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Posted to issues@spark.apache.org by "Wenchen Fan (JIRA)" <ji...@apache.org> on 2018/07/04 12:06:00 UTC
[jira] [Resolved] (SPARK-24727) The cache 100 in CodeGenerator is
too small for streaming
[ https://issues.apache.org/jira/browse/SPARK-24727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan resolved SPARK-24727.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.4.0
Issue resolved by pull request 21705
[https://github.com/apache/spark/pull/21705]
> The cache 100 in CodeGenerator is too small for streaming
> ---------------------------------------------------------
>
> Key: SPARK-24727
> URL: https://issues.apache.org/jira/browse/SPARK-24727
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.3.1
> Reporter: ant_nebula
> Assignee: Takeshi Yamamuro
> Priority: Major
> Fix For: 2.4.0
>
>
> {code:java}
> org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator
> private val cache = CacheBuilder.newBuilder().maximumSize(100).build{code}
> The cache 100 in CodeGenerator is too small for realtime streaming calculation, although is ok for offline calculation. Because realtime streaming calculation is mostly more complex in one driver, and performance sensitive.
> I suggest spark support configging for user with default 100, such as spark.codegen.cache=1000
>
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