Java 如何在hazelcast 3.x中显示所有结构名称
我发现,但这是2年前的事了,对于以前的版本,它在Hz3.x中不起作用。所以,我的问题是如何在Hz3.x中实现这一点Java 如何在hazelcast 3.x中显示所有结构名称,java,hazelcast,Java,Hazelcast,我发现,但这是2年前的事了,对于以前的版本,它在Hz3.x中不起作用。所以,我的问题是如何在Hz3.x中实现这一点 像APP1 open lock 1、APP2 open lock 2一样,我如何知道已经使用的所有锁?找到了一种方法,有很多技巧,适用于任何服务 首先运行svr,然后运行cli和测试 public class PlayHZ { @Test public void test() throws ExecutionException, InterruptedExcepti
像APP1 open lock 1、APP2 open lock 2一样,我如何知道已经使用的所有锁?找到了一种方法,有很多技巧,适用于任何服务 首先运行svr,然后运行cli和测试
public class PlayHZ
{
@Test
public void test() throws ExecutionException, InterruptedException
{
HazelcastInstance hz = Hazelcast.newHazelcastInstance();
IExecutorService executor = hz.getExecutorService("gather");
Map<Member, Future<List<String>>> futures = executor.submitToAllMembers(new LockNameGather());
Thread.sleep(1000);
System.out.println("Found in member");
for (Map.Entry<Member, Future<List<String>>> entry : futures.entrySet())
{
System.out.printf("%s -> %s\n", entry.getKey(), entry.getValue().get());
}
}
@Test
public void svr() throws InterruptedException
{
HazelcastInstance hz = Hazelcast.newHazelcastInstance();
Thread.sleep(Integer.MAX_VALUE);
}
@Test
public void cli() throws InterruptedException
{
HazelcastInstance hz = Hazelcast.newHazelcastInstance();
for (int i = 0; i < 100; i++)
{
ILock lock = hz.getLock("LOCK" + i);
lock.lock();
}
Thread.sleep(Integer.MAX_VALUE);
}
private static class LockNameGather implements Callable<List<String>>, HazelcastInstanceAware, Serializable
{
transient HazelcastInstance hz;
transient NodeEngineImpl node;
@Override
public List<String> call() throws Exception
{
node = ((HazelcastInstanceImpl) hz).node.getNodeEngine();
LockService svc = node.getService(LockService.SERVICE_NAME);
return svc.getAllLocks()
.stream()
.map(LockResource::getKey)
.map(d -> node.getSerializationService().createObjectDataInput(d))
.map((r) -> {
try
{
return r.readUTF();
} catch (IOException e)
{
throw new RuntimeException(e);
}
}).collect(Collectors.toList());
}
@Override
public void setHazelcastInstance(HazelcastInstance hazelcastInstance)
{
hz = hazelcastInstance;
}
}
}
公共类PlayHZ
{
@试验
public void test()引发ExecutionException、InterruptedException
{
HazelcastInstance hz=Hazelcast.newHazelcastInstance();
IExecutorService executor=hz.getExecutorService(“收集”);
Map futures=executor.submitToAllMembers(新的LockNameGather());
睡眠(1000);
System.out.println(“在成员中找到”);
for(Map.Entry:futures.entrySet())
{
System.out.printf(“%s->%s\n”,entry.getKey(),entry.getValue().get());
}
}
@试验
public void svr()引发InterruptedException
{
HazelcastInstance hz=Hazelcast.newHazelcastInstance();
Thread.sleep(整数.MAX_值);
}
@试验
public void cli()引发InterruptedException
{
HazelcastInstance hz=Hazelcast.newHazelcastInstance();
对于(int i=0;i<100;i++)
{
ILock lock=hz.getLock(“lock”+i);
lock.lock();
}
Thread.sleep(整数.MAX_值);
}
私有静态类LockNameGather实现可调用、HazelCastInstanceWare、可序列化
{
瞬态HazelcastInstance hz;
瞬态节点工程节点;
@凌驾
公共列表调用()引发异常
{
node=((HazelcastInstanceImpl)hz).node.getNodeEngine();
LockService svc=node.getService(LockService.SERVICE\u名称);
返回svc.getAllLocks()
.stream()
.map(LockResource::getKey)
.map(d->node.getSerializationService().createObjectDataInput(d))
.map((r)->{
尝试
{
返回r.readUTF();
}捕获(IOE异常)
{
抛出新的运行时异常(e);
}
}).collect(Collectors.toList());
}
@凌驾
公共无效setHazelcastInstance(HazelcastInstance HazelcastInstance)
{
hz=Hazelcast实例;
}
}
}
找到了一种有很多技巧的方法,适用于任何服务
首先运行svr,然后运行cli和测试
public class PlayHZ
{
@Test
public void test() throws ExecutionException, InterruptedException
{
HazelcastInstance hz = Hazelcast.newHazelcastInstance();
IExecutorService executor = hz.getExecutorService("gather");
Map<Member, Future<List<String>>> futures = executor.submitToAllMembers(new LockNameGather());
Thread.sleep(1000);
System.out.println("Found in member");
for (Map.Entry<Member, Future<List<String>>> entry : futures.entrySet())
{
System.out.printf("%s -> %s\n", entry.getKey(), entry.getValue().get());
}
}
@Test
public void svr() throws InterruptedException
{
HazelcastInstance hz = Hazelcast.newHazelcastInstance();
Thread.sleep(Integer.MAX_VALUE);
}
@Test
public void cli() throws InterruptedException
{
HazelcastInstance hz = Hazelcast.newHazelcastInstance();
for (int i = 0; i < 100; i++)
{
ILock lock = hz.getLock("LOCK" + i);
lock.lock();
}
Thread.sleep(Integer.MAX_VALUE);
}
private static class LockNameGather implements Callable<List<String>>, HazelcastInstanceAware, Serializable
{
transient HazelcastInstance hz;
transient NodeEngineImpl node;
@Override
public List<String> call() throws Exception
{
node = ((HazelcastInstanceImpl) hz).node.getNodeEngine();
LockService svc = node.getService(LockService.SERVICE_NAME);
return svc.getAllLocks()
.stream()
.map(LockResource::getKey)
.map(d -> node.getSerializationService().createObjectDataInput(d))
.map((r) -> {
try
{
return r.readUTF();
} catch (IOException e)
{
throw new RuntimeException(e);
}
}).collect(Collectors.toList());
}
@Override
public void setHazelcastInstance(HazelcastInstance hazelcastInstance)
{
hz = hazelcastInstance;
}
}
}
公共类PlayHZ
{
@试验
public void test()引发ExecutionException、InterruptedException
{
HazelcastInstance hz=Hazelcast.newHazelcastInstance();
IExecutorService executor=hz.getExecutorService(“收集”);
Map futures=executor.submitToAllMembers(新的LockNameGather());
睡眠(1000);
System.out.println(“在成员中找到”);
for(Map.Entry:futures.entrySet())
{
System.out.printf(“%s->%s\n”,entry.getKey(),entry.getValue().get());
}
}
@试验
public void svr()引发InterruptedException
{
HazelcastInstance hz=Hazelcast.newHazelcastInstance();
Thread.sleep(整数.MAX_值);
}
@试验
public void cli()引发InterruptedException
{
HazelcastInstance hz=Hazelcast.newHazelcastInstance();
对于(int i=0;i<100;i++)
{
ILock lock=hz.getLock(“lock”+i);
lock.lock();
}
Thread.sleep(整数.MAX_值);
}
私有静态类LockNameGather实现可调用、HazelCastInstanceWare、可序列化
{
瞬态HazelcastInstance hz;
瞬态节点工程节点;
@凌驾
公共列表调用()引发异常
{
node=((HazelcastInstanceImpl)hz).node.getNodeEngine();
LockService svc=node.getService(LockService.SERVICE\u名称);
返回svc.getAllLocks()
.stream()
.map(LockResource::getKey)
.map(d->node.getSerializationService().createObjectDataInput(d))
.map((r)->{
尝试
{
返回r.readUTF();
}捕获(IOE异常)
{
抛出新的运行时异常(e);
}
}).collect(Collectors.toList());
}
@凌驾
公共无效setHazelcastInstance(HazelcastInstance HazelcastInstance)
{
hz=Hazelcast实例;
}
}
}
那么你的问题与原来的问题有何不同?如果是一样的,我宁愿把这当作一个重复的问题。原来的问题不能回答这个问题,但要求是一样的,所以我应该把答案贴到原来的问题上?你发现了以前的一个问题,你说你的问题和它是一样的,而这个问题已经得到了接受的答案,那为什么那个被接受的答案不能解决你的问题呢?你必须清楚。如果情况是你有另一种方法来解决同样的问题,把它贴在原来的问题上。如果发现您的问题或要求与原来的不同,请在问题中明确说明。因为版本已更改,该问题大约是2年前的问题,答案不再有效。因此我在标题中添加了hazelcast 3.x中的。我该怎么办?然后在你的问题中提到,类似问题中的解决方案在hazelcast 3中不再有效。如果你用公认的答案提及这个问题,而不说明为什么它不起作用,那么你的问题与原文有什么不同呢