public void deletereRcursive(CuratorFramework zk, String path) throws Exception {
String npath = PathUtils.normalize_path(path);
if (existsNode(zk, npath, false)) {
zk.delete().guaranteed().deletingChildrenIfNeeded().forPath(npath);
}
}
private void deleteNode() throws Exception {
String localNodePath = nodePath.getAndSet(null);
if (localNodePath != null) {
try {
client.delete().guaranteed().forPath(localNodePath);
} catch (KeeperException.NoNodeException ignore) {
// ignore
}
}
}
/**
* 移除房间的red5临时子节点
*
* @param nodename
* @return
*/
public boolean removeRoomChildRed5Node(String roomname) {
try {
logger.debug(String.format("移除房间%s的子节点red5", roomname));
client.delete().forPath(ROOMNODE + "/" + roomname + RED5);
return true;
} catch (Exception e) {
logger.error("ZooKeeperWrapper.deleteRed5ChildNode出现异常", e);
return false;
}
}
@Override
public void removeOffset(
TopicName topicName, String subscriptionName, KafkaTopicName topic, int partition)
throws Exception {
String offsetPath =
KafkaZookeeperPaths.partitionOffsetPath(
kafkaNamesMapper.toConsumerGroupId(Subscription.getId(topicName, subscriptionName)),
topic,
partition);
curatorFramework.delete().forPath(offsetPath);
}
public boolean removeRoomProcessorChildNode() {
try {
logger.info("移除roomprocessor节点:" + this.RPchildnode);
String path = ROOMPROCESSORNODE + "/" + this.RPchildnode;
Stat stat = client.checkExists().forPath(path);
if (stat != null) client.delete().forPath(path);
return true;
} catch (Exception e) {
logger.error("移除roomprocessor节点:" + this.RPchildnode + "出错", e);
return false;
}
}
/**
* 移除房间的roomprocessor临时子节点，并从backup中移除节点信息
*
* @param roomname
* @return
*/
public boolean removeRoomChildRPNode(String roomname) {
try {
logger.debug(String.format("移除房间%s的子节点roomprocessor", roomname));
String path = ROOMNODE + "/" + roomname + ROOMPROCESSOR;
backup.remove(path);
Stat tmpRPStat = client.checkExists().forPath(path);
if (tmpRPStat != null) client.delete().forPath(path);
return true;
} catch (Exception e) {
logger.error(String.format("移除房间%s的子节点roomprocessor失败", roomname), e);
return false;
}
}
/**
* 创建roomprocessornode下的roomprocessor 临时节点,并赋值 将节点信息添加到backup
*
* @param nodename roomprocessor的ip+prot
* @param value
* @return
*/
private boolean createRoomProcessorChildNode(String nodename, String value) {
logger.debug("创建roomprocessornode下的临时节点，节点名：" + nodename);
try {
String path = ROOMPROCESSORNODE + "/" + nodename;
backup.put(path, value);
Stat tmpRPChildStat = client.checkExists().forPath(path);
if (tmpRPChildStat != null) client.delete().forPath(path);
client.create().withMode(CreateMode.EPHEMERAL).forPath(path, value.getBytes(charset));
return true;
} catch (Exception e) {
logger.error("创建roomprocessornode下的临时节点失败", e);
return false;
}
}
private void processBackgroundCallbackClosedState(CuratorEvent event) {
String path = null;
if (event.getResultCode() == KeeperException.Code.NODEEXISTS.intValue()) {
path = event.getPath();
} else if (event.getResultCode() == KeeperException.Code.OK.intValue()) {
path = event.getName();
}
if (path != null) {
try {
client.delete().guaranteed().inBackground().forPath(path);
} catch (Exception e) {
log.error("Could not delete node after close", e);
}
}
}
private static void deletePathsNotIn(
CuratorFramework curator, List<String> paths, String target, boolean dryRun)
throws Exception {
List<String> zkPaths = curator.getChildren().forPath(target);
for (String path : zkPaths) {
path = "/" + path;
if (!paths.contains(path)) {
if (!dryRun) {
curator.delete().guaranteed().forPath(path);
;
} else {
System.out.printf("Deleting path %s and everything under it\n", path);
}
}
}
}
private void internalUnregisterService(final Entry<T> entry) throws Exception {
if (entry != null) {
synchronized (entry) {
if (entry.cache != null) {
CloseableUtils.closeQuietly(entry.cache);
entry.cache = null;
}
String path = pathForInstance(entry.service.getName(), entry.service.getId());
try {
client.delete().guaranteed().forPath(path);
} catch (KeeperException.NoNodeException ignore) {
// ignore
}
}
}
}
public void delete(String yarnAppId) {
String path = this.zkRoot + "/" + yarnAppId;
try {
lock.acquire();
if (curator.checkExists().forPath(path) != null) {
curator.delete().forPath(path);
LOG.info("delete yarn app {}, path {} ", yarnAppId, path);
}
} catch (Exception e) {
LOG.error("failed to delete yarn app {}, path {} ", yarnAppId, path);
} finally {
try {
lock.release();
} catch (Exception e) {
LOG.error("fail releasing lock", e);
}
}
}
private static void remove(CuratorFramework client, String command, String[] args)
throws Exception {
if (args.length != 1) {
System.err.println("syntax error (expected remove <path>): " + command);
return;
}
String name = args[0];
if (name.contains("/")) {
System.err.println("Invalid node name" + name);
return;
}
String path = ZKPaths.makePath(PATH, name);
try {
client.delete().forPath(path);
} catch (KeeperException.NoNodeException e) {
// ignore
}
}
@VisibleForTesting
protected void internalRegisterService(ServiceInstance<T> service) throws Exception {
byte[] bytes = serializer.serialize(service);
String path = pathForInstance(service.getName(), service.getId());
final int MAX_TRIES = 2;
boolean isDone = false;
for (int i = 0; !isDone && (i < MAX_TRIES); ++i) {
try {
CreateMode mode =
(service.getServiceType() == ServiceType.DYNAMIC)
? CreateMode.EPHEMERAL
: CreateMode.PERSISTENT;
client.create().creatingParentsIfNeeded().withMode(mode).forPath(path, bytes);
isDone = true;
} catch (KeeperException.NodeExistsException e) {
client.delete().forPath(path); // must delete then re-create so that watchers fire
}
}
}
public void delete(String yarnAppId, String jobId) {
String path = this.zkRoot + "/" + yarnAppId + "/" + jobId;
try {
lock.acquire();
if (curator.checkExists().forPath(path) != null) {
curator.delete().deletingChildrenIfNeeded().forPath(path);
LOG.info("delete job {} for yarn app {}, path {} ", jobId, yarnAppId, path);
String yarnPath = this.zkRoot + "/" + yarnAppId;
if (curator.getChildren().forPath(yarnPath).size() == 0) {
delete(yarnAppId);
}
}
} catch (Exception e) {
LOG.error("failed to delete job {} for yarn app {}, path {}, {}", jobId, yarnAppId, path, e);
} finally {
try {
lock.release();
} catch (Exception e) {
LOG.error("fail releasing lock", e);
}
}
}
public static void detele(CuratorFramework client, String path) throws Exception {
client.delete().forPath(path);
}
public void deleteNode(CuratorFramework zk, String path) throws Exception {
zk.delete().forPath(PathUtils.normalize_path(path));
}
public static void guaranteedDelete(CuratorFramework client, String path) throws Exception {
// delete the given node and guarantee(保证) that it completes
client.delete().guaranteed().forPath(path);
}