[openstack-dev] [nova] about notification in nova

2018-12-02 Thread Rambo
Hi, all: 
 I have a question about the notification in nova, that is the actual  
operator is different from the operator was record  in panko. Such as the 
delete action, we create the VM as user1,  and we delete the VM as user2, but 
the operator is user1 who delete the VM in panko event, not the actual operator 
user2.
 Can you tell me more about this?Thank you very much.

















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Re: [openstack-dev] [glance] about use shared image with each other

2018-11-21 Thread Rambo
yes, but I also have a question, Do we have the quota limit for requests to 
share the image to each other? For example, someone shares the image with me 
without stop, how do we deal with it?
 
-- Original --
From:  "Brian Rosmaita";
Date:  Mon, Nov 19, 2018 10:26 PM
To:  "OpenStack Developmen"; 

Subject:  Re: [openstack-dev] [glance] about use shared image with each other

 
On 11/19/18 7:58 AM, Rambo wrote:
> Hi,all
> 
>  Recently, I want to use the shared image with each other.I find it
> isn't convenient that the producer notifies the consumer via email which
> the image has been shared and what its UUID is. In other words, why the
> image api v2 is no provision for producer-consumer communication?

The design goal for Image API v2 image sharing was to provide an
infrastructure for an "image marketplace" in an OpenStack cloud by (a)
making it easy for cloud end users to share images, and (b) making it
easy for end users not to be spammed by other end users taking advantage
of (a).  When v2 image sharing was introduced in the Grizzly release, we
did not want to dictate how producer-consumer communication would work
(because we had no idea how it would develop), so we left it up to
operators and end users to figure this out.

The advantage of email communication is that client side message
filtering is available for whatever client a particular cloud end-user
employs, and presumably that end-user knows how to manipulate the
filters without learning some new scheme (or, if the end-user doesn't
know, learning how to filter messages will apply beyond just image
sharing, which is a plus).

Also, email communication is just one way to handle producer-consumer
communication.  Some operators have adjusted their web interfaces so
that when an end-user looks at the list of images available, a
notification pops up if the end-user has any images that have been
shared with them and are still in "pending" status.  There are various
other creative things you can do using the normal API calls with regular
user credentials.

In brief, we figured that if an image marketplace evolved in a
particular cloud, producers and consumers would forge their own
relationships in whatever way made the most sense for their particular
use cases.  So we left producer-consumer communication out-of-band.

>   To make it is more convenient,  if we can add a task to change the
> member_status from "pending" to "accepted" when we share the image with
> each other. It is similar to the resize_confirm in Nova, we can control
> the time interval in config.

You could do this, but that would defeat the entire purpose of the
member statuses implementation, and hence I do not recommend it.  See
OSSN-0005 [1] for more about this issue.

Additionally, since the Ocata release, "community" images have been
available.  These do not have to be accepted by an end user (but they
also don't show up in the default image-list response).  Who can
"communitize" an image is governed by policy.

See [2] for a discussion of the various types of image sharing currently
available in the Image API v2.  The Image Service API v2 api-ref [3]
contains a brief discussion of image visibility and image sharing that
may also be useful.  Finally, the Glance Ocata release notes [4] have an
extensive discussion of image visibility.

>Can you tell me more about this?Thank you very much!

The original design page on the wiki [5] has a list of 14 use cases we
wanted to address; looking through those will give you a better idea of
why we made the design choices we did.

Hope this helps!

cheers,
brian

[0]
http://specs.openstack.org/openstack/glance-specs/specs/api/v2/sharing-image-api-v2.html
[1] https://wiki.openstack.org/wiki/OSSN/1226078
[2]
http://specs.openstack.org/openstack/glance-specs/specs/api/v2/sharing-image-api-v2.html
[3] https://developer.openstack.org/api-ref/image/v2/
[4] https://docs.openstack.org/releasenotes/glance/ocata.html
[5] https://wiki.openstack.org/wiki/Glance-api-v2-image-sharing


> 
> Best Regards
> Rambo
> 
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[openstack-dev] [nova] about filter the flavor

2018-11-19 Thread Rambo
Hi,all


  I have an idea.Now we can't filter the special flavor according to the 
property.Can we achieve it?If we achieved this,we can filter the flavor 
according the property's key and value to filter the flavor. What do you think 
of the idea?Can you tell me more about this ?Thank you very much.__
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[openstack-dev] [glance] about use shared image with each other

2018-11-19 Thread Rambo
Hi,all


 Recently, I want to use the shared image with each other.I find it isn't 
convenient that the producer notifies the consumer via email which the image 
has been shared and what its UUID is. In other words, why the image api v2 is 
no provision for producer-consumer communication?
  To make it is more convenient,  if we can add a task to change the 
member_status from "pending" to "accepted" when we share the image with each 
other. It is similar to the resize_confirm in Nova, we can control the time 
interval in config.
   Can you tell me more about this?Thank you very much!


















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Re: [openstack-dev] [Openstack-operators] [nova] about resize the instance

2018-11-08 Thread Rambo
When I resize the instance, the compute node report that "libvirtError: 
internal error: qemu unexpectedly closed the monitor: 
2018-11-08T09:42:04.695681Z qemu-kvm: cannot set up guest memory 'pc.ram': 
Cannot allocate memory".Has anyone seen this situation?And the 
ram_allocation_ratio is set 3 in nova.conf.The total memory is 125G.When I use 
the "nova hypervisor-show server" command to show the compute node's 
free_ram_mb is -45G.If it is the result of excessive use of memory?
Can you give me some suggestions about this?Thank you very much.
-- Original ------
From:  "Rambo";
Date:  Thu, Nov 8, 2018 05:45 PM
To:  "OpenStack Developmen"; 

Subject:  [openstack-dev]  [nova] about resize the instance

 
Hi,all

When we resize/migrate instance, if error occurs on source compute 
node, the instance state can rollback to active currently.But if error occurs 
in "finish_resize" function on destination compute node, the instance state 
would not rollback to active. Is there a bug, or if anyone plans to change 
this?Can you tell me more about this ?Thank you very much.




















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[openstack-dev] [nova] about resize the instance

2018-11-08 Thread Rambo
Hi,all

When we resize/migrate instance, if error occurs on source compute 
node, the instance state can rollback to active currently.But if error occurs 
in "finish_resize" function on destination compute node, the instance state 
would not rollback to active. Is there a bug, or if anyone plans to change 
this?Can you tell me more about this ?Thank you very much.




















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[openstack-dev] [nova] about live-resize the instance

2018-11-04 Thread Rambo
Hi,all


  I find it is important that live-resize the instance in production 
environment. We have talked it many years and we agreed this in Rocky PTG, then 
the author remove the spec to Stein, but there is no information about this 
spec, is there anyone to push the spec and achieve it? Can you tell me more 
about this ?Thank you very much.


[1]https://review.openstack.org/#/c/141219/
















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Re: [openstack-dev] [cinder] about use nfs driver to backup the volume snapshot

2018-11-04 Thread Rambo
Sorry , I mean use the NFS driver as the cinder-backup_driver.I see the 
remotefs code achieve the create_volume_from snapshot[1],in this function the 
snapshot.status must be available. But before this in the api part, the 
snapshot.status was changed to the backing_up status[2].Is there something 
wrong?Can you tell me more about this?Thank you very much.




[1]https://github.com/openstack/cinder/blob/master/cinder/volume/drivers/remotefs.py#L1259
[2]https://github.com/openstack/cinder/blob/master/cinder/backup/api.py#L292
-- Original --
From:  "Eric Harney";
Date:  Fri, Nov 2, 2018 10:00 PM
To:  "jsbryant"; "OpenStack 
Developmen"; 

Subject:  Re: [openstack-dev] [cinder] about use nfs driver to backup the 
volume snapshot

 
On 11/1/18 4:44 PM, Jay Bryant wrote:
> On Thu, Nov 1, 2018, 10:44 AM Rambo  wrote:
> 
>> Hi,all
>>
>>   Recently, I use the nfs driver as the cinder-backup backend, when I
>> use it to backup the volume snapshot, the result is return the
>> NotImplementedError[1].And the nfs.py doesn't has the
>> create_volume_from_snapshot function. Does the community plan to achieve
>> it which is as nfs as the cinder-backup backend?Can you tell me about
>> this?Thank you very much!
>>
>> Rambo,
> 
> The NFS driver doesn't have full snapshot support. I am not sure if that
> function missing was an oversight or not. I would reach out to Eric Harney
> as he implemented that code.
> 
> Jay
> 

create_volume_from_snapshot is implemented in the NFS driver.  It is in 
the remotefs code that the NFS driver inherits from.

But, I'm not sure I understand what's being asked here -- how is this 
related to using NFS as the backup backend?


>>
>>
>> [1]
>> https://github.com/openstack/cinder/blob/master/cinder/volume/driver.py#L2142
>>
>>
>>
>>
>>
>>
>>
>>
>> Best Regards
>> Rambo

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[openstack-dev] [cinder] about use nfs driver to backup the volume snapshot

2018-11-01 Thread Rambo
Hi,all


 Recently, I use the nfs driver as the cinder-backup backend, when I use it 
to backup the volume snapshot, the result is return the 
NotImplementedError[1].And the nfs.py doesn't has the 
create_volume_from_snapshot function. Does the community plan to achieve it 
which is as nfs as the cinder-backup backend?Can you tell me about this?Thank 
you very much!






[1]https://github.com/openstack/cinder/blob/master/cinder/volume/driver.py#L2142
















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[openstack-dev] [docs][cinder] about cinder volume qos

2018-09-10 Thread Rambo
Hi,all


  At first,I find it is supported that we can define hard performance 
limits for each volume in doc.openstack.org[1].But only can define hard 
performance limits for each volume type in fact. Another, the note"As of the 
Nova 18.0.0 Rocky release, front end QoS settings are only supported when using 
the libvirt driver.",in fact, we have supported the front end QoS settings when 
using the libvirt driver previous. Is the document wrong?Can you tell me more 
about this ?Thank you very much.


[1]https://docs.openstack.org/cinder/latest/admin/blockstorage-basic-volume-qos.html
















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[openstack-dev] [Openstack-operators][nova] ask deployment question

2018-08-16 Thread Rambo
Hi,all
   I have some questions about deploy the large scale openstack cloud.Such 
as 
   1.Only in one region situation,How many physical machines are the 
biggest deployment scale in our community? 
   Can you tell me more about these combined with own practice? Would you 
give me some methods to learn it?Such as the website,blog and so on. Thank you 
very much!Looking forward to hearing from you.
















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Re: [openstack-dev] [docs][nova] about update flavor

2018-08-16 Thread Rambo
Sorry,I don't understand what has been removed,the docs about the update the 
flavor's cpu?Otherwise,why we don't consider to add the function that we can 
update the flavor's cpu?
 
 
-- Original --
From: "Zhenyu Zheng"; 
Date: 2018年8月16日(星期四) 下午3:56
To: "OpenStack Developmen"; 
Subject: Re: [openstack-dev] [docs][nova] about update flavor

 
We only allow update flavor descriptions(added in microversion 2.55) in Nova 
and what the horizon did was just delete the old one and create a new one, and 
I think it has been removed in last year.

On Thu, Aug 16, 2018 at 3:19 PM Rambo  wrote:

Hi,all


  I find it is supported that we can update the flavor name, VCPUs, RAM, 
root disk, ephemeral disk and so on in doc.openstack.org[1].But only can change 
the flavor propertity in fact.Is the document wrong?Can you tell me more about 
this ?Thank you very much.


[1]https://docs.openstack.org/horizon/latest/admin/manage-flavors.html
















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Rambo


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[openstack-dev] [docs][nova] about update flavor

2018-08-16 Thread Rambo
Hi,all


  I find it is supported that we can update the flavor name, VCPUs, RAM, 
root disk, ephemeral disk and so on in doc.openstack.org[1].But only can change 
the flavor propertity in fact.Is the document wrong?Can you tell me more about 
this ?Thank you very much.


[1]https://docs.openstack.org/horizon/latest/admin/manage-flavors.html
















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[openstack-dev] [Openstack-operators][nova] deployment question consultation

2018-08-13 Thread Rambo
Hi,all
   I have some questions about deploy the large scale openstack cloud.Such 
as 
   1.Only in one region situation,what will happen in the cloud as 
expansion of cluster size?Then how solve it?If have the limit physical node 
number under the one region situation?How many nodes would be the best in one 
regione?
   2.When to use cellV2 is most suitable in cloud?
   3.How to shorten the time of batch creation of instance?
   Can you tell me more about these combined with own practice? Would you 
give me some methods to learn it?Such as the website,blog and so on. Thank you 
very much!Looking forward to hearing from you.
















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[openstack-dev] [Openstack-operators][nova]about live-resize down the instance

2018-08-13 Thread Rambo
Hi,all


  I find it is important that live-resize the instance in production 
environment,especially live downsize the disk.And we have talked it many 
years.But I don't know why the bp[1] didn't approved.Can you tell me more about 
this ?Thank you very much.


[1]https://review.openstack.org/#/c/141219/
















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[openstack-dev] [nova] about live-resize down the instance

2018-08-13 Thread Rambo
Hi,all


  I find it is important that live-resize the instance in production 
environment,especially live downsize the disk.And we have talked it many 
years.But I don't know why the bp[1] didn't approved.Can you tell me more about 
this ?Thank you very much.


[1]https://review.openstack.org/#/c/141219/
















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[openstack-dev] [cinder] about block device driver

2018-07-24 Thread Rambo
Hi,all


 In the Cinder repository, I noticed that the BlockDeviceDriver driver is 
being deprecated, and was eventually be removed with the Queens release.


https://github.com/openstack/cinder/blob/stable/ocata/cinder/volume/drivers/block_device.py
 


 However,I want to use it out of tree,but I don't know how to use it out of 
tree,Can you share me a doc? Thank you very much!


















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Re: [openstack-dev] [cinder] about block device driver

2018-07-17 Thread Rambo
yes
 
 
-- Original --
From:  "Ivan Kolodyazhny";
Date:  Tue, Jul 17, 2018 05:00 PM
To:  "OpenStack Developmen"; 

Subject:  Re: [openstack-dev] [cinder] about block device driver

 
Do you use the volumes on the same nodes where instances are located?

Regards,
Ivan Kolodyazhny,
http://blog.e0ne.info/



 
On Tue, Jul 17, 2018 at 11:52 AM, Rambo  wrote:
yes,My cinder driver is  LVM+LIO.I have upload the test result in  appendix.Can 
you show me your test results?Thank you!



 
 
-- Original --
From:  "Ivan Kolodyazhny";
Date:  Tue, Jul 17, 2018 04:09 PM
To:  "OpenStack Developmen"; 

Subject:  Re: [openstack-dev] [cinder] about block device driver



 
Rambo,

Did you try to use LVM+LIO target driver? It shows pretty good performance 
comparing to BlockDeviceDriver,


Regards,
Ivan Kolodyazhny,
http://blog.e0ne.info/



 
On Tue, Jul 17, 2018 at 10:24 AM, Rambo  wrote:
Oh,the instances using Cinder perform intense I/O, thus iSCSI or LVM is not a 
viable option - benchmarked them several times, unsatisfactory 
results.Sometimes it's IOPS is twice as bad,could you show me your test 
data?Thank you!





Cheers,
Rambo
 
 
-- Original --
From: "Sean McGinnis"; 
Date: 2018年7月16日(星期一) 晚上9:32
To: "OpenStack Developmen"; 
Subject: Re: [openstack-dev] [cinder] about block device driver

 
On Mon, Jul 16, 2018 at 01:32:26PM +0200, Gorka Eguileor wrote:
> On 16/07, Rambo wrote:
> > Well,in my opinion,the BlockDeviceDriver is more suitable than any other 
> > solution for data processing scenarios.Does the community will agree to 
> > merge the BlockDeviceDriver to the Cinder repository again if our company 
> > hold the maintainer and CI?
> >
> 
> Hi,
> 
> I'm sure the community will be happy to merge the driver back into the
> repository.
> 

The other reason for its removal was its inability to meet the minimum feature
set required for Cinder drivers along with benchmarks showing the LVM and iSCSI
driver could be tweaked to have similar or better performance.

The other option would be to not use Cinder volumes so you just use local
storage on your compute nodes.

Readding the block device driver is not likely an option.

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Re: [openstack-dev] [cinder] about block device driver

2018-07-17 Thread Rambo
yes,My cinder driver is  LVM+LIO.I have upload the test result in  appendix.Can 
you show me your test results?Thank you!



 
 
-- Original --
From:  "Ivan Kolodyazhny";
Date:  Tue, Jul 17, 2018 04:09 PM
To:  "OpenStack Developmen"; 

Subject:  Re: [openstack-dev] [cinder] about block device driver

 
Rambo,

Did you try to use LVM+LIO target driver? It shows pretty good performance 
comparing to BlockDeviceDriver,


Regards,
Ivan Kolodyazhny,
http://blog.e0ne.info/



 
On Tue, Jul 17, 2018 at 10:24 AM, Rambo  wrote:
Oh,the instances using Cinder perform intense I/O, thus iSCSI or LVM is not a 
viable option - benchmarked them several times, unsatisfactory 
results.Sometimes it's IOPS is twice as bad,could you show me your test 
data?Thank you!





Cheers,
Rambo
 
 
-- Original --
From: "Sean McGinnis"; 
Date: 2018年7月16日(星期一) 晚上9:32
To: "OpenStack Developmen"; 
Subject: Re: [openstack-dev] [cinder] about block device driver

 
On Mon, Jul 16, 2018 at 01:32:26PM +0200, Gorka Eguileor wrote:
> On 16/07, Rambo wrote:
> > Well,in my opinion,the BlockDeviceDriver is more suitable than any other 
> > solution for data processing scenarios.Does the community will agree to 
> > merge the BlockDeviceDriver to the Cinder repository again if our company 
> > hold the maintainer and CI?
> >
> 
> Hi,
> 
> I'm sure the community will be happy to merge the driver back into the
> repository.
> 

The other reason for its removal was its inability to meet the minimum feature
set required for Cinder drivers along with benchmarks showing the LVM and iSCSI
driver could be tweaked to have similar or better performance.

The other option would be to not use Cinder volumes so you just use local
storage on your compute nodes.

Readding the block device driver is not likely an option.

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Re: [openstack-dev] [cinder] about block device driver

2018-07-17 Thread Rambo
Oh,the instances using Cinder perform intense I/O, thus iSCSI or LVM is not a 
viable option - benchmarked them several times, unsatisfactory 
results.Sometimes it's IOPS is twice as bad,could you show me your test 
data?Thank you!





Cheers,
Rambo
 
 
-- Original --
From: "Sean McGinnis"; 
Date: 2018年7月16日(星期一) 晚上9:32
To: "OpenStack Developmen"; 
Subject: Re: [openstack-dev] [cinder] about block device driver

 
On Mon, Jul 16, 2018 at 01:32:26PM +0200, Gorka Eguileor wrote:
> On 16/07, Rambo wrote:
> > Well,in my opinion,the BlockDeviceDriver is more suitable than any other 
> > solution for data processing scenarios.Does the community will agree to 
> > merge the BlockDeviceDriver to the Cinder repository again if our company 
> > hold the maintainer and CI?
> >
> 
> Hi,
> 
> I'm sure the community will be happy to merge the driver back into the
> repository.
> 

The other reason for its removal was its inability to meet the minimum feature
set required for Cinder drivers along with benchmarks showing the LVM and iSCSI
driver could be tweaked to have similar or better performance.

The other option would be to not use Cinder volumes so you just use local
storage on your compute nodes.

Readding the block device driver is not likely an option.

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Re: [openstack-dev] [cinder] about block device driver

2018-07-16 Thread Rambo
But I want to create a volume backed server for data processing scenarios,maybe 
the BlockDeviceDriver is more suitable. 
 
-- Original --
From: "Sean McGinnis"; 
Date: 2018年7月16日(星期一) 晚上9:32
To: "OpenStack Developmen"; 
Subject: Re: [openstack-dev] [cinder] about block device driver

 
On Mon, Jul 16, 2018 at 01:32:26PM +0200, Gorka Eguileor wrote:
> On 16/07, Rambo wrote:
> > Well,in my opinion,the BlockDeviceDriver is more suitable than any other 
> > solution for data processing scenarios.Does the community will agree to 
> > merge the BlockDeviceDriver to the Cinder repository again if our company 
> > hold the maintainer and CI?
> >
> 
> Hi,
> 
> I'm sure the community will be happy to merge the driver back into the
> repository.
> 

The other reason for its removal was its inability to meet the minimum feature
set required for Cinder drivers along with benchmarks showing the LVM and iSCSI
driver could be tweaked to have similar or better performance.

The other option would be to not use Cinder volumes so you just use local
storage on your compute nodes.

Readding the block device driver is not likely an option.

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[openstack-dev] 回复:Re: [cinder] about block device driver

2018-07-16 Thread Rambo
ok,thank you

--原始邮件--
发件人:"Gorka Eguileor ";
发送时间:2018年7月16日(星期一) 晚上7:32
收件人:"OpenStack Developmen" ;
主题:Re: [openstack-dev] [cinder] about block device driver
---
On 16/07, Rambo wrote:
> Well,in my opinion,the BlockDeviceDriver is more suitable than any other 
> solution for data processing scenarios.Does the community will agree to merge 
> the BlockDeviceDriver to the Cinder repository again if our company hold the 
> maintainer and CI?
>

Hi,

I'm sure the community will be happy to merge the driver back into the
repository.

Still, I would recommend you looking at the "How To Contribute a driver to
Cinder" guide [1] and the "Third Party CI Requirement Policy"
documentation [2], and then adding this topic to Wednesday's meeting [3]
and go to the meeting to ensure that everybody is on board with it.

Best regards,
Gorka.


[1]: https://wiki.openstack.org/wiki/Cinder/how-to-contribute-a-driver
[2]: https://wiki.openstack.org/wiki/Cinder/tested-3rdParty-drivers
[3]: https://etherpad.openstack.org/p/cinder-rocky-meeting-agendas

>
> -- Original --
> From: "Gorka Eguileor";
> Date: 2018年7月16日(星期一) 下午5:20
> To: "OpenStack Developmen";
> Subject: Re: [openstack-dev] [cinder] about block device driver
>
>
> On 16/07, Rambo wrote:
> > Hi,all
> >
> >
> >  In the Cinder repository, I noticed that the BlockDeviceDriver driver 
> > is being deprecated, and was eventually be removed with the Queens release.
> >
> >
> > https://github.com/openstack/cinder/blob/stable/ocata/cinder/volume/drivers/block_device.py
> >
> >
> > In my use case, the instances using Cinder perform intense I/O, thus iSCSI 
> > or LVM is not a viable option - benchmarked them several times, since Juno, 
> > unsatisfactory results.For data processing scenarios is always better to 
> > use local storage than any SAN/NAS solution.
> >
> >
> > So I felt a great need to know why we deprecated it.If there has any better 
> > one to replace it? What do you suggest to use once BlockDeviceDriver is 
> > removed?Can you tell me about this?Thank you very much!
> >
> > Best Regards
> > Rambo
>
> Hi,
>
> If I remember correctly the driver was deprecated because it had no
> maintainer or CI.  In Cinder we require our drivers to have both,
> otherwise we can't guarantee that they actually work or that anyone will
> fix it if it gets broken.
>
> Cheers,
> Gorka.
>
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Re: [openstack-dev] [cinder] about block device driver

2018-07-16 Thread Rambo
Well,in my opinion,the BlockDeviceDriver is more suitable than any other 
solution for data processing scenarios.Does the community will agree to merge 
the BlockDeviceDriver to the Cinder repository again if our company hold the 
maintainer and CI?
 
 
-- Original --
From: "Gorka Eguileor"; 
Date: 2018年7月16日(星期一) 下午5:20
To: "OpenStack Developmen"; 
Subject: Re: [openstack-dev] [cinder] about block device driver

 
On 16/07, Rambo wrote:
> Hi,all
>
>
>  In the Cinder repository, I noticed that the BlockDeviceDriver driver is 
> being deprecated, and was eventually be removed with the Queens release.
>
>
> https://github.com/openstack/cinder/blob/stable/ocata/cinder/volume/drivers/block_device.py
>
>
> In my use case, the instances using Cinder perform intense I/O, thus iSCSI or 
> LVM is not a viable option - benchmarked them several times, since Juno, 
> unsatisfactory results.For data processing scenarios is always better to use 
> local storage than any SAN/NAS solution.
>
>
> So I felt a great need to know why we deprecated it.If there has any better 
> one to replace it? What do you suggest to use once BlockDeviceDriver is 
> removed?Can you tell me about this?Thank you very much!
>
> Best Regards
> Rambo

Hi,

If I remember correctly the driver was deprecated because it had no
maintainer or CI.  In Cinder we require our drivers to have both,
otherwise we can't guarantee that they actually work or that anyone will
fix it if it gets broken.

Cheers,
Gorka.

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[openstack-dev] [cinder] about block device driver

2018-07-16 Thread Rambo
Hi,all


 In the Cinder repository, I noticed that the BlockDeviceDriver driver is 
being deprecated, and was eventually be removed with the Queens release.


https://github.com/openstack/cinder/blob/stable/ocata/cinder/volume/drivers/block_device.py
 


In my use case, the instances using Cinder perform intense I/O, thus iSCSI or 
LVM is not a viable option - benchmarked them several times, since Juno, 
unsatisfactory results.For data processing scenarios is always better to use 
local storage than any SAN/NAS solution.


So I felt a great need to know why we deprecated it.If there has any better one 
to replace it? What do you suggest to use once BlockDeviceDriver is removed?Can 
you tell me about this?Thank you very much!
















Best Regards
Rambo__
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Re: [openstack-dev] [nova] about filter the flavor

2018-07-06 Thread Rambo
Does the "OSC“ meas the osc placement?
 
 
-- Original --
From:  "Matt Riedemann";
Date:  Mon, Jul 2, 2018 10:36 PM
To:  "OpenStack Developmen"; 

Subject:  Re: [openstack-dev] [nova] about filter the flavor

 
On 7/2/2018 2:43 AM, 李杰 wrote:
> Oh,sorry,not this means,in my opinion,we could filter the flavor in 
> flavor list.such as the cli:openstack flavor list --property key:value.

There is no support for natively filtering flavors by extra specs in the 
compute REST API so that would have to be added with a microversion (if 
we wanted to add that support). So it would require a nova spec, which 
would be reviewed for consideration at the earliest in the Stein 
release. OSC could do client-side filtering if it wanted.

-- 

Thanks,

Matt

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[openstack-dev] [nova] about filter the flavor

2018-07-01 Thread Rambo
Hi,all


  I have an idea.Now we can't filter the special flavor according to the 
property.Can we achieve it?If we achieved this,we can filter the flavor 
according the property's key and value to filter the flavor. What do you think 
of the idea?Can you tell me more about this ?Thank you very much.
















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Rambo__
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