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ASF GitHub Bot commented on PARQUET-1711: ----------------------------------------- jinyius commented on code in PR #995: URL: https://github.com/apache/parquet-mr/pull/995#discussion_r990914702 ########## parquet-protobuf/src/test/resources/Trees.proto: ########## @@ -0,0 +1,37 @@ +// +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. +// + +syntax = "proto3"; + +package Trees; + +import "google/protobuf/any.proto"; + +option java_package = "org.apache.parquet.proto.test"; + +message BinaryTree { + google.protobuf.Any value = 1; Review Comment: i think the existing non-recursive proto tests exercise the existing and newly added (the skipping behavior) code paths. > [parquet-protobuf] stack overflow when work with well known json type > --------------------------------------------------------------------- > > Key: PARQUET-1711 > URL: https://issues.apache.org/jira/browse/PARQUET-1711 > Project: Parquet > Issue Type: Bug > Affects Versions: 1.10.1 > Reporter: Lawrence He > Priority: Major > > Writing following protobuf message as parquet file is not possible: > {code:java} > syntax = "proto3"; > import "google/protobuf/struct.proto"; > package test; > option java_outer_classname = "CustomMessage"; > message TestMessage { > map<string, google.protobuf.ListValue> data = 1; > } {code} > Protobuf introduced "well known json type" such like > [ListValue|https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#listvalue] > to work around json schema conversion. > However writing above messages traps parquet writer into an infinite loop due > to the "general type" support in protobuf. Current implementation will keep > referencing 6 possible types defined in protobuf (null, bool, number, string, > struct, list) and entering infinite loop when referencing "struct". > {code:java} > java.lang.StackOverflowErrorjava.lang.StackOverflowError at > java.base/java.util.Arrays$ArrayItr.<init>(Arrays.java:4418) at > java.base/java.util.Arrays$ArrayList.iterator(Arrays.java:4410) at > java.base/java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1044) > at > java.base/java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1043) > at > org.apache.parquet.proto.ProtoSchemaConverter.convertFields(ProtoSchemaConverter.java:64) > at > org.apache.parquet.proto.ProtoSchemaConverter.addField(ProtoSchemaConverter.java:96) > at > org.apache.parquet.proto.ProtoSchemaConverter.convertFields(ProtoSchemaConverter.java:66) > at > org.apache.parquet.proto.ProtoSchemaConverter.addField(ProtoSchemaConverter.java:96) > at > org.apache.parquet.proto.ProtoSchemaConverter.convertFields(ProtoSchemaConverter.java:66) > at > org.apache.parquet.proto.ProtoSchemaConverter.addField(ProtoSchemaConverter.java:96) > at > org.apache.parquet.proto.ProtoSchemaConverter.convertFields(ProtoSchemaConverter.java:66) > at > org.apache.parquet.proto.ProtoSchemaConverter.addField(ProtoSchemaConverter.java:96) > at > org.apache.parquet.proto.ProtoSchemaConverter.convertFields(ProtoSchemaConverter.java:66) > at > org.apache.parquet.proto.ProtoSchemaConverter.addField(ProtoSchemaConverter.java:96) > {code} -- This message was sent by Atlassian Jira (v8.20.10#820010)