[Mining Issue] My worker suddenly sutting down for no reason. For what reason?

[ktg49292]

Describe the problem
Hello! Everyone.
My worker suddenly sutting down for no reason. For what reason?
The logs are stored like this.

Version

Daemon: 1.11.0-dev+mainnet+git.72fc16e8a+api1.0.1
Local: lotus-miner version 1.11.0-dev+mainnet+git.72fc16e8a
lotus-worker version 1.11.0-dev+mainnet+git.72fc16e8a

Setup

You miner and daemon setup, including what hardware do you use, your environment variable settings, how do you run your miner and worker, do you use GPU and etc.

Lotus daemon and miner logs

miner.log

2021-05-17T02:40:50.476+0900 ^[[34mINFO^[[0m blankhost go-libp2p-blankhost@v0.2.0/blank.go:201 protocol negotiation failed {"error": "stream reset"}

worker.log

2021-05-17T02:41:09.659+0900 ^[[33mWARN^[[0m main lotus-seal-worker/main.go:418 Shutting down...
2021-05-17T02:41:09.666+0900 ^[[33mWARN^[[0m main lotus-seal-worker/main.go:422 Graceful shutdown successful
2021-05-17T02:41:09.698+0900 ^[[33mWARN^[[0m main lotus-seal-worker/main.go:97 http: Server closed

[chenjihu]

I have tried v1.8.0 v1.9.0RC5, and the issue is still there. Calibration Net.

[mrbaiwei]

Same issue，1.10.0-rc6+calibnet+git.a641a03，1.11.1-dev，random quit
lotus-seal-worker/main.go:418 Shutting down...

[dayou5168]

Can you try to change your system ulimt value.

[chenjihu]

I found the reason: the hardware (RAM and Motherboard) incompatibility problem. The issue is solved after I replaced the RAM with another brand.

[Araquiel]

how to diagnost it? to proove that is a ram problem?

[Araquiel]

my reason to shuttdown the worker is ssh. run "lotus worker run" with "nohup", but worker dead with ssh session.
fix - run worker from bash script.

[zrlgit]

我也遇到同样的问题，版本一样

[dayou5168]

as far as i know. 100% this kind of question is cause by run lotus with nohup lotus-work run &. and then if you close the terminal. the process will be killed.
you can type exit to quit. or run with systemd or screen instead!