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FabricPool aggrの削除後にS3サーバがONTAPから多数のリスト要求を受信する

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Category:
ontap-9
Specialty:
CORE
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環境

  • ONTAP 9
  • Hitachi Content Platform(HCP)

問題

  • ファブリックプールアグリゲートを削除したあと、ONTAPからオブジェクトストレージ(HCP)で多数のGET(リスト)要求が受信され、オブジェクトストアのパフォーマンスが大幅に低下しました。

ONTAP started sending tons of HTTP listing requests causing them other issues.
- ontap [20/Feb/2025:15:29:52 +1300] "GET /art*****/?max-keys=1000&prefix=fxxxxxx9-3xx5-4xx2-8xx2-8xxxxxxxxx91 HTTP/1.1" 500 0 311716061 013 0
- ontap [20/Feb/2025:15:31:42 +1300] "GET /art*****/?max-keys=1000&prefix=fxxxxxx9-3xx5-4xx2-8xx2-8xxxxxxxxx91 HTTP/1.1" 500 0 311604094 013 0
- ontap [20/Feb/2025:15:33:42 +1300] "GET /art*****/?max-keys=1000&prefix=fxxxxxx9-3xx5-4xx2-8xx2-8xxxxxxxxx91 HTTP/1.1" 500 0 268425944 011 0
- ontap [20/Feb/2025:15:36:02 +1300] "GET /art*****/?max-keys=1000&prefix=fxxxxxx9-3xx5-4xx2-8xx2-8xxxxxxxxx91 HTTP/1.1" 500 0 311347027 011 0

  • 削除されたアグリゲートの下に存在していたFlexGroupメンバーで大量のデータが階層化されていました。

Volume : <volume_name>

Feature                                           Used      Used%
--------------------------------      ----------------      -----
Volume Data Footprint                           94.9TB       381%
Footprint in Performance Tier          1.81TB         2%
Footprint in hcpartnzpontap01          93.3TB        98%
Flexible Volume Metadata                         562GB         2%
Delayed Frees                                    131GB         1%
File Operation Metadata                         4.00KB         0%
Total                                           95.6TB       383%

Effective Total Footprint                       95.6TB       383%
 

  • ファブリックプールアグリゲートが削除される前に、最適化されていないボリューム移動を実行してデータを(ローカルアグリゲートに)再配置したため、このボリュームの階層化データはそのまま(オブジェクトストア)に残りました。ファブリックプールアグリゲートが削除されると、 クリーンアップが開始されます。
 
2025-02-20T02:29:51Z 68296316172029660   [8:0] CLOUD_BIN_ERR:  cloud_bin_cleanup_info_alloc: Bin cleanup started for btuuid fxxxxxx9-3xx5-4xx2-8xx2-8xxxxxxxxx91 of bin-uuid=cxxxxx2-bxxe-1xx9-8xx3-0xxxxxxxxxx6, config-id=1.
2025-02-20T02:33:36Z 68296697564845269   [15:0] CLOUD_BIN_ERR:  cloud_bin_cleanup_info_alloc: Bin cleanup started for btuuid fxxxxxx9-3xx5-4xx2-8xx2-8xxxxxxxxx91 of bin-uuid=cxxxxx2-bxxe-1xx9-8xx3-0xxxxxxxxxx6, config-id=1.

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