The ping with sn is stopped?

[lurenpluto]

Discussed in #249

^{Originally posted by streetycat May 4, 2023}
I found that my OOD has been offline.

After diagnosis, I found that there is no Ping package to sn, I don't known why the ping is abort.

The gateway has running 6 days, the following log is the earliest that I can find:
gateway_bdt_1727_r00023.log

The following log is the latest:
gateway_bdt_1727_rCURRENT.log

[lurenpluto]

There are several suggestions on how to post logs

1. Since the log itself is relatively large, we suggest using zip compression to upload it, which can also save upload time
2. If it is the log of gateway process, because the log is divided into the main log and bdt log, so even when the bdt module has problems, it should be accompanied by a main log, at least it can see some version-related information, easy to diagnose

Thanks for providing further log to help diagnose @streetycat

[lurenpluto]

Considering the complexity of the SN ping mechanism and network conditions, consider add SN ping alive detection mechanism, similar to the current process stuck detection and task deadlock detection, if the SN ping is not updated for a period of time, then the ping is considered stuck, you can try to restart the gateway to avoid the entire gateway process in a "fake dead" state