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Posted to reviews@yunikorn.apache.org by GitBox <gi...@apache.org> on 2021/04/21 04:14:38 UTC
[GitHub] [incubator-yunikorn-site] wilfred-s commented on a change in pull request #48: [YUNIKORN-566] Gang design document
wilfred-s commented on a change in pull request #48:
URL: https://github.com/apache/incubator-yunikorn-site/pull/48#discussion_r617187295
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File path: docs/design/gang_scheduling.md
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+---
+id: gang_scheduling
+title: Gang scheduling design
+---
+
+<!--
+ * 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.
+ -->
+# Gang Scheduling Implementation
+## Change log
+
+| Change Date | Editors | Description |
+| ----------- | --------------------- | ---------------------------------------------- |
+| 2020-11-25 | Wilfred Spiegelenburg | Initial document |
+| 2020-11-26 | Wilfred Spiegelenburg | Allocation release definition, order change |
+| 2020-11-27 | Wilfred Spiegelenburg | Sequence diagram |
+| 2020-12-12 | Wilfred Spiegelenburg | Application submit and cleanup |
+| 2020-12-15 | Wilfred Spiegelenburg | AllocationRelease message and cleanup sequence |
+| 2020-12-24 | Wilfred Spiegelenburg | Allocation changes for recovery |
+| 2021-02-15 | Wilfred Spiegelenburg | Placeholder allocation and ask cleanup |
+
+YUNIKORN-2 describes a new format for scheduling applications by taking into account the overall demand the application will have.
+It guarantees the specified resources for the application by reserving the resources.
+
+There are two parts to this implementation:
+* Kubernetes Shim
+* Core and scheduling
+
+This document describes the implementation on the core side.
+
+## Goals
+Define the following points:
+
+1. Define changes required for the shim to core communication (scheduler interface)
+2. Scheduler storage object changes
+3. Scheduler logic changes
+
+## Non Goals
+Excluding the following major points:
+1. Kubernetes shim side implementation
+2. Generalised preemption on the core side
+
+## Generic flow
+As described in the YUNIKORN-2 design documentation we have the following flow.
Review comment:
removed
##########
File path: docs/design/gang_scheduling.md
##########
@@ -0,0 +1,631 @@
+---
+id: gang_scheduling
+title: Gang scheduling design
+---
+
+<!--
+ * 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.
+ -->
+# Gang Scheduling Implementation
+## Change log
+
+| Change Date | Editors | Description |
+| ----------- | --------------------- | ---------------------------------------------- |
+| 2020-11-25 | Wilfred Spiegelenburg | Initial document |
+| 2020-11-26 | Wilfred Spiegelenburg | Allocation release definition, order change |
+| 2020-11-27 | Wilfred Spiegelenburg | Sequence diagram |
+| 2020-12-12 | Wilfred Spiegelenburg | Application submit and cleanup |
+| 2020-12-15 | Wilfred Spiegelenburg | AllocationRelease message and cleanup sequence |
+| 2020-12-24 | Wilfred Spiegelenburg | Allocation changes for recovery |
+| 2021-02-15 | Wilfred Spiegelenburg | Placeholder allocation and ask cleanup |
Review comment:
removed
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