| Package | Description |
|---|---|
| org.apache.hadoop.ha |
| Class | Description |
|---|---|
| ActiveStandbyElector |
This class implements a simple library to perform leader election on top of
Apache Zookeeper.
|
| ActiveStandbyElector.ActiveNotFoundException |
Exception thrown when there is no active leader
|
| ActiveStandbyElector.ActiveStandbyElectorCallback |
Callback interface to interact with the ActiveStandbyElector object.
|
| BadFencingConfigurationException |
Indicates that the operator has specified an invalid configuration
for fencing methods.
|
| FailoverFailedException |
Exception thrown to indicate service failover has failed.
|
| FenceMethod |
A fencing method is a method by which one node can forcibly prevent
another node from making continued progress.
|
| HAAdmin.UsageInfo |
UsageInfo class holds args and help details.
|
| HAServiceProtocol |
Protocol interface that provides High Availability related primitives to
monitor and fail-over the service.
|
| HAServiceProtocol.HAServiceState |
An HA service may be in active or standby state.
|
| HAServiceProtocol.RequestSource | |
| HAServiceProtocol.StateChangeRequestInfo |
Information describing the source for a request to change state.
|
| HAServiceStatus | |
| HAServiceTarget |
Represents a target of the client side HA administration commands.
|
| HealthCheckFailedException |
Exception thrown to indicate that health check of a service failed.
|
| HealthMonitor.State | |
| NodeFencer |
This class parses the configured list of fencing methods, and
is responsible for trying each one in turn while logging informative
output.
|
| ServiceFailedException |
Exception thrown to indicate that an operation performed
to modify the state of a service or application failed.
|
| ZKFCProtocol |
Protocol exposed by the ZKFailoverController, allowing for graceful
failover.
|
| ZKFCRpcServer |
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