Eugene Koifman created HIVE-21154:
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Summary: Investigate using object IDs in Acid HMS schema instead
of names
Key: HIVE-21154
URL: https://issues.apache.org/jira/browse/HIVE-21154
Project: Hive
Issue Type: New Feature
Components: Transactions
Affects Versions: 1.0.0
Reporter: Eugene Koifman
Currently all Acid related tables in HMS DB (HIVE_LOCKS, TXN_COMPONENTS, etc)
use db_name/table_name/partition_name to identify the metastore object that is
being tracked (these are potentially long strings, esp partition name. It
would improve perf to use object ID such as TBLS.TBL_ID which is exposed in
Thrift since HIVE-20556. It would also make handling object rename operations
no-op (currently handled in {{TxnHandler.onRename()}} from {{AcidEventListener
extends MetaStoreEventListener}}). This would require significant HMS schema
changes and surfacing the ID of Database/Partition objects.
Need to think how this affects replication.
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