Restarting the Complex Metric Engine (CME)

When the topology is modified, you need to restart the CME for the changes to take effect.

About this task

To restart the CME, do the following:

Change to the Data Channel home directory. For example, /opt/datachannel.
Enter the following command to change to the bin directory:
```
cd bin
```
Run the following command (for example, channel 1). For a different channel, change the channel number.
```
dccmd -action stop -channel 1 -application cme
```
Run the following command to start the CME for channel 1:
```
dccmd -action start -channel 1 -application cme
```
Ensure that the CME is running:
```
dccmd -action status -channel 1 -application cme
```
Note: You can also use the ddcmd command with the bounce argument to stop and start the CME, as follows: dccmd -action bounce -channel 1 -application cme. Additionally, you can use a shorter version of the ddcmd command, as follows:
```
dccmd bounce cme.1 
```
For more information on using the dccmd command, invoke the
```
dccmd command with the -usage option.
```