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From Michael Dykman <mdyk...@gmail.com>
Subject Re: Can not connect with cqlsh to something different than localhost
Date Mon, 08 Dec 2014 18:30:32 GMT
The difference is what interface your service is listening on. What is the
output of

$ netstat -ntl | grep 9042

On Mon, 8 Dec 2014 07:21 Richard Snowden <richard.t.snowden@gmail.com>
wrote:

> I left listen_address blank - still I can't connect (connection refused).
>
> "cqlsh" -> OK
> "cqlsh ubuntu" -> fail ("ubuntu" is my hostname)
> "cqlsh 192.168.111.136" -> fail
>
> "telnet 192.168.111.136 9042" from outside the VM gives me a "connection
> refused".
>
> I just started a Tomcat in my VM and did a "telnet 192.168.111.136 8080"
> from outside the VM  - and got the expected result ("Connected to
> 192.168.111.136. Escape character is '^]'.
>
> So what's so special in Cassandra?
>
>
> On Mon, Dec 8, 2014 at 12:18 PM, Jonathan Haddad <jon@jonhaddad.com>
> wrote:
>
>> Listen address needs the actual address, not the interface.  This is best
>> accomplished by setting up proper hostnames for each machine (through DNS
>> or hosts file) and leaving listen_address blank, as it will pick the
>> external ip.  Otherwise, you'll need to set the listen address to the IP of
>> the machine you want on each machine.  I find the former to be less of a
>> pain to manage.
>>
>>
>> On Mon Dec 08 2014 at 2:49:55 AM Richard Snowden <
>> richard.t.snowden@gmail.com> wrote:
>>
>>> This did not work either. I changed /etc/cassandra.yaml and restarted Cassandra
(I even restarted the machine to make 100% sure).
>>>
>>> What I tried:
>>>
>>> 1) "listen_address: localhost"
>>>    -> connection OK (but of course I can't connect from outside the VM to
"localhost")
>>>
>>> 2) Set "listen_interface: eth0"
>>>    -> connection refused
>>>
>>> 3) Set "listen_address: 192.168.111.136"
>>>    -> connection refused
>>>
>>>
>>> What to do?
>>>
>>>
>>> > Try:
>>> > $ netstat -lnt
>>> > and see which interface port 9042 is listening on. You will likely need
to
>>> > update cassandra.yaml to change the interface. By default, Cassandra is
>>> > listening on localhost so your local cqlsh session works.
>>>
>>> > On Sun, 7 Dec 2014 23:44 Richard Snowden <richard.t.snowden@gmail.com>
>>> > wrote:
>>>
>>> > > I am running Cassandra 2.1.2 in an Ubuntu VM.
>>> > >
>>> > > "cqlsh" or "cqlsh localhost" works fine.
>>> > >
>>> > > But I can not connect from outside the VM (firewall, etc. disabled).
>>> > >
>>> > > Even when I do "cqlsh 192.168.111.136" in my VM I get connection refused.
>>> > > This is strange because when I check my network config I can see that
>>> > > 192.168.111.136 is my IP:
>>> > >
>>> > > root@ubuntu:~# ifconfig
>>> > >
>>> > > eth0      Link encap:Ethernet  HWaddr 00:0c:29:02:e0:de
>>> > >           inet addr:192.168.111.136  Bcast:192.168.111.255
>>> > > Mask:255.255.255.0
>>> > >           inet6 addr: fe80::20c:29ff:fe02:e0de/64 Scope:Link
>>> > >           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>> > >           RX packets:16042 errors:0 dropped:0 overruns:0 frame:0
>>> > >           TX packets:8638 errors:0 dropped:0 overruns:0 carrier:0
>>> > >           collisions:0 txqueuelen:1000
>>> > >           RX bytes:21307125 (21.3 MB)  TX bytes:709471 (709.4 KB)
>>> > >
>>> > > lo        Link encap:Local Loopback
>>> > >           inet addr:127.0.0.1  Mask:255.0.0.0
>>> > >           inet6 addr: ::1/128 Scope:Host
>>> > >           UP LOOPBACK RUNNING  MTU:65536  Metric:1
>>> > >           RX packets:550 errors:0 dropped:0 overruns:0 frame:0
>>> > >           TX packets:550 errors:0 dropped:0 overruns:0 carrier:0
>>> > >           collisions:0 txqueuelen:0
>>> > >           RX bytes:148053 (148.0 KB)  TX bytes:148053 (148.0 KB)
>>> > >
>>> > >
>>> > > root@ubuntu:~# cqlsh 192.168.111.136 9042
>>> > > Connection error: ('Unable to connect to any servers', {'192.168.111.136':
>>> > > error(111, "Tried connecting to [('192.168.111.136', 9042)]. Last error:
>>> > > Connection refused")})
>>> > >
>>> > >
>>> > > What to do?
>>> > >
>>>
>>>
>

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