I am working on gRPC  for QNX ARM 7.0 platform.

I am able to build the gRPC code for QNX platform. While running these binaries I am facing an issue related to DNS 
server.

D0101 23:54:27.828777594       1 grpc_ares_ev_driver.cc:313]           (c-ares resolver) request:1036ce90 readable on c-
ares fd: 3
D0101 23:54:27.829777489       1 grpc_ares_wrapper.cc:243]             (c-ares resolver) request:1036ce90 
on_hostbyname_done_locked host=localhost C-ares status is not ARES_SUCCESS: Could not contact DNS servers
D0101 23:54:27.829777489       1 grpc_ares_ev_driver.cc:98]            (c-ares resolver) request:1036ce90 Ref ev_driver 
10361460
D0101 23:54:27.829777489       1 grpc_ares_ev_driver.cc:407]           (c-ares resolver) request:1036ce90 notify read on
: c-ares fd: 3
D0101 23:54:27.829777489       1 grpc_ares_ev_driver.cc:105]           (c-ares resolver) request:1036ce90 Unref 
ev_driver 10361460
D0101 23:54:27.830777436       1 grpc_ares_ev_driver.cc:313]           (c-ares resolver) request:1036ce90 readable on c-
ares fd: 3
D0101 23:54:27.830777436       1 grpc_ares_ev_driver.cc:98]            (c-ares resolver) request:1036ce90 Ref ev_driver 
10361460
D0101 23:54:27.830777436       1 grpc_ares_ev_driver.cc:407]           (c-ares resolver) request:1036ce90 notify read on
: c-ares fd: 3
D0101 23:54:27.830777436       1 grpc_ares_ev_driver.cc:105]           (c-ares resolver) request:1036ce90 Unref 
ev_driver 10361460
D0101 23:54:27.831777175       1 grpc_ares_ev_driver.cc:313]           (c-ares resolver) request:1036ce90 readable on c-
ares fd: 3
D0101 23:54:27.831777175       1 grpc_ares_wrapper.cc:243]             (c-ares resolver) request:1036ce90 
on_hostbyname_done_locked host=localhost C-ares status is not ARES_SUCCESS: Could not contact DNS servers
I0101 23:54:27.831777175       1 timer_generic.cc:468]                 TIMER 103614a8: CANCEL pending=true
I0101 23:54:27.831777175       1 timer_generic.cc:468]                 TIMER 103614f8: CANCEL pending=true
D0101 23:54:27.831777175       1 grpc_ares_ev_driver.cc:105]           (c-ares resolver) request:1036ce90 Unref 
ev_driver 10361460
D0101 23:54:27.832777227       1 grpc_ares_ev_driver.cc:119]           (c-ares resolver) request:1036ce90 delete fd: c-
ares fd: 3
D0101 23:54:27.832777227       1 grpc_ares_ev_driver.cc:449]           (c-ares resolver) request:1036ce90 ev driver stop
 working
D0101 23:54:27.832777227       1 grpc_ares_ev_driver.cc:105]           (c-ares resolver) request:1036ce90 Unref 
ev_driver 10361460
D0101 23:54:27.832777227       1 grpc_ares_ev_driver.cc:247]           (c-ares resolver) request:1036ce90 ev_driver=
10361460 on_timeout_locked. driver->shutting_down=1. err="Cancelled"
D0101 23:54:27.833776966       1 grpc_ares_ev_driver.cc:105]           (c-ares resolver) request:1036ce90 Unref 
ev_driver 10361460
D0101 23:54:27.833776966       1 grpc_ares_ev_driver.cc:276]           (c-ares resolver) request:1036ce90 ev_driver=
10361460 on_ares_backup_poll_alarm_locked. driver->shutting_down=1. err="Cancelled"
D0101 23:54:27.833776966       1 grpc_ares_ev_driver.cc:105]           (c-ares resolver) request:1036ce90 Unref 
ev_driver 10361460
D0101 23:54:27.833776966       1 grpc_ares_ev_driver.cc:108]           (c-ares resolver) request:1036ce90 destroy 
ev_driver 10361460
D0101 23:54:27.833776966       1 dns_resolver_ares.cc:367]             (c-ares resolver) resolver:10361560 dns 
resolution failed: {"created":"@86067.831777175","description":"C-ares status is not ARES_SUCCESS: Could not contact DNS
 servers","file":"/local/mnt/workspace/gitlab/grpc/src/core/ext/filters/client_channel/resolver/dns/c_ares/
grpc_ares_wrapper.cc","file_line":244,"referenced_errors":[{"created":"@86067.829777489","description":"C-ares status is
 not ARES_SUCCESS: Could not contact DNS servers","file":"/local/mnt/workspace/gitlab/grpc/src/core/ext/filters/
client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc","file_line":244}]}
I0101 23:54:27.834777226 ...