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From Andrija Panic <andrija.pa...@gmail.com>
Subject Re: Create VM prompt SR backend failure
Date Wed, 19 Jun 2019 15:59:36 GMT
Li,

please check the logs on XenServer, they should contain the error message
explaining why volume creation failed.

Best
Andrija

On Wed, 19 Jun 2019 at 17:24, li jerry <div8cn@hotmail.com> wrote:

> Hi, All
>
> I have a cloudstack + xenserver+iscsi cluster with five nodes: node01,
> node02, node03, node04 and node05.
>
> cloudstack version is 4.11.2
> XenServer version is 7.1.2
> Primary storage is iSCSI
>
>
>
> When the newly created VM is assigned to node05, the following errors are
> prompted in the log:
>
> -------------------------------------------------------------------------------------------------------------------
> 2019-06-19 21:57:06,826 DEBUG [c.c.a.t.Request]
> (Work-Job-Executor-28:ctx-f83290e0 job-75093/job-75095 ctx-23f17f03)
> (logid:687a6387) Seq 3-3381640370201
> 826942: Executing:  { Cmd , MgmtId: 240661250348494, via: 3(node05), Ver:
> v1, Flags: 100111,
> [{"org.apache.cloudstack.storage.command.CopyCommand":{"sr
>
> cTO":{"org.apache.cloudstack.storage.to.TemplateObjectTO":{"path":"593bfe3a-a161-4b14-a316-c4f6e17094d8","uuid":"7700a9fc-3906-4b24-859c-3ffa4d9b7860","i
> d":352,"format":"VHD","accountId":2,"hvm":true,"displayText":"yumos
> 20190301","imageDataStore":{"org.apache.cloudstack.storage.to.PrimaryDataStor
>
> eTO":{"uuid":"P01CL01_MIX34","id":61,"poolType":"PreSetup","host":"localhost","path":"/P01CL01_MIX34","port":0,"url":"PreSetup://localhost/P0
>
> 1CL01_MIX34/?ROLE=Primary&STOREUUID=P01CL01_MIX34","isManaged":false}},"name":"1e48f683-ad70-4fe7-bb1e-d5731afd4001","size":53687091200,"hypervisorTy
>
> pe":"XenServer","bootable":false,"uniqueName":"1e48f683-ad70-4fe7-bb1e-d5731afd4001","directDownload":false}},"destTO":{"
> org.apache.cloudstack.storage.to
>
> .VolumeObjectTO":{"uuid":"2cc60f23-f6f5-447d-8120-f9de61bae6f2","volumeType":"ROOT","dataStore":{"org.
> apache.cloudstack.storage.to.PrimaryDataStoreTO":{"
>
> uuid":"P01CL01_MIX34","id":61,"poolType":"PreSetup","host":"localhost","path":"/P01CL01_MIX34","port":0,"url":"PreSetup://localhost/P01CL01_M
>
> IX34/?ROLE=Primary&STOREUUID=P01CL01_MIX34","isManaged":false}},"name":"ROOT-2216","size":53687091200,"volumeId":5333,"vmName":"i-2-2216-VM","account
>
> Id":2,"format":"VHD","provisioningType":"THIN","id":5333,"deviceId":0,"hypervisorType":"XenServer"}},"executeInSequence":true,"options":{},"options2":{},
> "wait":0}}] }
> 2019-06-19 21:57:25,836 WARN  [c.c.h.x.r.XenServerStorageProcessor]
> (DirectAgent-133:ctx-5bfa8d07) (logid:687a6387) Unable to create volume;
> Pool=volumeT
> O[uuid=2cc60f23-f6f5-447d-8120-f9de61bae6f2|path=null|datastore=PrimaryDataStoreTO[uuid=P01CL01_MIX34|name=null|id=61|pooltype=PreSetup]];
> Disk:
> 2019-06-19 21:57:25,836 DEBUG [c.c.a.m.DirectAgentAttache]
> (DirectAgent-133:ctx-5bfa8d07) (logid:687a6387) Seq 3-3381640370201826942:
> Response Received:
> 2019-06-19 21:57:25,836 DEBUG [c.c.a.t.Request]
> (DirectAgent-133:ctx-5bfa8d07) (logid:687a6387) Seq 3-3381640370201826942:
> Processing:  { Ans: , MgmtId:
> 240661250348494, via: 3(node05), Ver: v1, Flags: 110,
> [{"org.apache.cloudstack.storage.command.CopyCmdAnswer":{"result":false,"details":"There
> was an S
> R backend failure.","wait":0}}] }
> 2019-06-19 21:57:25,836 DEBUG [c.c.a.m.AgentAttache]
> (DirectAgent-133:ctx-5bfa8d07) (logid:687a6387) Seq 3-3381640370201826942:
> No more commands found
> 2019-06-19 21:57:25,836 DEBUG [c.c.a.t.Request]
> (Work-Job-Executor-28:ctx-f83290e0 job-75093/job-75095 ctx-23f17f03)
> (logid:687a6387) Seq 3-3381640370201
> 826942: Received:  { Ans: , MgmtId: 240661250348494, via: 3(node05), Ver:
> v1, Flags: 110, { CopyCmdAnswer } }
> 2019-06-19 21:57:25,847 WARN  [o.a.c.s.d.ObjectInDataStoreManagerImpl]
> (Work-Job-Executor-28:ctx-f83290e0 job-75093/job-75095 ctx-23f17f03)
> (logid:687a63
> 87) Unsupported data object (VOLUME,
> org.apache.cloudstack.storage.datastore.PrimaryDataStoreImpl@5d4df229),
> no need to delete from object in store ref t
> able
> 2019-06-19 21:57:25,847 DEBUG [o.a.c.e.o.VolumeOrchestrator]
> (Work-Job-Executor-28:ctx-f83290e0 job-75093/job-75095 ctx-23f17f03)
> (logid:687a6387) Unable
> to create Vol[5333|vm=2216|ROOT]:There was an SR backend failure.
>
> ----------------------------------------------------------------------------------------------------------------------
>
>
> Then the VM will be re-created on the other four nodes.
> VM that has been running normally can be migrated to node 05 through
> cloudstack online migration.
> This problem led to my new VM always being created between node1-4.
> Do you have any suggestions or experiences to share with me?
> Thank you
>


-- 

Andrija Panić

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