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how often is "Stratum connection interrupted" #18

bmatusiak opened this Issue · 32 comments

4 participants


im getting

debug: [client] Client 'workername' disconnected!

on my workers ... is anybody else experiencing this?


on the miner side it says

Stratum connection timed out
Stratum connection interrupted

i have tested this on multi machines , with same effect


hello @bmatusiak what is the coin you're testing?


Can you provide more information? Are any valid shares being processed at all? What percent of miners get disconnected from this? What miner software are you using?

@zone117x zone117x closed this
@zone117x zone117x reopened this

First thing you should do is update to latest code because there is a good chance the issue has been fixed. Your config indicates old version :)


yea i found shares, i found a block, i updated my gist with log file


i git cloned yeaterday


o i must had a older clone

when i updated i get this error

TypeError: Object.keys called on non-object
    at Function.keys (native)
    at new varDiff (/home/bmatusiak/rubycoin/stratum/node-stratum2/lib/varDiff.js:51:12)
    at SetupVarDiff (/home/bmatusiak/rubycoin/stratum/node-stratum2/lib/pool.js:72:25)
    at pool.start (/home/bmatusiak/rubycoin/stratum/node-stratum2/lib/pool.js:41:9)
    at Object.<anonymous> (/home/bmatusiak/rubycoin/stratum/stratum.js:110:6)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)

You have an old config, look at the example config in the readme.


k i updated to latest, i am gonna close this for now

@bmatusiak bmatusiak closed this

Also its easier to help you when you answer my debug questions :)

"Can you provide more information? Are any valid shares being processed at all? What percent of miners get disconnected from this? What miner software are you using?"

cgminer? I just committed an update to the stratum subscription reply which I think may fix your issue.


im using 3 "minerd" and 1 "cgminer"

both are giving the interupted connection

minerd just sent this on latest

Stratum connection timed out
Stratum connection interrupted

its cant to find the version i have for minerd... but it has always worked for stratum mining

@bmatusiak bmatusiak reopened this

If you could get a wireshark trace of the tcp packets between miner and server then we can very likely fix this problem. It looks like somehow the server isn't acknowledging some message from the miner.


running wireshark now...

what expression did you want me to use?

atm im using expression tcp.dstport == 3335

3335 is the port stratum is listening on,, and im running wireshark on the machine with minerd


this is new

C:\Users\bmatusiak\Desktop\minerd>minerd.exe --url stratum+tcp:// --user bmatusiak.1 -p 1 -t 3 --quie
[2014-03-06 18:27:26] Starting Stratum on stratum+tcp://
[2014-03-06 18:27:26] 3 miner threads started, using 'scrypt' algorithm.
[2014-03-06 18:29:12] accepted: 1/1 (100.00%), 11.17 khash/s (yay!!!)
[2014-03-06 18:29:37] Stratum detected new block
[2014-03-06 18:29:54] accepted: 2/2 (100.00%), 11.12 khash/s (yay!!!)
[2014-03-06 18:31:18] accepted: 3/3 (100.00%), 11.21 khash/s (yay!!!)
[2014-03-06 18:32:28] Stratum detected new block
[2014-03-06 18:33:59] accepted: 4/4 (100.00%), 11.26 khash/s (yay!!!)
[2014-03-06 18:35:14] accepted: 5/5 (100.00%), 11.31 khash/s (yay!!!)
[2014-03-06 18:36:08] Stratum detected new block
[2014-03-06 18:36:25] accepted: 6/6 (100.00%), 11.40 khash/s (yay!!!)
[2014-03-06 18:37:27] accepted: 7/7 (100.00%), 11.30 khash/s (yay!!!)
[2014-03-06 18:37:46] accepted: 8/8 (100.00%), 11.31 khash/s (yay!!!)
[2014-03-06 18:38:01] Stratum detected new block
[2014-03-06 18:38:26] accepted: 9/9 (100.00%), 11.17 khash/s (yay!!!)
[2014-03-06 18:38:55] accepted: 10/10 (100.00%), 11.18 khash/s (yay!!!)
[2014-03-06 18:39:21] accepted: 11/11 (100.00%), 11.30 khash/s (yay!!!)
[2014-03-06 18:41:22] Stratum connection timed out
[2014-03-06 18:41:22] Stratum connection interrupted
[2014-03-06 18:42:57] accepted: 12/12 (100.00%), 11.27 khash/s (yay!!!)
[2014-03-06 18:43:14] accepted: 13/13 (100.00%), 11.27 khash/s (yay!!!)
[2014-03-06 18:46:14] stratum_recv_line failed
[2014-03-06 18:46:14] Stratum connection interrupted

ahh, ok im now following tcp stream raw data


is this what your looking for on wireshark?


Can you update to the latest code again? I added data to the subscription response that may fix the issue. I see in the tcp log that its not using latest fix I did f43a583


If the problem still happens with my latest code, TheSeven (who is really good at fixing these types of things) says: "I'd suggest the tester to filter for your IP address ("ip.addr eq") and then export the visible packets to a capture file and attach that to the issue"


What's your connectionTimeout set to? Make it something really high like over 9000 because that could be causing your disconnect.


so i set the timeout verry high "900000", still had a disconnect, it seems miner is causing the timeout after 120 sec of not sending any shares, i set the diff lower on pool and miner send more shares, but once it gets to a heavy share it still gets killed after the 120 sec


[3:55:39 AM] TheSeven: the wireshark trace doesn't seem to be complete, it stops in the middle of frame 5187
[3:55:51 AM] TheSeven: up to that point there's no trace of the connectiong being closed by either side
[3:58:02 AM] TheSeven: nothing unusual at all in that trace
[3:58:35 AM] TheSeven: so either the trace stops before the problem occurred, or the problem is that the miner spuriously thinks that the connection was closed or something
[3:58:45 AM] TheSeven: the first of which seems more likely


i think the miner is just closing the connection on a heavy share, i see in the mimerd logs that it closes exactly 2 minits after previous share


what irc channel are you on?


TheSeven was helping over a skype private convo. Although I just created two irc channels for discussion on freenode, #nomp & #nomp-dev


i found this

i didnt see if node-stratum is doing this or not yet, and is mabe causing my issue



This should fix the issue. Please verify


i get the same error
debug: [ client] Client 'undefined' disconnected!

and the last fix does not fix it


yes thanks!

@bmatusiak bmatusiak closed this
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