yahoo-eng-team team mailing list archive

[Tomoki Sekiyama <tomoki.sekiyama@xxxxxxx>]

Public bug reported:

When the disk has little free space ( e.g. ~600MB ), glance operations
(even glance image-delete) hang up and don't finish forever.


This issue is seen in the one node setup with devstack.

% glance image-list
+--------------------------------------+---------------------------------+-------------+------------------+-----------+--------+
| ID                                   | Name                            | Disk Format | Container Format | Size      | Status |
+--------------------------------------+---------------------------------+-------------+------------------+-----------+--------+
| 535f59b9-118b-4960-bfbe-17ac9a7f17c5 | cirros-0.3.2-x86_64-uec         | ami         | ami              | 25165824  | active |
| e8e25ec5-853e-4492-9a21-d6d413dc49ae | cirros-0.3.2-x86_64-uec-kernel  | aki         | aki              | 4969360   | active |
| ef56e39a-6c59-4503-9662-dbe2e6f9e794 | cirros-0.3.2-x86_64-uec-ramdisk | ari         | ari              | 3723817   | active |
| dcc47833-1fc5-4c9a-8131-4560ca94f2de | f20-qga                         | qcow2       | bare             | 645332992 | active |
| e82ca789-47cb-4dcd-9fec-737c695d7cb7 | Fedora-x86_64-20-20140618-sda   | qcow2       | bare             | 209649664 | active |
+--------------------------------------+---------------------------------+-------------+------------------+-----------+--------+


(.... do something like "nova boot ..." and disk space will go below 600MB)


% glance image-delete f20-qga

( =>  will hang up. Any other operations, such as  creating new image,
are also hang.)


% rm -rf /tmp/...  (free some disk spaces)

(=> glance will recover from hang up)


Expected behavior is that the operation fails with IO error (No disk space).


(If the filesystem free space is really low, e.g. 50MB, it fails with IO error, as expected.)

** Affects: glance
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1376512

Title:
  hang when disk has little free space

Status in OpenStack Image Registry and Delivery Service (Glance):
  New

Bug description:
  When the disk has little free space ( e.g. ~600MB ), glance operations
  (even glance image-delete) hang up and don't finish forever.

  
  This issue is seen in the one node setup with devstack.

  % glance image-list
  +--------------------------------------+---------------------------------+-------------+------------------+-----------+--------+
  | ID                                   | Name                            | Disk Format | Container Format | Size      | Status |
  +--------------------------------------+---------------------------------+-------------+------------------+-----------+--------+
  | 535f59b9-118b-4960-bfbe-17ac9a7f17c5 | cirros-0.3.2-x86_64-uec         | ami         | ami              | 25165824  | active |
  | e8e25ec5-853e-4492-9a21-d6d413dc49ae | cirros-0.3.2-x86_64-uec-kernel  | aki         | aki              | 4969360   | active |
  | ef56e39a-6c59-4503-9662-dbe2e6f9e794 | cirros-0.3.2-x86_64-uec-ramdisk | ari         | ari              | 3723817   | active |
  | dcc47833-1fc5-4c9a-8131-4560ca94f2de | f20-qga                         | qcow2       | bare             | 645332992 | active |
  | e82ca789-47cb-4dcd-9fec-737c695d7cb7 | Fedora-x86_64-20-20140618-sda   | qcow2       | bare             | 209649664 | active |
  +--------------------------------------+---------------------------------+-------------+------------------+-----------+--------+

  
  (.... do something like "nova boot ..." and disk space will go below 600MB)

  
  % glance image-delete f20-qga

  ( =>  will hang up. Any other operations, such as  creating new image,
  are also hang.)

  
  % rm -rf /tmp/...  (free some disk spaces)

  (=> glance will recover from hang up)

  
  Expected behavior is that the operation fails with IO error (No disk space).

  
  (If the filesystem free space is really low, e.g. 50MB, it fails with IO error, as expected.)

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