[ARROW-6500] [Java] How to use RootAllocator in a low memory setting?

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.13.0
• Component/s: Java
• External issue URL: https://github.com/apache/arrow/issues/22869
• Assignee: Unassigned
• Reporter: Andong Zhan
• Created: 09/Sep/19 22:32
• Updated: 11/Jan/23 07:47

Description

When I run this simple code with JVM setting: "-Xmx64m"

package com.snowflake;
import org.apache.arrow.memory.RootAllocator;

public class TestArrow
{
  public static void main(String args[]) throws Exception
  {
    new RootAllocator(Integer.MAX_VALUE);
  }
}

and got the following error

Picked up JAVA_TOOL_OPTIONS: -Djavax.net.ssl.trustStore=/etc/pki/ca-trust/extracted/java/cacerts
Exception in thread "main" java.lang.ExceptionInInitializerError 
at org.apache.arrow.memory.BaseAllocator.createEmpty(BaseAllocator.java:263) 
at org.apache.arrow.memory.BaseAllocator.<init>(BaseAllocator.java:89) 
at org.apache.arrow.memory.RootAllocator.<init>(RootAllocator.java:34) 
at org.apache.arrow.memory.RootAllocator.<init>(RootAllocator.java:30) 
at com.snowflake.TestArrow.main(TestArrow.java:13)

Caused by: java.lang.NullPointerException 
at io.netty.buffer.PooledByteBufAllocatorL$InnerAllocator.<init>(PooledByteBufAllocatorL.java:145) 
at io.netty.buffer.PooledByteBufAllocatorL.<init>(PooledByteBufAllocatorL.java:49) 
at org.apache.arrow.memory.AllocationManager.<clinit>(AllocationManager.java:61) ... 5 more
Process finished with exit code 1

So how to use RootAllocator in such low memory case?