[jira] [Created] (HIVE-26928) LlapIoImpl::getParquetFooterBuffersFromCache throws exception when metadata cache is disabled

["Rajesh Balamohan (Jira)" <ji...@apache.org>]

Rajesh Balamohan created HIVE-26928:
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             Summary: LlapIoImpl::getParquetFooterBuffersFromCache throws exception when metadata cache is disabled
                 Key: HIVE-26928
                 URL: https://issues.apache.org/jira/browse/HIVE-26928
             Project: Hive
          Issue Type: Improvement
          Components: Iceberg integration
            Reporter: Rajesh Balamohan


When metadata / LLAP cache is disabled, "iceberg + parquet" throws the following error.

It should check for "metadatacache" correctly or fix it in LlapIoImpl.

 
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Caused by: java.lang.NullPointerException: Metadata cache must not be null
    at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:897)
    at org.apache.hadoop.hive.llap.io.api.impl.LlapIoImpl.getParquetFooterBuffersFromCache(LlapIoImpl.java:467)
    at org.apache.iceberg.mr.hive.vector.HiveVectorizedReader.parquetRecordReader(HiveVectorizedReader.java:227)
    at org.apache.iceberg.mr.hive.vector.HiveVectorizedReader.reader(HiveVectorizedReader.java:162)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.apache.iceberg.common.DynMethods$UnboundMethod.invokeChecked(DynMethods.java:65)
    at org.apache.iceberg.common.DynMethods$UnboundMethod.invoke(DynMethods.java:77)
    at org.apache.iceberg.common.DynMethods$StaticMethod.invoke(DynMethods.java:196)
    at org.apache.iceberg.mr.mapreduce.IcebergInputFormat$IcebergRecordReader.openVectorized(IcebergInputFormat.java:331)
    at org.apache.iceberg.mr.mapreduce.IcebergInputFormat$IcebergRecordReader.open(IcebergInputFormat.java:377)
    at org.apache.iceberg.mr.mapreduce.IcebergInputFormat$IcebergRecordReader.nextTask(IcebergInputFormat.java:270)
    at org.apache.iceberg.mr.mapreduce.IcebergInputFormat$IcebergRecordReader.initialize(IcebergInputFormat.java:266)
    at org.apache.iceberg.mr.mapred.AbstractMapredIcebergRecordReader.<init>(AbstractMapredIcebergRecordReader.java:40)
    at org.apache.iceberg.mr.hive.vector.HiveIcebergVectorizedRecordReader.<init>(HiveIcebergVectorizedRecordReader.java:41)
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