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Xuefu Zhang commented on HIVE-11269: ------------------------------------ You seemed hitting a new problem. In either case it's best to provide a repro case. Otherwise, it's hard to find the problem and so the fix. > Intermittent bug with kryo serializers > -------------------------------------- > > Key: HIVE-11269 > URL: https://issues.apache.org/jira/browse/HIVE-11269 > Project: Hive > Issue Type: Bug > Affects Versions: 1.3.0 > Reporter: Soundararajan Velu > > getting kryo serialization exception when running large queries, this works > fine on hive 0.14, > and works fine on 1.3.0 with the following flags, > set hive.plan.serialization.format=kryo; > set hive.exec.parallel=false; > set hive.limit.optimize.enable=false; > set hive.optimize.metadataonly=false; > set hive.optimize.reducededuplication=false; > set hive.optimize.sort.dynamic.partition=false; > set hive.stats.fetch.partition.stats=false; > set hive.vectorized.execution.enabled=false; > set hive.vectorized.execution.reduce.enabled=false; > set hive.cbo.enable=false; > set hive.compute.query.using.stats=false; > set hive.multigroupby.singlereducer=false; > set hive.optimize.ppd=false; > set hive.optimize.skewjoin.compiletime=false; > set hive.optimize.skewjoin=false; > set hive.optimize.union.remove=false; > set hive.mapred.mode=nonstrict; > set hive.auto.convert.join.noconditionaltask=false; > set hive.optimize.sort.dynamic.partition=false; > set hive.rpc.query.plan=true; > StackTrace > colExprMap (org.apache.hadoop.hive.ql.exec.SelectOperator) > childOperators (org.apache.hadoop.hive.ql.exec.JoinOperator) > reducer (org.apache.hadoop.hive.ql.plan.ReduceWork) > at > org.apache.hadoop.hive.ql.exec.Utilities.getBaseWork(Utilities.java:462) > at > org.apache.hadoop.hive.ql.exec.Utilities.getReduceWork(Utilities.java:309) > at > org.apache.hadoop.hive.ql.exec.mr.ExecReducer.configure(ExecReducer.java:112) > ... 14 more > Caused by: org.apache.hive.com.esotericsoftware.kryo.KryoException: > java.lang.NullPointerException > Serialization trace: > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > chidren (org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc) > colExprMap (org.apache.hadoop.hive.ql.exec.SelectOperator) > childOperators (org.apache.hadoop.hive.ql.exec.JoinOperator) > reducer (org.apache.hadoop.hive.ql.plan.ReduceWork) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:139) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.MapSerializer.read(MapSerializer.java:17) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:776) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:507) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:672) > at > org.apache.hadoop.hive.ql.exec.Utilities.deserializeObjectByKryo(Utilities.java:1081) > at > org.apache.hadoop.hive.ql.exec.Utilities.deserializePlan(Utilities.java:972) > at > org.apache.hadoop.hive.ql.exec.Utilities.deserializePlan(Utilities.java:986) > at > org.apache.hadoop.hive.ql.exec.Utilities.getBaseWork(Utilities.java:435) > ... 16 more > Caused by: java.lang.NullPointerException > at > java.util.ArrayList$SubList.checkForComodification(ArrayList.java:1168) > at java.util.ArrayList$SubList.size(ArrayList.java:998) > at java.util.AbstractList.add(AbstractList.java:108) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:112) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:18) > at > org.apache.hive.com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:694) > at > org.apache.hive.com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:106) > ... 109 more -- This message was sent by Atlassian JIRA (v6.3.4#6332)