Apache Zeppelin Configuration

Zeppelin Properties

There are two locations you can configure Apache Zeppelin.

  • Environment variables can be defined conf/zeppelin-env.sh(conf\zeppelin-env.cmd for Windows).
  • Java properties can ba defined in conf/zeppelin-site.xml.

If both are defined, then the environment variables will take priority.

Mouse hover on each property and click then you can get a link for that.

zeppelin-env.sh zeppelin-site.xml Default value Description
ZEPPELIN_PORT
zeppelin.server.port
8080 Zeppelin server port
ZEPPELIN_SSL_PORT
zeppelin.server.ssl.port
8443 Zeppelin Server ssl port (used when ssl environment/property is set to true)
ZEPPELIN_MEM
N/A -Xmx1024m -XX:MaxPermSize=512m JVM mem options
ZEPPELIN_INTP_MEM
N/A ZEPPELIN_MEM JVM mem options for interpreter process
ZEPPELIN_JAVA_OPTS
N/A JVM options
ZEPPELIN_ALLOWED_ORIGINS
zeppelin.server.allowed.origins
* Enables a way to specify a ',' separated list of allowed origins for REST and websockets.
e.g. http://localhost:8080
N/A
zeppelin.anonymous.allowed
true The anonymous user is allowed by default.
ZEPPELIN_SERVER_CONTEXT_PATH
zeppelin.server.context.path
/ Context path of the web application
ZEPPELIN_SSL
zeppelin.ssl
false
ZEPPELIN_SSL_CLIENT_AUTH
zeppelin.ssl.client.auth
false
ZEPPELIN_SSL_KEYSTORE_PATH
zeppelin.ssl.keystore.path
keystore
ZEPPELIN_SSL_KEYSTORE_TYPE
zeppelin.ssl.keystore.type
JKS
ZEPPELIN_SSL_KEYSTORE_PASSWORD
zeppelin.ssl.keystore.password
ZEPPELIN_SSL_KEY_MANAGER_PASSWORD
zeppelin.ssl.key.manager.password
ZEPPELIN_SSL_TRUSTSTORE_PATH
zeppelin.ssl.truststore.path
ZEPPELIN_SSL_TRUSTSTORE_TYPE
zeppelin.ssl.truststore.type
ZEPPELIN_SSL_TRUSTSTORE_PASSWORD
zeppelin.ssl.truststore.password
ZEPPELIN_NOTEBOOK_HOMESCREEN
zeppelin.notebook.homescreen
Display note IDs on the Apache Zeppelin homescreen
e.g. 2A94M5J1Z
ZEPPELIN_NOTEBOOK_HOMESCREEN_HIDE
zeppelin.notebook.homescreen.hide
false Hide the note ID set by ZEPPELIN_NOTEBOOK_HOMESCREEN on the Apache Zeppelin homescreen.
For the further information, please read Customize your Zeppelin homepage.
ZEPPELIN_WAR_TEMPDIR
zeppelin.war.tempdir
webapps Location of the jetty temporary directory
ZEPPELIN_NOTEBOOK_DIR
zeppelin.notebook.dir
notebook The root directory where notebook directories are saved
ZEPPELIN_NOTEBOOK_S3_BUCKET
zeppelin.notebook.s3.bucket
zeppelin S3 Bucket where notebook files will be saved
ZEPPELIN_NOTEBOOK_S3_USER
zeppelin.notebook.s3.user
user User name of an S3 bucket
e.g. bucket/user/notebook/2A94M5J1Z/note.json
ZEPPELIN_NOTEBOOK_S3_ENDPOINT
zeppelin.notebook.s3.endpoint
s3.amazonaws.com Endpoint for the bucket
ZEPPELIN_NOTEBOOK_S3_KMS_KEY_ID
zeppelin.notebook.s3.kmsKeyID
AWS KMS Key ID to use for encrypting data in S3 (optional)
ZEPPELIN_NOTEBOOK_S3_EMP
zeppelin.notebook.s3.encryptionMaterialsProvider
Class name of a custom S3 encryption materials provider implementation to use for encrypting data in S3 (optional)
ZEPPELIN_NOTEBOOK_S3_SSE
zeppelin.notebook.s3.sse
false Save notebooks to S3 with server-side encryption enabled
ZEPPELIN_NOTEBOOK_AZURE_CONNECTION_STRING
zeppelin.notebook.azure.connectionString
The Azure storage account connection string
e.g.
DefaultEndpointsProtocol=https;
AccountName=<accountName>;
AccountKey=<accountKey>
ZEPPELIN_NOTEBOOK_AZURE_SHARE
zeppelin.notebook.azure.share
zeppelin Azure Share where the notebook files will be saved
ZEPPELIN_NOTEBOOK_AZURE_USER
zeppelin.notebook.azure.user
user Optional user name of an Azure file share
e.g. share/user/notebook/2A94M5J1Z/note.json
ZEPPELIN_NOTEBOOK_STORAGE
zeppelin.notebook.storage
org.apache.zeppelin.notebook.repo.GitNotebookRepo Comma separated list of notebook storage locations
ZEPPELIN_NOTEBOOK_ONE_WAY_SYNC
zeppelin.notebook.one.way.sync
false If there are multiple notebook storage locations, should we treat the first one as the only source of truth?
ZEPPELIN_NOTEBOOK_PUBLIC
zeppelin.notebook.public
true Make notebook public (set only owners) by default when created/imported. If set to false will add user to readers and writers as well, making it private and invisible to other users unless permissions are granted.
ZEPPELIN_INTERPRETERS
zeppelin.interpreters
org.apache.zeppelin.spark.SparkInterpreter,
org.apache.zeppelin.spark.PySparkInterpreter,
org.apache.zeppelin.spark.SparkSqlInterpreter,
org.apache.zeppelin.spark.DepInterpreter,
org.apache.zeppelin.markdown.Markdown,
org.apache.zeppelin.shell.ShellInterpreter,
...
Comma separated interpreter configurations [Class]

NOTE: This property is deprecated since Zeppelin-0.6.0 and will not be supported from Zeppelin-0.7.0.
ZEPPELIN_INTERPRETER_DIR
zeppelin.interpreter.dir
interpreter Interpreter directory
ZEPPELIN_INTERPRETER_OUTPUT_LIMIT
zeppelin.interpreter.output.limit
102400 Output message from interpreter exceeding the limit will be truncated
ZEPPELIN_INTERPRETER_CONNECT_TIMEOUT
zeppelin.interpreter.connect.timeout
30000 Output message from interpreter exceeding the limit will be truncated
ZEPPELIN_WEBSOCKET_MAX_TEXT_MESSAGE_SIZE
zeppelin.websocket.max.text.message.size
1024000 Size(in characters) of the maximum text message that can be received by websocket.
ZEPPELIN_SERVER_DEFAULT_DIR_ALLOWED
zeppelin.server.default.dir.allowed
false Enable directory listings on server.

SSL Configuration

Enabling SSL requires a few configuration changes. First, you need to create certificates and then update necessary configurations to enable server side SSL and/or client side certificate authentication.

Creating and configuring the Certificates

Information how about to generate certificates and a keystore can be found here.

A condensed example can be found in the top answer to this StackOverflow post.

The keystore holds the private key and certificate on the server end. The trustore holds the trusted client certificates. Be sure that the path and password for these two stores are correctly configured in the password fields below. They can be obfuscated using the Jetty password tool. After Maven pulls in all the dependency to build Zeppelin, one of the Jetty jars contain the Password tool. Invoke this command from the Zeppelin home build directory with the appropriate version, user, and password.

java -cp ./zeppelin-server/target/lib/jetty-all-server-<version>.jar org.eclipse.jetty.util.security.Password <user> <password>

If you are using a self-signed, a certificate signed by an untrusted CA, or if client authentication is enabled, then the client must have a browser create exceptions for both the normal HTTPS port and WebSocket port. This can by done by trying to establish an HTTPS connection to both ports in a browser (e.g. if the ports are 443 and 8443, then visit https://127.0.0.1:443 and https://127.0.0.1:8443). This step can be skipped if the server certificate is signed by a trusted CA and client auth is disabled.

Configuring server side SSL

The following properties needs to be updated in the zeppelin-site.xml in order to enable server side SSL.

<property>
  <name>zeppelin.server.ssl.port</name>
  <value>8443</value>
  <description>Server ssl port. (used when ssl property is set to true)</description>
</property>

<property>
  <name>zeppelin.ssl</name>
  <value>true</value>
  <description>Should SSL be used by the servers?</description>
</property>

<property>
  <name>zeppelin.ssl.keystore.path</name>
  <value>keystore</value>
  <description>Path to keystore relative to Zeppelin configuration directory</description>
</property>

<property>
  <name>zeppelin.ssl.keystore.type</name>
  <value>JKS</value>
  <description>The format of the given keystore (e.g. JKS or PKCS12)</description>
</property>

<property>
  <name>zeppelin.ssl.keystore.password</name>
  <value>change me</value>
  <description>Keystore password. Can be obfuscated by the Jetty Password tool</description>
</property>

<property>
  <name>zeppelin.ssl.key.manager.password</name>
  <value>change me</value>
  <description>Key Manager password. Defaults to keystore password. Can be obfuscated.</description>
</property>

Enabling client side certificate authentication

The following properties needs to be updated in the zeppelin-site.xml in order to enable client side certificate authentication.

<property>
  <name>zeppelin.server.ssl.port</name>
  <value>8443</value>
  <description>Server ssl port. (used when ssl property is set to true)</description>
</property>

<property>
  <name>zeppelin.ssl.client.auth</name>
  <value>true</value>
  <description>Should client authentication be used for SSL connections?</description>
</property>

<property>
  <name>zeppelin.ssl.truststore.path</name>
  <value>truststore</value>
  <description>Path to truststore relative to Zeppelin configuration directory. Defaults to the keystore path</description>
</property>

<property>
  <name>zeppelin.ssl.truststore.type</name>
  <value>JKS</value>
  <description>The format of the given truststore (e.g. JKS or PKCS12). Defaults to the same type as the keystore type</description>
</property>

<property>
  <name>zeppelin.ssl.truststore.password</name>
  <value>change me</value>
  <description>Truststore password. Can be obfuscated by the Jetty Password tool. Defaults to the keystore password</description>
</property>

Obfuscating Passwords using the Jetty Password Tool

Security best practices advise to not use plain text passwords and Jetty provides a password tool to help obfuscating the passwords used to access the KeyStore and TrustStore.

The Password tool documentation can be found here.

After using the tool:

java -cp $ZEPPELIN_HOME/zeppelin-server/target/lib/jetty-util-9.2.15.v20160210.jar \
         org.eclipse.jetty.util.security.Password  \
         password

2016-12-15 10:46:47.931:INFO::main: Logging initialized @101ms
password
OBF:1v2j1uum1xtv1zej1zer1xtn1uvk1v1v
MD5:5f4dcc3b5aa765d61d8327deb882cf99

update your configuration with the obfuscated password :

<property>
  <name>zeppelin.ssl.keystore.password</name>
  <value>OBF:1v2j1uum1xtv1zej1zer1xtn1uvk1v1v</value>
  <description>Keystore password. Can be obfuscated by the Jetty Password tool</description>
</property>

Note: After updating these configurations, Zeppelin server needs to be restarted.