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java.lang.Objectorg.apache.hadoop.hbase.zookeeper.ZooKeeperListener
org.apache.hadoop.hbase.ZKNamespaceManager
@InterfaceAudience.Private public class ZKNamespaceManager
Class servers two purposes: 1. Broadcast NamespaceDescriptor information via ZK (Done by the Master) 2. Consume broadcasted NamespaceDescriptor changes (Done by the RegionServers)
Field Summary |
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Fields inherited from class org.apache.hadoop.hbase.zookeeper.ZooKeeperListener |
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watcher |
Constructor Summary | |
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ZKNamespaceManager(ZooKeeperWatcher zkw)
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Method Summary | |
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NamespaceDescriptor |
get(String name)
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NavigableSet<NamespaceDescriptor> |
list()
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void |
nodeChildrenChanged(String path)
Called when an existing node has a child node added or removed. |
void |
nodeCreated(String path)
Called when a new node has been created. |
void |
nodeDataChanged(String path)
Called when an existing node has changed data. |
void |
nodeDeleted(String path)
Called when a node has been deleted |
void |
remove(String name)
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void |
start()
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void |
update(NamespaceDescriptor ns)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ZKNamespaceManager(ZooKeeperWatcher zkw) throws IOException
IOException
Method Detail |
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public void start() throws IOException
IOException
public NamespaceDescriptor get(String name)
public void update(NamespaceDescriptor ns) throws IOException
IOException
public void remove(String name) throws IOException
IOException
public NavigableSet<NamespaceDescriptor> list() throws IOException
IOException
public void nodeCreated(String path)
ZooKeeperListener
nodeCreated
in class ZooKeeperListener
path
- full path of the new nodepublic void nodeDeleted(String path)
ZooKeeperListener
nodeDeleted
in class ZooKeeperListener
path
- full path of the deleted nodepublic void nodeDataChanged(String path)
ZooKeeperListener
nodeDataChanged
in class ZooKeeperListener
path
- full path of the updated nodepublic void nodeChildrenChanged(String path)
ZooKeeperListener
nodeChildrenChanged
in class ZooKeeperListener
path
- full path of the node whose children have changed
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