Java OutOfMemoryError in Corda 3

Question

When running a Corda 3 node, I get the following exception:

Exception in thread “main” java.lang.OutOfMemoryError: Java heap space

How can I increase the amount of memory available to the node?

Joel · Accepted Answer · 2019-02-08 05:37:54Z

2

You can run a node with additional memory by running the node's corda JAR from the command line with the following flag:

java -Xmx2048m -jar corda.jar

You can also specify that the node should be run with extra memory in the node's node.conf configuration file:

myLegalName="O=PartyA,L=London,C=GB"
...
jvmArgs=["-Xmx8G"]

Finally, you can specify that the node should be run with extra memory in the deployNodes task:

task deployNodes(type: net.corda.plugins.Cordform, dependsOn: ['jar']) {
    directory "./build/nodes"
    node {
        name "O=Node,L=London,C=GB"
        ...
        extraConfig = [
            jvmArgs : [ "-Xmx1g"]
        ]
    }
}

See https://docs.corda.net/running-a-node.html#starting-an-individual-corda-node.

edited Feb 8, 2019 at 5:37

answered Mar 20, 2018 at 18:10

Joel

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3 Comments

vfalcao Over a year ago

We have tried to use this extraConfig = [ jvmArgs : [ "-Xmx1g" ] ] in the build.gradle, and the node generation seems to work fine. But when I try to start the node, I receive the following error: [ERROR] 13:01:06-0200 [main] internal.Node.run - Unknown configuration keys: [jvmArgs]. In node.conf, the snippet is jvmArgs=[ "-Xms2G", "-Xmx8G" ]. What is the correct approach to get this node memory configuration working ?

Joel Over a year ago

It works for me. If in deployNodes I add extraConfig = [ jvmArgs: [ "-Xms2G", "-Xmx8G" ]], the node.conf gets jvmArgs=["-Xms2G", "-Xmx8G"] and the node runs successfully.

vfalcao Over a year ago

Quicksilver:Test vfalcao$ java -jar corda.jar --version Corda Enterprise Edition 3.1 Revision c9b23a4400923a5cfe88271ce2fedd75740eac40 Platform Version 3 Quicksilver:Test vfalcao$ java -jar corda.jar [ERROR] 13:01:06-0200 [main] internal.Node.run - Unknown configuration keys: [jvmArgs].

-- I still got the error. Any pointers for get us in the right direction ?

Manos Batsis · Accepted Answer · 2019-10-16 08:55:24Z

1

Adding extraConfig in Gradle's Cordform task worked for me with Corda Enterprise 4.2:

task deployNodes(type: net.corda.plugins.Cordform) {
    nodeDefaults {
        // ...
        extraConfig = [ custom: [jvmArgs: [ "-Xms8G", "-Xmx8G", "-XX:+UseG1GC" ]] ]
    }
    // ...
}

The resulting node.conf fragment is:

custom {
    jvmArgs=[
        "-Xms8G",
        "-Xmx8G",
        "-XX:+UseG1GC"
    ]
}

answered Oct 16, 2019 at 8:55

Manos Batsis

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Comments

devman · Accepted Answer · 2019-06-06 15:18:08Z

0

Adding following block in "task deployNodes" section worked for me -

extraConfig = [ jvmArgs : [ "-Xmx1g"] ]

answered Jun 6, 2019 at 15:18

devman

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