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[Giridhar Jayavelu <gjayavelu@xxxxxxxxxx>]

Public bug reported:

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

** Affects: nova
     Importance: Undecided
         Status: New

** Attachment added: "n-cpu log"
   https://bugs.launchpad.net/bugs/1495834/+attachment/4464738/+files/n-cpu.log

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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):
  New

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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