Accrual to Clinical Trials
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Purpose

 

The Patient List Viewer invokes the at commands to place jobs in the background. This frees up the UI while long queries are running.

at command

Some Linux systems do not have the at command installed.

ATD service

 

The ATD service is installed along with the at command. This service is required to be running for the at command to work

Install at by using your package manager. For example, if you are using yum as a package manager, type in:

yum install at

To start the ATD services on newer systems, type in:

systemctl start atd

For older systems type in:

/etc/init.d/atd start

Auto Start on Reboot

Follow your system admin procedures to make sure the ATD service starts up automatically on system boot.

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