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Posted to dev@phoenix.apache.org by "Mujtaba Chohan (JIRA)" <ji...@apache.org> on 2016/06/06 19:54:20 UTC
[jira] [Created] (PHOENIX-2968) Reduce alter statement RPC when
table/view is set with APPEND_ONLY_SCHEMA and high value for
UPDATE_CACHE_FREQUENCY
Mujtaba Chohan created PHOENIX-2968:
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Summary: Reduce alter statement RPC when table/view is set with APPEND_ONLY_SCHEMA and high value for UPDATE_CACHE_FREQUENCY
Key: PHOENIX-2968
URL: https://issues.apache.org/jira/browse/PHOENIX-2968
Project: Phoenix
Issue Type: Bug
Reporter: Mujtaba Chohan
Assignee: James Taylor
View is created with {{CREATE VIEW IF NOT EXISTS ... APPEND_ONLY_SCHEMA = true, UPDATE_CACHE_FREQUENCY=900000}}
If {{ALTER VIEW <VIEW_NAME> ADD IF NOT EXISTS MYCOL VARCHAR}} is executed before each upsert statement then performance for each 1K batch upsert degrades by ~40X (50ms for 1K batch without alter statement vs 2300ms with alter statement)
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