The storage plug-in configuration screen identifies when a plug-in fails to initializes (eg the Hive server is down) and will leave the plug-in disabled (or fail to creat it altogether). However, if a configured storage plug-in is not on line when the drill-bit is launched, all attempts at interactive queries (via sqlline or ODBC) fail to proceed. The impression left with the user is that the drill-bit is completely off-line.
1. configure Hive storage plug-in and execute simple queries
2. shut down drill-bit
3. shut down Hive server
4. re-launch the drill-bit
5. launch sqlline
... no connection will be established, no queries will be possible