[
https://issues.apache.org/jira/browse/BEAM-2085?focusedWorklogId=589950&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-589950
]
ASF GitHub Bot logged work on BEAM-2085:
----------------------------------------
Author: ASF GitHub Bot
Created on: 27/Apr/21 18:45
Start Date: 27/Apr/21 18:45
Worklog Time Spent: 10m
Work Description: tvalentyn commented on a change in pull request #14607:
URL: https://github.com/apache/beam/pull/14607#discussion_r621500680
##########
File path:
sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/resourcehints/ResourceHints.java
##########
@@ -0,0 +1,291 @@
+/*
+ * 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.
+ */
+package org.apache.beam.sdk.transforms.resourcehints;
+
+import static
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkState;
+
+import java.util.List;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import org.apache.beam.model.pipeline.v1.RunnerApi;
+import org.apache.beam.model.pipeline.v1.RunnerApi.StandardResourceHints;
+import org.apache.beam.sdk.options.PipelineOptions;
+import
org.apache.beam.vendor.grpc.v1p26p0.com.google.protobuf.ProtocolMessageEnum;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Charsets;
+import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Splitter;
+import
org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableMap;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+/**
+ * Pipeline authors can use resource hints to provide additional information
to runners about the
+ * desired aspects of the execution environment. Resource hints can be
specified via {@link
+ * org.apache.beam.sdk.transforms.PTransform PTransform#setResourceHints} for
parts of the pipeline,
+ * or globally via {@link ResourceHintsOptions resourceHints} pipeline option.
+ *
+ * <p>Interpretation of hints is provided by Beam runners.
+ */
+public class ResourceHints {
+ private static final String MIN_RAM_URN = "beam:resources:min_ram_bytes:v1";
+ private static final String ACCELERATOR_URN =
"beam:resources:accelerator:v1";
+
+ // TODO: reference this from a common location in all packages that use this.
+ private static String getUrn(ProtocolMessageEnum value) {
+ return
value.getValueDescriptor().getOptions().getExtension(RunnerApi.beamUrn);
+ }
+
+ static {
+
checkState(MIN_RAM_URN.equals(getUrn(StandardResourceHints.Enum.MIN_RAM_BYTES)));
+
checkState(ACCELERATOR_URN.equals(getUrn(StandardResourceHints.Enum.ACCELERATOR)));
+ }
+
+ private static ImmutableMap<String, String> hintNameToUrn =
+ ImmutableMap.<String, String>builder()
+ .put("minRam", MIN_RAM_URN)
+ .put("min_ram", MIN_RAM_URN) // Courtesy alias.
+ .put("accelerator", ACCELERATOR_URN)
+ .build();
+
+ private static ImmutableMap<String, Function<String, ResourceHint>> parsers =
+ ImmutableMap.<String, Function<String, ResourceHint>>builder()
+ .put(MIN_RAM_URN, s -> new BytesHint(BytesHint.parse(s)))
+ .put(ACCELERATOR_URN, s -> new StringHint(s))
+ .build();
+
+ private static ResourceHints empty = new ResourceHints(ImmutableMap.of());
Review comment:
I think style guide says to use upper case for:
`All static final object reference types that are never followed by "."
(dot).`
so yes, chagning.
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Issue Time Tracking
-------------------
Worklog Id: (was: 589950)
Time Spent: 38h (was: 37h 50m)
> Transforms could give hints to runners on resource requirements
> ---------------------------------------------------------------
>
> Key: BEAM-2085
> URL: https://issues.apache.org/jira/browse/BEAM-2085
> Project: Beam
> Issue Type: Improvement
> Components: beam-model, runner-core, sdk-java-core
> Affects Versions: Not applicable
> Reporter: Ismaël Mejía
> Assignee: Valentyn Tymofieiev
> Priority: P3
> Labels: Clarified
> Time Spent: 38h
> Remaining Estimate: 0h
>
> As discussed in BEAM-673 runners can allocate workers to accomplish their
> work in a better way if they can take into account some hints from the
> transforms, e.g. a source can hint data locality and with this information
> the runner can allocate the workers in an better way, this can also be the
> case with a particular transform that can suggest to the runner to be
> executed in a worker with a specific resource, e.g. GPU.
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