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https://issues.apache.org/jira/browse/SPARK-61036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon reassigned SPARK-61036:
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Assignee: Hyukjin Kwon
> Clone the session on the server in cloneSession in the Python client as
> PySpark does
> ------------------------------------------------------------------------------------
>
> Key: SPARK-61036
> URL: https://issues.apache.org/jira/browse/SPARK-61036
> Project: Spark
> Issue Type: Bug
> Components: Connect
> Affects Versions: connect-rust-4.3.0
> Reporter: Hyukjin Kwon
> Assignee: Hyukjin Kwon
> Priority: Major
> Labels: pull-request-available
> Fix For: connect-rust-4.3.0
>
>
> In PySpark Connect, {{spark.cloneSession(new_session_id=None)}} clones the
> session on the server with a {{CloneSession}} RPC. The new session has a copy
> of the server-side state of this one, its SQL configurations, temporary
> views, registered functions and catalog state, and the id {{new_session_id}}
> if one is given. Changes to either session after that do not show in the
> other.
> The Rust-backed Python client, and the Rust API
> {{SparkSession::clone_session}}, return a new session instead, with none of
> the state of this one, and ignore {{new_session_id}}. After
> {{spark.conf.set("spark.sql.shuffle.partitions", "7")}},
> {{spark.cloneSession().conf.get("spark.sql.shuffle.partitions")}} is {{200}},
> not {{7}}, and the temporary views of the session are not found. Clone the
> session as PySpark does.
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