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    SOLVED Backup failing (flaky CIFS mount)

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    • jdaviescoates
      jdaviescoates last edited by girish

      I got this notification:

      Backup failed: Unknown system error -128: Unknown system error -128, mkdir. Logs are available here.

      Here are the logs:

      Dec 24 03:51:13 box:backupupload v8 heap : used 31653696 total: 43773952 max: 1526909922
Dec 24 03:51:21 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27187M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:51:31 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27236M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:51:41 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27267M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:51:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:51:43.905Z box:backupupload process: rss: 42160128 heapTotal: 43773952 heapUsed: 32011952 external: 5064058
Dec 24 03:51:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:51:43.908Z box:backupupload v8 heap : used 32012088 total: 43773952 max: 1526909922
Dec 24 03:51:51 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27296M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:52:01 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27335M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:52:11 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27383M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:52:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:52:13.895Z box:backupupload process: rss: 61669376 heapTotal: 42725376 heapUsed: 30804040 external: 4619642
Dec 24 03:52:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:52:13.895Z box:backupupload v8 heap : used 30804176 total: 42725376 max: 1526909922
Dec 24 03:52:21 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27435M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:52:31 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27485M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:52:41 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27516M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:52:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:52:43.904Z box:backupupload process: rss: 38522880 heapTotal: 41152512 heapUsed: 30619232 external: 7814522
Dec 24 03:52:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:52:43.912Z box:backupupload v8 heap : used 30619368 total: 41152512 max: 1526909922
Dec 24 03:52:51 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27549M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:53:01 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27594M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:53:11 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27642M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:53:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:53:13.897Z box:backupupload process: rss: 62439424 heapTotal: 41152512 heapUsed: 30215640 external: 11222906
Dec 24 03:53:13 box:backupupload v8 heap : used 30215776 total: 41152512 max: 1526909922
Dec 24 03:53:21 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27691M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:53:31 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27739M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:53:41 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27766M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:53:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:53:43.897Z box:backupupload process: rss: 50860032 heapTotal: 40103936 heapUsed: 29142336 external: 3502970
Dec 24 03:53:43 box:backupupload v8 heap : used 29142472 total: 40103936 max: 1526909922
Dec 24 03:53:51 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27797M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:54:01 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27843M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:54:11 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27894M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:54:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:54:13.896Z box:backupupload process: rss: 59416576 heapTotal: 40103936 heapUsed: 28492712 external: 455034
Dec 24 03:54:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:54:13.897Z box:backupupload v8 heap : used 28492848 total: 40103936 max: 1526909922
Dec 24 03:54:21 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27944M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:54:31 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 27991M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:54:41 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28022M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:54:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:54:43.913Z box:backupupload process: rss: 35647488 heapTotal: 40103936 heapUsed: 28482184 external: 2145146
Dec 24 03:54:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:54:43.923Z box:backupupload v8 heap : used 28482320 total: 40103936 max: 1526909922
Dec 24 03:54:52 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28058M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:55:02 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28103M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:55:12 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28158M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:55:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:55:13.902Z box:backupupload process: rss: 39378944 heapTotal: 41152512 heapUsed: 29247864 external: 12602234
Dec 24 03:55:13 box:backupupload v8 heap : used 29248000 total: 41152512 max: 1526909922
Dec 24 03:55:22 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28211M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:55:32 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28259M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:55:42 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28288M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:55:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:55:43.902Z box:backupupload process: rss: 37691392 heapTotal: 40103936 heapUsed: 29441000 external: 16565114
Dec 24 03:55:43 box:backupupload v8 heap : used 29441136 total: 40103936 max: 1526909922
Dec 24 03:55:52 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28322M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:55:58 box:tasks 3286: {"percent":72.4285714285714,"message":"Uploading backup 28344M@4MBps (office.uniteddiversity.coop)"}
Dec 24 03:56:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:56:13.902Z box:backupupload process: rss: 51838976 heapTotal: 43249664 heapUsed: 31012632 external: 1346066
Dec 24 03:56:13 box:backupupload v8 heap : used 31012768 total: 43249664 max: 1526909922
Dec 24 03:56:43 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:56:43.902Z box:backupupload process: rss: 52428800 heapTotal: 43249664 heapUsed: 31273968 external: 2607346
Dec 24 03:56:43 box:backupupload v8 heap : used 31274104 total: 43249664 max: 1526909922
Dec 24 03:57:03 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:57:03.845Z box:storage/filesystem [/mnt/backup/snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f.tar.gz] upload: out stream error. { [Error: EBADF: bad file descriptor, close] errno: -9, code: 'EBADF', syscall: 'close' }
Dec 24 03:57:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:57:13.904Z box:backupupload process: rss: 53137408 heapTotal: 43249664 heapUsed: 31447408 external: 3270754
Dec 24 03:57:13 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:57:13.904Z box:backupupload v8 heap : used 31447544 total: 43249664 max: 1526909922
Dec 24 03:57:19 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f (stdout): 2020-12-24T03:57:19.109Z box:backupupload upload completed. error: { BoxError: Unknown system error -128: Unknown system error -128, mkdir
at /home/yellowtent/box/src/storage/filesystem.js:93:36
at FSReqWrap.args [as oncomplete] (fs.js:140:20)
name: 'BoxError',
reason: 'External Error',
details: {},
message:
'Unknown system error -128: Unknown system error -128, mkdir' }
Dec 24 03:57:19 box:backups runBackupUpload: result - {"result":"Unknown system error -128: Unknown system error -128, mkdir"}
Dec 24 03:57:19 box:shell backup-snapshot/app_d0e0fa7c-e358-4d93-869b-e227feec349f code: 50, signal: null
Dec 24 03:57:19 box:backups office.uniteddiversity.coop Unable to backup { BoxError: Unknown system error -128: Unknown system error -128, mkdir
at /home/yellowtent/box/src/backups.js:874:29
at f (/home/yellowtent/box/node_modules/once/once.js:25:25)
at ChildProcess.<anonymous> (/home/yellowtent/box/src/shell.js:69:9)
at ChildProcess.emit (events.js:198:13)
at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)
name: 'BoxError',
reason: 'External Error',
details: {},
message:
'Unknown system error -128: Unknown system error -128, mkdir' }
Dec 24 03:57:19 box:taskworker Task took 7038.095 seconds
Dec 24 03:57:19 box:tasks setCompleted - 3286: {"result":null,"error":{"stack":"BoxError: Unknown system error -128: Unknown system error -128, mkdir\n at /home/yellowtent/box/src/backups.js:874:29\n at f (/home/yellowtent/box/node_modules/once/once.js:25:25)\n at ChildProcess.<anonymous> (/home/yellowtent/box/src/shell.js:69:9)\n at ChildProcess.emit (events.js:198:13)\n at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)","name":"BoxError","reason":"External Error","details":{},"message":"Unknown system error -128: Unknown system error -128, mkdir"}}
Dec 24 03:57:19 box:tasks 3286: {"percent":100,"result":null,"error":{"stack":"BoxError: Unknown system error -128: Unknown system error -128, mkdir\n at /home/yellowtent/box/src/backups.js:874:29\n at f (/home/yellowtent/box/node_modules/once/once.js:25:25)\n at ChildProcess.<anonymous> (/home/yellowtent/box/src/shell.js:69:9)\n at ChildProcess.emit (events.js:198:13)\n at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)","name":"BoxError","reason":"External Error","details":{},"message":"Unknown system error -128: Unknown system error -128, mkdir"}}

      I figured I'd start by just trying to run the backup again, but it fails immediately and I get this:

      Command failed with exit code 1 (EPERM): df -kPT /mnt/backup

      Which I guess means the backup mount isn't mounted.... so I rebooted to see if that would fix that...which it did... so now seeing if a backup will now complete...

      jdaviescoates P girish 3 Replies Last reply Reply Quote 1
      • jdaviescoates
        jdaviescoates @jdaviescoates last edited by

        Backing up post-reboot worked fine. So my guess is that my Hetzner Storage Box had a wobble and somehow became unmounted mid backup.

        jdaviescoates 1 Reply Last reply Reply Quote 0
        • robi
          robi last edited by

          we need better retries for mounts and DB connections during long running processes such as backups.

          Life of Gratitude.
          Life of CT Gifts

          1 Reply Last reply Reply Quote 3
          • P
            p44 @jdaviescoates last edited by

            @jdaviescoates I had a similar problem. I don't know if @nebulon reached Hetzner provider to ask more info's about long-time mounting of Box service.

            1 Reply Last reply Reply Quote 1
            • I
              iqweb last edited by

              same here on a Hetzner storage box 2 days back - couldn't manually remount either. Had to reboot & then remounted automatically as per /etc/fstab.

              1 Reply Last reply Reply Quote 2
              • girish
                girish Staff @jdaviescoates last edited by

                @jdaviescoates Did this get sorted out?

                1 Reply Last reply Reply Quote 0
                • jdaviescoates
                  jdaviescoates @jdaviescoates last edited by jdaviescoates

                  @girish yes:

                  @jdaviescoates said in Backup failing:

                  Backing up post-reboot worked fine. So my guess is that my Hetzner Storage Box had a wobble and somehow became unmounted mid backup.

                  Sounds like others have been experiencing similar too, so I'm guessing a (hopefully temporary) issue with Hetzner storage boxes.

                  Although like @robi said it'd be cool if there was some way Cloudron backups could try to survive such wobbles.

                  girish 1 Reply Last reply Reply Quote 2
                  • girish
                    girish Staff @jdaviescoates last edited by

                    @jdaviescoates Yes, at some point we want to make it possible to add mounts easily. When we do that, we can attempt to re-mount automatically, I guess.

                    robi 1 Reply Last reply Reply Quote 2
                    • robi
                      robi @girish last edited by

                      @girish not sure this is the right context..

                      this is about existing mounts and their resilience to disconnects.

                      • monitoring mounts for health
                      • allowing for self-healing if it exists from the protocol
                      • if not, try harder, remount command for example
                      • if still not, try unmount, then remount
                      • if still not, notify to reboot

                      Life of Gratitude.
                      Life of CT Gifts

                      P 1 Reply Last reply Reply Quote 1
                      • P
                        p44 @robi last edited by

                        @robi right suggestions.

                        @girish I had this problem again: all backup folder this morning where unmounted...

                        I 1 Reply Last reply Reply Quote 0
                        • I
                          iqweb @p44 last edited by

                          @p44 said in Backup failing:

                          @robi right suggestions.

                          @girish I had this problem again: all backup folder this morning where unmounted...

                          I've had the same thing again too

                          girish P 2 Replies Last reply Reply Quote 1
                          • girish
                            girish Staff @iqweb last edited by

                            @iqweb Are you also using CIFS/NFS?

                            I 1 Reply Last reply Reply Quote 1
                            • P
                              p44 @iqweb last edited by

                              @iqweb Still on Hetzner storage?

                              1 Reply Last reply Reply Quote 0
                              • I
                                iqweb @girish last edited by

                                @girish said in Backup failing:

                                @iqweb Are you also using CIFS/NFS?

                                Yes - storage provider: CIFS Mount

                                @p44 said in Backup failing:

                                @iqweb Still on Hetzner storage?

                                Yes - Hetzner storage box

                                & again - I had to reboot to be able to remount.

                                P 1 Reply Last reply Reply Quote 1
                                • P
                                  p44 @iqweb last edited by

                                  @iqweb Maybe Hetzner sometimes reboot Box instance? From my side is about one week CIFS mount is stable...

                                  1 Reply Last reply Reply Quote 0
                                  • nebulon
                                    nebulon Staff last edited by

                                    I also have to remount my cifs share about once a month. In my case I thought it was related to my residential home internet connection. Either way I think we have to handle such mount points better and maybe even attempt a remount automatically.

                                    P girish 2 Replies Last reply Reply Quote 3
                                    • P
                                      p44 @nebulon last edited by

                                      @nebulon Good idea to add a health-check to keep alive mounting

                                      1 Reply Last reply Reply Quote 1
                                      • girish
                                        girish Staff @nebulon last edited by

                                        @nebulon Does cifs mounting have some retry flags? (i.e the fstab options)

                                        nebulon 1 Reply Last reply Reply Quote 0
                                        • nebulon
                                          nebulon Staff @girish last edited by

                                          @girish not that I have found and https://linux.die.net/man/8/mount.cifs does not mention anything.

                                          Apparently systemd has some automounting feature https://www.freedesktop.org/software/systemd/man/systemd.automount.html which mounts the drive once the mountpoint is accessed by a process! Can't tell if it would reconnect such a mount though.

                                          girish 1 Reply Last reply Reply Quote 1
                                          • girish
                                            girish Staff @nebulon last edited by

                                            @nebulon Maybe https://askubuntu.com/questions/1210867/remount-cifs-on-network-reconnect ? (just expands on your link)

                                            imc67 1 Reply Last reply Reply Quote 1
                                            • imc67
                                              imc67 @girish last edited by

                                              @girish & @nebulon any news on this issue?

                                              I started yesterday to backup via cifs to a Hetzner storagebox (2 backups a day), today the first backup failed due to

                                              Command failed with exit code 1 (EPERM): df -kPT /backups_cifs

                                              I solved it with a manual:

                                              sudo umount /backups_cifs
sudo mount -a

                                              But do I need to script this with a daily cron or is Cloudron able to recover from this somehow?

                                              P 1 Reply Last reply Reply Quote 0
                                              • P
                                                p44 @imc67 last edited by p44

                                                @imc67 Dear, this happened because Hetzner did some maintenance on their Box Service.

                                                Also a Cloudron restart solved problem.

                                                nebulon 1 Reply Last reply Reply Quote 0
                                                • nebulon
                                                  nebulon Staff @p44 last edited by

                                                  @p44 actually I hit the same thing today morning, had to remount the disk. I happily ignored the heads up warning email about the maintenance from hetzner 😉

                                                  P 1 Reply Last reply Reply Quote 1
                                                  • P
                                                    p44 @nebulon last edited by p44

                                                    @nebulon Yes, but not all my Cloudron installs has been affected, even if attached at the same Hetzner Box... Just restarted and all was operational again 🙂

                                                    nebulon 1 Reply Last reply Reply Quote 0
                                                    • nebulon
                                                      nebulon Staff @p44 last edited by

                                                      @p44 in such cases a remount alone would be enough, no need to reboot the whole server, if that is what you did. This would then not affect downtime. We will soon implement auto-remounting in such cases.

                                                      P 1 Reply Last reply Reply Quote 5
                                                      • P
                                                        p44 @nebulon last edited by

                                                        @nebulon Yes before rebooting I tried to umount-remount but it seems it has been impossible due to an error... So I decided to restart.

                                                        About auto-remounting it will be an amazing feature

                                                        1 Reply Last reply Reply Quote 1
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