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[Bug 1551223] Re: Live migration (volume-backed) failed if launch instance from bootable volume with new blank block-devices

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Yevgeniy Ovsyannikov <ovsyay@xxxxxxx>
Date: Mon, 29 Feb 2016 13:27:13 -0000
Reply-to: Bug 1551223 <1551223@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Project changed: cinder => nova

** Description changed:

  Kilo RHOSP Version: 2015.1.2
  
  I'm trying to live-migrate instance which was created with blank block
  devices like:
  
  nova boot --flavor m1.large --block-device source=image,id=5524dc31
  -fabe-
  47b5-95e7-53d915034272,dest=volume,size=24,shutdown=remove,bootindex=0
  TEST --nic net-id=a31c345c-a7d8-4ae8-870d-6da30fc6c083 --block-device
  source=blank,dest=volume,size=10,shutdown=remove --block-device
  source=blank,dest=volume,size=1,format=swap,shutdown=remove
  
  +--------------------------------------+------+--------+------------+-------------+---------------------+
  | ID                                                                               | Name | Status | Task State | Power State | Networks            |
  +--------------------------------------+------+--------+------------+-------------+---------------------+
  | 10b3414d-8a91-435d-9fe9-44b90837f519 | TEST | ACTIVE | -          | Running     | public=172.24.4.228 |
  +--------------------------------------+------+--------+------------+-------------+---------------------+
  
  Instance on compute1
  When Im trying migrate to compute2 I get this error:
  
  # nova live-migration TEST compute2
  ERROR (BadRequest): compute1 is not on shared storage: Live migration can not be used without shared storage. (HTTP 400) (Request-ID: req-5963c4c1-d486-4778-97dc-a6af73b0db0d)
  
- 
  I have found work flow, but volumes have to created manually:
  
  1. Create 2 basic volumes manually
  2. Perform this command:
  
  nova boot --flavor m1.large --block-device source=image,id=5524dc31
  -fabe-
  47b5-95e7-53d915034272,dest=volume,size=8,shutdown=remove,bootindex=0
  TEST --nic net-id=087a89bf-b864-4208-9ac3-c638bb1ad1cc --block-device
  source=volume,dest=volume,id=94e2c86a-b56d-
  4b06-b220-ebca182d01d3,shutdown=remove --block-device
  source=volume,dest=volume,id=362e13f6-4cc3-4bb5-a99c-
  0f65e37abe5c,shutdown=remove
  
- If create instance this way, lime-migration work proper
+ If create instance this way, live-migration work proper

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https://bugs.launchpad.net/bugs/1551223

Title:
  Live migration (volume-backed) failed if launch instance from bootable
  volume with new blank block-devices

Status in OpenStack Compute (nova):
  New

Bug description:
  Kilo RHOSP Version: 2015.1.2

  I'm trying to live-migrate instance which was created with blank block
  devices like:

  nova boot --flavor m1.large --block-device source=image,id=5524dc31
  -fabe-
  47b5-95e7-53d915034272,dest=volume,size=24,shutdown=remove,bootindex=0
  TEST --nic net-id=a31c345c-a7d8-4ae8-870d-6da30fc6c083 --block-device
  source=blank,dest=volume,size=10,shutdown=remove --block-device
  source=blank,dest=volume,size=1,format=swap,shutdown=remove

  +--------------------------------------+------+--------+------------+-------------+---------------------+
  | ID                                                                               | Name | Status | Task State | Power State | Networks            |
  +--------------------------------------+------+--------+------------+-------------+---------------------+
  | 10b3414d-8a91-435d-9fe9-44b90837f519 | TEST | ACTIVE | -          | Running     | public=172.24.4.228 |
  +--------------------------------------+------+--------+------------+-------------+---------------------+

  Instance on compute1
  When Im trying migrate to compute2 I get this error:

  # nova live-migration TEST compute2
  ERROR (BadRequest): compute1 is not on shared storage: Live migration can not be used without shared storage. (HTTP 400) (Request-ID: req-5963c4c1-d486-4778-97dc-a6af73b0db0d)

  I have found work flow, but volumes have to created manually:

  1. Create 2 basic volumes manually
  2. Perform this command:

  nova boot --flavor m1.large --block-device source=image,id=5524dc31
  -fabe-
  47b5-95e7-53d915034272,dest=volume,size=8,shutdown=remove,bootindex=0
  TEST --nic net-id=087a89bf-b864-4208-9ac3-c638bb1ad1cc --block-device
  source=volume,dest=volume,id=94e2c86a-b56d-
  4b06-b220-ebca182d01d3,shutdown=remove --block-device
  source=volume,dest=volume,id=362e13f6-4cc3-4bb5-a99c-
  0f65e37abe5c,shutdown=remove

  If create instance this way, live-migration work proper

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