I deleted my repository.config while KopiaUI runnig

Andrei · July 22, 2023, 9:40pm

Hello all!

I am happy user of KopiaUI, but suddenly I decide to play with kopia.exe CLI.

While KopiaUI running in background as usual, I created new repository with

kopia repository create filesystem --path=C:\kopia_test

Then i take a look at %USERPROFILE%\AppData\Roaming\kopia\ to see what changes in repository.config. I suppose that the new section will be added to it, or new config file will be created. But I found that my old repository.config file was overwritten with new one. Panicked, I disconnected from the new repository:

kopia repository disconnect

then repository.config file disappear.

Now I have KopiaUI running, still connected to my main repository, and in Repository tab of KopiaUI indicated repository.config that actually is absent. Next snapshot scheduled in 3 hours.

Is it OK? Did I do something wrong (except for not backing up huh)? Will KopiaUI continue to work? What will happens after restarting computer?

ZebCorp · July 23, 2023, 7:41am

If there no other repository.config exists (e.g all repositories are disconnected), Kopia create a new repository.config. If repository.config exists Kopia creates repository-XXX.config. For multiple repositories, you can create a “dummy” repository.config (e.g, non used, empty repository) and then connect another ones, which each gets its own repository-XXX.config.

You can delete repository.config file and connect again to the repository. Kopia just create a new config file.

Andrei · July 23, 2023, 8:02am

I was hoping for this since the documentation says

For each repository connection, Kopia maintains a configuration file…

But this is not happen in my case. The repository.config existed, but the program created a new one with the same name, overwriting the old one. Is this a bug?

ZebCorp · July 23, 2023, 8:29am

Hm. If repository.config existed, Kopia should created a new xxx one. But, if your repository was disconnected, then Kopia overwrite the existed one. New ones (repository-xxx.config) are created in situation of connected repositories.

kapitainsky · July 23, 2023, 9:04am

When using both UI and cmd with multiple repos good practice is to explicitly specify which config file you want to use with every kopia cmd command, e.g.:

kopia repository create filesystem --path=/path/to/repo --config-file %USERPROFILE%\AppData\Roaming\kopia\repository_local_testing.config

This way you will never have surprises.

Andrei · July 23, 2023, 9:20am

I sure that repository.config existed and repository was connected, because KopiaUI was runnig and showing my main repository detais on all tabs.

Andrei · July 23, 2023, 9:23am

I did the test with copia CLI only. This wrong behavior confirmed:

(notice the repository.config.mlock file still exists after first incident)

CLI log

PS C:\Users\Andrey\AppData\Roaming\kopia> dir


    Каталог: C:\Users\Andrey\AppData\Roaming\kopia


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         7/23/2023   3:45 AM              0 repository.config.mlock
-a----         7/23/2023  12:00 AM             57 ui-preferences.json


PS C:\Users\Andrey\AppData\Roaming\kopia> kopia repository create filesystem --path=C:\kopia\repo1
Enter password to create new repository:
Re-enter password for verification:
Initializing repository with:
  block hash:          BLAKE2B-256-128
  encryption:          AES256-GCM-HMAC-SHA256
Connected to repository.

NOTICE: Kopia will check for updates on GitHub every 7 days, starting 24 hours after first use.
To disable this behavior, set environment variable KOPIA_CHECK_FOR_UPDATES=false
Alternatively you can remove the file "C:\Users\Andrey\AppData\Roaming\kopia\repository.config.update-info.json".

Retention:
  Annual snapshots:                 3   (defined for this target)
  Monthly snapshots:               24   (defined for this target)
  Weekly snapshots:                 4   (defined for this target)
  Daily snapshots:                  7   (defined for this target)
  Hourly snapshots:                48   (defined for this target)
  Latest snapshots:                10   (defined for this target)
Compression disabled.

To find more information about default policy run 'kopia policy get'.
To change the policy use 'kopia policy set' command.

NOTE: Kopia will perform quick maintenance of the repository automatically every 1h0m0s
and full maintenance every 24h0m0s when running as Andrey@desktop-49rbbuq.

See https://kopia.io/docs/advanced/maintenance/ for more information.

NOTE: To validate that your provider is compatible with Kopia, please run:

$ kopia repository validate-provider

PS C:\Users\Andrey\AppData\Roaming\kopia> dir


    Каталог: C:\Users\Andrey\AppData\Roaming\kopia


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         7/23/2023   3:45 AM              0 repository.config.mlock
-a----         7/23/2023   2:57 PM            139 repository.config.update-info.json
-a----         7/23/2023  12:00 AM             57 ui-preferences.json


PS C:\Users\Andrey\AppData\Roaming\kopia> type .\repository.config
{
  "storage": {
    "type": "filesystem",
    "config": {
      "path": "C:\\kopia\\repo1",
      "fileMode": 384,
      "dirMode": 448,
      "dirShards": null
    }
  },
  "caching": {
    "cacheDirectory": "..\\..\\Local\\kopia\\fc52e8fb826eabc2",
    "maxCacheSize": 5242880000,
    "maxMetadataCacheSize": 5242880000,
    "maxListCacheDuration": 30
  },
  "hostname": "desktop-49rbbuq",
  "username": "Andrey",
  "description": "Repository in Filesystem: C:\\kopia\\repo1",
  "enableActions": false,
  "formatBlobCacheDuration": 900000000000
}
PS C:\Users\Andrey\AppData\Roaming\kopia> kopia repository create filesystem --path=C:\kopia\repo2
Enter password to create new repository:
Re-enter password for verification:
Initializing repository with:
  block hash:          BLAKE2B-256-128
  encryption:          AES256-GCM-HMAC-SHA256
Connected to repository.

NOTICE: Kopia will check for updates on GitHub every 7 days, starting 24 hours after first use.
To disable this behavior, set environment variable KOPIA_CHECK_FOR_UPDATES=false
Alternatively you can remove the file "C:\Users\Andrey\AppData\Roaming\kopia\repository.config.update-info.json".

Retention:
  Annual snapshots:                 3   (defined for this target)
  Monthly snapshots:               24   (defined for this target)
  Weekly snapshots:                 4   (defined for this target)
  Daily snapshots:                  7   (defined for this target)
  Hourly snapshots:                48   (defined for this target)
  Latest snapshots:                10   (defined for this target)
Compression disabled.

To find more information about default policy run 'kopia policy get'.
To change the policy use 'kopia policy set' command.

NOTE: Kopia will perform quick maintenance of the repository automatically every 1h0m0s
and full maintenance every 24h0m0s when running as Andrey@desktop-49rbbuq.

See https://kopia.io/docs/advanced/maintenance/ for more information.

NOTE: To validate that your provider is compatible with Kopia, please run:

$ kopia repository validate-provider

PS C:\Users\Andrey\AppData\Roaming\kopia> dir


    Каталог: C:\Users\Andrey\AppData\Roaming\kopia


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         7/23/2023   3:45 AM              0 repository.config.mlock
-a----         7/23/2023   3:02 PM            139 repository.config.update-info.json
-a----         7/23/2023  12:00 AM             57 ui-preferences.json


PS C:\Users\Andrey\AppData\Roaming\kopia> type .\repository.config
{
  "storage": {
    "type": "filesystem",
    "config": {
      "path": "C:\\kopia\\repo2",
      "fileMode": 384,
      "dirMode": 448,
      "dirShards": null
    }
  },
  "caching": {
    "cacheDirectory": "..\\..\\Local\\kopia\\1d3beccdd5e99fe1",
    "maxCacheSize": 5242880000,
    "maxMetadataCacheSize": 5242880000,
    "maxListCacheDuration": 30
  },
  "hostname": "desktop-49rbbuq",
  "username": "Andrey",
  "description": "Repository in Filesystem: C:\\kopia\\repo2",
  "enableActions": false,
  "formatBlobCacheDuration": 900000000000
}
PS C:\Users\Andrey\AppData\Roaming\kopia> kopia repository disconnect
deleted repository password for C:\Users\Andrey\AppData\Roaming\kopia\repository.config.
PS C:\Users\Andrey\AppData\Roaming\kopia> dir


    Каталог: C:\Users\Andrey\AppData\Roaming\kopia


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
-a----         7/23/2023  12:00 AM             57 ui-preferences.json


PS C:\Users\Andrey\AppData\Roaming\kopia> kopia --version
0.13.0 build: 7f69502bddd6650e7cb7a132291bc54920e58988 from: kopia/kopia

Andrei · July 23, 2023, 9:33am

As i show in my previous message, in my experience, when repository disconnecting, Kopia deletes repository.config. Hence, if repository was disconnected, then nothing exists to overwrite.

kapitainsky · July 23, 2023, 9:33am

It is not “wrong behaviour”. Simply cmd always uses repository.config file unless you specify otherwise using --config-file flag.

When you use UI only then it does it for you, when you use cmd it is your responsibility.

Andrei · July 23, 2023, 9:41am

I see, thanks!

But maybe then this documentation statement

For each repository connection, Kopia maintains a configuration file…

should be changed to something like

For each repository connection, user maintains a configuration file…

kapitainsky · July 23, 2023, 9:42am

Agree. You can update documentation and post PR. It is never ending work in progress like most open source projects.

Andrei · July 23, 2023, 9:51am

I understand and approve of the open source movement, but to my shame the git is rocket-science for me.

And thanks again for the replies.

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I deleted my repository.config while KopiaUI runnig

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