mimblewimble/grin-miner

Miner does not resume on stratum server restart

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#197 opened on Mar 1, 2019

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Description

The grin-miner should resume mining after it reconnects and gets a job:

Feb 28 17:41:35.030 INFO Share Accepted!!
Feb 28 17:41:37.007 DEBG Received message: {"id":"Stratum","jsonrpc":"2.0","method":"job","params":{"difficulty":1,"height":65308,"job_id":65308000,"pre_pow":"0001000000000000ff1c000000005c788dcf09e71a5aaff00777c01ecb31d0fdf0daa878249fc083e2f53f7337538334e8d040827337cc2edd63d847dbf5b7a11a244f346a9a9f5e63147b894f31fbd6d1548e835a37c128c06551532946f99f9d9ce94be381c9ea029b3707dbc1370a975e8f2b2b5d6c962823ba1ebc7dd682207db36deddea14b1b682896c6b95c07f9d5e4f9c553518297ac5645f41d3249a9641843610e71835f1ea7643f03c93b78460923ca79a3fdcf589220bb674205441a660b58de84b81b44408336d5a2b1d335000000000003b214000000000002bc3d00000003d0237fbd0000000d"}}

Feb 28 17:41:37.007 DEBG Received request type: job
Feb 28 17:41:37.007 INFO Got a new job: JobTemplate { height: 65308, job_id: 65308000, difficulty: 1, pre_pow: "0001000000000000ff1c000000005c788dcf09e71a5aaff00777c01ecb31d0fdf0daa878249fc083e2f53f7337538334e8d040827337cc2edd63d847dbf5b7a11a244f346a9a9f5e63147b894f31fbd6d1548e835a37c128c06551532946f99f9d9ce94be381c9ea029b3707dbc1370a975e8f2b2b5d6c962823ba1ebc7dd682207db36deddea14b1b682896c6b95c07f9d5e4f9c553518297ac5645f41d3249a9641843610e71835f1ea7643f03c93b78460923ca79a3fdcf589220bb674205441a660b58de84b81b44408336d5a2b1d335000000000003b214000000000002bc3d00000003d0237fbd0000000d" }
Feb 28 17:41:37.007 ERRO Error reading message: ConnectionError("broken pipe")
Feb 28 17:41:37.031 WARN Connection Status: Connected to Grin server at stratum.mwfloopool.com:3333.
Feb 28 17:41:37.041 DEBG sending request: {"id":"0","jsonrpc":"2.0","method":"login","params":{"agent":"grin-miner","login":"foobarbaz","pass":""}}
Feb 28 17:41:37.041 DEBG sending request: {"id":"0","jsonrpc":"2.0","method":"getjobtemplate","params":null}
Feb 28 17:41:37.088 DEBG Miner received message: ReceivedJob(65308, 65308000, 1, "0001000000000000ff1c000000005c788dcf09e71a5aaff00777c01ecb31d0fdf0daa878249fc083e2f53f7337538334e8d040827337cc2edd63d847dbf5b7a11a244f346a9a9f5e63147b894f31fbd6d1548e835a37c128c06551532946f99f9d9ce94be381c9ea029b3707dbc1370a975e8f2b2b5d6c962823ba1ebc7dd682207db36deddea14b1b682896c6b95c07f9d5e4f9c553518297ac5645f41d3249a9641843610e71835f1ea7643f03c93b78460923ca79a3fdcf589220bb674205441a660b58de84b81b44408336d5a2b1d335000000000003b214000000000002bc3d00000003d0237fbd0000000d")
Feb 28 17:41:37.088 DEBG Pause message sent
Feb 28 17:41:37.088 DEBG Resume message sent
Feb 28 17:41:37.088 DEBG Miner received message: StopJob
Feb 28 17:41:37.088 DEBG Stopping jobs
Feb 28 17:41:37.088 DEBG Pause message sent
Feb 28 17:41:37.088 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.246261731s; Graphs per second: 4.061 - Total Attempts: 137
Feb 28 17:41:37.088 INFO Mining: Cuck(at)oo at 4.060720258642217 gps (graphs per second)
Feb 28 17:41:37.091 DEBG solver_thread - solver_loop_rx got msg: Pause
Feb 28 17:41:37.092 DEBG solver_thread - solver_loop_rx got msg: Resume
Feb 28 17:41:37.340 DEBG solver_thread - solver_loop_rx got msg: Pause
Feb 28 17:41:39.008 DEBG Received message: {"id":"0","jsonrpc":"2.0","method":"login","result":"ok","error":null}

Feb 28 17:41:39.008 DEBG Received response with id: 0
Feb 28 17:41:39.008 DEBG Received message: {"id":"0","jsonrpc":"2.0","method":"getjobtemplate","result":{"difficulty":1,"height":65308,"job_id":65308000,"pre_pow":"0001000000000000ff1c000000005c788dcf09e71a5aaff00777c01ecb31d0fdf0daa878249fc083e2f53f7337538334e8d040827337cc2edd63d847dbf5b7a11a244f346a9a9f5e63147b894f31fbd6d1548e835a37c128c06551532946f99f9d9ce94be381c9ea029b3707dbc1370a975e8f2b2b5d6c962823ba1ebc7dd682207db36deddea14b1b682896c6b95c07f9d5e4f9c553518297ac5645f41d3249a9641843610e71835f1ea7643f03c93b78460923ca79a3fdcf589220bb674205441a660b58de84b81b44408336d5a2b1d335000000000003b214000000000002bc3d00000003d0237fbd0000000d"},"error":null}

Feb 28 17:41:39.008 DEBG Received response with id: 0
Feb 28 17:41:39.008 INFO Got a job at height 65308 and difficulty 1
Feb 28 17:41:39.089 DEBG Miner received message: ReceivedJob(65308, 65308000, 1, "0001000000000000ff1c000000005c788dcf09e71a5aaff00777c01ecb31d0fdf0daa878249fc083e2f53f7337538334e8d040827337cc2edd63d847dbf5b7a11a244f346a9a9f5e63147b894f31fbd6d1548e835a37c128c06551532946f99f9d9ce94be381c9ea029b3707dbc1370a975e8f2b2b5d6c962823ba1ebc7dd682207db36deddea14b1b682896c6b95c07f9d5e4f9c553518297ac5645f41d3249a9641843610e71835f1ea7643f03c93b78460923ca79a3fdcf589220bb674205441a660b58de84b81b44408336d5a2b1d335000000000003b214000000000002bc3d00000003d0237fbd0000000d")
Feb 28 17:41:40.090 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:41:40.090 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:41:43.093 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:41:43.093 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:41:46.095 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:41:46.095 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:41:49.098 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:41:49.098 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:41:52.000 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:41:52.000 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:41:55.003 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:41:55.003 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:41:58.005 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:41:58.005 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:42:01.007 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.247896016s; Graphs per second: 4.034 - Total Attempts: 139
Feb 28 17:42:01.007 INFO Mining: Cuck(at)oo at 4.03394946048669 gps (graphs per second)
Feb 28 17:42:03.002 DEBG sending request: {"id":"0","jsonrpc":"2.0","method":"status","params":null}
Feb 28 17:42:04.010 DEBG Mining: Plugin 0 - Device 0 (GeForce RTX 2070) at Cuck(at)oo29 - Status: OK : Last Graph time: 0.24789

Contributor guide

Research direction
Trace the Pause and Resume message flow in the miner's connection handler during reconnection. Focus on the logic that handles incoming jobs and StopJob messages after reconnect.
Tech stack
rust
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Rust
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40