Closed markokole closed 5 years ago
Hi @markokole , you'd have to check the ambari-server.log as to why this is happening. It's usually waiting for something and the deployment hasn't started yet (which is why you see a strange cluster layout that might not be the one you asked for and no packages have been installed in /usr/hdp).
The blueprint was accepted by Ambari but there might still be rare instances when the blueprint triggers a certain behaviour (like waiting for other nodes to join the cluster before the blueprint would be applied successfully).
In your variables I see at least 1 problem: multiple METRICS_COLLECTOR
. I've never seen such a blueprint so I don't know how Ambari would react. Anyway, don't believe multiple METRICS_COLLECTOR
is supported, so best to keep it on the ambari-server group.
Hi! @alexandruanghel
Regarding METRICS_COLLECTOR
: Ive moved it now, its only in the ambari-server group
.
The ambari-server.log is giving me this line constantly once the installation starts: INFO [pool-20-thread-1] ConfigureClusterTask:75 - Some host groups require more hosts, cluster configuration cannot begin
In Ambari, this is the operation name: Logical Request: Provision Cluster 'hdp-hdfs-only'
. This is where it is stuck.
Thanks for assistance!
Some more details from ambari-server.log
: The servers for Namenode and Datanode are mentioned here:
13 Dec 2018 14:50:25,677 INFO [pool-4-thread-1] HostRequest:147 - HostRequest: marking host request 2 for ip-10-0-0-60.ec2.internal as FAILED due to Some host groups require more hosts, cluster configuration cannot begin
13 Dec 2018 14:50:25,681 INFO [pool-4-thread-1] HostRequest:147 - HostRequest: marking host request 1 for ip-10-0-0-240.ec2.internal as FAILED due to Some host groups require more hosts, cluster configuration cannot begin
When I tried to manually install the cluster, I used the private DNS names and it worked, so this cannot be the problem?
Uh, it's a bug caused by https://github.com/hortonworks/ansible-hortonworks/blob/master/playbooks/roles/ambari-blueprint/templates/cluster_template.j2#L32
These playbooks build an Ansible group called ambari-server
hence why it's excluded in the cluster creation template: https://github.com/hortonworks/ansible-hortonworks/blob/master/playbooks/set_variables.yml#L63
But you also use a legitimate group called ambari-server
.
Will fix this soon.
Nice catch! :) I changed the name of Ambari server host group and now it's installing as it should.
Thanks for quick respond!
There's no need for those groups to be excluded anymore, it was something left from a previous version of that template, so I just removed them, should be good now: https://github.com/hortonworks/ansible-hortonworks/commit/1fbad844ceff3f0b143923b287d1937458e7f627
Im trying to install a HDP 2.6.5 on Centos 7 on AWS - I provision 3 servers - 1 Ambari, 1 Namenode and 1 Datanode with minimum services. These are
host_groups
in my ansible_hosts file:These are the services I define to each server:
The provisioning of the cluster goes well until the install components phase in apply_blueprint starts. I check in Ambari, HDFS has the green check, Zookeeper is not found (yellow icon with the question mark). There are no parameters in the Config tab under any of the services.
I tried to provision the HDP cluster manually: ran all ansible scripts until the
apply_blueprint
and then I installed the HDP manually from Ambari and it worked like a charm.There is no
hdp
folder in the servers designated as Namenodes or Datanodes. Ambari is up and running as it should.Is there anything I am missing? A certain service in my service configuration?