mongodb data_error ai_generated partial

MongoServerError: OplogTruncationFailed: 恢复期间命名空间 local.oplog.rs 的 oplog 条目被截断

MongoServerError: OplogTruncationFailed: oplog entry truncated during recovery for namespace local.oplog.rs

ID: mongodb/oplog-truncation-after-point-in-time-recovery

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70%修复率
80%置信度
1证据数
2024-03-22首次发现

版本兼容性

版本状态引入弃用备注
MongoDB 6.0 active — — —
MongoDB 7.0 active — — —
MongoDB 8.0 active — — —

根因分析

从备份进行时间点恢复期间，由于恢复时间戳超出 oplog 窗口或 oplog 损坏，oplog 被截断。

English

During point-in-time recovery from a backup, the oplog was truncated because the recovery timestamp exceeded the oplog window or the oplog was corrupted.

generic

解决方案

  1. Perform a full resync of the affected secondary from a healthy primary using rs.reconfig() or initial sync.
  2. Use mongodump/mongorestore with --oplogReplay to restore from a backup that includes a consistent oplog window.
  3. If the primary is affected, promote a secondary with a valid oplog using rs.stepDown() and rs.reconfig().

无效尝试

常见但无效的做法:

  1. 90% 失败

    Oplog size change affects future operations, not past truncation.

  2. 70% 失败

    Incompatible backup may have different oplog range, causing further errors.

  3. 100% 失败

    Direct modification can corrupt the replica set and cause data loss.