Karen Coppage created HIVE-22593:
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Summary: Dynamically partitioned MM (insert-only ACID) table isn't
compacting automatically
Key: HIVE-22593
URL: https://issues.apache.org/jira/browse/HIVE-22593
Project: Hive
Issue Type: Bug
Reporter: Karen Coppage
Assignee: Karen Coppage
Dynamic partitions of MM tables aren't entered into the HMS table
TXN_COMPONENTS. On inserting into such tables we see this line in the HMS log:
{code:java}
Expected to move at least one record from txn_components to
completed_txn_components when committing txn!{code}
(This is not the case for non-partitioned MM tables.)
Since the partitions aren't entered into COMPLETED_TXN_COMPONENTS, they aren't
considered for automatic compaction.
Probably the culprit is
org.apache.hadoop.hive.ql.metadata.Hive#loadDynamicPartitions which has an
isAcid parameter that is always false regarding MM tables, and also because MM
tables' "write type" is AcidUtils.Operation.NOT_ACID and not INSERT.
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