[IMPALA-10087] IMPALA-6050 causes alluxio not to be supported

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 3.3.0, Impala 3.4.0
• Fix Version/s: Impala 4.0.0
• Component/s: Frontend
• Labels: feature
• Epic Color: ghx-label-12
• Assignee: abeltian
• Reporter: abeltian
• Created: 17/Aug/20 03:56
• Updated: 03/Sep/20 06:20
• Resolved: 03/Sep/20 06:17

Description

IMPALA-6050 causes alluxio not to be supported.

if (sampledFiles != null) {
    numPartitionsPerFs_ = sampledFiles.keySet().stream().collect(Collectors.groupingBy(
        SampledPartitionMetadata::getPartitionFsType, Collectors.counting()));    
} else {
  numPartitionsPerFs_.putAll(partitions_.stream().collect(  
      Collectors.groupingBy(FeFsPartition::getFsType, Collectors.counting())));
}

public enum FsType {
    ADLS,
    HDFS,
    LOCAL,
    S3,
    OZONE;
private static final Map<String, FsType> SCHEME_TO_FS_MAPPING =
    ImmutableMap.<String, FsType>builder()
       .put("abfs", ADLS)
       .put("abfss", ADLS)
       .put("adl", ADLS)
       .put("file", LOCAL)
       .put("hdfs", HDFS)
       .put("s3a", S3) 
       .put("o3fs", OZONE)
       .build();

10:58:47.793 AM INFO cc:288 10:58:47.793 AM INFO cc:288 0543f5853d94c127:7a4e836900000000] java.lang.NullPointerException: element cannot be mapped to a null key
 at java.util.Objects.requireNonNull(Objects.java:228) at java.util.stream.Collectors.lambda$groupingBy$45(Collectors.java:907)
 at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
 at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
 at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
 at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) at org.apache.impala.planner.HdfsScanNode.computeScanRangeLocations(HdfsScanNode.java:822)
 at org.apache.impala.planner.HdfsScanNode.init(HdfsScanNode.java:381)

 

Issue Links

• Blocked: IMPALA-6050 Query profiles should clearly indicate storage layer(s) used