Server can no longer connect after crash

grapesmc

After an ungraceful shutdown, server can no longer connect. I have removed and re-added under settings\servers, and it will add but then time out. Server still connects fine to XCP-ng Center (thank goodness).

This is all I'm seeing in /var/log/syslog:

Feb 22 08:26:29 sophie xo-server[476]: 2021-02-22T16:26:29.141Z xo:main INFO - WebSocket connection (::ffff:10.0.255.189)
Feb 22 08:26:29 sophie xo-server[476]: 2021-02-22T16:26:29.491Z xo:main INFO + WebSocket connection (::ffff:10.0.255.189)

Update. Also seeing a lot of these:

eb 22 09:15:34 sophie xo-server[476]: 2021-02-22T17:15:34.771Z xo:api WARN grapesmc | pool.listMissingPatches(...) [3ms] =!> XoError: no such host 9c6be57a-8b1e-4253-8bb9-548090c5fd33
Feb 22 09:15:40 sophie xo-server[476]: 2021-02-22T17:15:40.772Z xo:api WARN grapesmc | pool.listMissingPatches(...) [4ms] =!> XoError: no such host 9c6be57a-8b1e-4253-8bb9-548090c5fd33
Feb 22 09:15:46 sophie xo-server[476]: 2021-02-22T17:15:46.771Z xo:api WARN grapesmc | pool.listMissingPatches(...) [3ms] =!> XoError: no such host 9c6be57a-8b1e-4253-8bb9-548090c5fd33
Feb 22 09:15:52 sophie xo-server[476]: 2021-02-22T17:15:52.766Z xo:api WARN grapesmc | pool.listMissingPatches(...) [4ms] =!> XoError: no such host 9c6be57a-8b1e-4253-8bb9-548090c5fd33

That UUID being referenced is the server that will no longer connect.

olivierlambert

Hi!

Can you be more specific? Is it a host inside a pool with other hosts? Or just a single host?

grapesmc

@olivierlambert Hi. Thanks for replying.

Single host.

In the screenshot, it's the host called Kipp. I can add it, but then it times out and says it connection failed.

Screenshot 2021-02-22 08.32.53.png

olivierlambert

Then you need to connect in SSH on that host, and check the usual logs https://xcp-ng.org/docs/troubleshooting.html

grapesmc

@olivierlambert FYI turned out to be a networking issue that had nothing to do with the server itself. I'm still getting to the bottom of what exactly the cause was, and will update here once I do just in case someone else runs into this. Thanks again. And thanks for the awesome software. ! -Rob