I installed Tomcat 8 with Java 8 on VPS server with 1024 RAM. But when I deploy war package I get error for memory.
I tried to limit the allocated memory with this setenv.sh script:
#! /bin/sh
export JAVA_OPTS="-Djava.awt.headless=true -server -Xms48m -Xmx1024M -XX:MaxPermSize=512m
But I get this error when I start Tomcat:
[root#ip-172-31-28-148 bin]# ./shutdown.sh
Using CATALINA_BASE: /opt/apache-tomcat-8.0.26
Using CATALINA_HOME: /opt/apache-tomcat-8.0.26
Using CATALINA_TMPDIR: /opt/apache-tomcat-8.0.26/temp
Using JRE_HOME: /
Using CLASSPATH: /opt/apache-tomcat-8.0.26/bin/bootstrap.jar:/opt/apache-tomcat-8.0.26/bin/tomcat-juli.jar
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0
[root#ip-172-31-28-148 bin]#
Do you have any idea what is the proper way to limit Java to use 512 MB RAM memory?
It's normal, the system property PermSize and MaxPermSize have been removed in Java8 and their use raise a warning.
You could use MaxMetaspaceSize instead but your question is not clear. With PermSize, your reduce the memory allocated to the Permanent Generation, objects which are needed by the JVM and your container at all time.
If you want to reduce the memory used by your JVM (only the heap --> arrays and instances), you should use Xms (size at start) and Xmx (max size).
For example :
-Xms256M
-Xmx1024M
Related
in my docker file
JAVA_OPTS = "-server -Xms512m -Xmx1024m -XX:HeapDumpPath=/opt/logs/dump"
ps aux | grep 18657
root 18657 29.6 4.5 4865248 1477012 ? Ssl 17:26 12:22 /usr/lib/jvm/default-jvm/bin/java -Djava.util.logging.config.file=/apache-tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -server -Xms512m -Xmx1024m
the thread memory 1477012 is more than 1G
so my question is : 600m more memory are noheap memory and how can i find out what is using it
also when i set JAVA_OPTS = "-server -Xms2048m -Xmx3072m -XX:HeapDumpPath=/opt/logs/dump"
when the docker container run and i find the java thread memory is less than 2g.
in my mind, xms is the start heap memory, java thread memmory using can not less the xms
I am using IntelliJ 2020.1 Ultimate and have a JBoss 7.0.2 server that I want to run from IntelliJ.
I have added it as a configuration:
But when I try start the server, I get the following error:
IDEA.app/Contents/plugins/Kotlin/lib/jps/kotlin-jps-plugin.jar:/Applications/IntelliJ
IDEA.app/Contents/plugins/Kotlin/lib/kotlin-stdlib.jar:/Applications/IntelliJ
IDEA.app/Contents/plugins/Kotlin/lib/kotlin-reflect.jar:/Applications/IntelliJ
IDEA.app/Contents/plugins/Kotlin/lib/kotlin-plugin.jar"
org.jetbrains.jps.cmdline.BuildMain 127.0.0.1 64088
4a7ed3b5-cfb6-4196-b997-396c16d8c06f
/Users/richardmarais/Library/Caches/JetBrains/IntelliJIdea2020.1/compile-server
Picked up JAVA_TOOL_OPTIONS: -Dhttps.protocols=TLSv1.2 -Xmx2048m
-XX:MaxPermSize=1024m -Xms2048m OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0 Error occurred
during initialization of VM Initial heap size set to a larger value
than the maximum heap size
My idea.vmoptions are the default values:
-Xms128m
-Xmx2048m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-XX:CICompilerCount=2
-Dsun.io.useCanonPrefixCache=false
-Djdk.http.auth.tunneling.disabledSchemes=""
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Djdk.attach.allowAttachSelf=true
-Dkotlinx.coroutines.debug=off
-Djdk.module.illegalAccess.silent=true
-XX:+UseCompressedOops
-Dfile.encoding=UTF-8
-XX:ErrorFile=$USER_HOME/java_error_in_idea_%p.log
-XX:HeapDumpPath=$USER_HOME/java_error_in_idea.hprof
Question
Do you know how I can fix the above error to get JBoss to start?
You don't need to set any global environment variables to patch the VM options.
Unset JAVA_TOOL_OPTIONS and specify the proper VM Options in the Run/Debug configuration for the server:
-Xms256m -Xmx2048m -XX:MaxPermSize=512m
It should be more than enough for any project. I doubt that you really need 5GB initial heap size.
Also note that IntelliJ IDEA .vmoptions doesn't affect the options for the apps that you start from the IDE.
I fixed this by doing this.
open -a TextEdit.app ~/.bash_profile
then:
export JAVA_TOOL_OPTIONS="-Dhttps.protocols=TLSv1.2 -Xmx4096m -Xms128m"
Hello friends I am facing an error message whenever I am launching android studio.The error is failed to create jvm error code -1 .See the below image for the complete error message
I tried to find solution on Google, but I didn't find any solution.
Thanks
My laptop config is
win7 64bit
i5 intel
8 gb 6 gb ram
1 tb hard disk
My android studio vmopetion file is
#
# *DO NOT* modify this file directly. If there is a value that you would like to override,
# please add it to your user specific configuration file.
#
# See http://tools.android.com/tech-docs/configuration
#
-Xms256m
-Xmx1280m
-XX:MaxPermSize=350m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-da
-Djna.nosys=true
-Djna.boot.library.path=
-Djna.debug_load=true
-Djna.debug_load.jna=true
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-Didea.paths.selector=AndroidStudio2.1
-Didea.platform.prefix=AndroidStudio
my java version is 1.8.0_91
I have the same problem which triggered after i changed vmoptions file.This worked for me
Go to C:\Users\ username \.androidStudio\
2.Find the studio.exe.vmoptions (or studio64.exe.vmoptions) and simply type
-Xmx4g (or -Xmx2g if you want to allocate 2GB RAM)
Here 4g is for allocating 4GB RAM to android studio.
Open file located at
/Applications/Android\ Studio.app/Contents/bin/studio.vmoptions
Change the content to
-Xms128m
-Xmx4096m
-XX:MaxPermSize=1024m
-XX:ReservedCodeCacheSize=200m
-XX:+UseCompressedOops
Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. Your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory.
Save the studio.vmoptions file and restart Android Studio.
I'm trying to run a file on a vps with 384mb of ram, If I run the file with this command on terminal
screen java -jar server.jar
It just starts the process but with only 180mb approx allocated to it, I need to allocate all the ram avaiable, I run the command free -m and I get this output:
total used free shared buffers cached
Mem: 384 58 325 6 0 44
-/+ buffers/cache: 14 369
Swap: 96 0 96
So I've tried lots of commands with different amounts of ram like those but no one worked, java could not create the java virtual machine:
java -Xms32M -Xmx256M -jar minecraft_server.jar
I tried putting the maximum ram, half and changing values but it gives error.
Before I was running the same file on a 1GB vps and that command was working fine:
java -Xmx1024M -Xms1024M -jar bukkit.jar
My java version is:
java version "1.7.0_55"
OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1)
OpenJDK Client VM (build 24.51-b03, mixed mode)
Hope you can help me, I'm stuck with the same problem two days
Try:
java -server -Xms128M -Xmx128M -jar minecraft_server.jar
xms and xmx having the same value will allocate the entire memory in one go rather than having to keep increasing the heap. This is more efficient when running a server type app.
As for -server argument it's refering to the type of JVM used
By default, all client applications run in -client mode, while a server and certain server utilities run in -server mode. Usually, -server mode provides higher throughput than -client mode, at the expense of slightly longer startup times. Since the application in question seems to be a server type it is recommended to use -server
I want to increase the JVM memory settings for my Tomcat 5.5 instance (on Linux server with 1.8 gigs of memory).
Current JVM Status:
Free memory: 15.60 MB Total memory: 26.00 MB Max memory: 405.37 MB
I just can't get these settings to budge. I tried the following:
Added the following statement to "setenv.sh" in /tomcat/bin:
export JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"
Added the following statement to "setenv.sh" in /tomcat/bin:
export CATALINA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"
Added the following statement to "setenv.sh" in /tomcat/bin:
JAVA_OPTS="-Xmx1024m -Xms512m -server"
export JAVA_OPTS
Added the following statement to "catalina.sh" in /tomcat/bin:
CATALINA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"
Added the following statement to "catalina.sh" in /tomcat/bin:
JAVA_OPTS="-server -Xms1024m -Xmx1024m -XX:MaxPermSize=256m"
NONE of these changes made any impact on the JVM settings.
I have exhausted all options identified from various support sites, including:
How to tune Tomcat 5.5 JVM Memory settings without using the configuration program and
http://wiki.razuna.com/display/ecp/Adjusting+Memory+Settings+for+Tomcat
Thanks in advance.