accumulo-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mike Drob <>
Subject Re: Tunneling over SSH
Date Thu, 05 Sep 2013 23:33:12 GMT
There is some development going on as part of
to allow tservers to store the hostname instead of the ip address.
seems like a good place to start, although I'm not sure if this is the same
problem that you're seeing.



On Thu, Sep 5, 2013 at 7:14 PM, <> wrote:

> I'm trying to tunnel via SSH to a single Hadoop,Zoo, Accumulo stand-alone
> installation. The internal IP of the machine is on a local subnet behind a
> SSH-only firewall - I use static host names in all of the
> config files (Accumulo, Zoo, Hadoop) that resolve to for all
> the servers. There is no problem connecting when I'm directly connected to
> the subnet inside the firewall.
> However, when I try to connect via the JAVA API from outside the firewall,
> I get an error: Failed to find an available server in the list of servers:
> [ (120000)]. I've created a Windows Loopback
> interface that allows me to forward unlimited ports directly through the
> SSH tunnel to the internal network - there is no issue with connecting to
> Hadoop via Java or the web interface, and I can view the Accumuoo status
> page at 50095 by just setting my Windows box to resolve the hostname to the
> loopback local IP -> SSH ->
> I think the problem is that Zookeeper is telling my Java process to try
> and make a connection directly to If Zoo would use the
> hostname, there'd be no problem as it'd resolve to the loopback, and get
> tunneled along with everything else. But since it uses the actual IP, the
> Windows box won't route that back through the SSH tunnel as it considers it
> a local subnet outside of the firewall.
> Anyone experienced this issue and have a solution? I guess one solution
> might be to 'trick' Windows into forwarding the 192.168.x.y subnet back
> through the loopback (-> SSH), but I'm not seeing a good way to do that.
> Thanks

View raw message