Already piped error

[ajayrao80]

Type: Bug
Severity: Low

Description: Occasionally I get already piped error. I have no idea what it is and why it occurs. I thought it has something to do with dialing and tried catching it but I failed.
Can anyone please explain what it is and how to get around it

[jacobheun]

@ajayrao80 do you have a stacktrace of the error? Also, what version of multistream-select do you have locally?

[ajayrao80]

multistream-select version: 0.14.2

Here's the stack trace:

already piped
    at sink (F:\classwork\madnet\node_modules\pull-pair\index.js:11)
    at consume (F:\classwork\madnet\node_modules\pull-defer\sink.js:7)
    at consume (F:\classwork\madnet\node_modules\pull-defer\sink.js:7)
    at Connection.consume (F:\classwork\madnet\node_modules\pull-defer\sink.js:7)
    at pull (F:\classwork\madnet\node_modules\pull-stream\pull.js:43)
    at Dialer.handle (F:\classwork\madnet\node_modules\multistream-select\src\dialer\index.js:47)
    at handleSafe (F:\classwork\madnet\node_modules\libp2p-switch\src\dial.js:51)
    at Dialer._performProtocolHandshake (F:\classwork\madnet\node_modules\libp2p-switch\src\dial.js:445)
    at waterfall (F:\classwork\madnet\node_modules\libp2p-switch\src\dial.js:157)
    at nextTask (F:\classwork\madnet\node_modules\async\waterfall.js:16)

Also, I know why it's happening. Once the node connects with another node, and if one of them goes offline, and when they come back they try to connect again. But because they were connected before it throws an error. Is there any way to handle that? I tried putting the entire dial thing on try catch block, it didn't work.

[jacobheun]

multistream-select@0.14.3 should catch this error. Can you try updating your package lock? I'm working on a release for libp2p-switch to upgrade to 0.14.3 explicitly.

That is good to know! I'm also currently working on making libp2p-switch a full state machine, I will see if I can include a root resolution for this issue there. In the mean time multistream-select@0.14.3 should catch the throw.

[ajayrao80]

Thanks! That worked!!