[SPARK-33402][CORE] Jobs launched in same second have duplicate MapReduce JobIDs#30319

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steveloughran:BUG/SPARK-33402-jobuuid

Commits on Nov 10, 2020

[SPARK-33402][CORE] SparkHadoopWriter to set unique job ID in "spark.sql.sources.writeJobUUID"
steveloughran
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Commits on Nov 11, 2020

[SPARK-33402][CORE] Jobs launched in same second have duplicate JobIDs
steveloughran
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[SPARK-33402] use date as prefix, single random long adds 2^63 bits of
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