Storing Custom Libraries for Cloudera Manager

To store custom stage libraries for a Cloudera Manager installation, perform the following steps:

On every node that runs Data Collector, create a local directory for the custom stage libraries.
For example, you might create the custom stage library directory at:
```
/opt/sdc-user-libs
```
On every node that runs Data Collector, copy the custom stage libraries to the directory defined for the USER_LIBRARIES_DIR environment variable. Use a unique subfolder for each custom stage.
For example to store libraries for a custom stage named customstage1, you would copy them to the following directory:
```
/opt/sdc-user-libs/customstage1
```
In Cloudera Manager, select the StreamSets service and then click Configuration.
On the Configuration page, in the Data Collector Advanced Configuration Snippet (Safety Valve) for sdc-env.sh field, add the USER_LIBRARIES_DIR environment variable and point it to the custom stage library directory, as follows:
```
export USER_LIBRARIES_DIR="<custom stage library directory>"
```
For example:
```
export USER_LIBRARIES_DIR="/opt/sdc-user-libs/"
```
When using the Java Security Manager, which is enabled by default, update the Data Collector Advanced Configuration Snippet (Safety Valve) for sdc-security.policy property to include the custom stage library directory as follows:
```
// custom stage library directory
grant codebase "file://<custom stage library directory>/-" {
   permission java.security.AllPermission;
};
```
For example:
```
// custom stage library directory
grant codebase "file:///opt/sdc-user-libs/-" {
   permission java.security.AllPermission;
};
```
Restart Data Collector.