No, its explicitly disallowed.
On Feb 27, 2013 6:59 AM, "Wido den Hollander" <w...@widodh.nl> wrote:
> On 02/27/2013 12:45 PM, Sailaja Mada wrote:
>
>> Hi,
>>
>> Out of my curiosity , I tried to resize the volume with shrink option set
>> to true . It failed to resize volume from 20 GB to 10 GB . This is with KVM
>> 6.3 hypervisor. Do we have support this feature with KVM ?
>>
>> 2013-02-27 17:01:55,052 DEBUG [cloud.api.ApiServlet]
>> (catalina-exec-1:null) ===END=== 10.144.7.13 -- GET
>> command=resizeVolume&id=**ff94b87c-973c-4698-9fd2-**
>> 4a1375f5a7c0&shrinkok=true&**diskofferingid=8c61068f-f997-**
>> 48f5-a8ee-dfe8fd3571f2&size=**10&response=json&sessionkey=**
>> Ijl3uimE7kcZYn0P%2FK4AEvh%**2B3fw%3D&_=1361964737075
>> 2013-02-27 17:01:55,054 DEBUG [cloud.async.**AsyncJobManagerImpl]
>> (Job-Executor-66:job-128) Executing org.apache.cloudstack.api.**
>> command.user.volume.**ResizeVolumeCmd for job-128
>> 2013-02-27 17:01:55,078 DEBUG [agent.transport.Request]
>> (Job-Executor-66:job-128) Seq 1-648544436: Sending { Cmd , MgmtId:
>> 55487956346259, via: 1, Ver: v1, Flags: 100011, [{"storage.**
>> ResizeVolumeCommand":{"path":"**d6a5ce3c-ca40-426d-b0bd-**
>> 703567eda58f","pool":{"id":**200,"uuid":"17700ab0-df5a-**
>> 3047-a631-588d93dd749a","host"**:"10.102.192.100","path":"/**
>> cpg_vol/sailaja/asf41kvmps","**port":2049,"type":"**NetworkFilesystem"},"
>> **vmInstance":"none","newSize":**10737418240,"currentSize":**
>> 21474836480,"shrinkOk":true,"**wait":0}}] }
>> 2013-02-27 17:01:55,192 DEBUG [agent.transport.Request]
>> (AgentManager-Handler-10:null) Seq 1-648544436: Processing: { Ans: ,
>> MgmtId: 55487956346259, via: 1, Ver: v1, Flags: 10,
>> [{"storage.ResizeVolumeAnswer"**:{"newSize":0,"result":false,"**details":"Unable
>> to shrink volumes of type QCOW2","wait":0}}] }
>> 2013-02-27 17:01:55,192 DEBUG [agent.transport.Request]
>> (Job-Executor-66:job-128) Seq 1-648544436: Received: { Ans: , MgmtId:
>> 55487956346259, via: 1, Ver: v1, Flags: 10, { ResizeVolumeAnswer } }
>> 2013-02-27 17:01:55,192 DEBUG [cloud.storage.**StorageManagerImpl]
>> (Job-Executor-66:job-128) Resize: returned 'Unable to shrink volumes of
>> type QCOW2'
>> 2013-02-27 17:01:55,201 DEBUG [cloud.async.**AsyncJobManagerImpl]
>> (Job-Executor-66:job-128) Complete async job-128, jobStatus: 2, resultCode:
>> 530, result: Error Code: 530 Error text: Failed to resize volume
>> 2013-02-27 17:01:58,073 DEBUG [cloud.api.ApiServlet]
>> (catalina-exec-17:null) ===START=== 10.144.7.13 -- GET
>> command=queryAsyncJobResult&**jobId=68fdb060-343c-4a64-8ccd-**
>> ce738da07a9b&response=json&**sessionkey=Ijl3uimE7kcZYn0P%**
>> 2FK4AEvh%2B3fw%3D&_=**1361964740184
>> 2013-02-27 17:01:58,081 DEBUG [cloud.async.**AsyncJobManagerImpl]
>> (catalina-exec-17:null) Async job-128 completed
>> 2013-02-27 17:01:58,085 DEBUG [cloud.api.ApiServlet]
>> (catalina-exec-17:null) ===END=== 10.144.7.13 -- GET
>> command=queryAsyncJobResult&**jobId=68fdb060-343c-4a64-8ccd-**
>> ce738da07a9b&response=json&**sessionkey=Ijl3uimE7kcZYn0P%**
>> 2FK4AEvh%2B3fw%3D&_=**1361964740184
>>
>>
>>
> Checking the code I found this in LibvirtComputingResource:
>
> boolean shrinkOk = cmd.getShrinkOk();
>
> } else if (type.equals("QCOW2") && shrinkOk) {
> return new ResizeVolumeAnswer(cmd, false, "Unable to shrink volumes of
> type " + type);
> }
>
> Seems like a logical mistake? Shouldn't that be !shrinkOk?
>
> Wido
>
> Thanks,
>> Sailaja.M
>>
>>
>
