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[SPARK-52456][CORE] Lower the minimum limit of spark.eventLog.rolling.maxFileSize #51162

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[SPARK-52456][CORE] Lower the minimum limit of spark.eventLog.rolling.maxFileSize #51162

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[SPARK-52456][CORE] Lower the maximum size limit of event log files
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@dongjoon-hyun
dongjoon-hyun committed Jun 11, 2025
commit c356b1a28899279b68d64a3292f829d12a044140
4 changes: 2 additions & 2 deletions core/src/main/scala/org/apache/spark/internal/config/package.scala
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Expand Up @@ -317,8 +317,8 @@ package object config {
" to be rolled over.")
.version("3.0.0")
.bytesConf(ByteUnit.BYTE)
.checkValue(_ >= ByteUnit.MiB.toBytes(10), "Max file size of event log should be " +
"configured to be at least 10 MiB.")
.checkValue(_ >= ByteUnit.MiB.toBytes(2), "Max file size of event log should be " +
"configured to be at least 2 MiB.")
.createWithDefaultString("128m")

private[spark] val EXECUTOR_ID =
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2 changes: 1 addition & 1 deletion core/src/test/scala/org/apache/spark/deploy/history/EventLogFileWritersSuite.scala
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Expand Up @@ -326,7 +326,7 @@ class RollingEventLogFilesWriterSuite extends EventLogFileWritersSuite {

val conf = getLoggingConf(testDirPath, None)
conf.set(EVENT_LOG_ENABLE_ROLLING, true)
conf.set(EVENT_LOG_ROLLING_MAX_FILE_SIZE.key, "9m")
conf.set(EVENT_LOG_ROLLING_MAX_FILE_SIZE.key, "1m")

val e = intercept[IllegalArgumentException] {
createWriter(appId, attemptId, testDirPath.toUri, conf,
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