Github user jiangxb1987 commented on a diff in the pull request: https://github.com/apache/spark/pull/19942#discussion_r156267891 --- Diff: core/src/main/scala/org/apache/spark/SparkConf.scala --- @@ -564,6 +564,18 @@ class SparkConf(loadDefaults: Boolean) extends Cloneable with Logging with Seria val encryptionEnabled = get(NETWORK_ENCRYPTION_ENABLED) || get(SASL_ENCRYPTION_ENABLED) require(!encryptionEnabled || get(NETWORK_AUTH_ENABLED), s"${NETWORK_AUTH_ENABLED.key} must be enabled when enabling encryption.") + + val executorTimeoutThreshold = Utils.timeStringAsSeconds(get("spark.network.timeout", "120s")) + val executorHeartbeatInterval = Utils.timeStringAsSeconds( + get("spark.executor.heartbeatInterval", "10s")) + if (executorHeartbeatInterval > executorTimeoutThreshold) { --- End diff -- ```require(executorHeartbeatInterval > executorTimeoutThreshold, s"The value of 'spark.network.timeout' must be no less than the value of 'spark.executor.heartbeatInterval'.")```
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