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[OpenStack Infra <1495834@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/231468
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=71d2d31b9b86df4071c3728666842eec6cd1c727
Submitter: Jenkins
Branch:    master

commit 71d2d31b9b86df4071c3728666842eec6cd1c727
Author: Radoslav Gerganov <rgerganov@xxxxxxxxxx>
Date:   Tue Oct 6 16:01:45 2015 +0300

    VMware: specify chunk size when reading image data
    
    When reading OVA image data from Glance without specifying chunk size,
    nova-compute tries to read the entire tar stream in memory because this
    is how the tar fileobject is implemented. This patch fixes this by
    specifying the chunk size to be 64KB.
    
    Change-Id: I953dfa1c28c25886306e1c9afe281cf2faca4db5
    Closes-Bug: #1495834


** Changed in: nova
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1495834

Title:
  [VMware] Launching an instance with large image size crashes nova-
  compute

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Created an image of size ~6.5GB.
  Launching a new instance from this image crashes nova-compute.

  I'm observing nova-compute node running out of memory.

  This could probably be due to reading entire file stream in memory
  without using proper chunk size.

  This is from git source and not any distribution.

  git log -1
  commit 1cf97bd096112b8d2e0eb95fd2a636a53cbf0bcc
  Merge: a54c0d6 17fe88a
  Author: Jenkins <jenkins@xxxxxxxxxxxxxxxxxxxx>
  Date:   Mon Sep 14 02:34:18 2015 +0000

      Merge "Fix typo in lib/keystone"

  nova image-show fa376c74-4058-492b-9081-f31522f640f6
  +----------------------+--------------------------------------+
  | Property             | Value                                |
  +----------------------+--------------------------------------+
  | OS-EXT-IMG-SIZE:size | 6997009920                           |
  | created              | 2015-09-14T10:53:09Z                 |
  | id                   | fa376c74-4058-492b-9081-f31522f640f6 |
  | minDisk              | 0                                    |
  | minRam               | 0                                    |
  | name                 | win2k12-01                           |
  | progress             | 100                                  |
  | status               | ACTIVE                               |
  | updated              | 2015-09-14T10:59:33Z                 |
  +----------------------+--------------------------------------+

  Attached n-cpu.log

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