File System Configuration
You can use the configuration parameters in create_config.py to configure the MATRIXX Engine directories. These directories hold data required for system configuration, runtime processing, and recovery operations.
File System Configuration Parameters lists the information required to configure the MATRIXX Engine file system.
For more information about the MATRIXX environment variables, see the discussion about container directories and environment variables in MATRIXX Installation and Upgrade.
| Parameter | Description | Default Value |
|---|---|---|
| Install Directory | The directory where binaries, libraries, data files, configuration files, and supporting programs are installed. The file path is defined as the ${MTX_DIR} environment variable in the .mtx_bashrc file. | /opt/mtx |
| Transaction Log Directory | The directory where transaction logs and
shadow transaction logs are saved on the processing server SSDs and where
transaction logs and checkpoint files and MATRIXX Event Files (MEFs) are saved on
the publishing server SSD. The publishing server also moves MEFs to an Event
Loader input file on its local SSD. The file path is defined as the
${MTX_TXN_LOG_DIR} environment variable in the
.mtx_bashrc file. create_config.info question: Do you want to use the default transaction log directory (y/n)? Important: Answer
n to the question and enter the directory identified in the /etc/fstab file, for example,
/mnt/mtx/txn_logs. All servers should be configured to use the same partition. See the discussion about configuring storage
devices for more information. |
/var/log/mtx |
| Shared Archive Directory | The partition on the shared storage that is configured as the shared archive directory for the publishing servers. This is where replayed
transaction log files and checkpoints are saved. If MEF publishing is not enabled, MEFs are saved here also. create_config.info question: Do you want to use the default directory for archiving transaction log files and checkpoints (y/n)? The default directory is /var/log/mtx/shared. Important: Answer
n to the question and enter the directory identified in the /etc/fstab file, for example,
/mnt/mtx/shared. All servers should be configured to use the same partition. See the discussion about configuring engine storage
devices for more information. |
y |
| System Log Directory | The directory where system logs are saved. The file path is defined as the ${MTX_LOG_DIR} environment variable in the .mtx_bashrc file. | /var/log/mtx |
| Core File Directory | The directory where core files are saved if a server stops unexpectedly. | /var/lib/systemd/coredump |
| Process ID (PID) File Directory | The directory where the MATRIXX Engine writes files that indicate the ID of the MATRIXX processes currently running. | /var/run/mtx |
| RPM Directory | The directory where MATRIXX RPM files are stored. | /var/mtx |
| Work File Directory | The directory where files required for a running instance of the MATRIXX Engine are stored. | /var/mtx |
| Monitor Local Disk Space | You can configure the low disk space threshold for monitoring. The threshold can be a
percentage of the total disk space or it can be an absolute
value in megabytes. If only one of the following properties is
configured and the threshold is less than the configured value,
an error is logged. If both properties are configured and the
threshold is less than the values for both properties, an error
is logged. Enter zero (0) for both values to disable threshold
monitoring. create_config.info question: What is the minimum free local disk space threshold in percent? create_config.info question: What is the minimum free local disk space threshold in MB? |
10% or 10GB |