org.apache.hadoop.hive.metastore.hooks

Interface JDOConnectionURLHook

All Known Implementing Classes:

DummyJdoConnectionUrlHook

public interface JDOConnectionURLHook

JDOConnectURLHook is used to get the URL that JDO uses to connect to the database that stores the metastore data. Classes implementing this must be thread-safe (for Thrift server).

Method Summary

Modifier and Type	Method and Description
java.lang.String	getJdoConnectionUrl(Configuration conf) Gets the connection URL to supply to JDO.
void	notifyBadConnectionUrl(java.lang.String url) Alerts this that the connection URL was bad.

Method Detail

getJdoConnectionUrl

java.lang.String getJdoConnectionUrl(Configuration conf)
                              throws java.lang.Exception

Gets the connection URL to supply to JDO. In addition to initialization, this method will be called after a connection failure for each reconnect attempt.

Parameters:

conf - The configuration used to initialize this instance of the HMS

Returns:

the connection URL

Throws:

java.lang.Exception

notifyBadConnectionUrl

void notifyBadConnectionUrl(java.lang.String url)

Alerts this that the connection URL was bad. Can be used to collect stats, etc.

Parameters:

url -