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https://issues.apache.org/jira/browse/SPARK-60354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruifeng Zheng resolved SPARK-60354.
-----------------------------------
Fix Version/s: 4.4.0
Resolution: Fixed
Issue resolved by pull request 59563
[https://github.com/apache/spark/pull/59563]
> FieldDescriptor.label is being deprecated
> -----------------------------------------
>
> Key: SPARK-60354
> URL: https://issues.apache.org/jira/browse/SPARK-60354
> Project: Spark
> Issue Type: Bug
> Components: Connect
> Affects Versions: 5.0.0, 4.4.0
> Reporter: Kaicheng Zhou
> Assignee: Kaicheng Zhou
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.4.0
>
>
> protobuf 7.34 removed {{FieldDescriptor.label}} (deprecated since 6.32 in
> favor of {{{}is_repeated{}}}). The latest {{grpcio-status}} and
> {{googleapis-common-protos}} allow {{{}protobuf<8{}}}, so a fresh PySpark
> Connect client install now gets protobuf 7.
> {{SparkConnectClient._truncate}} in
> {{python/pyspark/sql/connect/client/core.py}} checks {{{}descriptor.label ==
> descriptor.LABEL_REPEATED{}}}. On protobuf 7 it raises
> {{{}AttributeError{}}}, which {{_proto_to_string}} catches, so every
> "Executing plan" / "Schema for plan" / "Explain" debug log shows {{<Truncated
> message due to truncation error>}} instead of the plan. On protobuf 6.32–6.33
> the same code emits a {{{}DeprecationWarning{}}}.
>
> Fix: use {{{}descriptor.is_repeated{}}}, available since protobuf 6.31.0.
> PySpark already requires {{{}grpcio-status>=1.76.0{}}}, which needs
> {{{}protobuf>=6.31.1{}}}.
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