deniskuzZ commented on code in PR #5934:
URL: https://github.com/apache/hive/pull/5934#discussion_r2189172246
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ql/src/java/org/apache/hadoop/hive/ql/exec/tez/SplitGrouper.java:
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@@ -71,8 +70,8 @@ public class SplitGrouper {
// TODO This needs to be looked at. Map of Map to Map... Made concurrent for
now since split generation
// can happen in parallel.
- private static final Map<Map<Path, PartitionDesc>, Map<Path, PartitionDesc>>
cache =
- new ConcurrentHashMap<>();
+ private final Map<Map<Path, PartitionDesc>, Map<Path, PartitionDesc>> cache =
Review Comment:
please take a look at https://github.com/apache/hive/pull/5935/files, it has
some extra checkstyle fixes. If that looks OK, please apply here.
TBH, I have no idea why in a world someone came up with this
`Map<Map<>,Map<>>` data structure for a normalized path map.
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