Java Code Examples for org.apache.hadoop.hbase.zookeeper.ZKUtil#NodeAndData
The following examples show how to use
org.apache.hadoop.hbase.zookeeper.ZKUtil#NodeAndData .
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Example 1
Source File: ZKSecretWatcher.java From hbase with Apache License 2.0 | 6 votes |
private void refreshNodes(List<ZKUtil.NodeAndData> nodes) { for (ZKUtil.NodeAndData n : nodes) { String path = n.getNode(); String keyId = ZKUtil.getNodeName(path); try { byte[] data = n.getData(); if (data == null || data.length == 0) { LOG.debug("Ignoring empty node "+path); continue; } AuthenticationKey key = (AuthenticationKey)Writables.getWritable( data, new AuthenticationKey()); secretManager.addKey(key); } catch (IOException ioe) { LOG.error(HBaseMarkers.FATAL, "Failed reading new secret key for id '" + keyId + "' from zk", ioe); watcher.abort("Error deserializing key from znode "+path, ioe); } } }
Example 2
Source File: ZKPermissionWatcher.java From hbase with Apache License 2.0 | 6 votes |
private void refreshNodes(List<ZKUtil.NodeAndData> nodes) { for (ZKUtil.NodeAndData n : nodes) { if (Thread.interrupted()) { // Use Thread.interrupted so that we clear interrupt status break; } if (n.isEmpty()) continue; String path = n.getNode(); String entry = (ZKUtil.getNodeName(path)); try { refreshAuthManager(entry, n.getData()); } catch (IOException ioe) { LOG.error("Failed parsing permissions for table '" + entry + "' from zk", ioe); } } }
Example 3
Source File: ZKSecretWatcher.java From hbase with Apache License 2.0 | 5 votes |
public void start() throws KeeperException { watcher.registerListener(this); // make sure the base node exists ZKUtil.createWithParents(watcher, keysParentZNode); if (ZKUtil.watchAndCheckExists(watcher, keysParentZNode)) { List<ZKUtil.NodeAndData> nodes = ZKUtil.getChildDataAndWatchForNewChildren(watcher, keysParentZNode); refreshNodes(nodes); } }
Example 4
Source File: ZKSecretWatcher.java From hbase with Apache License 2.0 | 5 votes |
@Override public void nodeCreated(String path) { if (path.equals(keysParentZNode)) { try { List<ZKUtil.NodeAndData> nodes = ZKUtil.getChildDataAndWatchForNewChildren(watcher, keysParentZNode); refreshNodes(nodes); } catch (KeeperException ke) { LOG.error(HBaseMarkers.FATAL, "Error reading data from zookeeper", ke); watcher.abort("Error reading new key znode "+path, ke); } } }
Example 5
Source File: ZKSecretWatcher.java From hbase with Apache License 2.0 | 5 votes |
@Override public void nodeChildrenChanged(String path) { if (path.equals(keysParentZNode)) { // keys changed try { List<ZKUtil.NodeAndData> nodes = ZKUtil.getChildDataAndWatchForNewChildren(watcher, keysParentZNode); refreshNodes(nodes); } catch (KeeperException ke) { LOG.error(HBaseMarkers.FATAL, "Error reading data from zookeeper", ke); watcher.abort("Error reading changed keys from zookeeper", ke); } } }
Example 6
Source File: ZKSecretWatcher.java From hbase with Apache License 2.0 | 5 votes |
/** * refresh keys */ synchronized void refreshKeys() { try { List<ZKUtil.NodeAndData> nodes = ZKUtil.getChildDataAndWatchForNewChildren(watcher, keysParentZNode); refreshNodes(nodes); } catch (KeeperException ke) { LOG.error(HBaseMarkers.FATAL, "Error reading data from zookeeper", ke); watcher.abort("Error reading changed keys from zookeeper", ke); } }