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Problem

Objbaker service startup fails to mount the configured cloud object storage due to unclean shutdown

Solution

  1. Start the Crossmeta drivers and make sure it is available in read-write mode. If not root file system check is required which can be performed as follows from Administrator Command Prompt

    c:\program files\crossmeta\service_crossmeta start
    c:\program files\crossmeta\service_crossmeta check

  2. Check syslog messages files in v:\var\log\syslog to identify potential problems.  If the objbaker is reporting  that the object storage appears to be mounted because a clean shutdown was not possible earlier, then it is required to reset-mounted-flag manually only if its  not really mounted on a different computer.

  3. To run the command manually query the service to get the command line

    >sc qc objdisk1
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: objdisk1
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START  (DELAYED)
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : "c:\program files\crossmeta\objbacker.exe" --cacert="c:\program files\crossmeta\ca-bundle.crt"  --accessFile=/etc/.s3azure_passwd  --s3Type=azure --baseURL=https://zfstest.blob.core.windows.net/ --directIO  --noAutoDetect  --size=10T --timeout=30 --blockCacheSize=100 --blockCacheThreads=8 --minWriteDelay=5000 --md5CacheSize=1000000 --ssl --blockSize=1024K -o no_pagecache --filename=file.vhdx disk1  /mnt
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : My first object disk disk1 from Azure
        DEPENDENCIES       : cxfuse
        SERVICE_START_NAME : LocalSystem

  4. Copy and paste the BINARY_PATH_NAME value and add -f option to run interactively and confirm the problem

    V:\>"c:\program files\crossmeta\objbacker.exe" --cacert="c:\program files\crossmeta\ca-bundle.crt"  --accessFile=/etc/.s3azure_passwd  --s3Type=azure --baseURL=https://zfstest.blob.core.windows.net/ --directIO  --noAutoDetect  --size=10T --timeout=30 --blockCacheSize=100 --blockCacheThreads=8 --minWriteDelay=5000 --md5CacheSize=1000000 --ssl --blockSize=1024K -o no_pagecache --filename=file.vhdx disk1  /mnt -f
objbacker.exe: auto-detection disabled; using configured block size 1m and file size 10t
objbacker.exe: error: https://zfstest.blob.core.windows.net/disk1/ appears to be already mounted



  5. Reset the mounted flag as follows

    V:\>"c:\program files\crossmeta\objbacker.exe" --cacert="c:\program files\crossmeta\ca-bundle.crt"  --accessFile=/etc/.s3azure_passwd  --s3Type=azure --baseURL=https://zfstest.blob.core.windows.net/ --directIO  --noAutoDetect  --size=10T --timeout=30 --blockCacheSize=100 --blockCacheThreads=8 --minWriteDelay=5000 --md5CacheSize=1000000 --ssl --blockSize=1024K -o no_pagecache --filename=file.vhdx disk1  --reset-mounted-flag
objbacker.exe: auto-detection disabled; using configured block size 1m and file size 10t
objbacker.exe: resetting mounted flag for https://zfstest.blob.core.windows.net/disk1/
objbacker.exe: done




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