GitHub user arpanbht created a discussion: Cloudstack copy snapshots error
across zones
We are experiencing erros while testing to create volume snapshots across
multiple zones.
We have two separate management servers and created two separate zones and when
we are creating snapshots of the volumes we are selecting both the zones but it
is not creating the snapshot in the 2nd zone, it is creating it only on the
primary zones.
We have two separate nfs servers for both the zones, and when we are manually
copying the snapshot to the 2nd zones it is giving this error
```
failure to copy snapshot ID: 5609 from snapshot chain
2026-08-27 06:35:40,925 WARN [c.c.a.AlertManagerImpl]
(RemoteHostEndPoint-4:[ctx-3c5b75c0]) (logid:3a343310) alertType=[28]
dataCenterId=[4] podId=[null] clusterId=[null] message=[Failed to copy
snapshot: 887bacf5-042e-417a-a2f0-7fa0aaeaac21 with error: Connection refused].
2026-08-27 06:35:40,927 WARN [c.c.a.AlertManagerImpl]
(RemoteHostEndPoint-4:[ctx-3c5b75c0]) (logid:3a343310) No recipients set in
global setting 'alert.email.addresses', skipping sending alert with subject
[Failed to copy snapshot: 887bacf5-042e-417a-a2f0-7fa0aaeaac21 with error:
Connection refused] and content [Failed to copy snapshot:
887bacf5-042e-417a-a2f0-7fa0aaeaac21 with error: Connection refused].
2026-08-27 06:35:40,927 ERROR [o.a.c.s.i.BaseImageStoreDriverImpl]
(RemoteHostEndPoint-4:[ctx-3c5b75c0]) (logid:3a343310) Failed to copy snapshot:
887bacf5-042e-417a-a2f0-7fa0aaeaac21 with error: Connection refused
2026-08-27 06:35:40,934 ERROR [c.c.a.ApiAsyncJobDispatcher]
(API-Job-Executor-84:[ctx-35c4b8f9, job-54912]) (logid:97d5a8af) Unexpected
exception while executing
org.apache.cloudstack.api.command.user.snapshot.CopySnapshotCmd
com.cloud.utils.exception.CloudRuntimeException: Failed to copy snapshot
at
com.cloud.storage.snapshot.SnapshotManagerImpl.copySnapshot(SnapshotManagerImpl.java:2343)
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
org.apache.cloudstack.network.contrail.management.EventUtils$EventInterceptor.invoke(EventUtils.java:109)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
at
com.cloud.event.ActionEventInterceptor.invoke(ActionEventInterceptor.java:52)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
at
org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
at jdk.proxy3/jdk.proxy3.$Proxy245.copySnapshot(Unknown Source)
at
org.apache.cloudstack.api.command.user.snapshot.CopySnapshotCmd.execute(CopySnapshotCmd.java:188)
at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:173)
at
com.cloud.api.ApiAsyncJobDispatcher.runJob(ApiAsyncJobDispatcher.java:110)
at
org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:686)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at
org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at
org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at
org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.run(AsyncJobManagerImpl.java:634)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
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)
2026-08-27 06:35:40,935 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(API-Job-Executor-84:[ctx-35c4b8f9, job-54912]) (logid:97d5a8af) Complete async
job-54912, jobStatus: FAILED, resultCode: 530, result:
org.apache.cloudstack.api.response.ExceptionResponse/null/{"uuidList":[],"errorcode":"530","errortext":"Failed
to copy snapshot"}
2026-08-27 06:35:40,935 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(API-Job-Executor-84:[ctx-35c4b8f9, job-54912]) (logid:97d5a8af) Publish async
job-54912 complete on message bus
2026-08-27 06:35:40,935 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(API-Job-Executor-84:[ctx-35c4b8f9, job-54912]) (logid:97d5a8af) Wake up jobs
related to job-54912
2026-08-27 06:35:40,935 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(API-Job-Executor-84:[ctx-35c4b8f9, job-54912]) (logid:97d5a8af) Update db
status for job-54912
2026-08-27 06:35:40,936 DEBUG [o.a.c.f.j.i.AsyncJobManagerImpl]
(API-Job-Executor-84:[ctx-35c4b8f9, job-54912]) (logid:97d5a8af) Wake up jobs
joined with job-54912 and disjoin all subjobs created from job- 54912
```
And from the image given below we are copying the snapshot across zones
<img width="1281" height="587" alt="image"
src="https://github.com/user-attachments/assets/da700c2d-6ebc-4e0c-967e-3d1623106d52";
/>
Do we need to sync both the nfs in order to do this?
GitHub link: https://github.com/apache/cloudstack/discussions/13986
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