hadoop RejectPlacementRule 源码
haddop RejectPlacementRule 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/RejectPlacementRule.java
/**
* 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.hadoop.yarn.server.resourcemanager.placement;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.ResourceScheduler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
/**
* Rejects all placements.
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class RejectPlacementRule extends FSPlacementRule {
private static final Logger LOG =
LoggerFactory.getLogger(RejectPlacementRule.class);
/**
* The Reject rule does not use any configuration. Override and ignore all
* configuration.
* @param initArg the config to be set
*/
@Override
public void setConfig(Object initArg) {
// This rule ignores all config, just log and return
LOG.debug("RejectPlacementRule instantiated");
}
@Override
public boolean initialize(ResourceScheduler scheduler) throws IOException {
super.initialize(scheduler);
if (getParentRule() != null) {
throw new IOException(
"Parent rule should not be configured for Reject rule.");
}
return true;
}
@Override
public ApplicationPlacementContext getPlacementForApp(
ApplicationSubmissionContext asc, String user) {
return null;
}
}
相关信息
相关文章
hadoop ApplicationPlacementContext 源码
hadoop CSMappingPlacementRule 源码
hadoop DefaultPlacementRule 源码
hadoop FairQueuePlacementUtils 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
7、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦