Open Stack

I used to submit a patch and retrieve the reservation of quota, got a -2
because it can expire :)

so, I guess expire do no harm unless the uncommitted / unrollbacked
reservation may occupy the quota
and lead to side effect on upcoming actions...

Best Regards!

Kevin (Chen) Ji 纪 晨

Engineer, zVM Development, CSTL
Notes: Chen CH Ji/China/IBM at IBMCN   Internet: jichenjc at cn.ibm.com
Phone: +86-10-82454158
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District,
Beijing 100193, PRC



From:	Eli Qiao <taget at linux.vnet.ibm.com>
To:	"OpenStack Development Mailing List (not for usage questions)"
            <openstack-dev at lists.openstack.org>
Date:	12/22/2014 11:37 AM
Subject:	Re: [openstack-dev] [nova][resend with correct subject prefix]
            ask for usage of quota reserve




在 2014年12月18日 17:33, Chen CH Ji 写道:


      AFAIK, quota will expire in 24 hours

      cfg.IntOpt('reservation_expire',
                     default=86400,
                     help='Number of seconds until a reservation expires'),

      Best Regards!


hi Kevin,
but that is not reliable,  user/op can change the default value.
shall we just leave as the quota reservation there can do not
commit/rollback ?
I don't think there will be much more we can do.



      Kevin (Chen) Ji 纪 晨

      Engineer, zVM Development, CSTL
      Notes: Chen CH Ji/China/IBM at IBMCN   Internet: jichenjc at cn.ibm.com
      Phone: +86-10-82454158
      Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian
      District, Beijing 100193, PRC

      Inactive hide details for "Eli Qiao(Li Yong
          Qiao)"
      ---12/18/2014 04:34:32 PM---hi all, can anyone
          tell if we
      call quotas.reserv"Eli Qiao(Li Yong Qiao)" ---12/18/2014 04:34:32
      PM---hi all, can anyone tell if we call quotas.reserve() but never
      call

      From: "Eli Qiao(Li Yong Qiao)" <taget at linux.vnet.ibm.com>
      To: "OpenStack Development Mailing List (not for usage questions)"
      <openstack-dev at lists.openstack.org>
      Date: 12/18/2014 04:34 PM
      Subject: [openstack-dev] [nova][resend with correct subject prefix]
      ask for usage of quota reserve





      hi all,
      can anyone tell if we call quotas.reserve() but never call
      quotas.commit() or quotas.rollback().
      what will happen?

      for example:
            1. when doing resize, we call quotas.reserve() to reservea a
            delta quota.(new_flavor - old_flavor)
            2. for some reasons, nova-compute crashed, and not chance to
            call quotas.commit() or quotas.rollback() (called by
            finish_resize in nova/compute/manager.py)
            3. next time restart nova-compute server, is the delta quota
            still reserved , or do we need any other operation on quotas?

      Thanks in advance
      -Eli.


      ps: this is related to patch : Handle RESIZE_PREP status when nova
      compute do init_instance(https://review.openstack.org/#/c/132827/)


      --
      Thanks Eli Qiao(qiaoly at cn.ibm.com)
      _______________________________________________
      OpenStack-dev mailing list
      OpenStack-dev at lists.openstack.org
      http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev






      _______________________________________________
      OpenStack-dev mailing list
      OpenStack-dev at lists.openstack.org
      http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev


--
Thanks,
Eli (Li Yong) Qiao_______________________________________________
OpenStack-dev mailing list
OpenStack-dev at lists.openstack.org
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20141222/c21d327c/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: graycol.gif
Type: image/gif
Size: 105 bytes
Desc: not available
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20141222/c21d327c/attachment.gif>