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Oplog

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Aikesheng Open Source Community
Aikesheng Open Source Community
Nov 28, 2023 · Databases

Step‑by‑Step MongoDB Migration Using Full Backup and Incremental Oplog

This article explains how to migrate a 240 GB MongoDB replica set by performing a full backup with oplog, extracting the incremental oplog timestamp, and then applying incremental backup and restore scripts to minimize downtime, while providing detailed shell commands and precautionary tips.

BackupData RestoreDatabase
0 likes · 9 min read
Step‑by‑Step MongoDB Migration Using Full Backup and Incremental Oplog
Aikesheng Open Source Community
Aikesheng Open Source Community
Oct 10, 2023 · Databases

Diagnosing and Resolving MongoDB and Redis Replication Failures: Oplog Issues and Recovery Strategies

This article analyzes a MongoDB replication failure caused by missing oplog entries, compares logical initialization repair methods with Redis replication, and provides practical steps—including oplog size adjustment and snapshot techniques—to restore synchronization and prevent similar issues in production environments.

Database RecoveryLogical InitializationMongoDB
0 likes · 9 min read
Diagnosing and Resolving MongoDB and Redis Replication Failures: Oplog Issues and Recovery Strategies
Aikesheng Open Source Community
Aikesheng Open Source Community
Jul 19, 2021 · Databases

MongoDB Cluster Point-in-Time Recovery (PITR) Procedure Using Shard and Config Server Restoration

This article demonstrates a step‑by‑step point‑in‑time recovery of a MongoDB sharded cluster by restoring shard instances, replaying oplog entries to a specific timestamp, updating metadata, and finally rebuilding the config server and mongos to achieve a consistent snapshot with max(id)=15.

BackupMongoDBOplog
0 likes · 13 min read
MongoDB Cluster Point-in-Time Recovery (PITR) Procedure Using Shard and Config Server Restoration