weizhouapache commented on a change in pull request #5658:
URL: https://github.com/apache/cloudstack/pull/5658#discussion_r777888980



##########
File path: 
engine/orchestration/src/main/java/com/cloud/vm/VirtualMachineManagerImpl.java
##########
@@ -5631,35 +5640,72 @@ private void 
checkConcurrentJobsPerDatastoreThreshhold(final StoragePool destPoo
 
         final List<VmWorkJobVO> pendingWorkJobs = 
_workJobDao.listPendingWorkJobs(
                 VirtualMachine.Type.Instance, vm.getId(),
-                VmWorkAddVmToNetwork.class.getName());
+                VmWorkAddVmToNetwork.class.getName(), network.getUuid());
 
         VmWorkJobVO workJob = null;
         if (pendingWorkJobs != null && pendingWorkJobs.size() > 0) {
-            assert pendingWorkJobs.size() == 1;
+            if (pendingWorkJobs.size() > 1) {
+                s_logger.warn(String.format("The number of jobs to add network 
%s to vm %s are %d", network.getUuid(), vm.getInstanceName(), 
pendingWorkJobs.size()));
+            }
             workJob = pendingWorkJobs.get(0);
         } else {
+            if (s_logger.isTraceEnabled()) {
+                s_logger.trace(String.format("no jobs to add network %s for vm 
%s yet", network, vm));
+            }
 
-            workJob = new VmWorkJobVO(context.getContextId());
+            workJob = createVmWorkJobToAddNetwork(vm, network, requested, 
context, user, account);
+        }
+        
AsyncJobExecutionContext.getCurrentExecutionContext().joinJob(workJob.getId());
 
-            workJob.setDispatcher(VmWorkConstants.VM_WORK_JOB_DISPATCHER);
-            workJob.setCmd(VmWorkAddVmToNetwork.class.getName());
+        if (s_logger.isTraceEnabled()) {
+            s_logger.trace(String.format("job %s to add network %s for vm %s 
processed", workJob.toString(), network, vm));
+        }
+        if (workJob.getStep() == VmWorkJobVO.Step.Done ||
+            workJob.getStep() == VmWorkJobVO.Step.Error ||
+            workJob.getStep() == VmWorkJobVO.Step.Release) {
+            _workJobDao.expunge(workJob.getId());
+        }

Review comment:
       @DaanHoogland 
   this PR lists pending work jobs by vm id and also network uuid.
   If you add multiple networks to a vm, cloudstack will create work jobs for 
all of them, and process the jobs.




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