Solr Error Resulting From No Local Hostname Redirect

[#1]

Version

Cb Response 5.x

Issue

Solr is not able to communicate with datastore. This prevents data ingress.

Symptoms

Errors seen in /var/log/cb/solr/debug.log:

2016-08-03 11:41:16,858 - [ERROR] - from org.apache.solr.core.SolrCore in http-8080-15

java.net.UnknownHostException: <SERVERNAME>: SERVERNAME: Temporary failure in name resolution

        at java.net.InetAddress.getLocalHost(InetAddress.java:1496)

        at com.carbonblack.cbfs.common.CbDataStorageConfig.getServerName(CbDataStorageConfig.java:159)

        at com.carbonblack.cbfs.solr.FeedHitHandler.buildEvent(CbStorageEventHandlerFactory.java:136)

Cause

Hosts file edit was skipped during initial install. The installer adds this section to the hosts file:

# Added by Carbon Black Enterprise Server installation:

127.0.0.1 <SERVERNAME>

Solution

1. Add hostname to local redirect (127.0.0.1 for ipv4 and ::1 for ipv6) in hosts file

vi /etc/hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 <SERVERNAME>

::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

2. Restart services

service cb-enterprise stop (if it’s a cluster, use “/usr/share/cb/cbcluster stop”)

killall -KILL -u cb

service cb-enterprise start (if it’s a cluster, use “/usr/share/cb/cbcluster start”)