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[FLINK-30473][network] Optimize the InputGate network memory manageme…
…nt for TaskManager This closes #21620
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61 changes: 61 additions & 0 deletions
61
...src/main/java/org/apache/flink/runtime/io/network/partition/consumer/GateBuffersSpec.java
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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.flink.runtime.io.network.partition.consumer; | ||
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/** | ||
* The buffer specs of the {@link InputGate} include exclusive buffers per channel, required/total | ||
* floating buffers and the target of total buffers. | ||
*/ | ||
public class GateBuffersSpec { | ||
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private final int effectiveExclusiveBuffersPerChannel; | ||
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private final int requiredFloatingBuffers; | ||
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private final int totalFloatingBuffers; | ||
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private final int targetTotalBuffersPerGate; | ||
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GateBuffersSpec( | ||
int effectiveExclusiveBuffersPerChannel, | ||
int requiredFloatingBuffers, | ||
int totalFloatingBuffers, | ||
int targetTotalBuffersPerGate) { | ||
this.effectiveExclusiveBuffersPerChannel = effectiveExclusiveBuffersPerChannel; | ||
this.requiredFloatingBuffers = requiredFloatingBuffers; | ||
this.totalFloatingBuffers = totalFloatingBuffers; | ||
this.targetTotalBuffersPerGate = targetTotalBuffersPerGate; | ||
} | ||
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int getRequiredFloatingBuffers() { | ||
return requiredFloatingBuffers; | ||
} | ||
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int getTotalFloatingBuffers() { | ||
return totalFloatingBuffers; | ||
} | ||
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int getEffectiveExclusiveBuffersPerChannel() { | ||
return effectiveExclusiveBuffersPerChannel; | ||
} | ||
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public int targetTotalBuffersPerGate() { | ||
return targetTotalBuffersPerGate; | ||
} | ||
} |
125 changes: 125 additions & 0 deletions
125
.../main/java/org/apache/flink/runtime/io/network/partition/consumer/InputGateSpecUitls.java
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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.flink.runtime.io.network.partition.consumer; | ||
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import org.apache.flink.annotation.VisibleForTesting; | ||
import org.apache.flink.runtime.io.network.partition.ResultPartitionType; | ||
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import java.util.Optional; | ||
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import static org.apache.flink.util.Preconditions.checkArgument; | ||
import static org.apache.flink.util.Preconditions.checkState; | ||
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/** Utils to manage the specs of the {@link InputGate}, for example, {@link GateBuffersSpec}. */ | ||
public class InputGateSpecUitls { | ||
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public static final int DEFAULT_MAX_REQUIRED_BUFFERS_PER_GATE_FOR_BATCH = 1000; | ||
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public static final int DEFAULT_MAX_REQUIRED_BUFFERS_PER_GATE_FOR_STREAM = Integer.MAX_VALUE; | ||
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public static GateBuffersSpec createGateBuffersSpec( | ||
Optional<Integer> configuredMaxRequiredBuffersPerGate, | ||
int configuredNetworkBuffersPerChannel, | ||
int configuredFloatingNetworkBuffersPerGate, | ||
ResultPartitionType partitionType, | ||
int numInputChannels) { | ||
int maxRequiredBuffersThresholdPerGate = | ||
getEffectiveMaxRequiredBuffersPerGate( | ||
partitionType, configuredMaxRequiredBuffersPerGate); | ||
int targetRequiredBuffersPerGate = | ||
getRequiredBuffersTargetPerGate( | ||
numInputChannels, configuredNetworkBuffersPerChannel); | ||
int targetTotalBuffersPerGate = | ||
getTotalBuffersTargetPerGate( | ||
numInputChannels, | ||
configuredNetworkBuffersPerChannel, | ||
configuredFloatingNetworkBuffersPerGate); | ||
int requiredBuffersPerGate = | ||
Math.min(maxRequiredBuffersThresholdPerGate, targetRequiredBuffersPerGate); | ||
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int effectiveExclusiveBuffersPerChannel = | ||
getExclusiveBuffersPerChannel( | ||
configuredNetworkBuffersPerChannel, | ||
numInputChannels, | ||
requiredBuffersPerGate); | ||
int effectiveExclusiveBuffersPerGate = | ||
getEffectiveExclusiveBuffersPerGate( | ||
numInputChannels, effectiveExclusiveBuffersPerChannel); | ||
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int requiredFloatingBuffers = requiredBuffersPerGate - effectiveExclusiveBuffersPerGate; | ||
int totalFloatingBuffers = targetTotalBuffersPerGate - effectiveExclusiveBuffersPerGate; | ||
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checkState(requiredFloatingBuffers > 0, "Must be positive."); | ||
checkState( | ||
requiredFloatingBuffers <= totalFloatingBuffers, | ||
"Wrong number of floating buffers."); | ||
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return new GateBuffersSpec( | ||
effectiveExclusiveBuffersPerChannel, | ||
requiredFloatingBuffers, | ||
totalFloatingBuffers, | ||
targetTotalBuffersPerGate); | ||
} | ||
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@VisibleForTesting | ||
static int getEffectiveMaxRequiredBuffersPerGate( | ||
ResultPartitionType partitionType, | ||
Optional<Integer> configuredMaxRequiredBuffersPerGate) { | ||
return configuredMaxRequiredBuffersPerGate.orElseGet( | ||
() -> | ||
partitionType.isPipelinedOrPipelinedBoundedResultPartition() | ||
? DEFAULT_MAX_REQUIRED_BUFFERS_PER_GATE_FOR_STREAM | ||
: DEFAULT_MAX_REQUIRED_BUFFERS_PER_GATE_FOR_BATCH); | ||
} | ||
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/** | ||
* Since at least one floating buffer is required, the number of required buffers is reduced by | ||
* 1, and then the average number of buffers per channel is calculated. Returning the minimum | ||
* value to ensure that the number of required buffers per gate is not more than the given | ||
* requiredBuffersPerGate.}. | ||
*/ | ||
private static int getExclusiveBuffersPerChannel( | ||
int configuredNetworkBuffersPerChannel, | ||
int numInputChannels, | ||
int requiredBuffersPerGate) { | ||
checkArgument(numInputChannels > 0, "Must be positive."); | ||
checkArgument(requiredBuffersPerGate >= 1, "Require at least 1 buffer per gate."); | ||
return Math.min( | ||
configuredNetworkBuffersPerChannel, | ||
(requiredBuffersPerGate - 1) / numInputChannels); | ||
} | ||
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private static int getRequiredBuffersTargetPerGate( | ||
int numInputChannels, int configuredNetworkBuffersPerChannel) { | ||
return numInputChannels * configuredNetworkBuffersPerChannel + 1; | ||
} | ||
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private static int getTotalBuffersTargetPerGate( | ||
int numInputChannels, | ||
int configuredNetworkBuffersPerChannel, | ||
int configuredFloatingBuffersPerGate) { | ||
return numInputChannels * configuredNetworkBuffersPerChannel | ||
+ configuredFloatingBuffersPerGate; | ||
} | ||
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private static int getEffectiveExclusiveBuffersPerGate( | ||
int numInputChannels, int effectiveExclusiveBuffersPerChannel) { | ||
return effectiveExclusiveBuffersPerChannel * numInputChannels; | ||
} | ||
} |
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