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java.lang.Objectorg.apache.hadoop.hbase.client.HConnectionManager
public class HConnectionManager
A non-instantiable class that manages connections to multiple tables in
multiple HBase instances.
Used by HTable
and HBaseAdmin
Nested Class Summary | |
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static class |
HConnectionManager.ClientZKWatcher
This class is responsible to handle connection and reconnection to a zookeeper quorum. |
Constructor Summary | |
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protected |
HConnectionManager()
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Method Summary | |
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static void |
deleteAllConnections(boolean stopProxy)
Delete information for all connections. |
static void |
deleteConnectionInfo(org.apache.hadoop.conf.Configuration conf,
boolean stopProxy)
Delete connection information for the instance specified by configuration |
static HConnectionManager.ClientZKWatcher |
getClientZooKeeperWatcher(org.apache.hadoop.conf.Configuration conf)
Get a watcher of a zookeeper connection for a given quorum address. |
static HConnection |
getConnection(org.apache.hadoop.conf.Configuration conf)
Get the connection object for the instance specified by the configuration If no current connection exists, create a new connection for that instance |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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protected HConnectionManager()
Method Detail |
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public static HConnection getConnection(org.apache.hadoop.conf.Configuration conf)
conf
- configuration
public static void deleteConnectionInfo(org.apache.hadoop.conf.Configuration conf, boolean stopProxy)
conf
- configurationstopProxy
- stop the proxy as wellpublic static void deleteAllConnections(boolean stopProxy)
stopProxy
- stop the proxy as wellpublic static HConnectionManager.ClientZKWatcher getClientZooKeeperWatcher(org.apache.hadoop.conf.Configuration conf) throws IOException
conf
- configuration
IOException
- if a remote or network exception occurs
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