{UPR} ::Control connection to memcached on 'ns_1@IP' disconnected with some other crashes before upr_replicator:init/1, upr_proxy:init/1, replication_manager:init/1

Jenkins Link:
http://qa.sc.couchbase.com/job/ubuntu_x64--65_01--view_query_negative-P1/17/console

Notes:
Failed Test will not deterministically reproduce the error.
No Core dumps are observed on the machines.
Please refer log file log.txt attached.

Logs:
[user:info,2014-04-21T1:42:50.417,ns_1@172.23.106.196:ns_memcached-default<0.22998.7>:ns_memcached:terminate:821]Control connection to memcached on 'ns_1@172.23.106.196' disconnected: {badmatch,
{error,
couldnt_connect_to_memcached}}
[error_logger:error,2014-04-21T1:42:50.419,ns_1@172.23.106.196:error_logger<0.6.0>:ale_error_logger_handler:log_msg:119]** Generic server <0.22998.7> terminating

• • Last message in was {'EXIT',<0.23030.7>,
    
    Unknown macro: {badmatch,{error,couldnt_connect_to_memcached}}

    }

  • When Server state ==
    Unknown macro: {state,1,0,0, {[],[]},
    {[],[]}, {[],[]}, connected, {1398,69765,399403}, "default",#Port<0.424036>, {interval,#Ref<0.0.28.134215>}, [{<0.23031.7>,#Ref<0.0.28.136461>}, {<0.23029.7>,#Ref<0.0.28.134508>}, {<0.23032.7>,#Ref<0.0.28.134245>}], []}
  • Reason for termination ==
  • {badmatch,
    Unknown macro: {error,couldnt_connect_to_memcached}

    }

[error_logger:error,2014-04-21T1:42:50.420,ns_1@172.23.106.196:error_logger<0.6.0>:ale_error_logger_handler:log_report:115]
=========================CRASH REPORT=========================
crasher:
initial call: ns_memcached:init/1
pid: <0.22998.7>
registered_name: []
exception exit: {badmatch,{error,couldnt_connect_to_memcached}}
in function gen_server:init_it/6
ancestors: ['single_bucket_sup-default',<0.22992.7>]
messages: []
links: [<0.23029.7>,<0.23031.7>,<0.23032.7>,<0.307.0>,<0.22993.7>]
dictionary: []
trap_exit: true
status: running
heap_size: 196418
stack_size: 24
reductions: 22902
neighbours:
neighbour: [

{pid,<0.23032.7>}

,

{registered_name,[]},
{initial_call,{erlang,apply,['Argument__1','Argument__2']}},
{current_function,{gen,do_call,4}},
{ancestors,['ns_memcached-default', 'single_bucket_sup-default',<0.22992.7>]},
{messages,[]},
{links,[<0.22998.7>,#Port<0.424043>]},
{dictionary,[]},
{trap_exit,false},
{status,waiting},
{heap_size,46368},
{stack_size,24},
{reductions,4663}]
neighbour: [{pid,<0.23031.7>},
{registered_name,[]}

,
{initial_call,{erlang,apply,['Argument__1','Argument__2']}},
{current_function,{gen,do_call,4}},

{ancestors,['ns_memcached-default', 'single_bucket_sup-default',<0.22992.7>]},
{messages,[]},
{links,[<0.22998.7>,#Port<0.424044>]},
{dictionary,[]},
{trap_exit,false},
{status,waiting},
{heap_size,10946},
{stack_size,24},
{reductions,44938}]
neighbour: [{pid,<0.23029.7>},
{registered_name,[]},
{initial_call,{erlang,apply,['Argument__1','Argument__2']}},
{current_function,{gen,do_call,4}},
{ancestors,['ns_memcached-default', 'single_bucket_sup-default',<0.22992.7>]}

,

{messages,[]}

,

{links,[<0.22998.7>,#Port<0.424045>]}

,

{dictionary,[]}

,

{trap_exit,false}

,

{status,waiting}

,

{heap_size,10946}

,

{stack_size,24}

,

{reductions,11546}

]

Uploading logs.