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Update info regarding .old backups #1465

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Merged
merged 3 commits into from
Nov 12, 2025
+5 −3
Merged

Update info regarding .old backups #1465

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eca1fab
old dir info
andrejtonev Nov 10, 2025
3c8c74b
Apply suggestions from code review
matea16 Nov 12, 2025
12ea30f
Merge branch 'memgraph-3-7' into old_dir_backup
matea16 Nov 12, 2025
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3 changes: 2 additions & 1 deletion pages/clustering/high-availability.mdx
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Expand Up @@ -619,7 +619,8 @@ the cluster:
synchronize its state.
- The replica's old durability files will be preserved in a `.old` directory in
`data_directory/snapshots` and `data_directory/wal` folders, allowing admins
to manually recover data if needed.
to manually recover data if needed. The `.old` directory is reused for subsequent
recovery operations, meaning **only a single backup is maintained at any time**.

Depending on the replication mode used, there are different levels of data loss
that can happen upon the failover. With the default `SYNC` replication mode,
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5 changes: 3 additions & 2 deletions pages/database-management/backup-and-restore.mdx
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Expand Up @@ -91,8 +91,9 @@ Use an absolute path when specifying the snapshot location. If you provide a rel
to the Memgraph execution path.

Before modifying the local data directory, Memgraph will move all existing WALs and snapshots to a hidden
directory in the format:
`.old_<time-since-epoch>`
`.old` directory. This directory is reused for subsequent recovery operations, meaning **only a single backup
is maintained at any time**. Files already present in the `.old` directory will be deleted before moving
the current files, ensuring only the most recent backup is preserved.

If the instance is not freshly started, add the `FORCE` flag to your command:

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