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Prior to release 4.0.22, Disk-Backed History stores are located as shown below and are not included in the Ignition GWBK 

  • ~yourIgnitionInstance\user-lib\cls\data\h2


From release 4.0.22, Disk-Backed History store are located as shown below and are included in the Ignition GWBK

  • ~yourIgnitionInstance\data\modules\com.cirrus-link\com.cirruslink.mqtt.transmission.gateway\h2
  • ~yourIgnitionInstance\data\modules\com.cirrus-link\com.cirruslink.mqtt.azure.gateway\h2
  • ~yourIgnitionInstance\data\modules\com.cirrus-link\com.cirruslink.mqtt.aws.gateway\h2
  • ~yourIgnitionInstance\data\modules\com.cirrus-link\com.cirruslink.mqtt.google.gateway\h2


From release 4.0.22, the Alarm Disk-Backed History store is located as shown below and is included in the Ignition GWBK

~yourIgnitionInstance\data\modules\com.cirrus-link\com.cirruslink.mqtt.engine.gateway\h2


We identified an issue with locating these history stores in the ~yourIgnitionInstance\data\ directory which results in the inability to manually take a GWBK from the Gateway webpage or run a scheduled GWBK. 

The issue only occurs on Windows and does not affect Linux or Mac installations.


To mitigate these issue, from release 4.0.25, the base path for the database location of the Disk-Backed History store is configurable.

  • The default base path for Linux is ~yourIgnitionInstance\data\modules and the database will be included in the Ignition GWBK
  • The default location for Windows Linux is ~yourIgnitionInstance\user-lib\modules and the database will not be included in the Ignition GWBK
    • The database file will be created in this directory under the base paths
      • com.cirrus-link\com.cirruslink.mqtt.transmission.gateway\h2
      • com.cirrus-link\com.cirruslink.mqtt.azure.gateway\h2
      • com.cirrus-link\com.cirruslink.mqtt.aws.gateway\h2
      • com.cirrus-link\com.cirruslink.mqtt.engine.gateway\h2
      • com.cirrus-link\com.cirruslink.mqtt.google.gateway\h2


If you are installed on Windows and unable to download or schedule a GWBK, our recommendation is:

  • Update to release 4.0.25 or newer
  • Change the location of the disk-backed history store and alarm config out of the ~yourIgnitionInstance\data\ directory
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