Gopal V created HIVE-10191:
------------------------------
Summary: ORC: Cleanup writer per-row synchronization
Key: HIVE-10191
URL: https://issues.apache.org/jira/browse/HIVE-10191
Project: Hive
Issue Type: Bug
Components: File Formats
Affects Versions: 1.2.0
Reporter: Gopal V
Assignee: Gopal V
ORC writers were originally meant to be thread-safe, but in the present day
implementation each ORC writer is entirely share-nothing which converts most of
the synchronized blocks in ORC as entirely uncontested locks.
These uncontested locks prevent the JVM from inlining/optimizing these methods,
while adding no extra thread-safety to the ORC writers.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
