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https://issues.apache.org/jira/browse/SPARK-23186?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-23186:
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Description: Since some JDBC Drivers have class initialization code to call
`DriverManager`, we need to initialize DriverManager first in order to avoid
potential deadlock situation like STORM-2527. (was: Since some JDBC Drivers
have class initialization code to call `DriverManager`, we need to synchronize
them to avoid potential deadlock situation like STORM-2527.)
> Initialize DriverManager first before loading Drivers
> -----------------------------------------------------
>
> Key: SPARK-23186
> URL: https://issues.apache.org/jira/browse/SPARK-23186
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.1
> Reporter: Dongjoon Hyun
> Priority: Major
>
> Since some JDBC Drivers have class initialization code to call
> `DriverManager`, we need to initialize DriverManager first in order to avoid
> potential deadlock situation like STORM-2527.
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