Karen Coppage created HIVE-25513:
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Summary: Delta metrics collection may cause NPE
Key: HIVE-25513
URL: https://issues.apache.org/jira/browse/HIVE-25513
Project: Hive
Issue Type: Bug
Reporter: Karen Coppage
Assignee: Karen Coppage
When collecting metrics about the number of deltas under specific
partitions/tables, information about which partitions/tables are being read is
stored in the Configuration object under key delta.files.metrics.metadata. This
information is retrieved in DeltaFilesMetricsReporter#mergeDeltaFilesStats when
collecting the actual information about the number of deltas. But if the
information was never stored for some reason, an NPE will be thrown from
DeltaFilesMetricsReporter#mergeDeltaFilesStats.
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