System Settings Reference
This section provides reference information for each of the AnzoGraph Basic system configuration settings. For instructions on changing settings, see Changing System Settings.
Note: AnzoGraph provides other Advanced configuration settings that are intended only for system administrators or users with an advanced level of knowledge about the AnzoGraph database, or databases in general. Details for setting these options are provided in the settings.conf file itself.
| Setting | Description | Default Value (Type) |
|---|---|---|
| enable_sparql_protocol | Specifies whether to enable the SPARQL HTTP protocol service. The sparql_protocol_port setting controls the port to use if this option is set to true. | true (boolean) |
| enable_ssl_protocol | Specifies whether to enable the secure SPARQL HTTPS service for SSL connections. The ssl_protocol_port setting controls the port to use. | true (boolean) |
| enable_persistence | Specifies whether to enable AnzoGraph's save data to disk option. | true (boolean) |
| internal_directory | The directory where AnzoGraph should save internal database's operational cache files. | Not set (char) The default directory for internal operational data is azg/internal. |
| max_memory | Specifies the amount of memory (in MB) available for AnzoGraph. (The default is system-based.) | System-based (int) |
| output_format | Specifies the default output format for AnzoGraph responses – xml, json, or csv. | xml (char) |
| persistence_directory | The directory where AnzoGraph should save data when it is persisted to disk. | Not set (char) The default directory for persisted data is azg/persistence. |
| sparql_protocol_port | Specifies the SPARQL service HTTP port to use if enable_sparql_protocol is set to true. | 7070 (int) |
| spill_directory | The directory where AnzoGraph should save temporary query files that spill to disk (usually SSD). Important: AnzoGraph uses O_DIRECT to read the spill files into the database. If you relocate the spill directory, make sure to place it on an ext4 file system that supports O_DIRECT. |
Not set (char) The default directory for spill files is azg/spill. |
| ssl_protocol_port | Specifies SPARQL service HTTPS port to use if enable_ssl_protocol is set to true. | 8256 (int) |
| startup_info | Specifies how verbose the startup message is: - 0-quiet, 1-ready, 2-ports, 3-more. | 1 (int) |
| stop_timeout | The number of seconds to wait for queries to finish before stopping the database with a -stop request. | 30 (int) |
| truncate_clob | Specifies whether to truncate large strings to the maximum string size (1 MB). | false (boolean) |
| use_custom_ssl_files | Specifies whether to use custom SSL files containing fully qualified domain names. | false (boolean) |
| user_queues | Sets the limit on the number of queries that can run concurrently. | 40 (int) |