Scrubbing parameters for replicas

When a command makes a change to a replica, an entry is recorded in the replica’s operation log. Also, when you export an update packet, an export_sync record is created for each target replica. These records are used by the recoverpacket command to reset a replica’s epoch number matrix.

You can scrub oplog entries and export_sync records to reclaim disk space and database records, but you must keep them long enough to ensure that you can recover from replica failures and packet losses.

Related concepts
Operation logs for databases
Troubleshoot MultiSite operations
Related reference
scruboplog

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