[Kimchi-devel] [PATCH v4] [Kimchi] Storage Volume management

Aline Manera alinefm at linux.vnet.ibm.com
Tue May 24 18:08:25 UTC 2016



On 05/24/2016 12:55 PM, Samuel Henrique De Oliveira Guimaraes wrote:
>
> -----Original Message-----
> From: Aline Manera [mailto:alinefm at linux.vnet.ibm.com]
> Sent: terça-feira, 24 de maio de 2016 11:40
> To: Samuel Henrique De Oliveira Guimaraes <samuel.guimaraes at eldorado.org.br>; sguimaraes943 at gmail.com; Kimchi Devel <kimchi-devel at ovirt.org>
> Subject: Re: [Kimchi-devel] [PATCH v4] [Kimchi] Storage Volume management
>
>
>
> On 05/24/2016 10:27 AM, Samuel Henrique De Oliveira Guimaraes wrote:
>> -----Original Message-----
>> From: kimchi-devel-bounces at ovirt.org
>> [mailto:kimchi-devel-bounces at ovirt.org] On Behalf Of Aline Manera
>> Sent: segunda-feira, 23 de maio de 2016 17:41
>> To: sguimaraes943 at gmail.com; Kimchi Devel <kimchi-devel at ovirt.org>
>> Subject: Re: [Kimchi-devel] [PATCH v4] [Kimchi] Storage Volume
>> management
>>
>> Hi Samuel,
>>
>> Some comments:
>>
>> 1. When I switch to the "Gallery view" I can see all volumes selected
>> and after one second, they are deselected
>>
>> Hi. I tried to reproduce this here but it is working fine. Tested with Firefox and Chrome and watched for DOM changes and after a minute the checkboxes were still selected. Even If I run an asynchronous task in another Storage Pool it won't change the volumes in another Storage Pool.
> I am saying, when you are in the storage volumes list view without any storage volume selected and switch to the gallery view, all the storage volumes appear selected for a second and then the page is refreshed to deselect all them.
>
> Do you mean that black border that appears for a brief second? This is not happening on Chrome but Firefox and IE indeed have this problem. I suspect it is because of the border-color transition to "transparent", as Chrome supports RGBA while Firefox and IE only supports RGB for transitions.

Yeap! It is exactly what I am seeing there.

>> 2. When you select multiple volumes to perform an action, there is no feedback to user that an operation will be done on those selected volumes.
>>        I can select others, deselect the ones I have selected before and so. We should block the volume selected, add a loading icon, for example, and a mark check when the operation is completed.
>>
>> I think my machine is running these tasks too fast so that's why I didn't foresaw this as a requirement. I'll disable the checkboxes and add the spinner icon.
>>
>> 3. Usually we don't use success messages on Wok and its plugins. Any reason to add them now?
>>
>> I've added some to System Services and OVS Bridges there was no feedback to the user pointing a change in the tables or that an action was being performed but with multiple selection sometimes it may render multiple messages in the area so I'll remove them.
>>
>> 4. The message are duplicated. I can see 2 messages when trying to delete multiple items "Volume selected were deleted" + "Volume X was successfully deleted".
>>
>> See above.
>>
>> 5. The same messages for delete operation are shown when I wipe volumes.
>>
>> See above.
>>
>> 6. The wipe operation will change the allocation value and so it must be updated in the volume box.
>>
>> You mean the Storage Pool line in the parent table? Once the wipe process is completed the line is updated with 0.0B in the allocated column, however the parent %Used and Allocated columns are not refreshed. Are these two the only fields that should be updated? Should it be done for Clone and Delete as well?
> I was talking about the storage volume settings. When I do wipe multiple volumes, only one of them get the settings updated.
>
> I've selected five different .qcow files and wiped them. According to chrome the list refreshed 6 times, the last time when the selectedVolumes array is empty. For large files displaying in MB when I wipe them, they immediately turn the "allocated" column to 0.0B but If I choose to wipe a file in KB, the allocation and capacity has the same value:
>
> Before:
>
>    {
>      "allocation":131072,
>      "isvalid":false,
>      "capacity":127314,
>      "name":"0003-WOK-Deleting-unecessary-files-conflicting-with-new-u.patch",
>      "format":"raw",
>      "has_permission":true,
>      "path":"/root/Downloads/0003-WOK-Deleting-unecessary-files-conflicting-with-new-u.patch",
>      "used_by":[],
>      "type":"file"
>    },
>
> After:
>
>    {
>      "allocation":131072,
>      "isvalid":true,
>      "capacity":131072,
>      "name":"0003-WOK-Deleting-unecessary-files-conflicting-with-new-u.patch",
>      "format":"raw",
>      "has_permission":true,
>      "path":"/root/Downloads/0003-WOK-Deleting-unecessary-files-conflicting-with-new-u.patch",
>      "used_by":[],
>      "type":"file"
>    }
>
> They keep the same value for allocation and capacity.
>
> With a large qcow file:
>
> Before:
>
>    {
>      "allocation":1014439936,
>      "isvalid":true,
>      "capacity":8589934592,
>      "name":"2c2f4ef0-7ce0-4aad-b6c8-b891d21fbf40-0.qcow2",
>      "format":"qcow2",
>      "has_permission":true,
>      "path":"/var/lib/libvirt/images/2c2f4ef0-7ce0-4aad-b6c8-b891d21fbf40-0.qcow2",
>      "used_by":[
>        "vm1"
>      ],
>      "type":"file"
>    }
>
> After:
>
>    {
>      "allocation":0,
>      "isvalid":true,
>      "capacity":1014497280,
>      "name":"2c2f4ef0-7ce0-4aad-b6c8-b891d21fbf40-0.qcow2",
>      "format":"raw",
>      "has_permission":true,
>      "path":"/var/lib/libvirt/images/2c2f4ef0-7ce0-4aad-b6c8-b891d21fbf40-0.qcow2",
>      "used_by":[],
>      "type":"file"
>    }
>
> Note that the wiped volume capacity has a little bit more of its previous allocation. Is it correct?
>
> About what you said, I agree we should update the storage pool settings as new volumes or deleting volumes may change the storage pool allocation. I think only %used and allocated must be updated.
>
> Ok, will create a new function to replace the old values.
>
>> 7. The scroll bar should only scroll the volumes. It is hard to get back all time to have the Actions menu available.
>>
>> I'm ok with this for the list view appending a scrollbar on the "table" element but with the Gallery view I think it looks odd. See attached screenshots.
> IMO It is OK for me on both views (list and gallery).
>
> Do you have any other idea to have the same behavior on gallery view which does not look odd as you said?
>
> I was trying to attach the scrollbar on the same position as it is today but this doesn't work well with just CSS, I would have to write some lines in JS to keep this parallax effect. I'll keep the same as the screenshots but with different max-height values for list view and gallery view and the scrollbar attached to the tables.

If you could not find any other solution, I think we can go on how you 
did in the screenshots you sent.

>> I think that is all from my side.
>>
>> Regards,
>> Aline Manera
>>
>> On 05/23/2016 12:46 PM, sguimaraes943 at gmail.com wrote:
>>> From: Samuel Guimarães <sguimaraes943 at gmail.com>
>>>
>>> This patch adds Storage Volume management functions Wipe, Clone, Resize and Delete with multiple selection. It also includes a filter input for each Storage Pool and Gallery View for Storage Volumes.
>>>
>>> Changes from [RFC] version:
>>>
>>> v1:
>>>     - HTML and CSS
>>>
>>> v2:
>>>     - Delete and Wipe with multi-selection
>>>     - Confirm messages with list of selected volumes when wiping or deleting volumes (requires SCSS/CSS patch sent to Wok)
>>>     - Filter working
>>>     - Removed "Add Volume" link from Storage Pool action button
>>>     - Added "Add Volume" to Volume box action button
>>>
>>> v3:
>>>     - Clone function working with multiple selection
>>>     - Progress bar working for clone and create volume
>>>     - Temporary volume added to the volumes when cloning
>>>     - Seamless refresh on the volumes once each task is finished
>>>     - Fixed issue when list wouldn't refresh when all volumes are removed from the storage pool.
>>>
>>> v4:
>>>     - Prevent scroll when Drop-down in volumes list is clicked
>>>     - Dropdown is not clipped from volumes list when there's only one or two items on the list
>>>     - Added Media Queries for small screen resolutions
>>>
>>> Samuel Guimarães (1):
>>>      Storage Volume management
>>>
>>>     model/storagevolumes.py                            |   2 +-
>>>     ui/css/kimchi.css                                  | 369 ++++++++++++++--
>>>     ui/css/src/modules/_storage.scss                   | 347 ++++++++++++---
>>>     ui/js/src/kimchi.api.js                            |  50 +++
>>>     ui/js/src/kimchi.storage_main.js                   | 465 +++++++++++++++++----
>>>     ui/js/src/kimchi.storagepool_add_volume_main.js    |   2 +-
>>>     ui/js/src/kimchi.storagepool_resize_volume_main.js |  59 +++
>>>     ui/pages/i18n.json.tmpl                            |   6 +
>>>     ui/pages/storagepool-resize-volume.html.tmpl       |  51 +++
>>>     ui/pages/tabs/storage.html.tmpl                    | 155 +++----
>>>     10 files changed, 1249 insertions(+), 257 deletions(-)
>>>     create mode 100644 ui/js/src/kimchi.storagepool_resize_volume_main.js
>>>     create mode 100644 ui/pages/storagepool-resize-volume.html.tmpl
>>>
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