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Date: Wed, 17 Jul 2013 19:09:29 +0400
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Subject: Re: CouchDB on etop
From: Alexander Shorin <kxepal@gmail.com>
To: erlang@couchdb.apache.org
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Actually that was first thing what I'd done before made any attempts
to connect to Erlang node.
By instead of -name couchdb@127.0.0.1 I'd set -sname
'couchdb@localhost' - is there principal difference between them?
--
,,,^..^,,,


On Wed, Jul 17, 2013 at 1:20 PM, Robert Newson <rnewson@apache.org> wrote:
> CouchDB does not, by default, run as a distributed Erlang node, which
> explains the failure to connect (it's not listening).
>
> You can add '-name couchdb@127.0.0.1' or similar to the startup
> options to change that.
>
> B.
>
>
> On 17 July 2013 08:45, Alexander Shorin <kxepal@gmail.com> wrote:
>> Hi there,
>>
>> I just tried to run etop against CouchDB inspired by one G+ post that
>> provided shortcut script. I'd added -sname 'couchdb@localhost' (yes,
>> with single quotes around the node name) argument for CouchDB startup
>> and successfully located erlang cookie within couchdb user home dir
>> (/var/lib/couchdb for me).
>>
>> The result command to run etop was looked as:
>>
>> erl -name etop-`date +%s` -hidden -s etop -s erlang halt \
>>   -output text -node couchdb@127.0.0.1 -setcookie secret \
>>   -tracing off -sort msg_q -interval 5
>>
>> But it had failed with an error:
>>
>> Erlang R16B (erts-5.10.1) [source] [64-bit] [smp:4:4] [async-threads:10]
>>
>> Eshell V5.10.1  (abort with ^G)
>> (etop-1374045535@ashdarh.enlashor)1> Error Couldn't connect to node
>> 'couchdb@127.0.0.1'
>>
>> and CouchDB didn't log any error messages about unwelcome connections
>> from outside. I couldn't use couchdb@localhost for -node argument
>> since it produce invalid node name error. Using long node name also
>> was with no luck.
>>
>> Actually, I'd successfully solve my problem with entop[1] help, but
>> wonder why erl command ahd failed to connect? Probably, entop handles
>> connection right somewhere deep in sources and I feel the problem is
>> too trivial, but looks I'd missed something...
>>
>> [1]: https://github.com/mazenharake/entop
>>
>>
>> --
>> ,,,^..^,,,