NPE during host rolling maintenance when host has tag and service offering doesn't have host tag

[sureshanaparti]

NPE during host rolling maintenance when host has tag and service offering doesn't have host tag.

ISSUE TYPE

• Bug Report

COMPONENT NAME

Host

CLOUDSTACK VERSION

4.19.1.2

OS / ENVIRONMENT

MS + KVM Hosts (OL8)

SUMMARY

NPE after start rolling maintenance when host has tag and service offering doesn't have host tag. Other host(s) in cluster has tag.

STEPS TO REPRODUCE

• Set host tag to host, say Host1
• Set host tag to any other host, say Host2, in the same cluster as Host1
• Create VM on the Host1, using service offering with no host tag
• Start rolling maintenance on Host1

Logs:

2024-10-22 05:40:25,689 INFO  [o.a.c.f.j.i.AsyncJobMonitor] (API-Job-Executor-32:ctx-6b9edab0 job-41) (logid:c9c074cb) Add job-41 into job monitoring
2024-10-22 05:40:25,691 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl] (qtp660017404-20:ctx-f60bd7f6 ctx-8a09649a) (logid:2c81de00) submit async job-41, details: AsyncJobVO: {id:41, userId: 2, accountId: 2, instanceType: Host, instanceId: 2, cmd: org.apache.cloudstack.api.command.admin.resource.StartRollingMaintenanceCmd, cmdInfo: {"response":"json","ctxUserId":"2","sessionkey":"5KjTYbzLXZBM2G0YP4VX1m0ImKo","httpmethod":"GET","ctxStartEventId":"115","hostids":"00016127-58a3-4cd4-95e6-f7279db0574c","ctxDetails":"{\"interface com.cloud.host.Host\":\"00016127-58a3-4cd4-95e6-f7279db0574c\"}","ctxAccountId":"2","cmdEventType":"HOST.ROLLING.MAINTENANCE"}, cmdVersion: 0, status: IN_PROGRESS, processStatus: 0, resultCode: 0, result: null, initMsid: 32989593469185, completeMsid: null, lastUpdated: null, lastPolled: null, created: null, removed: null}
2024-10-22 05:40:25,693 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl] (API-Job-Executor-32:ctx-6b9edab0 job-41) (logid:2df29f6c) Executing AsyncJobVO: {id:41, userId: 2, accountId: 2, instanceType: Host, instanceId: 2, cmd: org.apache.cloudstack.api.command.admin.resource.StartRollingMaintenanceCmd, cmdInfo: {"response":"json","ctxUserId":"2","sessionkey":"5KjTYbzLXZBM2G0YP4VX1m0ImKo","httpmethod":"GET","ctxStartEventId":"115","hostids":"00016127-58a3-4cd4-95e6-f7279db0574c","ctxDetails":"{\"interface com.cloud.host.Host\":\"00016127-58a3-4cd4-95e6-f7279db0574c\"}","ctxAccountId":"2","cmdEventType":"HOST.ROLLING.MAINTENANCE"}, cmdVersion: 0, status: IN_PROGRESS, processStatus: 0, resultCode: 0, result: null, initMsid: 32989593469185, completeMsid: null, lastUpdated: null, lastPolled: null, created: null, removed: null}
2024-10-22 05:40:25,695 DEBUG [c.c.a.ApiServlet] (qtp660017404-20:ctx-f60bd7f6 ctx-8a09649a) (logid:2c81de00) ===END===  10.0.3.251 -- GET  hostids=00016127-58a3-4cd4-95e6-f7279db0574c&command=startRollingMaintenance&response=json&sessionkey=5KjTYbzLXZBM2G0YP4VX1m0ImKo
2024-10-22 05:40:25,709 DEBUG [c.c.r.RollingMaintenanceManagerImpl] (API-Job-Executor-32:ctx-6b9edab0 job-41 ctx-d4ae806d) (logid:2df29f6c) State checks on the hosts in the cluster
2024-10-22 05:40:25,709 DEBUG [c.c.r.RollingMaintenanceManagerImpl] (API-Job-Executor-32:ctx-6b9edab0 job-41 ctx-d4ae806d) (logid:2df29f6c) Checking hosts capacity before attempting rolling maintenance
2024-10-22 05:40:25,733 ERROR [c.c.a.ApiAsyncJobDispatcher] (API-Job-Executor-32:ctx-6b9edab0 job-41) (logid:2df29f6c) Unexpected exception while executing org.apache.cloudstack.api.command.admin.resource.StartRollingMaintenanceCmd
java.lang.NullPointerException
	at com.cloud.resource.RollingMaintenanceManagerImpl.lambda$checkHostTags$1(RollingMaintenanceManagerImpl.java:679)
	at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90)
	at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1632)
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127)
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502)
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
	at java.base/java.util.stream.MatchOps$MatchTask.doLeaf(MatchOps.java:306)
	at java.base/java.util.stream.MatchOps$MatchTask.doLeaf(MatchOps.java:277)
	at java.base/java.util.stream.AbstractShortCircuitTask.compute(AbstractShortCircuitTask.java:115)
	at java.base/java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:746)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
	at java.base/java.util.concurrent.ForkJoinTask.doInvoke(ForkJoinTask.java:408)
	at java.base/java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:736)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateParallel(MatchOps.java:242)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateParallel(MatchOps.java:196)
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)
	at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528)
	at com.cloud.resource.RollingMaintenanceManagerImpl.checkHostTags(RollingMaintenanceManagerImpl.java:679)
	at com.cloud.resource.RollingMaintenanceManagerImpl.performCapacityChecksBeforeHostInMaintenance(RollingMaintenanceManagerImpl.java:626)
	at com.cloud.resource.RollingMaintenanceManagerImpl.performCapacityChecks(RollingMaintenanceManagerImpl.java:593)
	at com.cloud.resource.RollingMaintenanceManagerImpl.startRollingMaintenance(RollingMaintenanceManagerImpl.java:200)
	at org.apache.cloudstack.api.command.admin.resource.StartRollingMaintenanceCmd.execute(StartRollingMaintenanceCmd.java:131)
	at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:172)
	at com.cloud.api.ApiAsyncJobDispatcher.runJob(ApiAsyncJobDispatcher.java:112)
	at org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:654)
	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$5.run(AsyncJobManagerImpl.java:602)
	at java.base/java.util.concurrent.Executors$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)
2024-10-22 05:40:25,738 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl] (API-Job-Executor-32:ctx-6b9edab0 job-41) (logid:2df29f6c) Complete async job-41, jobStatus: FAILED, resultCode: 530, result: org.apache.cloudstack.api.response.ExceptionResponse/null/{"uuidList":[],"errorcode":"530"}

EXPECTED RESULTS

Rolling maintenance of host should be performed without any issues.

ACTUAL RESULTS

Rolling maintenance of host fails with error.