My PlayFramework app always starts with only 256mb ram. Is there a way to increase the default ram?
I start my application with sbt run
Thanks in advance
I got this error java.lang.OutOfMemoryError: Java heap space
You can edit sbt\conf\sbtconfig.txt and set -Xmx1024M for sbt globally.
Problem sovled:
"C:\Program Files\Java\jdk1.8.0_144\bin\java.exe" -Dfile.encoding=UTF8 -Djline.terminal=none -Dsbt.log.noformat=true -Dsbt.global.base=C:\Users\USER\AppData\Local\Temp\sbt-global-pluginstub -Xms512M -Xmx1024M -Xss1M -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=2048M -classpath C:\Users\User\.IntelliJIdea2018.3\config\plugins\Scala\launcher\sbt-launch.jar xsbt.boot.Boot "project ji_approvalmachine_processes" run
Its not generic solution. But you can use relative paths or enviroment variables instead of the absolute path.
I am getting the following exception repeatedly each time I try to run the program.
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
I tried to increase my virtual memory (page size) and RAM size, but to no avail.
How can I eliminate this error?
Run the JVM with -XX:MaxHeapSize=512m (or any big number as you need) (or -Xmx512m for short)
This can also be caused by setting something too large on a 32-bit HotSpot vm, for example:
-Xms1536m -Xmx1536m
where this might/would work:
-Xms1336m -Xmx1336m
here is how to fix it:
Go to Start->Control Panel->System->Advanced(tab)->Environment Variables->System
Variables->New: Variable name: _JAVA_OPTIONS
Variable value: -Xmx512M
Variable name: Path
Variable value: %PATH%;C:\Program Files\Java\jre6\bin;F:\JDK\bin;
Change this to your appropriate path.
I ran into this when using javac, and it doesn't seem to pick up on the command line options,
-bash-3.2$ javac -Xmx256M HelloWorldApp.java
Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
so the solution here it so set _JAVA_OPTIONS
-bash-3.2$ export _JAVA_OPTIONS="-Xmx256M"
-bash-3.2$ javac HelloWorldApp.java
Picked up _JAVA_OPTIONS: -Xmx256M
And this compiles fine.
This happens to me on machines with a lot of RAM, but with lower memory ulimits. Java decides to allocate a big heap because it detects the ram in the machine, but it's not allowed to allocate it because of ulimits.
32-bit Java requires contiguous free space in memory to run. If you specify a large heap size, there may not be so much contiguous free space in memory even if you have much more free space available than necessary.
Installing a 64-bit version of Java helps in these cases, the contiguous memory requirements only applies to 32-bit Java.
Combined with -Xmx512M use -d64 to make sure you're running 64-bit VM. On a 64-bit machine I thought for sure I was running 64-bit virtual machine, but no. After installing 64-bit Java the -d64 option works and -Xmx allows much larger memory sizes.
java -d64 -Xmx512M mypackage.Test
Open gradle.properties file in android folder.
Replace this line:
org.gradle.jvmargs=-Xmx1536M
with:
org.gradle.jvmargs=-Xmx512m
Explanation:
Max limit from Gradle document:
If the requested build environment does not specify a maximum heap size, the Daemon will use up to 512MB of heap.
I got the same error and resolved this by configuring it in the run.conf.bat
Run the JVM with the configuring run.conf.bat in Jboss5x
If free memory is not available AS you are passing in the statement then please make changes in run.conf.bat
set "JAVA_OPTS=-Xms512m -Xmx512m -XX:MaxPermSize=256m"
I had similar issues. I had installed 32 bit version of Java on a 64 bit machine.
By uninstalling that version and installing 64 bit version of Java. I was able to resolve the issue.
I know there are a lot of answers here already, but none of them helped me. In the end I opened the file /etc/elasticsearch/jvm.options and changed:
-Xms2G
-Xmx2G
to
-Xms256M
-Xmx256M
That solved it for me. Hopefully this helps someone else here.
Suppose your class is called Test in package mypackage. Run your code like this:
java -Xmx1024m mypackage.Test
This will reserve 1024 MB of heap space for your code. If you want 512 MB, you can use:
java -Xmx512m mypackage.Test
Use little m in 1024m, 512m, etc
Sometimes, this error indicates that physical memory and swap on the server actually are fully utilized!
I was seeing this problem recently on a server running RedHat Enterprise Linux 5.7 with 48 GB of RAM. I found that even just running
java -version
caused the same error, which established that the problem was not specific to my application.
Running
cat /proc/meminfo
reported that MemFree and SwapFree were both well under 1% of the MemTotal and SwapTotal values, respectively:
MemTotal: 49300620 kB
MemFree: 146376 kB
...
SwapTotal: 4192956 kB
SwapFree: 1364 kB
Stopping a few other running applications on the machine brought the free memory figures up somewhat:
MemTotal: 49300620 kB
MemFree: 2908664 kB
...
SwapTotal: 4192956 kB
SwapFree: 1016052 kB
At this point, a new instance of Java would start up okay, and I was able to run my application.
(Obviously, for me, this was just a temporary solution; I still have an outstanding task to do a more thorough examination of the processes running on that machine to see if there's something that can be done to reduce the nominal memory utilization levels, without having to resort to stopping applications.)
Error :
For the error, "error occurred during initialization of vm could not reserve enough space for object heap jboss"
Root Cause :
Improper/insufficient memory allocation to our JVM as mentioned below.
e.g. JAVA_OPTS="-Xms1303m -Xmx1303m -XX:MaxPermSize=256m" in jboss-eap-6.2\bin\standalone.conf or "JAVA_OPTS=-Xms1G -Xmx1G -XX:MaxPermSize=256M" in jboss-eap-6.2\bin\standalone.conf.bat which is nothing but JVM memory allocation pool parameters.
Resolution :
Increase the heap size. To increase the heap size,
goto -> jboss-eap-6.2\bin\standalone.conf.bat or jboss-eap-6.2\bin\standalone.conf
change ->JAVA_OPTS="-Xms256m -Xmx512m -XX:MaxPermSize=256m" where -Xms is Minimum heap size and -Xmx is Maximum heap size.
Usually its not recommanded to have same size for min and max.
If you are running your application from eclipse,
Double click on the server
select 'open launch configuration' you will be redirected to the window 'Edit launch configuration properties'.
In this windown goto the tab '(x)=Arguments'.
In VM Arguments, define your heap size as mentioned below
"-Dprogram.name=JBossTools: JBoss EAP 6.1+ Runtime Server" -server -Xms256m -Xmx512m -XX:MaxPermSize=256m -Dorg.jboss.resolver.warning=true
I recently faced this issue. I have 3 java applications that start with 1024m or 1280m heap size.
Java is looking at the available space in swap, and if there is not enough memory available, the jvm exits.
To resolve the issue, I had to end several programs that had a large amount of virtual memory allocated.
I was running on x86-64 linux with a 64-bit jvm.
I had right amount of memory settings but for me it was using a 64bit intellij with 32 bit jvm. Once I switched to 64 bit VM, the error was gone.
If you're running 32bit JVM, change heap size to smaller would probabaly help. You can do this by passing args to java directly or through enviroment variables like following,
java -Xms128M -Xmx512M
JAVA_OPTS="-Xms128M -Xmx512M"
For 64bit JVM, bigger heap size like -Xms512M -Xmx1536M should work.
Run java -version or java -d32, java--d64 for Java7 to check which version you're running.
Assuming you have enough free memory and you setup you JVM arguments correctly, you might have a problem of memory fragmentation. Check Java maximum memory on Windows XP.
Anyway, here is how to fix it:
Go to Start->Control Panel->System->Advanced(tab)->Environment Variables->System Variables->New:
Variable name: _JAVA_OPTIONS
Variable value: -Xmx512M
OR
Change the ant call as shown as below.
<exec
**<arg value="-J-Xmx512m" />**
</exec>
It worked for me.
Error occurred during initialization of VM
Could not reserve enough space for 1572864KB object heap
I changed value of memory in settings.grade file
1536 to 512 and it helped
Go to Start->Control Panel->System->Advanced(tab)->Environment Variables->System Variables->New:
Variable name: _JAVA_OPTIONS
Variable value: -Xmx512M
In case you are running a java program:
- run your program in a terminal using the correct command for linux it would be 'java -jar myprogram.jar' and add -Xms256m -Xmx512m, for instance: 'java -jar myprogram.jar Xms256m -Xmx512m'
In case you are running a .sh script (linux, mac?) or a .bat script (windows) open the script and look for the java options if they are present and increase the memory.
If all of the above doesn't work, check your processes (ctrl+alt+delete on windows) (ps aux on linux/mac) and kill the processes which use allot of memory and are not necessary for your operating system! => Try to re-run your program.
In CASSANDRA_HOME/bin/cassandra.bat you would find following configuration
REM JVM Opts we'll use in legacy run or installation
set JAVA_OPTS=-ea^
-javaagent:"%CASSANDRA_HOME%\lib\jamm-0.3.0.jar"^
-Xms**2G**^
-Xmx**2G**^
You can reduce 2G to some smaller number for e.g. 1G or even lesser and it should work.
Same if you are running on unix box, change in .sh file appropriately.
I got the same error and it got resolved when I deleted temp files using %temp% and restarting eclipse.
Sometimes it relates as
$ sysctl vm.overcommit_memory
vm.overcommit_memory = 2
If you set it to:
$ sysctl vm.overcommit_memory=0
It should work.
Replace -Xmx2G with -Xms512M or any greater memory size in cassandra.bat file in cassandra bin directory.
In my case I couldn't increase org.gradle.jvmargs=-Xmx... in gradle.properties beyond 1GB. It didn't work because I had two Java installation on my machine, one 32 bit (Gradle was using this one) and the other 64 bit. I resolved the problem by adding JAVA_HOME environment variable pointing to 64 bit Java.
No need to do anything just chnage in POM file like below
<configuration>
<maxmemory>1024M</maxmemory>
</configuration>
For a minecraft server I'm trying to run the server with more than the standard 512MB RAM. This used to work for me but when I recently installed the server again it stopped working. I use the following command line to run the server:
java -Xms1024M -Xmx2048M -jar TekkitLite.jar
pause
But when I run this script I get the following error:
C:\Users\...\server>java -Xms1024M -Xmx2048M -jar TekkitLite.jar
Picked up_JAVA_OPTIONS: -Xmx512M
Error occured during initialization of VM
Incompatible minimum and maximum heap sizes specified
It seems to me it just doesn't pick up the Xmx argument or something, and I haven't found a solution to fix it anywhere.
My system:
OS: Windows 7 64bit
Java: java7u45(64bit)
RAM: 8G
If anyone has a solution, that would be awesome :)
It looks like you have -Xmx512M set in the environment variable _JAVA_OPTIONS. Clear that and try again.
In Windows 7, this is done like this:
Right-click Computer from the Start menu and choose Properties
Click Advanced system settings > Advanced tab
Click on Environment Variables, find _JAVA_OPTIONS, and select it.
Click Delete
Click OK, and you're done!
I'm trying to run several tools on a Windows Tomcat server . The server starts fine, and I can also see the manager page of Tomcat. But when I open a tool, an "OutOfMemoryError: PermGen space" occurs. I tried a lot with setting the MaxPermSize in my catalina.bat, this is my CATALINA_OPTS:
set CATALINA_OPTS="-Djava.awt.headless=true -Dfile.encoding=UTF-8 -server -Xms64m -Xmx512m -XX:PermSize=128m -XX:MaxPermSize=512m -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled"
When I run JVisualVM next to my Tomcat server, I can see that the arguments are picked up well:
But when I go to the monitor tab and check the PermGen, the max is 67mb instead of the 512 that I set my CATALINA_OPTS. So the arguments are set, but Tomcat ignores them..
I tried fixing this problem for a couple of hours already, but without success..
Anyone?
Remove the "" in the set and you are fine... Don't know why, yet. But that's the answer
set CATALINA_OPTS=-Djava.awt.headless=true -Dfile.encoding=UTF-8 -server -Xms64m -Xmx512m -XX:PermSize=128m -XX:MaxPermSize=512m -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled
-- edit
Btw, I think you want the UseConcMarkSweepGC as well, otherwise the other 2 CMS parameters won't do a thing (and one of the 2 is only needed, depening on the version of the JVM)
See
What does JVM flag CMSClassUnloadingEnabled actually do?
-- edit 2
This question was also asked for tomcat6 here: https://serverfault.com/questions/64894/setting-catalina-opts-for-tomcat6-on-windows-doesnt-work
Too bad the blogger doesn't explain why you don't need to use quotes in windows.
http://javahowto.blogspot.nl/2006/06/6-common-errors-in-setting-java-heap.html
But I think it's because with the quotes it's seen as one big argument. The only thing that I don't understand is why the jvisualvm pretends you set it correctly. But I guess the display of the arguments doesn't actually look at how it's set in the JVM, but only formats the arguments nicely.
I have JBOSS installed in my Windows 7 machine., I can start JBOSS from Eclipse but it doesn't publish and when I try to run the standalone.bat file from the Bin directory it throws this error ,
JAVA_OPTS: -client -Dprogram.name=standalone.bat **-Xms1303M -Xmx1303M** -XX:MaxPe
rmSize=256M -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInter
val=3600000 -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -D
jboss.modules.system.pkgs=org.jboss.byteman -Djboss.server.default.config=standa
lone.xml
**Error occurred during initialization of VM**
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
I did research the forum and many are suggesting to change the -Xms1303M to -Xms256M ., I edited the standalone.conf file in an editor but it is not getting reflected and getting the same error again.
Could someone please guide me ?
Most likely, you are using or running jboss on a 32 bit jdk and the memory params are out of range or exceed the limits of a 32 bit jdk. Either upgrade to a 64 bit jdk or add this line in your run.conf in jboss/bin, remove the jvm args from your command line and see if jboss starts.
set "JAVA_OPTS=-Xms128M -Xmx512M -XX:MaxPermSize=256M"
In Windows, it is the standalone.bat file and not the standalone.conf file that must be modified with the new JAVA_OPTS environment variable.