Chiradeep,
Looks like I have a rookie mistake in S3-backed Secondary Storage. I will
investigate, and send a patch to lock on the management server side.
Thanks,
-John
On Jun 10, 2013, at 1:30 PM, Chiradeep Vittal
wrote:
>
>>
>> From a code perspective, I think it would behove us to imple
>
>From a code perspective, I think it would behove us to implement a more
>functional approach to command execution in order to ensure reference
>counting, error handling, resource management are handled in a consistent
>manner. I implemented such an approach in
>com.cloud.utils.db.GlobalLock#ex
>>>> -Original Message-
>>>> From: John Burwell [mailto:jburw...@basho.com]
>>>> Sent: Wednesday, June 05, 2013 1:04 PM
>>>> To: dev@cloudstack.apache.org
>>>> Subject: Re: [DISCUSS] NFS cache storage issue on object_store
> -Original Message-
> From: John Burwell [mailto:jburw...@basho.com]
> Sent: Thursday, June 06, 2013 7:47 AM
> To: dev@cloudstack.apache.org
> Subject: Re: [DISCUSS] NFS cache storage issue on object_store
>
> Edison,
>
> Please my comments in-line below.
&
>> Subject: Re: [DISCUSS] NFS cache storage issue on object_store
>>
>> Edison,
>>
>> You have provided some great information below which helps greatly to
>> understand the role of the "NFS cache" mechanism. To summarize, this
>> mechanism is
> -Original Message-
> From: John Burwell [mailto:jburw...@basho.com]
> Sent: Wednesday, June 05, 2013 1:06 PM
> To: dev@cloudstack.apache.org
> Subject: Re: [DISCUSS] NFS cache storage issue on object_store
>
> Edison,
>
> One thing I forgot to say is th
> -Original Message-
> From: John Burwell [mailto:jburw...@basho.com]
> Sent: Wednesday, June 05, 2013 1:04 PM
> To: dev@cloudstack.apache.org
> Subject: Re: [DISCUSS] NFS cache storage issue on object_store
>
> Edison,
>
> You have provided some great in
Edison,
One thing I forgot to say is that reference counting be an unnecessary
complexity in the event that sharing of the same resource by multiple process
concurrently is rare.
Thanks,
-John
On Jun 5, 2013, at 4:04 PM, John Burwell wrote:
> Edison,
>
> You have provided some great informa
Edison,
You have provided some great information below which helps greatly to
understand the role of the "NFS cache" mechanism. To summarize, this mechanism
is only currently required for Xen snapshot operations driven by Xen's
coalescing operations. Is my understanding correct? Just out of
Let's start a new thread about NFS cache storage issues on object_store.
First, I'll go through how NFS storage works on master branch, then how it
works on object_store branch, then let's talk about the "issues".
0. Why we need NFS secondary storage? Nfs secondary storage is used as a
pla
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