spark Streaming 源码
spark Streaming 代码
文件路径：/core/src/main/scala/org/apache/spark/internal/config/Streaming.scala
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
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package org.apache.spark.internal.config
import java.util.concurrent.TimeUnit
private[spark] object Streaming {
private[spark] val STREAMING_DYN_ALLOCATION_ENABLED =
ConfigBuilder("spark.streaming.dynamicAllocation.enabled")
.version("3.0.0")
.booleanConf
.createWithDefault(false)
private[spark] val STREAMING_DYN_ALLOCATION_TESTING =
ConfigBuilder("spark.streaming.dynamicAllocation.testing")
.version("3.0.0")
.booleanConf
.createWithDefault(false)
private[spark] val STREAMING_DYN_ALLOCATION_MIN_EXECUTORS =
ConfigBuilder("spark.streaming.dynamicAllocation.minExecutors")
.version("3.0.0")
.intConf
.checkValue(_ > 0, "The min executor number of streaming dynamic " +
"allocation must be positive.")
.createOptional
private[spark] val STREAMING_DYN_ALLOCATION_MAX_EXECUTORS =
ConfigBuilder("spark.streaming.dynamicAllocation.maxExecutors")
.version("3.0.0")
.intConf
.checkValue(_ > 0, "The max executor number of streaming dynamic " +
"allocation must be positive.")
.createWithDefault(Int.MaxValue)
private[spark] val STREAMING_DYN_ALLOCATION_SCALING_INTERVAL =
ConfigBuilder("spark.streaming.dynamicAllocation.scalingInterval")
.version("3.0.0")
.timeConf(TimeUnit.SECONDS)
.checkValue(_ > 0, "The scaling interval of streaming dynamic " +
"allocation must be positive.")
.createWithDefault(60)
private[spark] val STREAMING_DYN_ALLOCATION_SCALING_UP_RATIO =
ConfigBuilder("spark.streaming.dynamicAllocation.scalingUpRatio")
.version("3.0.0")
.doubleConf
.checkValue(_ > 0, "The scaling up ratio of streaming dynamic " +
"allocation must be positive.")
.createWithDefault(0.9)
private[spark] val STREAMING_DYN_ALLOCATION_SCALING_DOWN_RATIO =
ConfigBuilder("spark.streaming.dynamicAllocation.scalingDownRatio")
.version("3.0.0")
.doubleConf
.checkValue(_ > 0, "The scaling down ratio of streaming dynamic " +
"allocation must be positive.")
.createWithDefault(0.3)
}
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