adding incorrect IPs for Remote Cluster require more graceful errors

when I try to set wrong IP, for instance 172.23.105.1593 I get

Attention - Error {nxdomain, [{lhttpc_client,send_request,1, [

{file, "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/lhttpc/lhttpc_client.erl"}, {line,199}]}, {lhttpc_client,execute,9, [{file, "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/lhttpc/lhttpc_client.erl"}

,

{line,151}

]}, {lhttpc_client,request,9, [

{file, "/home/buildbot/centos-5-x64-300-builder/build/build/couchdb/src/lhttpc/lhttpc_client.erl"}

,

{line,83}

]}]} happened during REST call get to http://172.23.105.1593:8091/pools.