org.apache.hadoop.hbase.zookeeper.ZNodePaths.getZNodeForReplica()方法的使用及代码示例-6ren

org.apache.hadoop.hbase.zookeeper.ZNodePaths.getZNodeForReplica()方法的使用及代码示例

转载作者：知者更新时间：2024-03-15 08:34:49

本文整理了Java中org.apache.hadoop.hbase.zookeeper.ZNodePaths.getZNodeForReplica()方法的一些代码示例，展示了ZNodePaths.getZNodeForReplica()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ZNodePaths.getZNodeForReplica()方法的具体详情如下：
包路径：org.apache.hadoop.hbase.zookeeper.ZNodePaths
类名称：ZNodePaths
方法名：getZNodeForReplica

ZNodePaths.getZNodeForReplica介绍

[英]Get the znode string corresponding to a replicaId
[中]获取与replicaId对应的znode字符串

代码示例

代码示例来源：origin: apache/hbase

public static void deleteMetaLocation(ZKWatcher zookeeper, int replicaId)
 throws KeeperException {
 if (replicaId == RegionInfo.DEFAULT_REPLICA_ID) {
  LOG.info("Deleting hbase:meta region location in ZooKeeper");
 } else {
  LOG.info("Deleting hbase:meta for " + replicaId + " region location in ZooKeeper");
 }
 try {
  // Just delete the node.  Don't need any watches.
  ZKUtil.deleteNode(zookeeper, zookeeper.getZNodePaths().getZNodeForReplica(replicaId));
 } catch(KeeperException.NoNodeException nne) {
  // Has already been deleted
 }
}
/**

代码示例来源：origin: apache/hbase

private void unassignMetaReplica(HbckInfo hi) throws IOException, InterruptedException,
KeeperException {
 undeployRegions(hi);
 ZKUtil.deleteNode(zkw, zkw.getZNodePaths().getZNodeForReplica(hi.metaEntry.getReplicaId()));
}

代码示例来源：origin: apache/hbase

private static void waitUntilZnodeAvailable(int replicaId) throws Exception {
 String znode = util.getZooKeeperWatcher().getZNodePaths().getZNodeForReplica(replicaId);
 int i = 0;
 while (i < 1000) {
  if (ZKUtil.checkExists(util.getZooKeeperWatcher(), znode) == -1) {
   Thread.sleep(100);
   i++;
  } else break;
 }
 if (i == 1000) throw new IOException("znode for meta replica " + replicaId + " not available");
}

代码示例来源：origin: apache/hbase

try {
 ZKUtil.setData(zookeeper,
   zookeeper.getZNodePaths().getZNodeForReplica(replicaId), data);
} catch(KeeperException.NoNodeException nne) {
 if (replicaId == RegionInfo.DEFAULT_REPLICA_ID) {
    ", create it");
 ZKUtil.createAndWatch(zookeeper, zookeeper.getZNodePaths().getZNodeForReplica(replicaId),
     data);

代码示例来源：origin: apache/hbase

private void unassignExcessMetaReplica(int numMetaReplicasConfigured) {
  final ZKWatcher zooKeeper = master.getZooKeeper();
  // unassign the unneeded replicas (for e.g., if the previous master was configured
  // with a replication of 3 and now it is 2, we need to unassign the 1 unneeded replica)
  try {
   List<String> metaReplicaZnodes = zooKeeper.getMetaReplicaNodes();
   for (String metaReplicaZnode : metaReplicaZnodes) {
    int replicaId = zooKeeper.getZNodePaths().getMetaReplicaIdFromZnode(metaReplicaZnode);
    if (replicaId >= numMetaReplicasConfigured) {
     RegionState r = MetaTableLocator.getMetaRegionState(zooKeeper, replicaId);
     LOG.info("Closing excess replica of meta region " + r.getRegion());
     // send a close and wait for a max of 30 seconds
     ServerManager.closeRegionSilentlyAndWait(master.getClusterConnection(),
       r.getServerName(), r.getRegion(), 30000);
     ZKUtil.deleteNode(zooKeeper, zooKeeper.getZNodePaths().getZNodeForReplica(replicaId));
    }
   }
  } catch (Exception ex) {
   // ignore the exception since we don't want the master to be wedged due to potential
   // issues in the cleanup of the extra regions. We can do that cleanup via hbck or manually
   LOG.warn("Ignoring exception " + ex);
  }
 }
}

代码示例来源：origin: apache/hbase

@Test
public void testZookeeperNodesForReplicas() throws Exception {
 // Checks all the znodes exist when meta's replicas are enabled
 ZKWatcher zkw = TEST_UTIL.getZooKeeperWatcher();
 Configuration conf = TEST_UTIL.getConfiguration();
 String baseZNode = conf.get(HConstants.ZOOKEEPER_ZNODE_PARENT,
   HConstants.DEFAULT_ZOOKEEPER_ZNODE_PARENT);
 String primaryMetaZnode = ZNodePaths.joinZNode(baseZNode,
   conf.get("zookeeper.znode.metaserver", "meta-region-server"));
 // check that the data in the znode is parseable (this would also mean the znode exists)
 byte[] data = ZKUtil.getData(zkw, primaryMetaZnode);
 ProtobufUtil.toServerName(data);
 for (int i = 1; i < 3; i++) {
  String secZnode = ZNodePaths.joinZNode(baseZNode,
    conf.get("zookeeper.znode.metaserver", "meta-region-server") + "-" + i);
  String str = zkw.getZNodePaths().getZNodeForReplica(i);
  assertTrue(str.equals(secZnode));
  // check that the data in the znode is parseable (this would also mean the znode exists)
  data = ZKUtil.getData(zkw, secZnode);
  ProtobufUtil.toServerName(data);
 }
}

代码示例来源：origin: apache/hbase

ServerName serverName = null;
try {
 byte[] data = ZKUtil.getData(zkw, zkw.getZNodePaths().getZNodeForReplica(replicaId));
 if (data != null && data.length > 0 && ProtobufUtil.isPBMagicPrefix(data)) {
  try {

代码示例来源：origin: apache/hbase

@Test
 public void testIsClientReadable() {
  ZNodePaths znodePaths = new ZNodePaths(HBaseConfiguration.create());
  assertTrue(znodePaths.isClientReadable(znodePaths.baseZNode));
  assertTrue(znodePaths.isClientReadable(znodePaths.getZNodeForReplica(0)));
  assertTrue(znodePaths.isClientReadable(znodePaths.masterAddressZNode));
  assertTrue(znodePaths.isClientReadable(znodePaths.clusterIdZNode));
  assertTrue(znodePaths.isClientReadable(znodePaths.tableZNode));
  assertTrue(znodePaths.isClientReadable(ZNodePaths.joinZNode(znodePaths.tableZNode, "foo")));
  assertTrue(znodePaths.isClientReadable(znodePaths.rsZNode));

  assertFalse(znodePaths.isClientReadable(znodePaths.tableLockZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.balancerZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.regionNormalizerZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.clusterStateZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.drainingZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.splitLogZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.backupMasterAddressesZNode));
 }
}

代码示例来源：origin: apache/hbase

@Ignore @Test // The close silently doesn't work any more since HBASE-14614. Fix.
public void testHBaseFsckWithFewerMetaReplicaZnodes() throws Exception {
 ClusterConnection c = (ClusterConnection)ConnectionFactory.createConnection(
   TEST_UTIL.getConfiguration());
 RegionLocations rl = c.locateRegion(TableName.META_TABLE_NAME, HConstants.EMPTY_START_ROW,
   false, false);
 HBaseFsckRepair.closeRegionSilentlyAndWait(c,
   rl.getRegionLocation(2).getServerName(), rl.getRegionLocation(2).getRegionInfo());
 ZKWatcher zkw = TEST_UTIL.getZooKeeperWatcher();
 ZKUtil.deleteNode(zkw, zkw.getZNodePaths().getZNodeForReplica(2));
 // check that problem exists
 HBaseFsck hbck = doFsck(TEST_UTIL.getConfiguration(), false);
 assertErrors(hbck, new ERROR_CODE[]{ERROR_CODE.UNKNOWN,ERROR_CODE.NO_META_REGION});
 // fix the problem
 hbck = doFsck(TEST_UTIL.getConfiguration(), true);
 // run hbck again to make sure we don't see any errors
 hbck = doFsck(TEST_UTIL.getConfiguration(), false);
 assertErrors(hbck, new ERROR_CODE[]{});
}

代码示例来源：origin: org.apache.hbase/hbase-zookeeper

public void deleteMetaLocation(ZKWatcher zookeeper, int replicaId)
 throws KeeperException {
 if (replicaId == RegionInfo.DEFAULT_REPLICA_ID) {
  LOG.info("Deleting hbase:meta region location in ZooKeeper");
 } else {
  LOG.info("Deleting hbase:meta for " + replicaId + " region location in ZooKeeper");
 }
 try {
  // Just delete the node.  Don't need any watches.
  ZKUtil.deleteNode(zookeeper, zookeeper.getZNodePaths().getZNodeForReplica(replicaId));
 } catch(KeeperException.NoNodeException nne) {
  // Has already been deleted
 }
}
/**

代码示例来源：origin: org.apache.hbase/hbase-client

@Test
 public void testIsClientReadable() {
  ZNodePaths znodePaths = new ZNodePaths(HBaseConfiguration.create());
  assertTrue(znodePaths.isClientReadable(znodePaths.baseZNode));
  assertTrue(znodePaths.isClientReadable(znodePaths.getZNodeForReplica(0)));
  assertTrue(znodePaths.isClientReadable(znodePaths.masterAddressZNode));
  assertTrue(znodePaths.isClientReadable(znodePaths.clusterIdZNode));
  assertTrue(znodePaths.isClientReadable(znodePaths.tableZNode));
  assertTrue(znodePaths.isClientReadable(ZNodePaths.joinZNode(znodePaths.tableZNode, "foo")));
  assertTrue(znodePaths.isClientReadable(znodePaths.rsZNode));

  assertFalse(znodePaths.isClientReadable(znodePaths.tableLockZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.balancerZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.regionNormalizerZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.clusterStateZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.drainingZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.splitLogZNode));
  assertFalse(znodePaths.isClientReadable(znodePaths.backupMasterAddressesZNode));
 }
}

代码示例来源：origin: org.apache.hbase/hbase-it

private static void waitUntilZnodeAvailable(int replicaId) throws Exception {
 String znode = util.getZooKeeperWatcher().getZNodePaths().getZNodeForReplica(replicaId);
 int i = 0;
 while (i < 1000) {
  if (ZKUtil.checkExists(util.getZooKeeperWatcher(), znode) == -1) {
   Thread.sleep(100);
   i++;
  } else break;
 }
 if (i == 1000) throw new IOException("znode for meta replica " + replicaId + " not available");
}

代码示例来源：origin: org.apache.hbase/hbase-zookeeper

try {
 ZKUtil.setData(zookeeper,
   zookeeper.getZNodePaths().getZNodeForReplica(replicaId), data);
} catch(KeeperException.NoNodeException nne) {
 if (replicaId == RegionInfo.DEFAULT_REPLICA_ID) {
    ", create it");
 ZKUtil.createAndWatch(zookeeper, zookeeper.getZNodePaths().getZNodeForReplica(replicaId),
     data);

代码示例来源：origin: org.apache.hbase/hbase-server

@Test
public void testZookeeperNodesForReplicas() throws Exception {
 // Checks all the znodes exist when meta's replicas are enabled
 ZKWatcher zkw = TEST_UTIL.getZooKeeperWatcher();
 Configuration conf = TEST_UTIL.getConfiguration();
 String baseZNode = conf.get(HConstants.ZOOKEEPER_ZNODE_PARENT,
   HConstants.DEFAULT_ZOOKEEPER_ZNODE_PARENT);
 String primaryMetaZnode = ZNodePaths.joinZNode(baseZNode,
   conf.get("zookeeper.znode.metaserver", "meta-region-server"));
 // check that the data in the znode is parseable (this would also mean the znode exists)
 byte[] data = ZKUtil.getData(zkw, primaryMetaZnode);
 ProtobufUtil.toServerName(data);
 for (int i = 1; i < 3; i++) {
  String secZnode = ZNodePaths.joinZNode(baseZNode,
    conf.get("zookeeper.znode.metaserver", "meta-region-server") + "-" + i);
  String str = zkw.getZNodePaths().getZNodeForReplica(i);
  assertTrue(str.equals(secZnode));
  // check that the data in the znode is parseable (this would also mean the znode exists)
  data = ZKUtil.getData(zkw, secZnode);
  ProtobufUtil.toServerName(data);
 }
}

代码示例来源：origin: org.apache.hbase/hbase-zookeeper

ServerName serverName = null;
try {
 byte[] data = ZKUtil.getData(zkw, zkw.getZNodePaths().getZNodeForReplica(replicaId));
 if (data != null && data.length > 0 && ProtobufUtil.isPBMagicPrefix(data)) {
  try {

代码示例来源：origin: org.apache.hbase/hbase-server

@Ignore @Test // The close silently doesn't work any more since HBASE-14614. Fix.
public void testHBaseFsckWithFewerMetaReplicaZnodes() throws Exception {
 ClusterConnection c = (ClusterConnection)ConnectionFactory.createConnection(
   TEST_UTIL.getConfiguration());
 RegionLocations rl = c.locateRegion(TableName.META_TABLE_NAME, HConstants.EMPTY_START_ROW,
   false, false);
 HBaseFsckRepair.closeRegionSilentlyAndWait(c,
   rl.getRegionLocation(2).getServerName(), rl.getRegionLocation(2).getRegionInfo());
 ZKWatcher zkw = TEST_UTIL.getZooKeeperWatcher();
 ZKUtil.deleteNode(zkw, zkw.getZNodePaths().getZNodeForReplica(2));
 // check that problem exists
 HBaseFsck hbck = doFsck(TEST_UTIL.getConfiguration(), false);
 assertErrors(hbck, new ERROR_CODE[]{ERROR_CODE.UNKNOWN,ERROR_CODE.NO_META_REGION});
 // fix the problem
 hbck = doFsck(TEST_UTIL.getConfiguration(), true);
 // run hbck again to make sure we don't see any errors
 hbck = doFsck(TEST_UTIL.getConfiguration(), false);
 assertErrors(hbck, new ERROR_CODE[]{});
}

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