[GitHub] [cloudstack] Spaceman1984 commented on a change in pull request #4447: Fixed failed to start instances on Xenserver with dynamic scaling due to default max cpus.

[GitBox <gi...@apache.org>]

Spaceman1984 commented on a change in pull request #4447:
URL: https://github.com/apache/cloudstack/pull/4447#discussion_r518509360



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File path: plugins/hypervisors/xenserver/src/main/java/com/cloud/hypervisor/XenServerGuru.java
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@@ -98,7 +98,12 @@ public VirtualMachineTO implement(VirtualMachineProfile vm) {
         if (userVmVO != null) {
             HostVO host = hostDao.findById(userVmVO.getHostId());
             if (host != null) {
-                to.setVcpuMaxLimit(MaxNumberOfVCPUSPerVM.valueIn(host.getClusterId()));
+                // Max cpu cannot be more than host capability
+                if (host.getCpus() < MaxNumberOfVCPUSPerVM.valueIn(host.getClusterId()))
+                    to.setVcpuMaxLimit(host.getCpus());

Review comment:
       I tested this with a host with 8 CPUs and it failed trying to allocate 16 on XCP-ng 7.6




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