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Posted to issues@spark.apache.org by "Shenghu Yang (JIRA)" <ji...@apache.org> on 2015/08/04 08:27:04 UTC
[jira] [Created] (SPARK-9588) spark sql cache: partition level
cache eviction
Shenghu Yang created SPARK-9588:
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Summary: spark sql cache: partition level cache eviction
Key: SPARK-9588
URL: https://issues.apache.org/jira/browse/SPARK-9588
Project: Spark
Issue Type: Improvement
Reporter: Shenghu Yang
In spark 1.4, we can only do 'cache table <table_name>'. However, if we have table which will get a new partition periodically, say every 10 minutes, we have to do 'uncache' & then 'cache' the whole table, taking long time.
Things would be much faster if I can do:
(1) cache table <table_name> partition <newest_partition>
(2) uncache table <table_name> partition <oldest_partition>
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