[
https://issues.apache.org/jira/browse/DRILL-7934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17354095#comment-17354095
]
ASF GitHub Bot commented on DRILL-7934:
---------------------------------------
vvysotskyi commented on a change in pull request #2238:
URL: https://github.com/apache/drill/pull/2238#discussion_r642113191
##########
File path:
exec/java-exec/src/test/java/org/apache/drill/exec/store/parquet/TestParquetScan.java
##########
@@ -51,4 +53,57 @@ public void testSuccessFile() throws Exception {
.build()
.run();
}
+
+ @Test
+ public void testTypeNull() throws Exception {
+ /* the `features` schema is:
+ optional group features {
+ required int32 type (INTEGER(8,true));
+ optional int32 size;
+ optional group indices (LIST) {
+ repeated group list {
+ required int32 element;
+ }
+ }
+ optional group values (LIST) {
+ repeated group list {
+ required double element;
+ }
+ }
+ }
+ */
+ String sql = "SELECT * FROM cp.`parquet/test_type_null.parquet`";
+ testBuilder()
+ .sqlQuery(sql)
+ .unOrdered()
+ .baselineColumns("label", "features")
+ .baselineValues(0.0d, new JsonStringHashMap<String, Object>() {{
+ put("type", 1);
+ put("indices", new JsonStringArrayList<Double>());
+ put("values", new JsonStringArrayList<Double>() {{
+ add(112.0d);
+ add(213.0d);
+ add(213.0d);
+ }});
+ }})
+ .baselineValues(0.0d, new JsonStringHashMap<String, Object>() {{
+ put("type", 1);
+ put("indices", new JsonStringArrayList<Double>());
+ put("values", new JsonStringArrayList<Double>() {{
+ add(213.0d);
+ add(123.0d);
+ add(123.0d);
+ }});
+ }})
+ .baselineValues(2.0d, new JsonStringHashMap<String, Object>() {{
+ put("type", 1);
+ put("indices", new JsonStringArrayList<Double>());
+ put("values", new JsonStringArrayList<Double>() {{
+ add(333.0d);
+ add(333.0d);
+ add(333.0d);
+ }});
+ }})
Review comment:
Please use `TestBuilder.listOf()` and `TestBuilder.mapOf()` methods, it
will be mor ecompact:
```suggestion
.baselineValues(0.0d,
mapOf(
"type", 1,
"indices", listOf(),
"values", listOf(112.0d, 213.0d, 213.0d)))
.baselineValues(0.0d,
mapOf(
"type", 1,
"indices", listOf(),
"values", listOf(213.0d, 123.0d, 123.0d)))
.baselineValues(2.0d,
mapOf(
"type", 1,
"indices", listOf(),
"values", listOf(333.0d, 333.0d, 333.0d)))
```
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> NullPointerException error when reading parquet files
> -----------------------------------------------------
>
> Key: DRILL-7934
> URL: https://issues.apache.org/jira/browse/DRILL-7934
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Parquet
> Affects Versions: 1.18.0
> Environment: Drill 1.18
> Ambari 2.7.4
> Spark 3.0.2
> Reporter: cdmikechen
> Priority: Critical
> Fix For: 1.19.0
>
> Attachments:
> part-00000-e849bed7-5cc2-480c-96d8-3fe5f9b4294a-c000.snappy.parquet,
> part-00001-e849bed7-5cc2-480c-96d8-3fe5f9b4294a-c000.snappy.parquet
>
>
> I create a dataset using spark ml, when I use drill 1.18 to query this
> dataset folder, it report error this:
> {code:java}
> [Error Id: 92d3f331-ffca-46b5-a64c-87453b88a108 on xxx.xxx.xxx:31010]
> at
> org.apache.drill.common.exceptions.UserException$Builder.build(UserException.java:657)
> at
> org.apache.drill.exec.work.foreman.Foreman$ForemanResult.close(Foreman.java:788)
> at
> org.apache.drill.exec.work.foreman.QueryStateProcessor.checkCommonStates(QueryStateProcessor.java:322)
> at
> org.apache.drill.exec.work.foreman.QueryStateProcessor.planning(QueryStateProcessor.java:216)
> at
> org.apache.drill.exec.work.foreman.QueryStateProcessor.moveToState(QueryStateProcessor.java:76)
> at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:300)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: org.apache.drill.exec.work.foreman.ForemanException: Unexpected
> exception during fragment initialization: Error while applying rule
> DrillPushProjectIntoScanRule:enumerable, args
> [rel#478:LogicalProject.NONE.ANY([]).[](input=RelSubset#477,label=$1),
> rel#452:EnumerableTableScan.ENUMERABLE.ANY([]).[](table=[hdfs_dataset.default,
> /home/spark/dataset/default/test2/*.parquet])]
> at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:301)
> ... 3 common frames omitted
> Caused by: java.lang.RuntimeException: Error while applying rule
> DrillPushProjectIntoScanRule:enumerable, args
> [rel#478:LogicalProject.NONE.ANY([]).[](input=RelSubset#477,label=$1),
> rel#452:EnumerableTableScan.ENUMERABLE.ANY([]).[](table=[hdfs_dataset.default,
> /home/spark/dataset/default/test2/*.parquet])]
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:235)
> at
> org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:633)
> at
> org.apache.calcite.tools.Programs$RuleSetProgram.run(Programs.java:327)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.transform(DefaultSqlHandler.java:405)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.transform(DefaultSqlHandler.java:351)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToRawDrel(DefaultSqlHandler.java:245)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.convertToDrel(DefaultSqlHandler.java:308)
> at
> org.apache.drill.exec.planner.sql.handlers.DefaultSqlHandler.getPlan(DefaultSqlHandler.java:173)
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.getQueryPlan(DrillSqlWorker.java:283)
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.getPhysicalPlan(DrillSqlWorker.java:163)
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.convertPlan(DrillSqlWorker.java:140)
> at
> org.apache.drill.exec.planner.sql.DrillSqlWorker.getPlan(DrillSqlWorker.java:93)
> at org.apache.drill.exec.work.foreman.Foreman.runSQL(Foreman.java:593)
> at org.apache.drill.exec.work.foreman.Foreman.run(Foreman.java:274)
> ... 3 common frames omitted
> Caused by: java.lang.NullPointerException: null
> at
> org.apache.drill.exec.store.parquet.ParquetGroupScanStatistics.checkForPartitionColumn(ParquetGroupScanStatistics.java:186)
> at
> org.apache.drill.exec.store.parquet.ParquetGroupScanStatistics.collect(ParquetGroupScanStatistics.java:119)
> at
> org.apache.drill.exec.store.parquet.ParquetGroupScanStatistics.<init>(ParquetGroupScanStatistics.java:59)
> at
> org.apache.drill.exec.store.parquet.BaseParquetMetadataProvider.getParquetGroupScanStatistics(BaseParquetMetadataProvider.java:293)
> at
> org.apache.drill.exec.store.parquet.BaseParquetMetadataProvider.getTableMetadata(BaseParquetMetadataProvider.java:249)
> at
> org.apache.drill.exec.store.parquet.BaseParquetMetadataProvider.initializeMetadata(BaseParquetMetadataProvider.java:203)
> at
> org.apache.drill.exec.store.parquet.BaseParquetMetadataProvider.init(BaseParquetMetadataProvider.java:170)
> at
> org.apache.drill.exec.metastore.store.parquet.ParquetTableMetadataProviderImpl.<init>(ParquetTableMetadataProviderImpl.java:95)
> at
> org.apache.drill.exec.metastore.store.parquet.ParquetTableMetadataProviderImpl.<init>(ParquetTableMetadataProviderImpl.java:48)
> at
> org.apache.drill.exec.metastore.store.parquet.ParquetTableMetadataProviderImpl$Builder.build(ParquetTableMetadataProviderImpl.java:415)
> at
> org.apache.drill.exec.store.parquet.ParquetGroupScan.<init>(ParquetGroupScan.java:150)
> at
> org.apache.drill.exec.store.parquet.ParquetGroupScan.<init>(ParquetGroupScan.java:120)
> at
> org.apache.drill.exec.store.parquet.ParquetFormatPlugin.getGroupScan(ParquetFormatPlugin.java:202)
> at
> org.apache.drill.exec.store.parquet.ParquetFormatPlugin.getGroupScan(ParquetFormatPlugin.java:79)
> at
> org.apache.drill.exec.store.dfs.FileSystemPlugin.getPhysicalScan(FileSystemPlugin.java:226)
> at
> org.apache.drill.exec.store.dfs.FileSystemPlugin.getPhysicalScan(FileSystemPlugin.java:209)
> at
> org.apache.drill.exec.planner.logical.DrillTable.getGroupScan(DrillTable.java:119)
> at
> org.apache.drill.exec.planner.logical.DrillPushProjectIntoScanRule.canPushProjectIntoScan(DrillPushProjectIntoScanRule.java:190)
> at
> org.apache.drill.exec.planner.logical.DrillPushProjectIntoScanRule.onMatch(DrillPushProjectIntoScanRule.java:107)
> at
> org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:208)
> ... 16 common frames omitted
> {code}
> It is same like issue https://issues.apache.org/jira/browse/DRILL-7769.
> I add some log information and found this:
> {code:java}
> TRACE o.a.d.e.s.p.ParquetGroupScanStatistics - check schema path
> `features`.`values`.`list`.`element` with major type null
> current partitionColTypeMap = {`features`.`indices`.`list`.`element`=null,
> `features`.`type`=minor_type: TINYINT
> mode: REQUIRED
> , `features`.`size`=minor_type: INT
> mode: OPTIONAL
> }
> 2021-05-25 15:39:21,066 [1f535658-f840-9f0e-1a7b-21080514bb7b:foreman] TRACE
> o.a.d.e.s.p.ParquetGroupScanStatistics - check schema path `label` with major
> type minor_type: FLOAT8
> mode: REQUIRED
> current partitionColTypeMap = {`features`.`indices`.`list`.`element`=null,
> `features`.`type`=minor_type: TINYINT
> mode: REQUIRED
> , `features`.`size`=minor_type: INT
> mode: OPTIONAL
> }
> 2021-05-25 15:39:21,066 [1f535658-f840-9f0e-1a7b-21080514bb7b:foreman] TRACE
> o.a.d.e.s.p.ParquetGroupScanStatistics - check schema path `features`.`size`
> with major type minor_type: INT
> mode: OPTIONAL
> current partitionColTypeMap = {`features`.`indices`.`list`.`element`=null,
> `features`.`type`=minor_type: TINYINT
> mode: REQUIRED
> , `features`.`size`=minor_type: INT
> mode: OPTIONAL
> }
> {code}
> So that there is some condition major type is null, if drill use this code,
> it will catch NullPointerException error:
> {code:java}
> TypeProtos.MajorType majorType = columnMetadata != null ?
> columnMetadata.majorType() : null; # 121
> !partitionColTypeMap.get(schemaPath).equals(type) # 189
> {code}
> we need to change null to *org.apache.drill.common.types.Types.NULL* to avoid
> NullPointerException error
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