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  3. Since update to v8.2.1 backups fail with "Too many empty directories"

Since update to v8.2.1 backups fail with "Too many empty directories"

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    • nebulonN nebulon

      so are all those empty dirs within the upload folder in your case? Also did you happen to change the data layout at some point in the past?

      S Offline
      S Offline
      shrey
      wrote on last edited by
      #21

      @nebulon said in Since update to v8.2.1 backups fail with "Too many empty directories":

      so are all those empty dirs within the upload folder in your case?

      Except for :

      /mnt/immich/i/typesense
      

      all of the paths seems to be:

      /mnt/immich/i/upload/upload/b4fe288d-66ef-42ac-b74a-14ec12220a71/../..
      

      @nebulon said in Since update to v8.2.1 backups fail with "Too many empty directories":

      Also did you happen to change the data layout at some point in the past?

      I think i migrated the app storage from local disk to a volume, around 5 months ago.

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      • nebulonN Offline
        nebulonN Offline
        nebulon
        Staff
        wrote on last edited by
        #22

        Ah then this looks like an upstream bug https://github.com/immich-app/immich/issues/9202 with the discussion at https://github.com/immich-app/immich/discussions/9204 so looks like their strategy is that the user has to manually purge those.

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        • S Offline
          S Offline
          shrey
          wrote on last edited by shrey
          #23

          @nebulon

          Seem to have finally resolved the issue, by deleting those empty directories, using find . -type d -empty -delete, for now.

          Although, the app is steadily creating new empty directories already!

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          • S Offline
            S Offline
            SebGG
            wrote on last edited by
            #24

            i have the same problem, but it stops while backuping my nextcloud instance. Is this a general issue?

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            • S Offline
              S Offline
              SebGG
              wrote on last edited by
              #25

              ok, i found the directory. It was the preview directory in the nextcloud instance. After cleaning the directory the backup was succesfull.

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              • J Offline
                J Offline
                jagan
                wrote on last edited by
                #26

                I have this backup issue with two instances.
                In one with Nextcloud, it is empty directories.
                In a Wordpress one, it is executable files.
                Hoping to tackle this two this weekend.

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                • S Offline
                  S Offline
                  SebGG
                  wrote on last edited by
                  #27

                  ok. but is this a bug or normal behavior caused by the cloudron update? i would say that these empty folders must have been there for some time and the backup only ran into this error last week.

                  girishG 1 Reply Last reply
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                  • S SebGG

                    ok. but is this a bug or normal behavior caused by the cloudron update? i would say that these empty folders must have been there for some time and the backup only ran into this error last week.

                    girishG Offline
                    girishG Offline
                    girish
                    Staff
                    wrote on last edited by
                    #28

                    @SebGG this is normal behavior starting from 8.2 . we put this check in place to prevent backup or app data corruption .

                    • Too many empty folders. This means that something suspect is going on with the app . When you create too many empty dirs, you run out of inodes over time and this leads to fs corruption. Since empty dirs don't show up in du listings, people wonder why fs is becoming fullish when files are not taking space

                    • Too many executables. This is a security issue if data files are executable. In most cases, this is because user used a tarball which had incorrect permissions inside it . Or the mount permissions or wrong.

                    So, the backup failure is a way for end users to check on both the things above.

                    J 1 Reply Last reply
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                    • S Offline
                      S Offline
                      SebGG
                      wrote on last edited by
                      #29

                      ok, great!

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                      • nebulonN nebulon referenced this topic on
                      • girishG girish

                        @SebGG this is normal behavior starting from 8.2 . we put this check in place to prevent backup or app data corruption .

                        • Too many empty folders. This means that something suspect is going on with the app . When you create too many empty dirs, you run out of inodes over time and this leads to fs corruption. Since empty dirs don't show up in du listings, people wonder why fs is becoming fullish when files are not taking space

                        • Too many executables. This is a security issue if data files are executable. In most cases, this is because user used a tarball which had incorrect permissions inside it . Or the mount permissions or wrong.

                        So, the backup failure is a way for end users to check on both the things above.

                        J Offline
                        J Offline
                        jagan
                        wrote on last edited by
                        #30

                        @girish Hi Girish, I have this 'too many empty directories' issue on one of my Nextcloud instance and I haven't a clue how to deal with it. My last backup was on 6 Jan and I am getting nervous about it. Cloudron means I don't have to worry about backups, and lately, I an getting sleepless about this.

                        Can you please add an override for this error? Not having backups is IMHO, a more serious issue for me than any empty directories.

                        Also, running the command shows me directories that clearly are not empty in anyway. I don't know what else to do - I can't delete these directories precisely because they are not empty.

                        Any other pointers would be very helpful!

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                        • J Offline
                          J Offline
                          joseph
                          Staff
                          wrote on last edited by
                          #31

                          @jagan can you check the output of command find /app/data -type d -empty | wc -l in Web Terminal of nextcloud . If that is not a high number, then can you try back up again? The code is simply running that command and concluding the number is too high.

                          imc67I jdaviescoatesJ 2 Replies Last reply
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                          • J joseph

                            @jagan can you check the output of command find /app/data -type d -empty | wc -l in Web Terminal of nextcloud . If that is not a high number, then can you try back up again? The code is simply running that command and concluding the number is too high.

                            imc67I Offline
                            imc67I Offline
                            imc67
                            translator
                            wrote on last edited by imc67
                            #32

                            @joseph said in Since update to v8.2.1 backups fail with "Too many empty directories":

                            @jagan can you check the output of command find /app/data -type d -empty | wc -l in Web Terminal of nextcloud . If that is not a high number, then can you try back up again? The code is simply running that command and concluding the number is too high.

                            just curious, I don't have a backup issue but executed the command in web terminal NC: 12471 is this high?

                            and Immich: 26423

                            jdaviescoatesJ 1 Reply Last reply
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                            • imc67I imc67

                              @joseph said in Since update to v8.2.1 backups fail with "Too many empty directories":

                              @jagan can you check the output of command find /app/data -type d -empty | wc -l in Web Terminal of nextcloud . If that is not a high number, then can you try back up again? The code is simply running that command and concluding the number is too high.

                              just curious, I don't have a backup issue but executed the command in web terminal NC: 12471 is this high?

                              and Immich: 26423

                              jdaviescoatesJ Offline
                              jdaviescoatesJ Offline
                              jdaviescoates
                              wrote on last edited by
                              #33

                              @imc67 said in Since update to v8.2.1 backups fail with "Too many empty directories":

                              just curious, I don't have a backup issue but executed the command in web terminal NC: 12471 is this high?

                              You made me curious too!

                              I seem to have 31267 (but also not currently having any backup issues either)

                              I use Cloudron with Gandi & Hetzner

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                              • J joseph

                                @jagan can you check the output of command find /app/data -type d -empty | wc -l in Web Terminal of nextcloud . If that is not a high number, then can you try back up again? The code is simply running that command and concluding the number is too high.

                                jdaviescoatesJ Offline
                                jdaviescoatesJ Offline
                                jdaviescoates
                                wrote on last edited by
                                #34

                                @joseph said in Since update to v8.2.1 backups fail with "Too many empty directories":

                                If that is not a high number,

                                Define high?

                                @joseph said in Since update to v8.2.1 backups fail with "Too many empty directories":

                                The code is simply running that command and concluding the number is too high.

                                How does the code define it?

                                I use Cloudron with Gandi & Hetzner

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                                • girishG Offline
                                  girishG Offline
                                  girish
                                  Staff
                                  wrote on last edited by
                                  #35

                                  The number are just some pragmatic values. Empty dirs - 50000 , executables - 20000 and symlinks - 20000 . If it exceeds these, it will error.

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