What causes the Distributed.ProcessExitedException(3) error in Julia and how can I resolve it in my Pluto notebook?

Tooling Pluto
,
1

I am encountering the Distributed.ProcessExitedException(3) error in my Julia Pluto notebook. I am not sure what is causing this error or how to resolve it. I have tried updating Julia and the Pluto package, as well as restarting the kernel, but the error persists.

Here is an example of the code that is causing the error:

MLJ.fit!(xgb_regressor, rows=train)

Can anyone help me understand what is causing this error and how I can resolve it? Thank you!

2

That’s not quite what I meant with my earlier response in the other thread. A Distributed.ProcessExitedException just means that there was an error on some worker process, but it doesn’t tell you anything about the error itself. You’ll need to provide a full stacktrace, or even better an MWE version of your notebook for people to give you any useful advice.

3

It could be running out of memory. Does it work if you use much less data (to diagnose)?

1 Like
4

Even if i reduce the data, i am still getting the same error

5

Here is the full stacktrace

Worker 2 terminated.
Unhandled Task ERROR: IOError: read: connection reset by peer (ECONNRESET)
Stacktrace:
[1] wait_readnb(x::Sockets.TCPSocket, nb::Int64)
@ Base .\stream.jl:410
[2] (::Base.var"#wait_locked#680")(s::Sockets.TCPSocket, buf::IOBuffer, nb::Int64)
@ Base .\stream.jl:947
[3] unsafe_read(s::Sockets.TCPSocket, p::Ptr{UInt8}, nb::UInt64)
@ Base .\stream.jl:953
[4] unsafe_read
@ .\io.jl:759 [inlined]
[5] unsafe_read(s::Sockets.TCPSocket, p::Base.RefValue{NTuple{4, Int64}}, n::Int64)
@ Base .\io.jl:758
[6] read!
@ .\io.jl:760 [inlined]
[7] deserialize_hdr_raw
@ C:\Users\martthomas\AppData\Local\Programs\Julia-1.8.5\share\julia\stdlib\v1.8\Distributed\src\messages.jl:167 [inlined]
[8] message_handler_loop(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
@ Distributed C:\Users\martthomas\AppData\Local\Programs\Julia-1.8.5\share\julia\stdlib\v1.8\Distributed\src\process_messages.jl:172
[9] process_tcp_streams(r_stream::Sockets.TCPSocket, w_stream::Sockets.TCPSocket, incoming::Bool)
@ Distributed C:\Users\martthomas\AppData\Local\Programs\Julia-1.8.5\share\julia\stdlib\v1.8\Distributed\src\process_messages.jl:133
[10] (::Distributed.var"#103#104"{Sockets.TCPSocket, Sockets.TCPSocket, Bool})()
@ Distributed .\task.jl:484