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Author Topic: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)  (Read 86396 times)

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Offline CK

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #490 on: January 09, 2020, 07:11:20 PM »
That is useful to know. May I ask what the performance is like once you do manage to login?
Sluggish, to summarise.

Offline jamespetts gb

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #491 on: January 09, 2020, 07:55:19 PM »
Sluggish, to summarise.

Thank you. Are you able to elaborate on this; is it unresponsive to commands; is the speed inconsistent; are there regular pauses? The particular type of sluggishness can help to narrow down how best to deal with a high load.

Offline CK

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #492 on: January 09, 2020, 08:28:32 PM »
Thank you. Are you able to elaborate on this; is it unresponsive to commands; is the speed inconsistent; are there regular pauses? The particular type of sluggishness can help to narrow down how best to deal with a high load.
The speed appears to be consistent, but the pauses are regular, and the game is occasionally unresponsive to commands.

Offline jamespetts gb

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #493 on: January 09, 2020, 09:10:43 PM »
The speed appears to be consistent, but the pauses are regular, and the game is occasionally unresponsive to commands.

Interesting - thank you for letting me know.

Offline freddyhayward au

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #494 on: January 14, 2020, 01:07:33 PM »
Is there anywhere I can view the autosave logic for this server?

Offline jamespetts gb

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #495 on: January 14, 2020, 02:39:26 PM »
The logic is here:

Code: [Select]
root@438242:~# cat rotate-backup.sh
# Rotation and backup script for the Simutrans-Experimental server
# Written by James E. Petts, December 2012
# Modified September 2018 to add thd date/time

# This script is designed to:
# (1) check whether the saved game has been modified in the last hour;
# (2) if it has not, run the force-sync command;
# (3) check again whether the saved game has been modified in the last hour
# (the force-sync command might or might not modify it depending on whether -
# (a) Simutrans-Experimental is running; and
# (b) there are any players connected); and
# (4) if it has, rotate the saved games using the rotate.sh script.

echo
echo "******"
echo
echo "Running the backup and rotation script..."
echo
echo "The current date and time is"
date
echo
SAVEGAME="/usr/share/games/simutrans-extended/server13353-network.sve"

# Check that the server saved game exists at all
if [ ! -e $SAVEGAME ]
then
echo "Error: saved game not found at $SAVEGAME"
echo
exit 1
fi

# Check the current time and the last modification time of the saved game file
# Use Unix time (seconds since 1 Jan. 1970)
NOWTIME=$(date +%s)
NOWTIME_FRIENDLY=date

SAVEMODTIME=$(stat -c %Y $SAVEGAME)
SAVEMODTIME_FRIENDLY="stat -c %y $SAVEGAME"

HOURAGO=$(expr $NOWTIME - 3600)
HALFHOURAGO=$(expr $NOWTIME - 1800)

echo "Current time:"
$NOWTIME_FRIENDLY
echo
echo "Game last saved:"
$SAVEMODTIME_FRIENDLY
echo

# Check whether the saved game was modified more than an hour ago
if [ $HALFHOURAGO -gt $SAVEMODTIME ]
then
echo "The game was last saved more than half an hour ago. Run a force sync."
echo
/root/force-sync.sh

# Check again whether the saved game was modified more than an hour ago.
# But first, wait two minutes, as it might take a while to execute the
# force-sync command.
sleep 120
else
echo "The game was last saved within half an hour - do not run a force sync."
echo
fi

NEWSAVEMODTIME=$(stat -c %Y $SAVEGAME)

if [ $HOURAGO -gt $NEWSAVEMODTIME ]
then
echo "The game was not updated with a force-sync. Either the server is not running, or no clients are connected."
echo
exit 2
else
echo "The saved game has been updated in the last hour. Rotate the backups."
echo
/root/rotate.sh
fi
sync

The above is a shell script set to run once every minute on the server.

Offline freddyhayward au

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #496 on: January 14, 2020, 03:02:03 PM »
Thanks, would you mind also sharing force-sync.sh?

Offline jamespetts gb

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #497 on: January 14, 2020, 03:05:43 PM »
Here it is:


Code: [Select]
# Shell script to run a force-sync on the running Simutrans-Experimental server
# Written by James E. Petts, December 2012
# Modified September 2018 to add the date/time for logging purposes

echo "Running a force-sync..."
date
echo

/usr/share/games/simutrans-extended/nettool -s bridgewater-brunel.me.uk -p [PASSWORD REDACTED] clients

echo

/usr/share/games/simutrans-extended/nettool -s bridgewater-brunel.me.uk -p [PASSWORD REDACTED] -q force-sync

sleep 3m
sync

Offline freddyhayward au

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #498 on: January 14, 2020, 03:21:47 PM »
Thanks. From what I can tell, this uses code from network_cmd_ingame.cc, which goes ahead with autosaves even when no clients are connected. Perhaps this is contributing to the server's connection difficulties?

Offline jamespetts gb

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #499 on: January 14, 2020, 03:28:56 PM »
The difficulty, I think, is that the time that it takes to save is equal to or greater than the designated interval between saves.  From what I can deduce from looking at memory allocation, most of the data are player routes.

I notice from the code that, although the comments refer to hourly saving, it was changed at some point to half-hourly saving. I can re-increase it to hourly saving and see whether that helps for the time being; but the ultimate issue is that the saved game is too demanding for the server.

Edit: I have now made this modification.

Offline DrSuperGood

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #500 on: January 14, 2020, 09:55:42 PM »
I think at this point people mostly want a new server game. I have not been able to play for over a month because every time I try to join it fails...

At times I want to join for 5-15 minutes and maintain my stuff or do part of a new route. But currently it is taking over 30 minutes to join which is counter productive to this play style. Instead of repeatedly trying to rejoin once it fails I rather let people who want to play for 2-3 hours play uninterrupted.

Offline freddyhayward au

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #501 on: February 01, 2020, 11:33:57 AM »
While we all wait for either a technical fix or a new savegame, I thought I'd share a rail network map I created for fun based on the Bay region of the server. The map does not include operators other than the Bay Transport Group nor any of the many Bay Metro underground lines.

Offline Freahk

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #502 on: February 01, 2020, 12:02:29 PM »
Uhm "for fun" does not imply a broken image I guess?
For some reason I can see the thumbmail but I cannot open the image itself. "unsupported file format"

Offline jamespetts gb

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #503 on: February 01, 2020, 06:15:38 PM »
I have the same trouble as Freahk.

Offline Matthew gb

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #504 on: February 01, 2020, 07:38:30 PM »
The map looks very professional, freddyhayward! I've never seen the Bridgewater-Brunel game, but it looks like this corner of the rail network has an authentic feel.  :)

BTW I can see the map by right-clicking on the attachment and downloading it. I guess that the preview is affected by the forum's ongoing troubles.

Offline Ves

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #505 on: February 01, 2020, 07:43:04 PM »
I also could only see it by downloading and open in GIMP (my normal picture viewer could also not open it)!
Nice looking map you made!  :D

Offline freddyhayward au

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Re: Bridgewater-Brunel no. 1 - Great Britain sized map (no. 2)
« Reply #506 on: February 01, 2020, 10:51:04 PM »
Hopefully this link works: