Github user onkarshedge commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/873#issuecomment-217352893 Ohh, I get it. I was adding new NotebookRepos in zeppelin-site.xml this way. So I was getting only one Notebookrepo and wrote the code in PR to combine them in a single string. <property> <name>zeppelin.notebook.storage</name> <value>org.apache.zeppelin.notebook.repo.IPFSNotebookRepo</value> <description>some new notebookrepo experiments </description> </property> <property> <name>zeppelin.notebook.storage</name> <value>org.apache.zeppelin.notebook.repo.VFSNotebookRepo</value> <description>notebook persistence layer implementation</description> </property> ```allvalues = "org.apache.zeppelin.notebook.repo.VFSNotebookRepo,org.apache.zeppelin.notebook.repo.IPFSNotebookRepo,"``` We have to give the values(notebook.storage class names) in zeppelin-site.xml comma separated there itself. <property> <name>zeppelin.notebook.storage</name> <value>org.apache.zeppelin.notebook.repo.VFSNotebookRepo,org.apache.zeppelin.notebook.repo.IPFSNotebookRepo</value> <description>notebook persistence layer implementation</description> </property> I am really sorry @bzz
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