invoke runner without screen + add log file

scripts/deploy.pl

@@ -34,6 +34,7 @@ my $remote_root       = '/home/lab/smchurla/Documents/failnix';
 my $remote_db_conf    = "$remote_root/db.conf";
 my $remote_builds_dir = "$remote_root/builds";
 my $remote_runner     = "$remote_root/scripts/runner.pl";
+my $remote_log        = "$remote_root/runner.log";
 
 # The mars db is bound to local port 3306 over SSH.
 # - This requires using the configured 'mars'
@@ -111,15 +112,22 @@ foreach (@experiments) {
 }
 
 # Kill old screen session (don't check success as a session might not exist)
-say "Killing previous screen session with name $screen_name";
-$ssh->system( "screen", "-XS", $screen_name, "quit" );
+# say "Killing previous screen session with name $screen_name";
+# $ssh->system( "screen", "-XS", $screen_name, "quit" );
 
 # Start new screen session
-my $invoke_runner = "perl " . shell_quote($remote_runner);
-say
-"Starting new screen session with name $screen_name and command $invoke_runner";
-remote( $ssh, "screen", "-dmS", $screen_name, "sh", "-lc",
-    "exec $invoke_runner" );
+# my $invoke_runner =
+#   "cd " . shell_quote($remote_root) . " && perl " . shell_quote($remote_runner);
+# say
+# "Starting new screen session with name $screen_name and command $invoke_runner";
+# remote( $ssh, "screen", "-dmS", $screen_name, "sh", "-lc",
+#     "exec $invoke_runner" );
+
+remote( $ssh,
+        "nohup sh -c "
+      . shell_quote("cd $remote_root && perl $remote_runner") . " >"
+      . shell_quote($remote_log)
+      . " 2>&1 < /dev/null &" );
 
 say "Started remote runner for ", scalar(@experiments), " experiments";
 

scripts/dropdb.pl

@@ -46,6 +46,7 @@ my $dbh = DBI->connect( "DBI:MariaDB:host=$db_host;port=$db_port",
   or die 'Failed to connect to database: ' . $DBI::errstr;
 say 'Connected to database';
 
+while (1) {
     say 'Existing databases:';
     my @db_names =
       sort
@@ -53,10 +54,15 @@ my @db_names =
       grep { !/information_schema|smchurla_ll/ } $dbh->data_sources();
     foreach (@db_names) { say " - $_"; }
 
-print 'Enter name to delete: ';
+    print 'Enter single name or comma-separated list to delete: ';
     my $db_sel = <STDIN>;
     chomp $db_sel;
-$dbh->do("drop database `$db_sel`")
+    my @selected_dbs = $db_sel eq "all" ? @db_names : split( ',', $db_sel );
+    foreach (@selected_dbs) {
+        $dbh->do("drop database `$_`")
           or die "Failed to drop database: " . $dbh->errstr;
 
+    }
+}
+
 $dbh->disconnect or warn $dbh->errstr;

scripts/runner.pl

@@ -115,7 +115,9 @@ sub import_trace {
     system(
 "$fail_import --database-option-file $remote_db_conf -t $remote_builds_dir/$experiment/trace.pb -i ElfImporter --objdump objdump -e $remote_builds_dir/$experiment/system.elf -v $experiment -b regs"
     );
-    system( "$fail_prune --database-option-file $remote_db_conf -v $experiment -b %% --overwrite" );
+    system(
+"$fail_prune --database-option-file $remote_db_conf -v $experiment -b %% --overwrite"
+    );
 
     # notify("Importing $experiment trace complete.");
 }
@@ -137,8 +139,8 @@ sub inject {
     }
 
     # parent -> client
-    # my $count = cpu_count();
-    my $count = 1;
+    # my $count = 1;
+    my $count = cpu_count();
 
     # "-Wf,--catch-write-textsegment",
     system(