000031534 - Error message "No data from ZK will be returned" on an RSA Security Analytics Warehouse (SAW) node

Document created by RSA Customer Support Employee on Jun 14, 2016Last modified by RSA Customer Support Employee on Apr 21, 2017
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Article Number000031534
Applies ToRSA Product Set: Security Analytics
RSA Product/Service Type: MapR Warehouse (SAW)
RSA Version/Condition: 10.4.x, 10.5.x
Platform: CentOS
O/S Version: EL6
IssueThe error message below is logged on a SAW node.
2015-10-12 13:29:56,966 ERROR com.mapr.warden.WardenManager connect [main]: Could not connect to ZK within: 30000 ms. Check if ZK connection defined correctly: saw1:5181,saw2:5181,saw3:5181. No data from ZK will be returned.
CauseIt is necessary to have more than half of the zookeeper nodes running.
ResolutionTo resolve the issue, follow the steps below.
  1. Check the qstatus of the nodes using the command below.
    [root@rsa-saw-002 ~]# /etc/init.d/mapr-zookeeper qstatus
    JMX enabled by default
    Using config: /opt/mapr/zookeeper/zookeeper-3.4.5/conf/zoo.cfg
    Mode: leader

  2. If the zookeeper nodes are not running but warden is:
    1. Stop the warden service on all nodes with the command below.
      /etc/init.d/mapr-warden stop

    2. Start the zookeeper service on all nodes with the command below.
      /etc/init.d/mapr-zookeeper restart

If you are unsure of any of the steps above or experience any issues, contact RSA Support and quote this article number for further assistance.