Error after upgrading to Nabox 3.4 and Harvest 23.11

[sinful smelt]

After the update two of the 4 pollers won't work and stay disabled. In the harvest2.log:
3289a7fb9c09_nabox-harvest2 | 2024-01-23T09:17:14Z ERR poller/poller.go:1161 > Failed to negotiateAPI error="connection error => Post "https://NA-FLASH-CLUS:443/servlets/netapp.servlets.admin.XMLrequest_filer\": dial tcp: lookup NA-FLASH-CLUS on 127.0.0.11:53: server misbehaving" Poller=NA-FLASH-CLUS collector=Zapi
3289a7fb9c09_nabox-harvest2 | 2024-01-23T09:17:14Z ERR poller/poller.go:1161 > Failed to negotiateAPI error="connection error => Post "https://NA-FLASH-CLUS:443/servlets/netapp.servlets.admin.XMLrequest_filer\": dial tcp: lookup NA-FLASH-CLUS on 127.0.0.11:53: server misbehaving" Poller=NA-FLASH-CLUS collector=ZapiPerf
3289a7fb9c09_nabox-harvest2 | 2024-01-23T09:17:14Z WRN poller/poller.go:669 > abort collector error="connection error => connection error => Post "https://NA-FLASH-CLUS:443/servlets/netapp.servlets.admin.XMLrequest_filer\": dial tcp: lookup NA-FLASH-CLUS on 127.0.0.11:53: server misbehaving" Poller=NA-FLASH-CLUS collector=Zapi object=SecurityLogin
3289a7fb9c09_nabox-harvest2 | 2024-01-23T09:17:14Z WRN poller/poller.go:306 > no collectors initialized, stopping Poller=NA-FLASH-CLUS
3289a7fb9c09_nabox-harvest2 | 2024-01-23T09:17:14Z INF poller/poller.go:531 > cleaning up and stopping [pid=62] Poller=NA-FLASH-CLUS

Any help??
Thanks!

[warm dragon]

hi @sinful smelt looks like a networking issue - looks like you use a hostname for the cluster in your harvest.yml and nabox is not able to reach that hostname because dns resolution is failing. If you ssh into nabox, are you able to ping na-flash-clus? Perhaps you need to fully qualify the hostname, alternatively you can use it's ip address

[sinful smelt]

Changed the DNS server, that was lost/changed during the upgrade. All solved