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https://issues.apache.org/jira/browse/STORM-1336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15134638#comment-15134638
]
ASF GitHub Bot commented on STORM-1336:
---------------------------------------
Github user knusbaum commented on a diff in the pull request:
https://github.com/apache/storm/pull/1053#discussion_r52053581
--- Diff:
storm-core/src/jvm/org/apache/storm/container/cgroup/CgroupUtils.java ---
@@ -0,0 +1,133 @@
+/**
+ * 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.BufferedWriter;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class CgroupUtils {
+
+ private static final Logger LOG =
LoggerFactory.getLogger(CgroupUtils.class);
+
+ public static void deleteDir(String dir) {
+ File d = new File(dir);
+ if (d.exists()) {
+ if (d.isDirectory()) {
+ if (!d.delete()) {
+ throw new RuntimeException("Cannot delete dir " + dir);
+ }
+ } else {
+ throw new RuntimeException("dir " + dir + " is not a
directory!");
+ }
+ } else {
+ LOG.warn("dir {} does not exist!", dir);
+ }
+ }
+
+ public static boolean fileExists(String dir) {
+ File file = new File(dir);
+ return file.exists();
+ }
+
+ public static boolean dirExists(String dir) {
--- End diff --
And this?
> 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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