<div dir="ltr">Hi list,<br><br>Every time a summer to winter or winter to summer shift happens I have errors in logs this:<br><br>=ERROR REPORT==== 30-Oct-2016::03:00:00 ===<br>** gen_event handler {file_appender,xppd} crashed.<br>** Was installed in default_logger<br>** Last event was: {log,{log,info,<br>                             <<"<0.26353.547> 127.0.0.1 abx.xyz ABCDEF-1477785600.4033">>,<br>                             [],<br>                             {{2016,10,30},{3,0,0}},<br>                             418013}}<br>** When handler state == {file_appender,"/var/xpp/logs","access",<br>                             {file_descriptor,prim_file,{#Port<0.5685945>,19}},<br>                             0,<br>                             {log_type,size,100000,undefined},<br>                             5,"log",info,<br>                             [91,level,93,32,iso_format,32,log,new_line]}<br>** Reason == {{badmatch,[{{2016,10,30},{0,0,0}},{{2016,10,30},{1,0,0}}]},<br>              [{log_formatter,get_token_value,2,[]},<br>               {lists,map,2,[{file,"lists.erl"},{line,1237}]},<br>               {lists,map,2,[{file,"lists.erl"},{line,1237}]},<br>               {file_appender,do_log,2,[]},<br>               {file_appender,handle_event,2,[]},<br>               {gen_event,server_update,4,[{file,"gen_event.erl"},{line,525}]},<br>               {gen_event,server_notify,4,[{file,"gen_event.erl"},{line,507}]},<br>               {gen_event,server_notify,4,<br>                          [{file,"gen_event.erl"},{line,509}]}]}<br><br>=ERROR REPORT==== 30-Oct-2016::03:00:00 ===<br>** Generic server <0.85.0> terminating <br>** Last message in was {gen_event_EXIT,<br>                           {file_appender,xppd},<br>                           {'EXIT',<br>                               {{badmatch,<br>                                    [{{2016,10,30},{0,0,0}},<br>                                     {{2016,10,30},{1,0,0}}]},<br>                                [{log_formatter,get_token_value,2,[]},<br>                                 {lists,map,2,<br>                                     [{file,"lists.erl"},{line,1237}]},<br>                                 {lists,map,2,<br>                                     [{file,"lists.erl"},{line,1237}]},<br>                                 {file_appender,do_log,2,[]},<br>                                 {file_appender,handle_event,2,[]},<br>                                 {gen_event,server_update,4,<br>                                     [{file,"gen_event.erl"},{line,525}]},<br>                                 {gen_event,server_notify,4,<br>                                     [{file,"gen_event.erl"},{line,507}]},<br>                                 {gen_event,server_notify,4,<br>                                     [{file,"gen_event.erl"},{line,509}]}]}}}<br>** When Server state == [{appender,file_appender,xppd}]<br>** Reason for termination == <br>** {appender_died,<br>       {'EXIT',<br>           {{badmatch,[{{2016,10,30},{0,0,0}},{{2016,10,30},{1,0,0}}]},<br>            [{log_formatter,get_token_value,2,[]},<br>             {lists,map,2,[{file,"lists.erl"},{line,1237}]},<br>             {lists,map,2,[{file,"lists.erl"},{line,1237}]},<br>             {file_appender,do_log,2,[]},<br>             {file_appender,handle_event,2,[]},<br>             {gen_event,server_update,4,[{file,"gen_event.erl"},{line,525}]},<br>             {gen_event,server_notify,4,[{file,"gen_event.erl"},{line,507}]},<br>             {gen_event,server_notify,4,<br>                 [{file,"gen_event.erl"},{line,509}]}]}}}<br><br><br>It  looks like error_logger does not knows how to handle daylight saving times.<br><br>The error occurs precisely in the moment when the hour is going back or forth.<br>After this, error_logger resumes .<br><br><br>/Bogdan<br></div>