Skip to main content

Linux

By default, the Netwrix Change Tracker database resides on the /var/lib/mongo path. A typical installation looks like the following:

cd /var/lib/mongo

ls

journal mongod.lock NNTHubService.2 NNTHubService.5 NNTHubService.ns

local.0 NNTHubService.0 NNTHubService.3 NNTHubService.6

local.ns NNTHubService.1 NNTHubService.4 NNTHubService.7

The minimum requirement for Netwrix Change Tracker implementation is 10GB free space for the volume supporting /var/lib.

Modify database storage path before installing Change Tracker​

If you prefer to write database files to a different path or volume, use the following procedure instead of the standard nnthubservice.rpm installer package.

You can install mongo first and change the dbpath parameter before installing the rest of the system. Set this up as early as possible to prevent mongo from creating large files.

yum install mongodb-org

This installs just mongo. At that point, you can tweak the parameters as needed before proceeding with the rest of the installation. First, stop any mongo processes:

service mongod stop

Create the folder to move the data to:

mkdir -p /opt/mongod/data

Then edit the mongod config file.

vi /etc/mongod.conf

and look for the entry:

dbpath=/var/lib/mongo

and change it to:

dbpath=/opt/mongod/data

Finally, restart the database using:

service mongod start

Modify the database storage path after installing the product​

tip

If SELinux is enabled, copy the directory that the installer creates to the new location. The following copy command example preserves the SELinux labeling in the copied directory.

cp -avr /var/lib/mongo/ /secondpartition/

Stop the hub and mongo services:

service nnthubservice stop

service mongod stop

Create the folder to move the data to:

mkdir -p /opt/mongod/data

Move the data files into the new folder:

cd /opt/mongod/data/

mv /var/lib/mongo/*

Remove the old folder:

rmdir /var/lib/mongo

Change the config to point to the new folder:

vi /etc/mongod.conf

Then look for the entry:

dbpath=/var/lib/mongo

And change it to:

dbpath=/opt/mongod/data

Restart mongo and the hub:

service mongod start

service nnhubservice start

You can also configure mongo to use smaller files on disk-space-constrained systems by adding a parameter to the mongod.conf file:

smallfiles=true