setting JVM heap size from sbt Console in IntelliJ

Question

I get this error when running my app in intelliJ:

[error] (ABCThread-1) java.lang.OutOfMemoryError: Java heap space

Therefore, I am trying to set the heap size when i run my scala app from SBT Console / SBT Action:

I use the following : found here: Increase JVM heap size for Scala?

However i get the error:

scala>  -J-Xmx2g
<console>:12: error: object - is not a member of package scala
       scala -J-Xmx2g
             ^
<console>:12: error: not found: value J
       scala -J-Xmx2g
              ^
<console>:12: error: not found: value Xmx2g
       scala -J-Xmx2g
                ^

any idea? thnks

set SBT_OPTS may help for example `export SBT_OPTS="-Xmx2048m -XX:MetaspaceSize=512m -XX:MaxMetaspaceSize=768m -Xss16m` — shengshan zhang, Jun 06 '18 at 02:11
@shengshanzhang i get this error : `:13: error: not found: value export export SBT_OPTS` same thing if i use `set SBT_OPTS` I get `:13: error: not found: value set set SBT_OPTS` — uniXVanXcel, Jun 06 '18 at 13:25
I tried setting SBT_OPTS in the environment variable and it worked like charm for me: SBT_OPTS: -Dsbt.override.build.repos=true -Xmx2048m -XX:MetaspaceSize=512m -XX:MaxMetaspaceSize=768m -Xss16m .From Intellij, you can follow the documentation: https://www.jetbrains.com/help/idea/increasing-memory-heap.html — Sangeeta, Jun 10 '20 at 07:16

score 7 · Answer 1 · answered Jun 06 '18 at 13:31

7

the position is where you should input the VM parameters if you use IDEA

answered Jun 06 '18 at 13:31

shengshan zhang

538
8
16

do you set fork := true in the sbt shell ? – shengshan zhang Jun 06 '18 at 14:12
i am using the sbt Console - the sbt Shell gives me some dependencies errors - So, in the sbt Console, no iam not using `set fork := true` – uniXVanXcel Jun 06 '18 at 14:46
actually set and export are not part of the commands available to sbt Console – uniXVanXcel Jun 06 '18 at 14:52

score 0 · Answer 2 · answered Jun 06 '18 at 06:58

1.Edit the VM Options field in the run/debug configuration of the app that you start. vmoptions file adjusts the memory used by IntelliJ, If I am not wrong, you are having a shortage of memory of JRE that is launched by IntelliJ to execute your app. Adjust the memory setting in VM options part of the Run/Debug configuration,for eg:https://i.stack.imgur.com/8U65i.jpg config setting

2.If step-1 not solved your problem switch to 64-bit JDK for IntelliJ IDEA if you are not using currently.

thanks i am using the 64-bit JDK but I tried option 1 before but not working either. — uniXVanXcel, Jun 06 '18 at 13:30

Praseeth S · Answer 3 · 2019-07-09T19:10:57.617

0

Go to IntelliJ preferences > Build,Execution,Deployement > compiler. You'll find an option to set heap size as Build process heap size(Mbytes):. Change it to some higher value. It may solve the issue.

edited Jul 09 '19 at 19:10

answered Jul 08 '19 at 18:37

Praseeth S

111
1
6

setting JVM heap size from sbt Console in IntelliJ

3 Answers3