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bug: when we use cluster adapter on linux (client A send message to Client B with callback ) #4163

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introspection3 opened this issue Nov 11, 2021 · 2 comments
Closed

bug: when we use cluster adapter on linux (client A send message to Client B with callback ) #4163

introspection3 opened this issue Nov 11, 2021 · 2 comments
Labels
enhancement New feature or request
Milestone
4.5.0

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@introspection3
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Describe the bug
bug: when we use cluster adapter on linux (windows ok) (client A send Client B with callback ),will go wrong
at BroadcastOperator.emit (/opt/fastnat/index.js:162511:19)
at RemoteSocket.emit (/opt/fastnat/index.js:162604:30)
at /opt/fastnat/index.js:729:30
at processTicksAndRejections (node:internal/process/task_queues:96:5)
2021-11-09T21:36:53.490 ERROR default 3944986 :==> Error: Callbacks are not supported when broadcasting
at BroadcastOperator.emit (/opt/fastnat/index.js:162511:19)
at RemoteSocket.emit (/opt/fastnat/index.js:162604:30)
at /opt/fastnat/index.js:729:30
at processTicksAndRejections (node:in
To Reproduce

Please fill the following code example:

Socket.IO server version: x.y.z

"socket.io": "^4.1.3",
"socket.io-client": "^4.1.3",

on server

     socket.on(commandType.P2P_REQUEST_OPEN, async(data, fn) => {
        let targetClientId = data.targetClientId;
        let result = false;
        let info = '';
        let allSockets = await defaultNS.fetchSockets();
        let targetSocket = allSockets.find((value, index, array) => {
            return value.handshake.auth.clientId === targetClientId;
        });

        if (targetSocket != null) {
            result = true;
            logger.trace('start to notify targe socket to open p2p');
            //crash  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
            targetSocket.emit(commandType.P2P_REQUEST_OPEN, data, (ret) => {
                fn(ret);
            });
        } else {
            info = `targetTunnelId's client is not online:targetClientId=` + targetClientId;
            fn({ success: result, data: data, info: info });
        }

    });
@introspection3 introspection3 added the bug Something isn't working label Nov 11, 2021
@introspection3 introspection3 changed the title bug: when we use cluster adapter on linux (client A send Client B with callback ) bug: when we use cluster adapter on linux (client A send message to Client B with callback ) Nov 11, 2021
@darrachequesne
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darrachequesne commented Nov 13, 2021 •
edited

Yes, this is expected.

Related: #1811

darrachequesne added a commit to socketio/socket.io-adapter that referenced this issue Mar 29, 2022
@darrachequesne
feat: broadcast and expect multiple acks
a7f1c90 
Tests will be added in the parent repository.

Related:

- socketio/socket.io#1811
- socketio/socket.io#4163
darrachequesne added a commit that referenced this issue Mar 31, 2022
@darrachequesne
feat: broadcast and expect multiple acks
8b20457 
Syntax:

```js
io.timeout(1000).emit("some-event", (err, responses) => {
  // ...
});
```

The adapter exposes two additional methods:

- `broadcastWithAck(packets, opts, clientCountCallback, ack)`

Similar to `broadcast(packets, opts)`, but:

* `clientCountCallback()` is called with the number of clients that
  received the packet (can be called several times in a cluster)
* `ack()` is called for each client response

- `serverCount()`

It returns the number of Socket.IO servers in the cluster (1 for the
in-memory adapter).

Those two methods will be implemented in the other adapters (Redis,
Postgres, MongoDB, ...).

Related:

- #1811
- #4163
- socketio/socket.io-redis-adapter#445
darrachequesne added a commit to socketio/socket.io-cluster-adapter that referenced this issue Apr 28, 2022
@darrachequesne
feat: broadcast and expect multiple acks
055b784 
This feature was added in `socket.io@4.5.0`:

```js
io.timeout(1000).emit("some-event", (err, responses) => {
  // ...
});
```

Thanks to this change, it will now work with multiple Socket.IO
servers.

Related: socketio/socket.io#4163
@darrachequesne
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This use case is now supported by socket.io@4.5.0 and @socket.io/cluster-adapter@0.2.0. Thanks!

@darrachequesne darrachequesne added enhancement New feature or request and removed bug Something isn't working labels Apr 28, 2022
@darrachequesne darrachequesne added this to the 4.5.0 milestone Apr 28, 2022
dzad pushed a commit to dzad/socket.io that referenced this issue May 29, 2023
@darrachequesne
feat: broadcast and expect multiple acks
734b925 
Syntax:

```js
io.timeout(1000).emit("some-event", (err, responses) => {
  // ...
});
```

The adapter exposes two additional methods:

- `broadcastWithAck(packets, opts, clientCountCallback, ack)`

Similar to `broadcast(packets, opts)`, but:

* `clientCountCallback()` is called with the number of clients that
  received the packet (can be called several times in a cluster)
* `ack()` is called for each client response

- `serverCount()`

It returns the number of Socket.IO servers in the cluster (1 for the
in-memory adapter).

Those two methods will be implemented in the other adapters (Redis,
Postgres, MongoDB, ...).

Related:

- socketio#1811
- socketio#4163
- socketio/socket.io-redis-adapter#445
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@introspection3 @darrachequesne