@InterfaceAudience.Private public class MasterMaintenanceModeTracker extends ZooKeeperListener
watcher
Constructor and Description |
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MasterMaintenanceModeTracker(ZooKeeperWatcher watcher) |
Modifier and Type | Method and Description |
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boolean |
isInMaintenanceMode() |
void |
nodeChildrenChanged(java.lang.String path)
Called when an existing node has a child node added or removed.
|
void |
nodeCreated(java.lang.String path)
Called when a new node has been created.
|
void |
nodeDeleted(java.lang.String path)
Called when a node has been deleted
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void |
start()
Starts the tracking of whether master is in Maintenance Mode.
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getWatcher, nodeDataChanged
public MasterMaintenanceModeTracker(ZooKeeperWatcher watcher)
public boolean isInMaintenanceMode()
public void start()
public void nodeCreated(java.lang.String path)
ZooKeeperListener
nodeCreated
in class ZooKeeperListener
path
- full path of the new nodepublic void nodeDeleted(java.lang.String path)
ZooKeeperListener
nodeDeleted
in class ZooKeeperListener
path
- full path of the deleted nodepublic void nodeChildrenChanged(java.lang.String path)
ZooKeeperListener
nodeChildrenChanged
in class ZooKeeperListener
path
- full path of the node whose children have changed