If you are having trouble dealing with an error, please let us know on the Discord.
- Couldn't ensure that exactly snapshots exist because an error occurred: . For more information about snapshots, visit: memgr.ph/snapshots.
- Couldn't ensure that only the absolutely necessary WAL files exist because an error occurred: . For more details, visit: memgr.ph/snapshots.
Database snapshots are like a view of a database as it was at a certain point in time. It is a read-only copy of the data that can be used for backup or data persistence. Memgraph will try to load the newest snapshot file on startup.
Because snapshots are read-only, any modifications will result in corrupt files that won't be loaded. The solution is to delete the snapshot files and to start Memgraph again.
When you stop a Docker container, the data and state within that container are preserved until the container is explicitly removed. This means that any data or changes you've made within the container are retained and can be accessed again when the container is restarted.
To access this data, you need to ensure you're starting the same container instance that you used previously. Here's how you can do that:
If you had named your Memgraph container as "memgraph", for instance, you can easily restart it using the following command:
docker start memgraph
This command will bring the named container back to life, retaining all the data and changes you had made in it.
If you didn't assign a specific name to your container when you created it, Docker would have given it a random name. To find and restart the correct container list all the containers on your system using the following command:
docker ps -a
From the list, identify the container you want to restart. Note down the container ID associated with it and use it to restart the container:
docker start [CONTAINER_ID]
[CONTAINER_ID] with the actual ID you noted down. Once executed, your
container will be up and running again, with all its data intact.
If you weren't able to find the error, please submit it through a Support Ticket so we can look into it and get back to you.