I have a couple of jobs still running in Zeppelin after several days. Cancelling the jobs in Zeppelin has no effect. I've stopped all services, restarted ambari and even rebooted the servers and the jobs won't go away. Is there a way to kill these jobs? Thanks! ... View more

I'm trying to run the zeppelin notebook for Data Science with Hadoop: Predicting Airline Delays – Part 2. In the first paragraph I'm getting the java errors below - I assume that I'm not importing a class that I need but any help is greatly appreciated! =============================================================================================== import org.apache.spark.rdd._ import scala.collection.JavaConverters._ import au.com.bytecode.opencsv.CSVReader import java.io._ import org.joda.time._ import org.joda.time.format._ <console>:44: error: not found: type DateTime val sampleDate = new DateTime(year, month, day, 0, 0) ^ <console>:47: error: not found: value DateTimeFormat val holiday = DateTimeFormat.forPattern("MM/dd/yyyy").parseDateTime(c) ^ <console>:48: error: not found: value Days val distance = Math.abs(Days.daysBetween(holiday, sampleDate).getDays) ... View more

When I login I automatically to go step 7 of the add service wizard. All nodes are at 33% "Install Complete (waiting to start)" and the details say "Ambari server did not schedule any tasks on the host. Either the service component on the host is already in installed state OR the pre-check of host reachability failed." I've tried restarting ambari-server with the same results. How can I get out of this loop? Thanks! ... View more

I have a 3 node cluster on ec2, the nodes are successfully networked together and communicating. when I go through the steps to get passwordless ssh set up, I'm getting the failure of "Permission denied (publickey)". I'm issuing the ssh-keygen as root - and that executes fine, but then I get the above failure. Am I supposed to take the key I'm using in Putty and ftp that up to the server? I'm confused. The steps work fine when I'm using virtual images on my computer, but not in ec2. Thanks! ... View more

I've install ambari on a Ubuntu server in ec2. Ambari starts fine, but I can't get to ambari from my laptop, it just times out. I want to run the browser from my laptop instead of running the browser on the Ubuntu server. Thanks in advance! ... View more