Startup script ignores servername, Xmx and Xms options
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I'm trying to change startup java memory parameters as well as default server name. I've changed values for -Xms and -Xmx and appended -servername newname option to java invocation inside script (attached:, but it didn't really change anything:


steam@hq:~/pz$ bash -x ./
++ dirname ./
+ cd .
++ pwd
+ INSTDIR=/home/steam/pz
+ /home/steam/pz/jre64/bin/java -version
+ echo '64-bit java detected'
64-bit java detected
+ export PATH=/home/steam/pz/jre64/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/snap/bin
+ PATH=/home/steam/pz/jre64/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/snap/bin
+ export LD_LIBRARY_PATH=/home/steam/pz/linux64:/home/steam/pz/natives:/home/steam/pz:/home/steam/pz/jre64/lib/amd64:
+ LD_LIBRARY_PATH=/home/steam/pz/linux64:/home/steam/pz/natives:/home/steam/pz:/home/steam/pz/jre64/lib/amd64:
+ ./ProjectZomboid64
pzexe: looking for
pzexe: was not found. This is ok for a server, but multi-core rendering won't work on a client without it.
pzexe: about to run java hack to locate
pzexe: executing "java -classpath pzexe.jar -Djava.library.path=. zombie.pzexe" loading shared library "pzexe_jni64"
pzexe config file: /home/steam/.steam/steamcmd/pz/ProjectZomboid64.json
pzexe: mainClass: zombie/network/GameServer
pzexe: classpath: -Djava.class.path=java/:java/jinput.jar:java/lwjgl.jar:java/lwjgl_util.jar:java/trove-3.0.3.jar:java/sqlite-jdbc-
pzexe: vmArg (json) 1: -Xms2048m
pzexe: vmArg (json) 2: -Xmx2048m
pzexe: vmArg (json) 3: -Dzomboid.steam=1
pzexe: vmArg (json) 4: -Dzomboid.znetlog=1
pzexe: vmArg (json) 5: -Djava.library.path=linux64/:natives/
pzexe: vmArg (json) 6: -XX:-UseSplitVerifier
pzexe: vmArg (json) 7:
pzexe: vmArg (json) 8: -XX:+UseConcMarkSweepGC
pzexe: vmArg (json) 9: -XX:-OmitStackTraceInFastThrow
pzexe: using jvm "/home/steam/.steam/steamcmd/pz/jre64/lib/amd64/server/"
1539223647788 versionNumber=39.67.5 demo=false
1539223647788 server name is "servertest"

As you can see,  name is still "servertest" (should be "newname"), -Xms and -Xmx equals 2048m instead of declared 26214m.


How can I increase memory allocation and server name in 39.67.5 server version?



Edited by Enoahe

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Well, I've kinda fixed it. Apparently those options should be appended after "./ProjectZomboid" part, like this:

        LD_PRELOAD="${LD_PRELOAD}:${JSIG}" ./ProjectZomboid64 -Xmx26214m -Xms26214m -servername newname"$@"


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And, apparently, I'm wrong again. While fiddling with zombie horde sizes and spawn rates I've stumbled upon couple out of memory errors, like this:


Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "UdpEngine"
Exception in thread "PolyPathThread" java.lang.OutOfMemoryError: Java heap space

Eventually JVM crashed and generated report file that says, among the other things, this:

VM Arguments:
jvm_args: -Xms2048m -Xmx2048m ...


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Apparently, Xmx and Xms options should be specified in json config, here:

~steam/.steam/steamcmd/pz/ProjectZomboid64.json (or ProjectZomboid32.json if you using 32-bit version of the server).

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