sureshanaparti opened a new issue, #9033:
URL: https://github.com/apache/cloudstack/issues/9033
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Start VM (with considerlasthost=true) failed with NPE when last host removed
##### ISSUE TYPE
<!-- Pick one below and delete the rest -->
* Bug Report
##### COMPONENT NAME
<!--
Categorize the issue, e.g. API, VR, VPN, UI, etc.
-->
~~~
VM
~~~
##### CLOUDSTACK VERSION
<!--
New line separated list of affected versions, commit ID for issues on main
branch.
-->
~~~
4.18.1.0
~~~
##### CONFIGURATION
<!--
Information about the configuration if relevant, e.g. basic network,
advanced networking, etc. N/A otherwise
-->
Advanced + KVM
##### OS / ENVIRONMENT
<!--
Information about the environment if relevant, N/A otherwise
-->
##### SUMMARY
<!-- Explain the problem/feature briefly -->
Start VM (with considerlasthost=true) fails with NPE when last host removed.
```
2024-05-03 04:29:16,017 DEBUG [c.c.d.DeploymentPlanningManagerImpl]
(API-Job-Executor-35:ctx-9d6f6a8f job-46 ctx-d175b339) (logid:f3db126d) Trying
to allocate a host and storage pools from dc:1, pod:1,cluster:1, requested cpu:
500, requested ram: (512.00 MB) 536870912
2024-05-03 04:29:16,017 DEBUG [c.c.d.DeploymentPlanningManagerImpl]
(API-Job-Executor-35:ctx-9d6f6a8f job-46 ctx-d175b339) (logid:f3db126d) Is ROOT
volume READY (pool already allocated)?: Yes
2024-05-03 04:29:16,024 DEBUG [c.c.d.DeploymentPlanningManagerImpl]
(API-Job-Executor-35:ctx-9d6f6a8f job-46 ctx-d175b339) (logid:f3db126d) Deploy
avoids pods: [], clusters: [], hosts: []
2024-05-03 04:29:16,024 DEBUG [c.c.d.DeploymentPlanningManagerImpl]
(API-Job-Executor-35:ctx-9d6f6a8f job-46 ctx-d175b339) (logid:f3db126d) Deploy
hosts with priorities {} , hosts have NORMAL priority by default
2024-05-03 04:29:16,025 DEBUG [c.c.d.DeploymentPlanningManagerImpl]
(API-Job-Executor-35:ctx-9d6f6a8f job-46 ctx-d175b339) (logid:f3db126d) This VM
has last host_id specified, trying to choose the same host: 3
2024-05-03 04:29:16,034 ERROR [c.c.a.ApiAsyncJobDispatcher]
(API-Job-Executor-35:ctx-9d6f6a8f job-46) (logid:f3db126d) Unexpected exception
while executing org.apache.cloudstack.api.command.admin.vm.StartVMCmdByAdmin
java.lang.NullPointerException
at com.cloud.host.dao.HostDaoImpl.loadHostTags(HostDaoImpl.java:841)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at
com.cloud.utils.db.TransactionContextInterceptor.invoke(TransactionContextInterceptor.java:34)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
at com.sun.proxy.$Proxy82.loadHostTags(Unknown Source)
at
com.cloud.deploy.DeploymentPlanningManagerImpl.planDeployment(DeploymentPlanningManagerImpl.java:418)
at
org.apache.cloudstack.engine.cloud.entity.api.VMEntityManagerImpl.reserveVirtualMachine(VMEntityManagerImpl.java:206)
at
org.apache.cloudstack.engine.cloud.entity.api.VirtualMachineEntityImpl.reserve(VirtualMachineEntityImpl.java:202)
at
com.cloud.vm.UserVmManagerImpl.startVirtualMachine(UserVmManagerImpl.java:5400)
at
com.cloud.vm.UserVmManagerImpl.startVirtualMachine(UserVmManagerImpl.java:5251)
at
com.cloud.vm.UserVmManagerImpl.startVirtualMachine(UserVmManagerImpl.java:3179)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:344)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:198)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at
org.apache.cloudstack.network.contrail.management.EventUtils$EventInterceptor.invoke(EventUtils.java:107)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
at
com.cloud.event.ActionEventInterceptor.invoke(ActionEventInterceptor.java:52)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
at com.sun.proxy.$Proxy185.startVirtualMachine(Unknown Source)
at
org.apache.cloudstack.api.command.user.vm.StartVMCmd.execute(StartVMCmd.java:181)
at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:163)
at
com.cloud.api.ApiAsyncJobDispatcher.runJob(ApiAsyncJobDispatcher.java:112)
at
org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:620)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:48)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:55)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:102)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:52)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:45)
at
org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.run(AsyncJobManagerImpl.java:568)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)
2024-05-03 04:29:16,039 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(API-Job-Executor-35:ctx-9d6f6a8f job-46) (logid:f3db126d) Complete async
job-46, jobStatus: FAILED, resultCode: 530, result:
org.apache.cloudstack.api.response.ExceptionResponse/null/{"uuidList":[],"errorcode":"530"}
```
##### STEPS TO REPRODUCE
<!--
For bugs, show exactly how to reproduce the problem, using a minimal
test-case. Use Screenshots if accurate.
For new features, show how the feature would be used.
-->
- Deploy a VM, say on Host1
- Stop the VM
- Remove Host1
- Start the VM with considerlasthost=true
<!-- Paste example playbooks or commands between quotes below -->
~~~
~~~
<!-- You can also paste gist.github.com links for larger files -->
##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
~~~
VM should start on other available hosts if last host doesn't exists,
otherwise fail appropriately.
~~~
##### ACTUAL RESULTS
<!-- What actually happened? -->
<!-- Paste verbatim command output between quotes below -->
~~~
VM start fails with "Command failed due to Internal Server Error" and NPE
noticed in logs.
~~~
<img width="1177" alt="VMStartIssue"
src="https://github.com/apache/cloudstack/assets/12028987/714b1803-0fb4-4fe5-84d6-93accaf5a93d";>
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