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From Keith Turner <>
Subject Re: Accumulo init over existing instance
Date Tue, 08 Oct 2013 22:14:28 GMT
On Tue, Oct 8, 2013 at 6:07 PM, John Vines <> wrote:

> Like Jared said, wiping /accumulo out of hdfs is all you need to do.
> But Accumulo still uses IP addresses internally, so I'm not quite certain
> you're going to achieve what you set out for.

Until 1.6.0 w/ ACCUMULO-1585

> On Tue, Oct 8, 2013 at 5:32 PM, Terry P. <> wrote:
>> So reverse DNS wasn't working when I deployed my new cluster, thus all my
>> Tablet Servers were showing up in the Monitor as IP addresses (even though
>> all configuration files had hostnames only).  Lesson learned: trust, but
>> verify (and ensure your hardened base servers still have nslookup and/or
>> dig on them).
>> Now that DNS is fixed, I want to wipe everything clean and re-init
>> Accumulo to ensure everything is legit using hostnames to ensure the
>> cluster is not tied to IP addresses.
>> I know I need to do a new 'accumulo init' -- I'll pass in the same
>> instance name, and my understanding is that will overwrite everything
>> currently in Zookeeper.
>> My question is: is there anything else I could/should do first to "clean
>> up" from this botched instance?  E.g. should I delete all files in HDFS,
>> the write-ahead logs on the Tablet Servers, etc.?  I'm running Accumulo
>> 1.4.2.
>> Thanks,
>> Terry

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