Modification Methods

SQream provides two different ways to modify your configurations. The current method is based on hierarchical configuration as described above. This method is based on making modifications on the worker configuration file, while you can still make modifications using the previous method using the legacy configuration file, both described below:

Modifying Your Configuration Using the Worker Configuration File

You can modify your configuration using the worker configuration file (config.json). Changes that you make to worker configuration files are persistent. Note that you can only set the attributes in your worker configuration file before initializing your SQream worker, and while your worker is active these attributes are read-only.

The following is an example of a worker configuration file:

{
    "cluster": "/home/test_user/sqream_testing_temp/sqreamdb",
    "gpu":  0,
    "licensePath": "home/test_user/SQream/tests/license.enc",
    "machineIP": "127.0.0.1",
    "metadataServerIp": "127.0.0.1",
    "metadataServerPort": 3105,
    "port": 5000,
    "useConfigIP": true,
    "legacyConfigFilePath": "home/SQream_develop/SqrmRT/utils/json/legacy_congif.json"
}

You can access the legacy configuration file from the legacyConfigFilePath parameter shown above. If all (or most) of your workers require the same flag settings, you can set the legacyConfigFilePath attribute to the same legacy file.

Modifying Your Configuration Using a Legacy Configuration File

You can modify your configuration using a legacy configuration file.

The Legacy configuration file provides access to the read/write flags used in SQream’s previous configuration method. A link to this file is provided in the legacyConfigFilePath parameter in the worker configuration file.

The following is an example of the legacy configuration file:

{
   "developerMode": true,
   "reextentUse": false,
   "useClientLog": true,
   "useMetadataServer": false
}

For more information on using the previous configuration method, see Configuring SQream Using the Previous Configuration Method.