Comments (10)
whyrusleeping
commented on July 28, 2024
1
@marco-m They are not, I remember we changed something a while back that fixed it, but can’t remember exactly what it was. @Stebalien do you remember?
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whyrusleeping
commented on July 28, 2024
not much interesting in the stack trace that i can see, but goroutine 1367200 is the one in question:
https://ipfs.io/ipfs/QmVna5MA35uAvyZtrRfKrvX4RnYPYhe14tw7mtxaKuAvkm
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whyrusleeping
commented on July 28, 2024
enabling yamux logging on one node (not the node that has the hang, but the node that it should be talking to) gives this:
2016/05/31 17:05:23 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:05:23 [ERR] yamux: Failed to read stream data: read tcp 192.168.0.6:4001->91.7.2.204:54741: use of closed network connection
2016/05/31 17:05:23 [WARN] yamux: failed to send go away: session shutdown
2016/05/31 17:06:38 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:06:38 [ERR] yamux: Failed to read header: MAC verification failed
2016/05/31 17:06:38 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:08:05 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:08:05 [ERR] yamux: Failed to read header: MAC verification failed
2016/05/31 17:13:24 [ERR] yamux: keepalive failed: session shutdown
2016/05/31 17:14:03 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:14:04 [ERR] yamux: Failed to read stream data: read tcp 192.168.0.6:4001->187.22.60.84:4001: use of closed network connection
2016/05/31 17:16:42 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:16:42 [ERR] yamux: Failed to read stream data: read tcp 192.168.0.6:4001->90.9.46.153:4001: use of closed network connection
2016/05/31 17:16:42 [WARN] yamux: failed to send go away: session shutdown
2016/05/31 17:23:22 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:24:58 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:30:56 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:31:29 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:32:08 [ERR] yamux: keepalive failed: connection write timeout
2016/05/31 17:32:17 [ERR] yamux: Failed to write body: write tcp4 192.168.0.6:55160->52.36.247.108:4001: write: broken pipe
2016/05/31 17:32:49 [ERR] yamux: keepalive failed: i/o deadline reached
2016/05/31 17:35:04 [WARN] yamux: frame for missing stream: Vsn:0 Type:1 Flags:0 StreamID:8 Length:210246
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slackpad
commented on July 28, 2024
Hi @whyrusleeping 2016/05/31 17:06:38 [ERR] yamux: Failed to read header: MAC verification failed is super fishy and makes me think the message framing is getting messed up. Is that always present when you see this?
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whyrusleeping
commented on July 28, 2024
@slackpad its hard to tell, i can only repro unreliably on our gateway machines that have hundreds of connections. Its difficult to tell if thats correlated or not. I did just start seeing some more of the 'frame for missing stream' messages which seem a bit odd to me.
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whyrusleeping
commented on July 28, 2024
sometime last night one of our nodes started accumulating a ton of goroutines stuck in OpenStream, line 153. Heres a stack trace: http://mars.i.ipfs.team:8080/ipfs/QmNbQh1GUCmAF3e9rL5vz9dAEAUiNV531awmJqXmBqf2ca
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marco-m
commented on July 28, 2024
@whyrusleeping are these hangs still happening ?
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Stebalien
commented on July 28, 2024
No idea. However, we've made quite a few improvements that you might want to take a look at in https://github.com/whyrusleeping/yamux/.
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marco-m
commented on July 28, 2024
Thanks @whyrusleeping , @Stebalien :-)
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evanphx
commented on July 28, 2024
Given the age, deployment of yamux, and lack of understanding of the issue I'm going to go ahead and close this.
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