Alexander Kolbasov created HIVE-18247:
-----------------------------------------
Summary: Use DB auto-increment for indexes
Key: HIVE-18247
URL: https://issues.apache.org/jira/browse/HIVE-18247
Project: Hive
Issue Type: Bug
Components: Hive, Metastore
Affects Versions: 3.0.0
Reporter: Alexander Kolbasov
I initially noticed this problem in Apache Sentry - see SENTRY-1960. Hive has
the same issue. DataNucleus uses SEQUENCE table to allocate IDs which requires
raw locks on multiple tables during transactions and this creates scalability
problems.
Instead DN should rely on DB auto-increment mechanisms which are much more
scalable.
See SENTRY-1960 for extra details.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
