Ambari Forum

NameNode host CPU utilization UNKNOWN for about an hour

  • #41026
    Anupam Gupta
    Participant

    I have successfully Installed HDP 1.3 on EC2 with 2 node(CentOs 6.3) cluster all services is running fine and ambari is installed and running, But I am getting three alert in one of the node.

    NameNode host CPU utilization UNKNOWN for about an hour
    Unable to contact host: ip-10-114-233-267.ec2.internal
    JobTracker CPU utilization UNKNOWN for about an hour
    Unable to contact host: ip-10-114-233-267.ec2.internal
    HBase Master CPU utilization UNKNOWN for about an hour
    Unable to contact host: ip-10-114-233-267.ec2.internal

    Is there any problem while installation and how critical this issue is ?
    How can I resolve this issue?
    Kindly help.

    Thanks In Advance,
    Anupam

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    Replies
  • #41029
    Jeff Sposetti
    Moderator

    Check if snmpd is running on your hosts. The Nagios check that checks CPU Utilization (for those components) uses snmp.

    #53971
    Ken Brumer
    Participant

    Also check if you are allowing UDP traffic thru on port 161.

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