/**
* 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 com.alibaba.jstorm.container.cgroup.core;
import java.io.IOException;
import com.alibaba.jstorm.container.CgroupUtils;
import com.alibaba.jstorm.container.Constants;
import com.alibaba.jstorm.container.SubSystemType;
public class MemoryCore implements CgroupCore {
public static final String MEMORY_STAT = "/memory.stat";
public static final String MEMORY_USAGE_IN_BYTES = "/memory.usage_in_bytes";
public static final String MEMORY_MEMSW_USAGE_IN_BYTES = "/memory.memsw.usage_in_bytes";
public static final String MEMORY_MAX_USAGE_IN_BYTES = "/memory.max_usage_in_bytes";
public static final String MEMORY_MEMSW_MAX_USAGE_IN_BYTES = "/memory.memsw.max_usage_in_bytes";
public static final String MEMORY_LIMIT_IN_BYTES = "/memory.limit_in_bytes";
public static final String MEMORY_MEMSW_LIMIT_IN_BYTES = "/memory.memsw.limit_in_bytes";
public static final String MEMORY_FAILCNT = "/memory.failcnt";
public static final String MEMORY_MEMSW_FAILCNT = "/memory.memsw.failcnt";
public static final String MEMORY_FORCE_EMPTY = "/memory.force_empty";
public static final String MEMORY_SWAPPINESS = "/memory.swappiness";
public static final String MEMORY_USE_HIERARCHY = "/memory.use_hierarchy";
public static final String MEMORY_OOM_CONTROL = "/memory.oom_control";
private final String dir;
public MemoryCore(String dir) {
this.dir = dir;
}
@Override
public SubSystemType getType() {
// TODO Auto-generated method stub
return SubSystemType.memory;
}
public static class Stat {
public final long cacheSize;
public final long rssSize;
public final long mappedFileSize;
public final long pgpginNum;
public final long pgpgoutNum;
public final long swapSize;
public final long activeAnonSize;
public final long inactiveAnonSize;
public final long activeFileSize;
public final long inactiveFileSize;
public final long unevictableSize;
public final long hierarchicalMemoryLimitSize;
public final long hierarchicalMemswLimitSize;
public final long totalCacheSize;
public final long totalRssSize;
public final long totalMappedFileSize;
public final long totalPgpginNum;
public final long totalPgpgoutNum;
public final long totalSwapSize;
public final long totalActiveAnonSize;
public final long totalInactiveAnonSize;
public final long totalActiveFileSize;
public final long totalInactiveFileSize;
public final long totalUnevictableSize;
public final long totalHierarchicalMemoryLimitSize;
public final long totalHierarchicalMemswLimitSize;
public Stat(String output) {
String[] splits = output.split("\n");
this.cacheSize = Long.parseLong(splits[0]);
this.rssSize = Long.parseLong(splits[1]);
this.mappedFileSize = Long.parseLong(splits[2]);
this.pgpginNum = Long.parseLong(splits[3]);
this.pgpgoutNum = Long.parseLong(splits[4]);
this.swapSize = Long.parseLong(splits[5]);
this.inactiveAnonSize = Long.parseLong(splits[6]);
this.activeAnonSize = Long.parseLong(splits[7]);
this.inactiveFileSize = Long.parseLong(splits[8]);
this.activeFileSize = Long.parseLong(splits[9]);
this.unevictableSize = Long.parseLong(splits[10]);
this.hierarchicalMemoryLimitSize = Long.parseLong(splits[11]);
this.hierarchicalMemswLimitSize = Long.parseLong(splits[12]);
this.totalCacheSize = Long.parseLong(splits[13]);
this.totalRssSize = Long.parseLong(splits[14]);
this.totalMappedFileSize = Long.parseLong(splits[15]);
this.totalPgpginNum = Long.parseLong(splits[16]);
this.totalPgpgoutNum = Long.parseLong(splits[17]);
this.totalSwapSize = Long.parseLong(splits[18]);
this.totalInactiveAnonSize = Long.parseLong(splits[19]);
this.totalActiveAnonSize = Long.parseLong(splits[20]);
this.totalInactiveFileSize = Long.parseLong(splits[21]);
this.totalActiveFileSize = Long.parseLong(splits[22]);
this.totalUnevictableSize = Long.parseLong(splits[23]);
this.totalHierarchicalMemoryLimitSize = Long.parseLong(splits[24]);
this.totalHierarchicalMemswLimitSize = Long.parseLong(splits[25]);
}
}
public Stat getStat() throws IOException {
String output = CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_STAT)).get(0);
Stat stat = new Stat(output);
return stat;
}
public long getPhysicalUsage() throws IOException {
return Long.parseLong(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_USAGE_IN_BYTES)).get(0));
}
public long getWithSwapUsage() throws IOException {
return Long.parseLong(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_MEMSW_USAGE_IN_BYTES)).get(0));
}
public long getMaxPhysicalUsage() throws IOException {
return Long.parseLong(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_MAX_USAGE_IN_BYTES)).get(0));
}
public long getMaxWithSwapUsage() throws IOException {
return Long.parseLong(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_MEMSW_MAX_USAGE_IN_BYTES)).get(0));
}
public void setPhysicalUsageLimit(long value) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, MEMORY_LIMIT_IN_BYTES), String.valueOf(value));
}
public long getPhysicalUsageLimit() throws IOException {
return Long.parseLong(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_LIMIT_IN_BYTES)).get(0));
}
public void setWithSwapUsageLimit(long value) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, MEMORY_MEMSW_LIMIT_IN_BYTES), String.valueOf(value));
}
public long getWithSwapUsageLimit() throws IOException {
return Long.parseLong(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_MEMSW_LIMIT_IN_BYTES)).get(0));
}
public int getPhysicalFailCount() throws IOException {
return Integer.parseInt(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_FAILCNT)).get(0));
}
public int getWithSwapFailCount() throws IOException {
return Integer.parseInt(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_MEMSW_FAILCNT)).get(0));
}
public void clearForceEmpty() throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, MEMORY_FORCE_EMPTY), String.valueOf(0));
}
public void setSwappiness(int value) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, MEMORY_SWAPPINESS), String.valueOf(value));
}
public int getSwappiness() throws IOException {
return Integer.parseInt(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_SWAPPINESS)).get(0));
}
public void setUseHierarchy(boolean flag) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, MEMORY_USE_HIERARCHY), String.valueOf(flag ? 1 : 0));
}
public boolean isUseHierarchy() throws IOException {
int output = Integer.parseInt(CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_USE_HIERARCHY)).get(0));
return output > 0;
}
public void setOomControl(boolean flag) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, MEMORY_OOM_CONTROL), String.valueOf(flag ? 1 : 0));
}
public boolean isOomControl() throws IOException {
String output = CgroupUtils.readFileByLine(Constants.getDir(this.dir, MEMORY_OOM_CONTROL)).get(0);
output = output.split("\n")[0].split("[\\s]")[1];
int value = Integer.parseInt(output);
return value > 0;
}
}