ECS:GC 不會移除 CAS Blob - 無法刪除 CAS 容器

Summary: CAS GC 故障診斷

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

GC 會掃掠 CAS ClipID,但不會掃過 Blob。有時客戶嘗試移除空的 CAS 儲存桶,並收到錯誤「儲存桶不為空」。

Cause

依設計工作

Resolution

確保 GC 正常運作的基本步驟:
1.透過 ssh 和使用者管理員連線至一個 ECS 節點。
2.檢查是否啟用了 CAS GC:
admin@ecsnode01:~> svc_gc config
svc_gc v3.4.2 (svc_tools v2.15.0)                 Started 2024-02-02 09:30:39

Local node ECS Object Version: 3.8.0.3-138685.3a0a9b6bf3a (3.8.0.3 GA)
Local VDC: urn:storageos:VirtualDataCenterData:cf84a100-bded-4e00-b5d3-8bf5f01495af vdc_s3_j07

Current Param values:

                                                                        Default              Current             
Type     Param name                                                     Value                Value               

Repo     com.emc.ecs.chunk.gc.repo.enabled                              true                 true                
Repo     com.emc.ecs.chunk.gc.repo.verification.enabled                 true                 true                
Repo     com.emc.ecs.chunk.gc.repo.reclaimer.no_recycle_window          78 hours             78 hours            

BTREE_L1 com.emc.ecs.chunk.gc.btree.enabled                             true                 true                
BTREE_L1 com.emc.ecs.chunk.gc.btree.scanner.verification.enabled        true                 true                
BTREE_L1 com.emc.ecs.chunk.gc.btree.scanner.copy.enabled                true                 true                

BTREE_L2 com.emc.ecs.chunk.gc.btree.reclaimer.level2.enabled            true                 true                
BTREE_L2 com.emc.ecs.chunk.gc.btree.occupancyScanner.level2.enabled     true                 true                

Partial  com.emc.ecs.chunk.gc.repo.partial.enabled                      true                 true                
Partial  com.emc.ecs.chunk.gc.repo.partial.merge_chunk_threshold        89478400             89478400            
Partial  com.emc.ecs.chunk.gc.repo.partial.merge_old_chunk_threshold    89478400             89478400            

Journal  com.emc.ecs.chunk.gc.journal.enabled                           true                 true                
Journal  com.emc.ecs.prtable.gc.enabled                                 true                 true                
Journal  com.emc.ecs.prtable.gc.record_expiration                       14 days              14 days             
Journal  com.emc.ecs.chunk.gc.journal.protection_period                 14 days              14 days             

CAS      com.emc.ecs.objectgc.cas.enabled                               true                 true                
CAS      com.emc.ecs.objectgc.cas.process_update.enabled                true                 true                
CAS      com.emc.ecs.objectgc.cas.process_object.enabled                true                 true                
CAS      com.emc.ecs.objectgc.cas.process_audit.enabled                 true                 true                
CAS      com.emc.ecs.objectgc.cas.consistency_scanner.enabled           true                 true                
CAS      com.emc.ecs.objectgc.cas.process_object.dry_run                false                false               

admin@ecsnode01:~> 
所有返回的“當前”讀數都應與“預設”匹配。

3.檢查是否設定了反射過期時間:
UI 顯示管理 - 容器 ->> 反映到期設定


4.如果是儲存桶移除問題,請執行 JCAS 或其他用於執行查詢的同等工具,確認儲存器為空:

CASScript>querySetExisting

Query Expression Properties:
        Start Time: UNBOUNDED
        End Time  : UNBOUNDED
        Type      : EXISTING

CASScript>query

Performing clip query

Query Expression Properties:
        Start Time: UNBOUNDED
        End Time  : UNBOUNDED
        Type      : EXISTING

Number of clips returned:     0
All results returned:         True


5.CAS 物件具有 28 天的隔離期。確認時間已過。這意味著刪除 剪輯時,最多可能需要 28 天才能刪除關聯的 Blob。

如果先前的所有步驟均已清除,但仍無法刪除貯體,請向支援部門開立服務要求。

 
 

Affected Products

ECS Appliance

Products

ECS Appliance, Elastic Cloud Storage
Article Properties
Article Number: 000080672
Article Type: Solution
Last Modified: 05 Feb 2024
Version:  4
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