| // Copyright 2023 The Bazel Authors. All rights reserved. |
| // |
| // Licensed 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. |
| package com.google.devtools.build.lib.skyframe; |
| |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.bugreport.BugReport; |
| import com.google.devtools.build.skyframe.GraphInconsistencyReceiver; |
| import com.google.devtools.build.skyframe.SkyFunctionName; |
| import com.google.devtools.build.skyframe.SkyKey; |
| import com.google.devtools.build.skyframe.proto.GraphInconsistency.Inconsistency; |
| import java.util.Collection; |
| import javax.annotation.Nullable; |
| |
| /** |
| * The {@link GraphInconsistencyReceiver} that tolerates inconsistencies resulted in dropping |
| * pre-execution nodes in Skymeld mode. |
| */ |
| public class SkymeldInconsistencyReceiver implements GraphInconsistencyReceiver { |
| private static final ImmutableMap<SkyFunctionName, SkyFunctionName> |
| SKYMELD_EXPECTED_MISSING_CHILDREN = |
| ImmutableMap.of( |
| SkyFunctions.ACTION_EXECUTION, SkyFunctions.GLOB, |
| SkyFunctions.GLOB, SkyFunctions.GLOB); |
| |
| private final boolean heuristicallyDropNodes; |
| |
| public SkymeldInconsistencyReceiver(boolean heuristicallyDropNodes) { |
| this.heuristicallyDropNodes = heuristicallyDropNodes; |
| } |
| |
| @Override |
| public void noteInconsistencyAndMaybeThrow( |
| SkyKey key, @Nullable Collection<SkyKey> otherKeys, Inconsistency inconsistency) { |
| if (heuristicallyDropNodes |
| && NodeDroppingInconsistencyReceiver.isExpectedInconsistency( |
| key, otherKeys, inconsistency)) { |
| // If `--heuristically_drop_nodes` is enabled, check whether the inconsistency is caused by |
| // dropped state node. If so, tolerate the inconsistency and return. |
| return; |
| } |
| |
| if (!NodeDroppingInconsistencyReceiver.isExpectedInconsistency( |
| key, otherKeys, inconsistency, SKYMELD_EXPECTED_MISSING_CHILDREN)) { |
| // Instead of crashing, simply send a bug report here so we can evaluate whether this is an |
| // actual bug or just something else to be added to the expected list. |
| BugReport.logUnexpected( |
| "Unexpected inconsistency: %s, %s, %s", key, otherKeys, inconsistency); |
| } |
| } |
| } |