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https://issues.apache.org/jira/browse/STORM-1336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15121665#comment-15121665
]
ASF GitHub Bot commented on STORM-1336:
---------------------------------------
Github user revans2 commented on a diff in the pull request:
https://github.com/apache/storm/pull/1053#discussion_r51134861
--- Diff:
storm-core/src/jvm/org/apache/storm/container/cgroup/CgroupCenter.java ---
@@ -0,0 +1,238 @@
+/**
+ * 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.storm.container.cgroup;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+public class CgroupCenter implements CgroupOperation {
+
+ public static Logger LOG = LoggerFactory.getLogger(CgroupCenter.class);
+
+ private static CgroupCenter instance;
+
+ private CgroupCenter() {
+
+ }
+
+ /**
+ * Thread unsafe
+ *
+ * @return
+ */
+ public synchronized static CgroupCenter getInstance() {
+ if (instance == null)
+ instance = new CgroupCenter();
+ return CgroupUtils.enabled() ? instance : null;
+ }
+
+ @Override
+ public List<Hierarchy> getHierarchies() {
+
+ Map<String, Hierarchy> hierarchies = new HashMap<String,
Hierarchy>();
+ FileReader reader = null;
+ BufferedReader br = null;
+ try {
+ reader = new FileReader(Constants.MOUNT_STATUS_FILE);
+ br = new BufferedReader(reader);
+ String str = null;
+ while ((str = br.readLine()) != null) {
+ String[] strSplit = str.split(" ");
+ if (!strSplit[2].equals("cgroup"))
+ continue;
+ String name = strSplit[0];
+ String type = strSplit[3];
+ String dir = strSplit[1];
+ Hierarchy h = hierarchies.get(type);
+ h = new Hierarchy(name, CgroupUtils.analyse(type), dir);
+ hierarchies.put(type, h);
+ }
+ return new ArrayList<Hierarchy>(hierarchies.values());
+ } catch (Exception e) {
+ LOG.error("Get hierarchies error", e);
+ } finally {
+ CgroupUtils.close(reader, br);
--- End diff --
This is also just about everywhere in the code.
> Evalute/Port JStorm cgroup support
> ----------------------------------
>
> Key: STORM-1336
> URL: https://issues.apache.org/jira/browse/STORM-1336
> Project: Apache Storm
> Issue Type: New Feature
> Components: storm-core
> Reporter: Robert Joseph Evans
> Assignee: Boyang Jerry Peng
> Labels: jstorm-merger
>
> Supports controlling the upper limit of CPU core usage for a worker using
> cgroups
> Sounds like a good start, will be nice to integrate it with RAS requests too.
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