f73157
@@ -21,7 +21,6 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -50,7 +49,6 @@
 import org.apache.hadoop.hive.ql.exec.Utilities;
 import org.apache.hadoop.hive.ql.exec.vector.VectorizedInputFormatInterface;
 import org.apache.hadoop.hive.ql.io.AcidInputFormat;
-import org.apache.hadoop.hive.ql.io.AcidInputFormat.DeltaMetaData;
 import org.apache.hadoop.hive.ql.io.AcidOutputFormat;
 import org.apache.hadoop.hive.ql.io.AcidUtils;
 import org.apache.hadoop.hive.ql.io.AcidUtils.Directory;
@@ -59,12 +57,10 @@
 import org.apache.hadoop.hive.ql.io.RecordIdentifier;
 import org.apache.hadoop.hive.ql.io.StatsProvidingRecordReader;
 import org.apache.hadoop.hive.ql.io.orc.OrcFile.WriterVersion;
-import org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.Context;
 import org.apache.hadoop.hive.ql.io.sarg.ConvertAstToSearchArg;
 import org.apache.hadoop.hive.ql.io.sarg.PredicateLeaf;
 import org.apache.hadoop.hive.ql.io.sarg.SearchArgument;
 import org.apache.hadoop.hive.ql.io.sarg.SearchArgument.TruthValue;
-import org.apache.hadoop.hive.ql.io.sarg.SearchArgumentFactory;
 import org.apache.hadoop.hive.serde2.ColumnProjectionUtils;
 import org.apache.hadoop.hive.serde2.SerDeStats;
 import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector;
@@ -1060,7 +1056,7 @@
private long computeProjectionSize(final Reader orcReader, final boolean[] inclu
     } catch (Exception e) {
       cancelFutures(pathFutures);
       cancelFutures(splitFutures);
-      throw new RuntimeException("serious problem", e);
+      throw new RuntimeException("ORC split generation failed with exception: " + e.getMessage(), e);
     }
 
     if (context.cacheStripeDetails) {
