Andong Zhan created ARROW-6500:
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Summary: [Java] How to use RootAllocator in a low memory setting?
Key: ARROW-6500
URL: https://issues.apache.org/jira/browse/ARROW-6500
Project: Apache Arrow
Issue Type: Bug
Components: Java
Affects Versions: 0.13.0
Reporter: Andong Zhan
When I run this simple code with JVM setting: "-Xmx64m"
{code:java}
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);
}
}
{code}
and got the following error
{code:java}
Picked up JAVA_TOOL_OPTIONS:
-Djavax.net.ssl.trustStore=/etc/pki/ca-trust/extracted/java/cacertsPicked up
JAVA_TOOL_OPTIONS:
-Djavax.net.ssl.trustStore=/etc/pki/ca-trust/extracted/java/cacertsException 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
{code}
So how to use RootAllocator in such low memory case?
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