com.datastax.driver.core.exceptions
Class NoHostAvailableException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
              com.datastax.driver.core.exceptions.DriverException
                  com.datastax.driver.core.exceptions.NoHostAvailableException

All Implemented Interfaces:

Serializable

public class NoHostAvailableException
extends DriverException

Exception thrown when a query cannot be performed because no host are available. This exception is thrown if

• either there is no host live in the cluster at the moment of the query
• all host that have been tried have failed due to a connection problem

For debugging purpose, the list of hosts that have been tried along with the failure cause can be retrieved using the errors method.

See Also:

Serialized Form

Constructor Summary

NoHostAvailableException(Map<InetAddress,String> errors)

Method Summary

Map<InetAddress,String>

getErrors() Return the hosts tried along with descriptions of the error encountered while trying them.

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getMessage, 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

NoHostAvailableException

public NoHostAvailableException(Map<InetAddress,String> errors)

Method Detail

getErrors

public Map<InetAddress,String> getErrors()

Return the hosts tried along with descriptions of the error encountered while trying them.

Returns:

a map containing for each tried host a description of the error triggered when trying it.