Installing and running Service Locator in the Talend Runtime Container

Once the Service Locator feature configured to work in your Talend Runtime container(s), you can install and run it.

Procedure

Start the container:
- container/bin/trun.bat for Windows,
- container/bin/trun for Linux.
New files appear in the container/etc directory.

If you need to configure the Service Locator server, edit the configuration file named: org.talend.esb.locator.server.cfg.

The parameters available are the following:

tickTime=2000
initLimit=10
syncLimit=5
dataDir=${karaf.base}/zookeeper/data
clientPort=2181
maxClientCnxns = 0
authentication = false

Here is a description for each of the fields:

Field name	Description
tickTime	The basic time unit in milliseconds used by the Service Locator. It is used to do heartbeats, and the minimum session timeout will be twice the tickTime.
initLimit	The number of ticks that the initial synchronization phase can take.
syncLimit	The number of ticks that can pass between sending a request and getting an acknowledgment.
dataDir	The location to store the in-memory database snapshots and, unless specified otherwise, the transaction log of updates to the database.
clientPort	The port to listen for client connections.
maxClientCnxns	Number of client connection. Default is 10. 0 is unlimited.
authentication	To enable the authentication in the Service Locator server.

Now that you have configured the Service Locator, you can start it in the Talend Runtime Container. To do so, execute the following command at the console prompt: tesb:start-locator
To check that the service has been successfully started and is active, execute the console command: list | grep Locator
You should see an output similar to this:
```
ID      State     Blueprint  Spring   Level  Name
[ 211] [Active ] [Created ] [      ] [ 80]   Talend ESB :: Locator :: Server ()
```
To ensure that the feature is installed successfully, you can try examples that use the Service Locator server.

To uninstall and stop the Service Locator, execute the console command:
```
tesb:stop-locator
```

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