Pearl1594 opened a new issue, #10825:
URL: https://github.com/apache/cloudstack/issues/10825
### problem
When attempting to assign / move a VM to another account, it fails with the
following exception:
```
2025-05-07 10:34:32,616 WARN [c.c.u.d.SequenceFetcher]
(SequenceFetcher-25:[]) (logid:) Caught this exception when running:
HikariProxyPreparedStatement@430665016 wrapping
com.mysql.cj.jdbc.ServerPreparedStatement[584]: SELECT mac_address_seq FROM
op_networks WHERE id = 239 FOR UPDATE
com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException: Lock wait
timeout exceeded; try restarting transaction
at
com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:124)
at
com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at
com.mysql.cj.jdbc.ServerPreparedStatement.serverExecute(ServerPreparedStatement.java:555)
at
com.mysql.cj.jdbc.ServerPreparedStatement.executeInternal(ServerPreparedStatement.java:339)
at
com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:972)
at
com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)
at
com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)
at
com.cloud.utils.db.SequenceFetcher$Fetcher.call(SequenceFetcher.java:130)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:840)
2025-05-07 10:34:32,617 WARN [c.c.u.d.SequenceFetcher]
(SequenceFetcher-25:[]) (logid:) Unable to get a sequence:
HikariProxyPreparedStatement@1642184383 wrapping
com.mysql.cj.jdbc.ServerPreparedStatement[585]: UPDATE op_networks SET
mac_address_seq=** NOT SPECIFIED **+1 WHERE id=239
2025-05-07 10:34:32,618 DEBUG [c.c.u.d.T.Transaction]
(SequenceFetcher-25:[]) (logid:) Rolling back the transaction: Time = 600605
Name = Sequence; called by
-TransactionLegacy.rollback:896-TransactionLegacy.removeUpTo:839-TransactionLegacy.close:663-SequenceFetcher$Fetcher.call:160-FutureTask.run:264-ThreadPoolExecutor.runWorker:1136-ThreadPoolExecutor$Worker.run:635-Thread.run:840
2025-05-07 10:34:32,619 DEBUG [c.c.u.d.T.Transaction]
(qtp698741991-20:[ctx-f59193f4, ctx-7a18cbc9]) (logid:c06a70ed) Rolling back
the transaction: Time = 603627 Name = qtp698741991-20; called by
-TransactionLegacy.rollback:896-TransactionLegacy.removeUpTo:839-TransactionLegacy.close:663-Transaction.execute:36-Transaction.execute:45-UserVmManagerImpl.moveVmToUser:7445-NativeMethodAccessorImpl.invoke0:-2-NativeMethodAccessorImpl.invoke:77-DelegatingMethodAccessorImpl.invoke:43-Method.invoke:569-AopUtils.invokeJoinpointUsingReflection:344-ReflectiveMethodInvocation.invokeJoinpoint:198
2025-05-07 10:34:32,623 WARN [o.a.c.m.w.WebhookServiceImpl]
(qtp698741991-20:[ctx-f59193f4, ctx-7a18cbc9]) (logid:c06a70ed) Skipping
delivering event Event {"description":"{\"details\":\"Network Id:
239\",\"event\":\"VM.MOVE\",\"status\":\"Completed\"}","eventId":null,"eventType":"VM.MOVE","eventUuid":null,"resourceType":"VirtualMachine","resourceUUID":null}
to any webhook as account ID is missing
2025-05-07 10:34:32,623 WARN [o.a.c.f.e.EventDistributorImpl]
(qtp698741991-20:[ctx-f59193f4, ctx-7a18cbc9]) (logid:c06a70ed) Failed to
publish event [category: ActionEvent, type: VM.MOVE] on bus webhookEventBus
2025-05-07 10:34:32,641 ERROR [o.a.c.a.c.a.v.AssignVMCmd]
(qtp698741991-20:[ctx-f59193f4, ctx-7a18cbc9]) (logid:c06a70ed) Failed to move
VM [108]. java.lang.NullPointerException: Cannot invoke
"java.lang.Long.longValue()" because the return value of
"com.cloud.utils.db.SequenceFetcher.getNextSequence(java.lang.Class,
javax.persistence.TableGenerator, Object)" is null
at
com.cloud.network.dao.NetworkDaoImpl.getNextAvailableMacAddress(NetworkDaoImpl.java:434)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
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 jdk.proxy3/jdk.proxy3.$Proxy70.getNextAvailableMacAddress(Unknown
Source)
at
com.cloud.network.NetworkModelImpl.getNextAvailableMacAddressInNetwork(NetworkModelImpl.java:602)
at
com.cloud.network.guru.GuestNetworkGuru.allocate(GuestNetworkGuru.java:474)
at
com.cloud.network.guru.ExternalGuestNetworkGuru.allocate(ExternalGuestNetworkGuru.java:281)
at
org.apache.cloudstack.engine.orchestration.NetworkOrchestrator.checkForRaceAndAllocateNic(NetworkOrchestrator.java:1080)
at
org.apache.cloudstack.engine.orchestration.NetworkOrchestrator.allocateNic(NetworkOrchestrator.java:1137)
at
org.apache.cloudstack.engine.orchestration.NetworkOrchestrator.addRequestedNicToNicListWithDeviceNumberAndRetrieveDefaultDevice(NetworkOrchestrator.java:918)
at
org.apache.cloudstack.engine.orchestration.NetworkOrchestrator.allocate(NetworkOrchestrator.java:891)
at
com.cloud.vm.UserVmManagerImpl.allocateNetworksForVm(UserVmManagerImpl.java:7853)
at
com.cloud.vm.UserVmManagerImpl.updateAdvancedTypeNetworkForVm(UserVmManagerImpl.java:7827)
at
com.cloud.vm.UserVmManagerImpl.updateVmNetwork(UserVmManagerImpl.java:7678)
at
com.cloud.vm.UserVmManagerImpl.executeStepsToChangeOwnershipOfVm(UserVmManagerImpl.java:7595)
```
This issue occurs because the createGuestNetwork operation is executed
inside a nested transaction. Since the outer (parent) transaction hasn’t
completed, the network created for the destination account hasn’t been
committed to the database yet. As a result, when the system attempts to fetch
the next MAC address for this new network, it fails with a
NullPointerException, as the network does not yet exist in the database.
### versions
The versions of ACS, hypervisors, storage, network etc..
### The steps to reproduce the bug
1.
2.
3.
...
### What to do about it?
_No response_
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