0down votefavorite <http://stackoverflow.com/questions/36377451/dancer2-session-not-written-to-file?noredirect=1#> In my Dancer2 app I find that the session information is not stored in between file request. I am using YAML as my session store format. e.g. I have defined a test route to set a variable in the session and dump the settings and session variable in the template using Data Dumper in the template. get '/test/:key/:value' => sub { my $key =params->{key}; my $value =params ->{value}; session($key=>$value); template 'test';}; The result of Data Dumper is $VAR1 = {'engines' => {'template' => {'template_toolkit' => {'start_tag' => '<%','end_tag' => '%>'}},'session' => {'YAML' => {'cookie_name' => 'domain.session','is_secure' => '1','is_http_only' => '1','session_dir' => '/tmp/dancer-sessions/'}}}, And session var is $VAR1 = {'a' => 1}; At this point I expect my /tmp directory to contain a session folder but I see the following starman@ubuntu:~/www/app$ ls -al /tmp total 776 drwxrwxrwt 2 root root 4096 Apr 2 14:39 . drwxr-xr-x 21 root root 4096 Apr 2 07:31 ..-rw-r--r-- 1 starman starman 776737 Apr 2 14:31 starman.err-rw-r--r-- 1 starman starman 0 Apr 2 07:31 starman.out-rw-r--r-- 1 starman starman 4 Apr 2 14:31 starman.pid I am unable to figure out why the session file is not getting created. Any pointers on my mistake will be helpful My test.tt is as follows <%USE Dumper%><h1> Dumping the settings variable </h1> <%Dumper.dump_html(settings)%> <h1> Dumping the session variable </h1><%Dumper.dump_html(session)%> The live url for this route is Live URL <http://edaindia.com/test/var/bar> Note: I am launching 2 separate domain using a common app.psgi file whose content is as follows use Plack::Builder; use Dancer2 ':syntax'; use lib '/home/starman/www/dyumnin/lib'; use lib '/home/starman/www/edaindia/lib'; use dyumnin; use edaindia; builder { mount 'http://edaindia.com/' => edaindia->to_app; mount 'http://dyumnin.com/' => dyumnin->to_app; }; -- https://www.facebook.com/vijayvithal.jahagirdar https://twitter.com/jahagirdar_vs http://democracies-janitor.blogspot.in/