Jim Northrup created ARROW-6202: ----------------------------------- Summary: Exception in thread "main" org.apache.arrow.memory.OutOfMemoryException: Unable to allocate buffer of size 4 due to memory limit. Current allocation: 2147483646 Key: ARROW-6202 URL: https://issues.apache.org/jira/browse/ARROW-6202 Project: Apache Arrow Issue Type: Bug Affects Versions: 0.14.1 Reporter: Jim Northrup
jdbc query results exceed native heap when using generous -Xmx settings. for roughly 800 megabytes of csv/flatfile resultset, arrow is unable to house the contents in RAM long enough to persist to disk, without explicit knowledge beyond unit test sample code. source: https://github.com/jnorthrup/jdbc2json/blob/master/src/main/java/com/fnreport/QueryToFeather.kt#L83 {code:java} Exception in thread "main" org.apache.arrow.memory.OutOfMemoryException: Unable to allocate buffer of size 4 due to memory limit. Current allocation: 2147483646 at org.apache.arrow.memory.BaseAllocator.buffer(BaseAllocator.java:307) at org.apache.arrow.memory.BaseAllocator.buffer(BaseAllocator.java:277) at org.apache.arrow.adapter.jdbc.JdbcToArrowUtils.updateVector(JdbcToArrowUtils.java:610) at org.apache.arrow.adapter.jdbc.JdbcToArrowUtils.jdbcToFieldVector(JdbcToArrowUtils.java:462) at org.apache.arrow.adapter.jdbc.JdbcToArrowUtils.jdbcToArrowVectors(JdbcToArrowUtils.java:396) at org.apache.arrow.adapter.jdbc.JdbcToArrow.sqlToArrow(JdbcToArrow.java:225) at org.apache.arrow.adapter.jdbc.JdbcToArrow.sqlToArrow(JdbcToArrow.java:187) at org.apache.arrow.adapter.jdbc.JdbcToArrow.sqlToArrow(JdbcToArrow.java:156) at com.fnreport.QueryToFeather$Companion.go(QueryToFeather.kt:83) at com.fnreport.QueryToFeather$Companion$main$1.invokeSuspend(QueryToFeather.kt:95) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33) at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:241) at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:270) at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:79) at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking(Builders.kt:54) at kotlinx.coroutines.BuildersKt.runBlocking(Unknown Source) at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$default(Builders.kt:36) at kotlinx.coroutines.BuildersKt.runBlocking$default(Unknown Source) at com.fnreport.QueryToFeather$Companion.main(QueryToFeather.kt:93) at com.fnreport.QueryToFeather.main(QueryToFeather.kt) {code} -- This message was sent by Atlassian JIRA (v7.6.14#76016)