• Hadoop Flags: Reviewed
• Assignee: Qiang Tian
• Reporter: Qiang Tian
• Created: 15/Jul/14 09:52
• Updated: 06/Apr/18 17:50
• Resolved: 17/Jul/14 18:41

Description

creation for non-shared connections has changed since hbase-3777, but the doc still remains the same...

a simple test program:
public class testHbase2{
public static void main(String[] args) throws Exception

{ Configuration conf = HBaseConfiguration.create(); conf.set("hbase.zookeeper.quorum","localhost"); conf.set("hbase.zookeeper.property.clientPort", "2181"); conf.set("hbase.client.instance.id", "2"); HBaseAdmin admin = new HBaseAdmin(conf); conf.set("hbase.client.instance.id", "3"); HBaseAdmin admin2 = new HBaseAdmin(conf); }

}

public static HConnection getConnection(final Configuration conf)
throws IOException {
HConnectionKey connectionKey = new HConnectionKey(conf);
LOG.info("###create new connectionkey: " + connectionKey);
synchronized (CONNECTION_INSTANCES) {

14/07/15 18:06:08 INFO client.HConnectionManager: ###create new connectionkey: HConnectionKey{properties=

{hbase.rpc.timeout=600000, hbase.client.instance.id=2, hbase.zookeeper.quorum=localhost, hbase.client.pause=100, hbase.zookeeper.property.clientPort=2181, zookeeper.znode.parent=/hbase, hbase.client.retries.number=35}

, username='tianq'}
14/07/15 18:06:08 INFO client.HConnectionManager: ###create new connection###
14/07/15 18:06:08 INFO zookeeper.RecoverableZooKeeper: Process identifier=hconnection-0x3d7c3d7c connecting to ZooKeeper ensemble=localhost:2181
14/07/15 18:06:09 INFO client.HConnectionManager: ###create new connectionkey: HConnectionKey{properties=

{hbase.rpc.timeout=600000, hbase.client.instance.id=3, hbase.zookeeper.quorum=localhost, hbase.client.pause=100, hbase.zookeeper.property.clientPort=2181, zookeeper.znode.parent=/hbase, hbase.client.retries.number=35}

, username='tianq'}
14/07/15 18:06:09 INFO client.HConnectionManager: ###create new connection###
14/07/15 18:06:09 INFO zookeeper.RecoverableZooKeeper: Process identifier=hconnection-0xd460d46 connecting to ZooKeeper ensemble=localhost:2181