Class QuorumUnavailableException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

com.loomcache.common.exception.LoomException

com.loomcache.common.exception.QuorumUnavailableException

All Implemented Interfaces:

Serializable

public final class QuorumUnavailableException
extends LoomException

Thrown when quorum is lost (majority of nodes down).

This exception indicates that the cluster has lost quorum, meaning that the number of available nodes is less than required for consensus operations. Without quorum, the cluster cannot make progress on writes or leader election.

This typically indicates a serious cluster health issue that requires investigation and remediation (e.g., restarting failed nodes).

Since:

1.0

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
QuorumUnavailableException(int available, int required)	Creates a new QuorumUnavailableException.

Method Summary

Modifier and Type	Method	Description
int	getAvailableNodes()	Gets the number of currently available (healthy) nodes.
int	getNodesNeeded()	Calculates how many more nodes are needed to restore quorum.
int	getRequiredNodes()	Gets the number of nodes required to maintain quorum.

Methods inherited from class Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class Object

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

Constructor Details

QuorumUnavailableException

public QuorumUnavailableException(int available,
 int required)

Creates a new QuorumUnavailableException.

Parameters:

available - the number of available (healthy) nodes

required - the number of nodes required for quorum

Method Details

getAvailableNodes

public int getAvailableNodes()

Gets the number of currently available (healthy) nodes.

Returns:

the count of available nodes

getRequiredNodes

public int getRequiredNodes()

Gets the number of nodes required to maintain quorum.

Returns:

the quorum size (typically majority of cluster)

getNodesNeeded

public int getNodesNeeded()

Calculates how many more nodes are needed to restore quorum.

Returns:

the number of nodes needed, or 0 if quorum is already available