[jira] [Created] (AMQ-6028) DNS search domain is dropped from when looking up failover

["Henrik (JIRA)" <ji...@apache.org>]

Henrik created AMQ-6028:
---------------------------

             Summary: DNS search domain is dropped from when looking up failover
                 Key: AMQ-6028
                 URL: https://issues.apache.org/jira/browse/AMQ-6028
             Project: ActiveMQ
          Issue Type: Bug
          Components: Connector, Transport
    Affects Versions: 5.12.1
         Environment: Linux
            Reporter: Henrik


We have a setup with a network of two brokers.  They're running on *broker1.foo.bar.com* and *broker2.foo.bar.com*.  

We have a producer on *producer.bar.com* which would not failover when one of the brokers went down.  We're using {{failover:(tcp://broker1.foo.bar.com:7250,tcp://broker2.foo.bar.com:7250)}} as the connect string.

We couldn't figure out why until we enabled debug logging:
{noformat}
[DEBUG] [2015-10-29T11:37:15,063] [ActiveMQ Task-4] Attempting  0th  connect to: tcp://broker1:7250  [FailoverTransport]
[DEBUG] [2015-10-29T11:37:15,068] [ActiveMQ Task-4] Connect fail to: tcp://broker1:7250, reason: java.net.UnknownHostException: broker1  [FailoverTransport]
{noformat}
(off topic: why is there only debug logging on failing attempts when there is info logging on successful attempts?)

Since the brokers are on *foo.bar.com*, and the producer is on *bar.com*, a hostname-only lookup fails.

Our workaround as to add *foo.bar.com* to the DNS search domain on *producer.bar.com*. (Either in /etc/resolv.conf or as a LOCALDOMAIN environment variable)



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