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Andong Zhan updated ARROW-6500: ------------------------------- Description: 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/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$InnerAllocator.<init>(PooledByteBufAllocatorL.java:145) at io.netty.buffer.PooledByteBufAllocatorL.<init>(PooledByteBufAllocatorL.java:49) at org.apache.arrow.memory.AllocationManager.<clinit>(AllocationManager.java:61) ... 5 more Process finished with exit code 1 {code} So how to use RootAllocator in such low memory case? was: When I run this simple code with JVM setting: "-Xmx64m" {code:java} package com.snowflake; import org.apache.arrow.memory.RootAllocator; public class TestArrow { public static void main(String args[]) throws Exception { new RootAllocator(Integer.MAX_VALUE); } } {code} and got the following error {code:java} Picked up JAVA_TOOL_OPTIONS: -Djavax.net.ssl.trustStore=/etc/pki/ca-trust/extracted/java/cacertsPicked up JAVA_TOOL_OPTIONS: -Djavax.net.ssl.trustStore=/etc/pki/ca-trust/extracted/java/cacertsException in thread "main" java.lang.ExceptionInInitializerError at org.apache.arrow.memory.BaseAllocator.createEmpty(BaseAllocator.java:263) at org.apache.arrow.memory.BaseAllocator.<init>(BaseAllocator.java:89) at org.apache.arrow.memory.RootAllocator.<init>(RootAllocator.java:34) at org.apache.arrow.memory.RootAllocator.<init>(RootAllocator.java:30) at com.snowflake.TestArrow.main(TestArrow.java:13)Caused by: java.lang.NullPointerException at io.netty.buffer.PooledByteBufAllocatorL$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? > [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 > Priority: Major > > 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/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 > {code} > So how to use RootAllocator in such low memory case? -- This message was sent by Atlassian Jira (v8.3.2#803003)