Can't start dedicated server loaging savedgame

[Xavicrist]

Hi,
I'm currently running about 8 megamek server (4 on 0.48.0, 2 on 0.49.X, and 2 other on 0.49.latest) Each one iwth it's own configuration ports and such.

A user requested to run a new dedicated server wich automatically loads a savedgame. Looking on the description of the project...
It says:

If you want the dedicated server to load a saved game, supply the filename after the -dedicated switch, like this: "-dedicated savedgame.sav". To stop the server, you will need to tell the Java machine to halt execution, which is CTRL + C on most platforms.

Well, I'm working on megamek 0.48.0 and I'm trying to setup that server requested (which loads a saved game). And I'm unable to.

Command Tries / output:
TEST A
java -jar MegaMek.jar -dedicated savedgame.sav --> Seems to ignore savegame
java -jar MegaMek.jar -dedicated savedgame.sav.gz --> Seems to ignore savegame
java -jar MegaMek.jar -dedicated <full_path>/savedgame.sav --> Seems to ignore savegame
java -jar MegaMek.jar -dedicated <full_path>/savedgame.sav.gz --> Seems to ignore savegame

TEST B
java -jar MegaMek.jar -dedicated savedgame.sav -port 3346 --> Megameklog.txt says it is ignoring parameter -port and says it is unable to load savegame 3346
(and all it's variants playing with PATH/savegame file name report same behaviour)

(Extract from log)
##########
##########
13:58:59,081 INFO [megamek.server.Server] {main}
loadGame(), line 1325 : s: loading saved game file '3346'

13:58:59,081 INFO [megamek.server.Server] {Connection Listener}
run(), line 31558 : s: listening for clients...

13:58:59,082 ERROR [megamek.server.Server] {main}
loadGame(), line 1332 : Unable to load file: 3346
java.io.FileNotFoundException: 3346 (No such file or directory)
at java.base/java.io.FileInputStream.open0(Native Method)
at java.base/java.io.FileInputStream.open(FileInputStream.java:219)
at java.base/java.io.FileInputStream.(FileInputStream.java:157)
at megamek.server.Server.loadGame(Server.java:1328)
at megamek.server.Server.loadGame(Server.java:1310)
at megamek.server.DedicatedServer.start(DedicatedServer.java:57)
at megamek.MegaMek.startDedicatedServer(MegaMek.java:289)
##########
##########

TEST C
java -jar MegaMek.jar -dedicated -port 3346 savedgame.sav --> Megameklog.txt says it is ignoring savedgame
(and all it's variants playing with PATH/savegame file name report same behaviour)

(Extract from log)
##########
##########
14:18:29,639 INFO [megamek.server.Server] {main}
(), line 442 : s: starting a new server...

14:18:29,642 INFO [megamek.server.Server] {main}
(), line 459 : s: hostname = '' port = 3346
s: hosting on address = 127.0.1.1

14:18:29,642 INFO [megamek.server.Server] {main}
(), line 464 : s: password = null

14:18:29,647 INFO [megamek.server.Server] {Connection Listener}
run(), line 31558 : s: listening for clients...
##########
##########

[pakfront]

I found the issue in nightlies and can fix. The -host command resolves the path, the -dedicated does not.
Meanwhile you should be able to use a path relative to the executable dir:
-dedicated ./savegames/mysave.sav.gz

[Xavicrist]

Hi, thank you, it's one of the approeaches I tried, but then, it loads the map, but ignores port specified.

For example:
Command used:

java -Xms2048m -Xmx2048m -jar MegaMek.jar -dedicated ./savegames/Savedgame.sav.gz -port 3346

But then on megameklog.txt it shows that yes it loads the map but port is getting setted at random, doesn't use 3346 as especified for example.

########
log extract
########
06:23:19,269 INFO [megamek.server.Server] {main}
(), line 442 : s: starting a new server...

06:23:19,272 INFO [megamek.server.Server] {main}
(), line 459 : s: hostname = '' port = 33993 <<<<<<-------- Here you can see it uses port 33993 instead of 3346
s: hosting on address = 127.0.1.1

06:23:19,272 INFO [megamek.server.Server] {main}
(), line 464 : s: password = null

06:23:19,277 INFO [megamek.server.Server] {main}
loadGame(), line 1325 : s: loading saved game file './savegames/Savedgame.sav.gz'

06:23:19,277 INFO [megamek.server.Server] {Connection Listener}
run(), line 31558 : s: listening for clients...
Set option 'game_turn_limit' to '25'.

On Operating system you can see it was specified port 3346 but instead listening on 33993

root# ps -ef | grep 3346 <<<<<------- check PID of command executed
megamek 279548 1 1 06:23 ? 00:00:04 /usr/bin/java -Xms2048m -Xmx2048m --illegal-access=warn -jar MegaMek.jar -dedicated ./savegames/Savedgame.sav.gz -port 3346

root# netstat -pan | grep 279548 <<<<<-------- check port used by PID
tcp6 0 0 :::33993 :::* LISTEN 279548/java
unix 3 [ ] STREAM CONNECTED 1132409 279548/java
unix 2 [ ] STREAM CONNECTED 1134015 279548/java

[pakfront]

savegame should be last argument: -dedicated -port 3333 ./savegames/mysave.sav.gz
I will update the docs to make this clear

[Xavicrist]

Hi htank you, but using savegame path parameter on last argument it doesn't take (savegame) on account.
If I use savegame path just after "-dedicated" it taken on account savegame but not port, and thus it uses a random port.

Putting both cases down here (remember this is on megamek 0.48)

Command: java -jar MegaMek.jar -dedicated -port 3346 ./savegames/WoM-Cliff.sav.gz

10:04:56,441 INFO [megamek.MegaMek] {main}
startDedicatedServer(), line 288 : Starting Dedicated Server. args: [-port 3346 ./savegames/WoM-Cliff.sav.gz]
MMRandom: generating RNG type #1
Set option 'tacops_bap' to 'true'.
Set option 'tacops_prone_fire' to 'true'.
Set option 'team_initiative' to 'false'.
Set option 'tacops_vtol_attacks' to 'true'.
Set option 'bridgeCF' to '120'.
Set option 'minefields' to 'true'.
Set option 'vtol_strafing' to 'true'.
Set option 'tacops_walk_backwards' to 'true'.
Set option 'tacops_angel_ecm' to 'true'.
Set option 'tacops_eccm' to 'true'.
Set option 'simultaneous_targeting' to 'true'.
Set option 'inf_deploy_even' to 'true'.
Set option 'exclusive_db_deployment' to 'false'.
Set option 'no_clan_physical' to 'true'.
Set option 'simultaneous_firing' to 'true'.
Set option 'use_bv_destroyed' to 'true'.
Set option 'show_bay_detail' to 'true'.
Set option 'ejected_pilots_flee' to 'true'.
Set option 'auto_ams' to 'false'.
Set option 'skip_ineligable_firing' to 'true'.
Set option 'woods_burn_down_amount' to '10'.
Set option 'skip_ineligable_movement' to 'true'.
Set option 'tacops_grappling' to 'true'.
Set option 'simultaneous_physical' to 'true'.
Set option 'clan_ignore_eq_limits' to 'true'.
Set option 'era_based' to 'true'.
Set option 'woods_burn_down' to 'true'.
Set option 'assault_drop' to 'true'.
Set option 'turn_timer' to '2'.
Set option 'lobby_ammo_dump' to 'true'.
Set option 'push_off_board' to 'false'.
Set option 'use_game_turn_limit' to 'true'.
Set option 'allow_illegal_units' to 'true'.
Set option 'techlevel' to 'Advanced'.
Set option 'initiative_streak_compensation' to 'true'.
Set option 'tacops_battle_wreck' to 'true'.
Set option 'inf_move_even' to 'true'.

10:04:56,744 INFO [megamek.server.Server] {main}
(), line 442 : s: starting a new server...

10:04:56,748 INFO [megamek.server.Server] {main}
(), line 459 : s: hostname = '' port = 3346
s: hosting on address = 127.0.1.1

10:04:56,748 INFO [megamek.server.Server] {main}
(), line 464 : s: password = null

10:04:56,753 INFO [megamek.server.Server] {Connection Listener}
run(), line 31558 : s: listening for clients...

#################
#################
#################

Command: java -jar MegaMek.jar -dedicated ./savegames/WoM-Cliff.sav.gz -port 3346

10:09:11,245 INFO [megamek.MegaMek] {main}
startDedicatedServer(), line 288 : Starting Dedicated Server. args: [./savegames/WoM-Cliff.sav.gz -port 3346]
MMRandom: generating RNG type #1
Set option 'tacops_bap' to 'true'.
Set option 'tacops_prone_fire' to 'true'.
Set option 'team_initiative' to 'false'.
Set option 'tacops_vtol_attacks' to 'true'.
Set option 'bridgeCF' to '120'.
Set option 'minefields' to 'true'.
Set option 'vtol_strafing' to 'true'.
Set option 'tacops_walk_backwards' to 'true'.
Set option 'tacops_angel_ecm' to 'true'.
Set option 'tacops_eccm' to 'true'.
Set option 'simultaneous_targeting' to 'true'.
Set option 'inf_deploy_even' to 'true'.
Set option 'exclusive_db_deployment' to 'false'.
Set option 'no_clan_physical' to 'true'.
Set option 'simultaneous_firing' to 'true'.
Set option 'use_bv_destroyed' to 'true'.
Set option 'show_bay_detail' to 'true'.
Set option 'ejected_pilots_flee' to 'true'.
Set option 'auto_ams' to 'false'.
Set option 'skip_ineligable_firing' to 'true'.
Set option 'woods_burn_down_amount' to '10'.
Set option 'skip_ineligable_movement' to 'true'.
Set option 'tacops_grappling' to 'true'.
Set option 'simultaneous_physical' to 'true'.
Set option 'clan_ignore_eq_limits' to 'true'.
Set option 'era_based' to 'true'.
Set option 'woods_burn_down' to 'true'.
Set option 'assault_drop' to 'true'.
Set option 'turn_timer' to '2'.
Set option 'lobby_ammo_dump' to 'true'.
Set option 'push_off_board' to 'false'.
Set option 'use_game_turn_limit' to 'true'.
Set option 'allow_illegal_units' to 'true'.
Set option 'techlevel' to 'Advanced'.
Set option 'initiative_streak_compensation' to 'true'.
Set option 'tacops_battle_wreck' to 'true'.
Set option 'inf_move_even' to 'true'.

10:09:11,553 INFO [megamek.server.Server] {main}
(), line 442 : s: starting a new server...

10:09:11,557 INFO [megamek.server.Server] {main}
(), line 459 : s: hostname = '' port = 40219
s: hosting on address = 127.0.1.1

10:09:11,557 INFO [megamek.server.Server] {main}
(), line 464 : s: password = null

10:09:11,561 INFO [megamek.server.Server] {main}
loadGame(), line 1325 : s: loading saved game file './savegames/WoM-Cliff.sav.gz'

10:09:11,561 INFO [megamek.server.Server] {Connection Listener}
run(), line 31558 : s: listening for clients...
Set option 'game_turn_limit' to '25'.

[pakfront]

Hmm, OK, I guess I con't help you with 0.48, but I have submitted a fix to the development version that fixes this in the next release.