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[SPARK-49872][CORE] Remove jackson JSON string length limitation #52049

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cloud-fan wants to merge 2 commits into from
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[SPARK-49872][CORE] Remove jackson JSON string length limitation #52049

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198b6c5
Remove jackson JSON string length limitation.
cloud-fan Aug 16, 2025
95482dc
Update JsonProtocol.scala
cloud-fan Aug 18, 2025
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5 changes: 5 additions & 0 deletions core/src/main/scala/org/apache/spark/util/JsonProtocol.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,11 @@ private[spark] class JsonProtocolOptions(conf: SparkConf) {
private[spark] object JsonProtocol extends JsonUtils {
// TODO: Remove this file and put JSON serialization into each individual class.

// SPARK-49872: Remove jackson JSON string length limitation.
mapper.getFactory.setStreamReadConstraints(
StreamReadConstraints.builder().maxStringLength(Int.MaxValue).build()
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@dongjoon-hyun dongjoon-hyun Aug 18, 2025

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Could you fix the compilation failure, @cloud-fan ?

[error] /home/runner/work/spark/spark/core/src/main/scala/org/apache/spark/util/JsonProtocol.scala:71:5: not found: value StreamReadConstraints
[error]     StreamReadConstraints.builder().maxStringLength(Int.MaxValue).build()
[error]     ^
[error] one error found

)

private[util]
val defaultOptions: JsonProtocolOptions = new JsonProtocolOptions(new SparkConf(false))

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