com.sleepycat.je.rep
Class UnknownMasterException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
              com.sleepycat.je.DatabaseException
                  com.sleepycat.je.OperationFailureException
                      com.sleepycat.je.rep.StateChangeException
                          com.sleepycat.je.rep.UnknownMasterException

All Implemented Interfaces:

Serializable

public class UnknownMasterException
extends StateChangeException

Indicates that the underlying operation requires communication with a Master, but that a Master was not available.

This exception typically indicates there is a system level problem. It could indicate for example, that a sufficient number of nodes are not available to hold an election and elect a Master, or that this node was having problems with the network and was unable to communicate with other nodes.

The application can choose to retry the operation, potentially logging the problem, until the underlying system level problem has been addressed.

See Also:

Serialized Form

Constructor Summary

UnknownMasterException(com.sleepycat.je.txn.Locker locker, StateChangeEvent stateChangeEvent)

UnknownMasterException(String message)
Used when the inability to determine a master is not related to a state change.

UnknownMasterException(String message, Exception reason)
Used when the inability to determine a master is not related to a state change but some inability to communicate with a node identified as a master.

Method Summary

Methods inherited from class com.sleepycat.je.rep.StateChangeException

getEvent

Methods inherited from class com.sleepycat.je.DatabaseException

getMessage

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

UnknownMasterException

public UnknownMasterException(com.sleepycat.je.txn.Locker locker,
                              StateChangeEvent stateChangeEvent)

UnknownMasterException

public UnknownMasterException(String message)

Used when the inability to determine a master is not related to a state change.

UnknownMasterException

public UnknownMasterException(String message,
                              Exception reason)

Used when the inability to determine a master is not related to a state change but some inability to communicate with a node identified as a master. The reason contains further explanation.