@dinhngtu rpm -qa | grep xapi
xapi-rrd2csv-26.1.19-1.1.xcpng8.3.x86_64
xapi-core-26.1.19-1.1.xcpng8.3.x86_64
xapi-tests-26.1.19-1.1.xcpng8.3.x86_64
python2-xapi-storage-24.19.2-1.10.xcpng8.3.x86_64
xapi-nbd-26.1.19-1.1.xcpng8.3.x86_64
xapi-xe-26.1.19-1.1.xcpng8.3.x86_64
xcp-ng-xapi-plugins-1.17.0-1.xcpng8.3.noarch
xapi-storage-script-26.1.19-1.1.xcpng8.3.x86_64
But now i can't connect to ther server after downgraded the packages and updating from testing.
Oct 3 16:28:15 xcp-ng-akz xapi-init[35439]: Stopping xapi: xapi stopped successfully
Oct 3 16:28:15 xcp-ng-akz systemd[1]: Unit xapi.service entered failed state.
Oct 3 16:28:15 xcp-ng-akz systemd[1]: xapi.service failed.
Oct 3 16:28:16 xcp-ng-akz systemd[1]: xapi.service holdoff time over, scheduling restart.
Oct 3 16:28:16 xcp-ng-akz systemd[1]: Cannot add dependency job for unit lvm2-activation.service, ignoring: Unit is masked.
Oct 3 16:28:16 xcp-ng-akz systemd[1]: Cannot add dependency job for unit lvm2-activation-early.service, ignoring: Unit is masked.
Oct 3 16:28:16 xcp-ng-akz systemd[1]: Starting XenAPI server (XAPI)...
Oct 3 16:28:16 xcp-ng-akz systemd[1]: Started XenAPI server (XAPI).
Oct 3 16:28:16 xcp-ng-akz xapi-init[35451]: Starting xapi:
Oct 3 16:28:17 xcp-ng-akz message-switch[983]: main: [ info|message-switch] Session xapi:34278 cleaning up
Oct 3 16:28:17 xcp-ng-akz xapi-nbd[24597]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.000000 seconds
Oct 3 16:28:19 xcp-ng-akz systemd[1]: xapi.service: main process exited, code=exited, status=2/INVALIDARGUMENT
Oct 3 16:28:19 xcp-ng-akz xapi-init[35588]: Stopping xapi: xapi stopped successfully
Oct 3 16:28:19 xcp-ng-akz systemd[1]: Unit xapi.service entered failed state.
Oct 3 16:28:19 xcp-ng-akz systemd[1]: xapi.service failed.
Oct 3 16:28:20 xcp-ng-akz systemd[1]: xapi.service holdoff time over, scheduling restart.
Oct 3 16:28:20 xcp-ng-akz systemd[1]: Cannot add dependency job for unit lvm2-activation.service, ignoring: Unit is masked.
Oct 3 16:28:20 xcp-ng-akz systemd[1]: Cannot add dependency job for unit lvm2-activation-early.service, ignoring: Unit is masked.
Oct 3 16:28:20 xcp-ng-akz systemd[1]: Starting XenAPI server (XAPI)...
Oct 3 16:28:20 xcp-ng-akz systemd[1]: Started XenAPI server (XAPI).
Oct 3 16:28:20 xcp-ng-akz xapi-init[35600]: Starting xapi: