Function disklessLoadDiscardBackup

app/redis-6.2.6/src/replication.c:1538–1540

Helper function for readSyncBulkPayload() to discard our old backups * when the loading succeeded. */

/* Helper function for readSyncBulkPayload() to discard our old backups
 * when the loading succeeded. */
void disklessLoadDiscardBackup(dbBackup *buckup, int flag) {
    discardDbBackup(buckup, flag, replicationEmptyDbCallback);
}

/* Asynchronously read the SYNC payload we receive from a master */
#define REPL_MAX_WRITTEN_BEFORE_FSYNC (1024*1024*8) /* 8 MB */