BsoBird commented on code in PR #5934:
URL: https://github.com/apache/hive/pull/5934#discussion_r2191930484
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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:
@deniskuzZ
BTW, since we're talking about HadoopCatalog, I'd like to recommend myself
to show you a prototype project I previously used for research. It currently
implements a reliable commit mechanism based on any file system. As HMS is
trending towards being separated as a standalone metadata management tool, if
it could have a built-in catalog that doesn't rely on DB or other services, but
only a lightweight implementation dependent on the file system, I think many
people would be willing to try it.
https://github.com/BsoBird/filesystem-catalog-original
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