blocking profile

[so...@ackl.io]

Hello,

I'm using four channles, and some TCP connections.

It works and one point my server does not get the data over tcp connections.rr

Still No fatal error or panic error

I tried here and there. Finally I did blocking profile. I show some data.

I run

$go tool pprof -svg main blockprofile.prof > out.svg

It shows 99.4% it is waiting for runtime.chanrecv1.

I dont know how to interpret those result?  What I have to do for detecting the casue for above problem?

Best regards

Sothy

[Vladimir Varankin]

I believe, "runtime.chanrecv1" is the receiving part of a channel. From what you've described, it sounds like you have a dead-lock somewhere.

In your "out.svg" diagram check what functions are dominating around channel read and check if dead-lock is there.

[sivasothy shanmugalingam]

Thanks, I used one channel that is blocking. I found error and correct it

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[Robert Engels]

Just remember that changing from unbuffered to buffered to make something work may just be hiding the problem and it will surface again in other situations. 

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