Crash on re-boot, if Graphite server not listening on configured port #2
Description
It seems, VerneMQ crashes while booting, if the vmq_graphite plugin is configured to listen on a port where no graphite listener is online.
2016-02-20 16:57:56.248 [error] <0.144.0> gen_server exometer_report terminated with reason: bad argument in exometer_report:handle_call/3 line 795
2016-02-20 16:57:56.251 [error] <0.144.0> CRASH REPORT Process exometer_report with 0 neighbours exited with reason: bad argument in exometer_report:handle_call/3 line 795
2016-02-20 16:57:56.251 [error] <0.141.0> Supervisor exometer_core_sup had child undefined started with exometer_report:start_link() at <0.144.0> exit with reason bad argument in exometer_report:handle_call/3 line 795 in context child_terminated
2016-02-20 16:57:56.251 [error] <0.182.0> CRASH REPORT Process <0.182.0> with 0 neighbours exited with reason: bad argument in exometer_report:handle_call/3 line 795 in application_master:init/4 line 134
2016-02-20 16:57:56.251 [info] <0.7.0> Application vmq_server exited with reason: bad argument in exometer_report:handle_call/3 line 795