No interpreters available in Zeppelin

Question

I have just installed the following on my Mac (Yosemite 10.10.3):

• oracle java 1.8 update 45
• scala 2.11.6
• spark 1.4 (precompiled release: http://d3kbcqa49mib13.cloudfront.net/spark-1.4.0-bin-hadoop2.6.tgz)
• zeppelin from source (https://github.com/apache/incubator-zeppelin) no additional config, just copied created zeppelin-env.sh and zeppelin-site.xml from templates. no edits.

I Followed the installation guidelines: https://zeppelin.incubator.apache.org/docs/install/install.html

I have build zeppelin without problems:

mvn clean install -DskipTests

Started it

./bin/zeppelin-daemon.sh start

Opened http://localhost:8080 and opened the Tutorial Notebook. Here is what happens when I refresh the snippets:

Here is the exception for the md interpreter in the webapp logs:

ERROR [2015-06-19 11:44:37,410] ({WebSocketWorker-8} NotebookServer.java[runParagraph]:534) - Exception from run
org.apache.zeppelin.interpreter.InterpreterException: **Interpreter md not found**
    at org.apache.zeppelin.notebook.Note.run(Note.java:269)
    at org.apache.zeppelin.socket.NotebookServer.runParagraph(NotebookServer.java:531)
    at org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:119)
    at org.java_websocket.server.WebSocketServer.onWebsocketMessage(WebSocketServer.java:469)
    at org.java_websocket.WebSocketImpl.decodeFrames(WebSocketImpl.java:368)
    at org.java_websocket.WebSocketImpl.decode(WebSocketImpl.java:157)
    at org.java_websocket.server.WebSocketServer$WebSocketWorker.run(WebSocketServer.java:657)

Restarting the interpreter doesn't seem to cause errors.

Answer 1

Ok I have just found the answer, at the top of the tutorial there is a snippet about interpreter binding, click the save button and all start to work normally.