[BASH] Linux Auth and World Server AutoRestarter

TrinityCore Development TrinityCore Code Discussion
1

I finally got some time to update my old auto-restarter.

Notes:

[ul][li]Linux only! (Sorry Windows)[/li][li]You might have to update your configs because the server is started from server/, not server/bin.[/li][li]When your auth or world server crashes a new file will be created in server/ called crashlog-auth or crashlog-world. This gives the exit code, time, day, and last 100 lines of log (you are logging, aren’t you?).[/li][/ul]

Usage: Simply drop it into your server/ directory and run. This is safe to use in cron as well.

start-auth


#!/bin/bash

CRASHLOG="crashlog-auth"

append_log() {

 echo $1 | tee -a $CRASHLOG

}


while true; do

 bin/authserver

 TRIN_EXIT_CODE=$?

 append_log ""

 append_log ""

 append_log "#####################################################################"

 append_log "#Auth server died with exit code $TRIN_EXIT_CODE. Restarting..."

 append_log "#Date: `date`"

 append_log "#Last 100 lines of log follow"

 append_log "#####################################################################"

 tail -n 100 ./logs/$(ls -tr ./logs | grep Auth | tail -n 1) >> $CRASHLOG

 sleep 1;

done;

start-world


#!/bin/bash

CRASHLOG="crashlog-world"

append_log() {

 echo $1 | tee -a $CRASHLOG

}


while true; do

 bin/worldserver

 TRIN_EXIT_CODE=$?

 append_log ""

 append_log ""

 append_log "#####################################################################"

 append_log "#World server died with exit code $TRIN_EXIT_CODE. Restarting..."

 append_log "#Date: `date`"

 append_log "#Last 100 lines of log follow"

 append_log "#####################################################################"

 tail -n 100 ./logs/$(ls -tr ./logs | grep Server | tail -n 1) >> $CRASHLOG

 sleep 1;

done;

Enjoy! Post any bugs or suggestions please.

2

Will be tested, thanks!

3

question pls:

how to make my ubuntu 10.04 start this 2 files everytime it restarts?

P.S. I am not low skilled in linux…so pls explain in a large manner!/emoticons/default_biggrin.png

4

You could try wrapping it in a service, but I’ve never done it before. Why not google around (I know there are some guides out there) on how to start a script at boot?

Note that I’m really against starting the server as root (what all services are under). If you can find a guide that shows you how to start it under a separate account then do that.

5 
su user -c command
6

Usage: Simply drop it into your server/ directory and run. This is safe to use in cron as well.

i am a newbe on ubuntu 11 can any one tell me exactly how run it?

7

[CODE]chmod 777 FILENAME

./FILENAME[/CODE]

Btw i got a restarter aswell, lil bit more advanced, checking cpu usage of the core etc (and running in screens (see gnu screen)


#!/bin/bash


# The directory your binaries are stored at

BINDIR=/home/trinity/trinity-server/bin/

# The worldserver binary name

WORLDNAME=trinityd

# The realmserver binary name

REALMNAME=realmd

# The restarters filename

RESTARTNAME=restarter

# The name of the "screens" the restarter creates

SCRNAME=trinity

# The limit of cpu usage the worldserver have (to prevent deadlocks, infninite loops etc)

CCPULIMIT=70

# The limit of cpu usage the realmserver have (to prevent deadlocks, infninite loops etc)

RCPULIMIT=70

# Log name of restarter events

LOGNAME=restarter.log


function checkcpu # Parameters: (name, procpid, cpu usage limit)

{

    procname=$1

    procpid=$2

    # Check if the process is in /proc/procpid

    typeset -i limit=$3

    if [ ! -d "/proc/${procpid}" ]; then

        return

    fi

    # Get usage cpu time

    typeset -i cputime=`cat /proc/uptime | cut -f1 -d " " | sed 's/\.//'`

    # Get process usage cpu time

    typeset -i proctime=`cat /proc/${procpid}/stat | awk '{t = $14 + $15;print t}'`

    # wait 5 seconds

    sleep 5

    # Check if the process is in /proc/procpid

    typeset -i limit=$3

    if [ ! -d "/proc/${procpid}" ]; then

        return

    fi

    # get usage cpu time, again

    typeset -i cputime2=`cat /proc/uptime | cut -f1 -d " " | sed 's/\.//'`

    # get process usage cpu time, again

    typeset -i proctime2=`cat /proc/${procpid}/stat | awk '{t = $14 + $15;print t}'`

    # calculate process usage cpu time over total usage cpu time as percentage

    typeset -i cpu=$((($proctime2-$proctime)*100/($cputime2-$cputime)))

    echo "Process $procname, with pid: $procpid, is wasting: $cpu% of cpu"

    # limit exceed check

    if [ $cpu -gt $limit ];

    then

        # Count the excess

        let hits+=1

        if [ $hits = 1 ];

        then

            times="time"

        else

            times="times"

        fi

        echo "Process $procname $procpid has exceeded the limit: $limit ($cpu) $hits $times ..." | tee -a "$BINDIR""$LOGNAME"

        # If hits are greater than 5, kill the process

        if [ $hits -gt 5 ];

        then

            echo -n "Killing process: $procpid ... " | tee -a "$BINDIR""$LOGNAME"

            kill -9 $procpid

            killall -9 $procname

            # wait until process die

            sleep 3

            # check if process has died

            if [ -z "`pidof $procname`" ];

            then

                echo "Done." | tee -a "$BINDIR""$LOGNAME"

            else

                echo "Can't kill the process." | tee -a "$BINDIR""$LOGNAME"

            fi

                echo "Finished." | tee -a "$BINDIR""$LOGNAME"

            fi

        else

        # if no limit exceed, reset hit counter

        let hits=0

    fi

}


if [ -n "${1+x}" ];

then

    case $1 in

        start-restarter)

            echo "Restarter will start everything now"

            screen -AmdS "$SCRNAME"_restarter "$BINDIR""$RESTARTNAME"

        ;;

        start-world)

            echo "Worldserver will be started now"

            screen -AmdS "$SCRNAME"_srv_core "$BINDIR""$WORLDNAME"

        ;;

        start-realm)

            echo "Realmserver will be started now"

            screen -AmdS "$SCRNAME"_srv_core "$BINDIR""$REALMNAME"

        ;;

        show-screens)

            echo "There shall be 3 screens running with $SCRNAME in the beginning"

            screen -ls

        ;;

        show-restarter)

            for i in {1..5}

            do

                echo "Press ctrl+a+d to hide the restarter again"

            done

            sleep 5

            screen -r "$SCRNAME"_restarter

        ;;

        show-world)

            for i in {1..5}

            do

                echo "Press ctrl+a+d to hide the worldserver again"

            done

            sleep 5

            screen -r "$SCRNAME"_srv_core

        ;;

        show-realm)

            for i in {1..5}

            do

                echo "Press ctrl+a+d to hide the realmserver again"

            done

            sleep 5

            screen -r "$SCRNAME"_srv_realm

        ;;

        kill-all)

            echo "Restarter, Worldserver and Realmserver will hardkilled in 5 seconds (rollbacks are possible)"

            echo "if you just read this and got panic press ctrl+c quick"

            sleep 5

            killall "$RESTARTNAME" "$WORLDNAME" "$REALMNAME"

        ;;

        kill-world)

            echo "Worldserver will be hardkilled in 5 seconds (rollbacks are possible)"

            echo "if you just read this and got panic press ctrl+c quick"

            sleep 5

            killall "$WORLDNAME"

        ;;

        kill-realm)

            echo "Realmserver killed"

            killall "$REALMNAME"

        ;;

    *)

    echo "Usage: start-restarter | start-world | start-realm | show-screens |show-restarter | show-world | show-realm | kill-all | kill-world | kill-realm | help"

    esac

else

    while true

    do

        PID1=$(pidof $WORLDNAME)

        if (( PID1 < 1 ))

        then

            NOW=$(date +"%d-%m-%Y-%T")

            sleep 2

            cd "$BINDIR"

            screen -AmdS "$SCRNAME"_srv_core "$BINDIR""$WORLDNAME"

            echo "$NOW world daemon restarted" | tee -a "$BINDIR""$LOGNAME"

        else

            checkcpu "$WORLDNAME" "$PID1" "$CCPULIMIT"

        fi

        PID2=$(pidof $REALMNAME)

        if (( PID2 < 1 ))

        then

            NOW=$(date +"%d-%m-%Y-%T")

            sleep 2

            cd "$BINDIR"

            screen -AmdS "$SCRNAME"_srv_realm "$BINDIR""$REALMNAME"

            echo "$NOW realm daemon restarted" | tee -a "$BINDIR""$LOGNAME"

        else

            checkcpu "$REALMNAME" "$PID2" "$RCPULIMIT"

        fi

    done

fi
  • LilleCarl
8

Sorryh for multiposting, but this is really easy

open a terminal

type: crontab -e

then go to the bottom line and type:

@restart FILENAME

This will start the file in “FILENAME” (As example /home/trinity/bin/world-restart)

i hope this helps /emoticons/default_smile.png

  • LilleCarl
9

This should actually be @reboot FILENAME

10

at use this script, the console give this error [COLOR=rgb(102,102,0)]-[COLOR=rgb(0,0,0)]bash[COLOR=rgb(102,102,0)]:[COLOR=rgb(0,0,0)]

-bash: ./restart.sh: /bin/bash^M: bad interpreter: No such file or directory

please help

11

You must encode the file as linux not windows (^M) shows that is generated as windows file.

12

Though i do not even use this anymore, i lost it xD