# RendezvousHandler

Source: https://www.tensorplay.cn/docs/generated/tensorplay.distributed.elastic.rendezvous.RendezvousHandler.html

```python
class tensorplay.distributed.elastic.rendezvous.RendezvousHandler
```

Algorithmic interface of one rendezvous backend.

```python
abstractmethod get_backend() → str
```

Backend name (e.g. static or core).

```python
abstractmethod get_run_id() → str
```

Run identifier of this rendezvous.

```python
abstractmethod is_closed() → bool
```

Whether the rendezvous has been marked closed.

```python
abstractmethod next_rendezvous() → RendezvousInfo
```

Join or re-join the rendezvous; blocks until this round completes.

```python
abstractmethod num_nodes_waiting() → int
```

Number of nodes queued for the next round (pending scale-up).

```python
pre_shutdown() → None
```

Optional hook invoked before [shutdown()](#tensorplay.distributed.elastic.rendezvous.RendezvousHandler.shutdown) during agent teardown.

```python
abstractmethod set_closed() → None
```

Mark the rendezvous closed; new joiners are rejected.

```python
abstractmethod shutdown() → bool
```

Release rendezvous resources; returns True when the backend shut down.

```python
property use_agent_store: bool
```

Whether workers can reuse the agent-held store as their bootstrap store.