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OpenStack:Cinderボリュームの新規作成時に、Glanceからのイメージのコピーに時間がかかります

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環境

  • OpenStack Yoga以前のリリース
  • NFS

問題

新しいCinderボリュームをプロビジョニングする場合:

  • ボリュームのプロビジョニングには10分以上かかることがあります
  • Cinder volume.logを確認する際には、Glanceイメージの取得に多くの時間が費やされます。

2022-07-12 10:58:56.195 190 DEBUG cinder.image.image_utils [req-xxxx] Image fetch details: dest /var/lib/cinder/conversion/image_fetch_1234host@netapp, size 3012.00 MB, duration 544.82 sec fetch /usr/lib/python3.6/site-packages/cinder/image/image_utils.py:465

2022-07-12 10:58:56.195 190 INFO cinder.image.image_utils [req-xxxx] Image download 3012.00 MB at 5.53 MB/s  

  • 上記の画像取得タスクが完了するまでに9分以上かかりました。

OpenStackの外部でのコピーの実行は数秒で完了します。

# time cp /var/lib/glance/images/1234-5678-abcd-1234-123456789012 temp/    
                                 
real   0m4.030s
user   0m0.004s
sys    0m1.495s

 

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