RenZhiMin created KYLIN-3341:
--------------------------------
Summary: SQL queries take up too much memory
Key: KYLIN-3341
URL: https://issues.apache.org/jira/browse/KYLIN-3341
Project: Kylin
Issue Type: Improvement
Components: Storage - HBase
Affects Versions: v2.0.0
Reporter: RenZhiMin
Some SQL will take up too much memory in the application, the service is not
stable, after analysis because the SQL query need to scan the relevant segemnt
corresponding hbase table, is through the thread asynchronous request related
to SQL cuboid corresponding region. After each segment makes a request, wait
for the data to process the hbase callbacks.
But sometimes SQL involves more segments, and before all the segments make
requests, there is a large amount of data returned, leading to memory alarm and
service instability.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
