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From Josh Elser <>
Subject Re: How to get pre-ACCUMULO-1585 behaviour (use IPs, not hostnames)
Date Sun, 06 Sep 2015 06:06:11 GMT
FYI, there is reasoning behind doing this in respect to the larger 
Hadoop community. When you run with Kerberos, things will not work at 
all without proper hostnames. There are lots of cases where dealing with 
hostnames is easier than IPs (e.g. what happens if the physical host you 
run the namenode on dies and you need to transition it to a different 
node -- IPs make this much more difficult).

That said, if there is something we can do that will make this easier 
for your situation, let's give it some thought. I don't think I realized 
that things were actually broken with IPs, just that we strongly 
recommend using hostnames instead.

Denis wrote:
> I found the answer in the sources: start the daemons with "--address
> 10.x.x.x" command line switch.
> I am trying to install Accumulo 1.7 (I have experience with early
> versions) and found if inconvenient the Accumulo now requires
> hostnames;
> I do not like the idea to maintain the configuration of a DNS-server
> (or hostname-IP correspondence in /etc/hosts of all the servers on all
> the servers)
> On 9/5/15, Josh Elser<>  wrote:
>> I'm not entirely sure if I understand your question. Are you running
>> Accumulo 1.5 and having problems running Accumulo w/ only IP addresses?
>> It's not readily apparent to me what changes were actually made in the
>> tickets as it appears JIRA didn't pick up the commit reference.
>> For as long as I can remember, the network interface (e.g.,
>> localhost, `hostname -a`, `hostname -f`) you provide in
>> ${ACCUMULO_CONF_DIR}/{masters,monitors,slaves,gc,tracers} should
>> ultimately determine what is advertised in ZooKeeper. Maybe that's the
>> change Eric made...
>> Denis wrote:
>>> Hello
>>> What would be the recommended way to win the pre-ACCUMULO-1585
>>> behavior, i.e IPs of services in ZooKeeper and no need for DNS not
>>> reverse DNS?

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