[
https://issues.apache.org/jira/browse/SPARK-15458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-15458:
------------------------------------
Assignee: Tathagata Das (was: Apache Spark)
> Disable schema inference for streaming datasets on file streams
> ---------------------------------------------------------------
>
> Key: SPARK-15458
> URL: https://issues.apache.org/jira/browse/SPARK-15458
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Tathagata Das
> Assignee: Tathagata Das
>
> If the user relies on the schema to be inferred in file streams can break
> easily for multiple reasons
> - accidentally running on a directory which has no data
> - schema changing underneath
> - on restart, the query will infer schema again, and may unexpectedly infer
> incorrect schema, as the file in the directory may be different at the time
> of the restart.
> To avoid these complicated scenarios, for Spark 2.0, we are going to disable
> schema inferencing by default with a config, so that user is forced to
> consider explicitly what is the schema it wants, rather than the system
> trying to infer it and run into weird corner cases.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
