How can i convert below DataFrame array to string

Hi All, How can i convert below DataFrame [accountID: array, completed_at: array, created_at: array] to [accountID: string, completed_at: string, created_at: string] root |-- accountID: array (nullable = true) ||-- element: string (containsNull = true) |-- completed_at: array (nullable

"spark ui" button in spark interpreter does not show Spark web-ui

Hi, We used 0.7.1-snapshot with our Mesos cluster, almost all our needed features (ldap login, notebook acl control, livy/pyspark/rspark/scala, etc.) work pretty well. But one thing does not work for us is the 'spark ui' button does not response to user clicks. No errors in browser side. Anyone

Re: "spark ui" button in spark interpreter does not show Spark web-ui

Hi, I have noticed the same problem Regards, Meethu Mathew On Mon, Mar 13, 2017 at 9:56 AM, Xiaohui Liu wrote: > Hi, > > We used 0.7.1-snapshot with our Mesos cluster, almost all our needed > features (ldap login, notebook acl control, livy/pyspark/rspark/scala, > etc.) work pretty well. > >