I'm trying to install Apache Apollo on CentOS, and I get the following:

```
sudo ${APOLLO_HOME}/bin/apollo create mybroker

Creating apollo instance at: mybroker
Generating ssl keystore...
java.io.IOException: Cannot run program "keytool" (in directory "mybroker/etc"): error=2, No such file or directory

```

I added keytool to my path, I can run keytool from the command line, but for some reason the Apollo installation can't find it. Any ideas?