About jspeidel

jspeidel · ‎01-07-2016

With Ambari 1.7.0, all hosts must be registered prior to submitting a blueprint cluster creation request. If the necessary hosts aren't available in 1.7.0, the request will immediately fail and indicate to the user that the necessary hosts aren't available. In more recent Ambari versions, it is possible to submit a cluster create request prior to any hosts being available and until "the minimal required hosts" become available, you are correct that the request state will remain "PENDING".

jspeidel · ‎01-07-2016

Can you please confirm that you are deploying the cluster using the blueprint API and not the lower level 'primitive' API's? I see that this is for a rather old version "1.7.0", which was one of the first versions to support blueprint installs. I don't remember ever seeing this error with 1.7.0 BP installs so you will need to attach the ambari server log as well as confirm the API calls that resulted in this issue.

jspeidel · ‎01-05-2016

@Dhruv Kumar It looks like you have oozie HA configured incorrectly. From the ambari server log: 05 Jan 2016 02:13:40,471 ERROR [pool-2-thread-1] TopologyManager:553 - TopologyManager.ConfigureClusterTask: An exception occurred while attempting to process cluster configs and set on cluster: java.lang.IllegalArgumentException: Unable to update configuration property 'oozie.base.url' with topology information. Component 'OOZIE_SERVER' is mapped to an invalid number of hosts '2'. Looking at the config processor code, it determines whether oozie HA is enabled by looking at the property oozie-site/oozie.services.ext To enable Oozie HA the property must be specified and must contain the following in it's value org.apache.oozie.service.ZKLocksService Because HA isn't properly configured, configuration processing fails because for non-HA environments, OOZIE_SERVER can only be mapped to a single host. For Ambari Blueprint HA support please refer to: Ambari Blueprint HA support

jspeidel · ‎01-05-2016

@Dhruv Kumar Ah, I see it now. Thanks.

jspeidel · ‎01-05-2016

@Dhruv Kumar Please provide the entire blueprint and cluster creation template so we can reproduce/debug.

jspeidel · ‎10-02-2015

I am really interested in hearing why the customer doesn't want to use blueprints. Using the low level api's directly to provision a cluster is very hard to get right, that is one of the primary reasons that the higher level blueprint api was introduced.

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