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[Launchpad Bug Tracker <1711553@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1711553

Title:
  DB Error "Too many connections" while modifying instances filter on
  page /project/instances

Status in OpenStack Compute (nova):
  Expired

Bug description:
  Description
  ===========
  Recoverable error: Unexpected API Error.
  <class 'sqlalchemy.exc.OperationalError'> (HTTP 500) (Request-ID: req-99afec9c-b02f-4a64-b718-0109b1836743)

  Steps to reproduce
  ==================
  1. launch 250+ CirrOSes with flavor cirros64 (same as cirros256 but with 64M ram)
  2.navigate to /project/instances in horizon
  3. select instance name and write a proper prefix having '0' in it the press filter.

  Expected result
  ===============
  Instance list

  Actual result
  =============
  Error: Unable to retrieve instances
  The following appeared in devstack nova log: http://paste.openstack.org/raw/618749/

  Environment
  ===========
  I'm using devstack fc2919f the setup is running on a  Dell T7810 and has 251 instances launched and running.
  Hypervisor: libvirt+kvm
  Storage: LVM shipped with devstack
  networking: Neutron with OpenVSwitch

  
  Logs & Configs
  ==============
  base64 encoded  sosreport-trunkport-20170818113155.tar.xz : http://paste.openstack.org/raw/618752/

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