/**
* 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 java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.alibaba.jstorm.container.CgroupUtils;
import com.alibaba.jstorm.container.Constants;
import com.alibaba.jstorm.container.SubSystemType;
import com.alibaba.jstorm.container.cgroup.Device;
public class BlkioCore implements CgroupCore {
public static final String BLKIO_WEIGHT = "/blkio.weight";
public static final String BLKIO_WEIGHT_DEVICE = "/blkio.weight_device";
public static final String BLKIO_RESET_STATS = "/blkio.reset_stats";
public static final String BLKIO_THROTTLE_READ_BPS_DEVICE = "/blkio.throttle.read_bps_device";
public static final String BLKIO_THROTTLE_WRITE_BPS_DEVICE = "/blkio.throttle.write_bps_device";
public static final String BLKIO_THROTTLE_READ_IOPS_DEVICE = "/blkio.throttle.read_iops_device";
public static final String BLKIO_THROTTLE_WRITE_IOPS_DEVICE = "/blkio.throttle.write_iops_device";
public static final String BLKIO_THROTTLE_IO_SERVICED = "/blkio.throttle.io_serviced";
public static final String BLKIO_THROTTLE_IO_SERVICE_BYTES = "/blkio.throttle.io_service_bytes";
public static final String BLKIO_TIME = "/blkio.time";
public static final String BLKIO_SECTORS = "/blkio.sectors";
public static final String BLKIO_IO_SERVICED = "/blkio.io_serviced";
public static final String BLKIO_IO_SERVICE_BYTES = "/blkio.io_service_bytes";
public static final String BLKIO_IO_SERVICE_TIME = "/blkio.io_service_time";
public static final String BLKIO_IO_WAIT_TIME = "/blkio.io_wait_time";
public static final String BLKIO_IO_MERGED = "/blkio.io_merged";
public static final String BLKIO_IO_QUEUED = "/blkio.io_queued";
private final String dir;
public BlkioCore(String dir) {
this.dir = dir;
}
@Override
public SubSystemType getType() {
// TODO Auto-generated method stub
return SubSystemType.blkio;
}
/* weight: 100-1000 */
public void setBlkioWeight(int weight) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, BLKIO_WEIGHT), String.valueOf(weight));
}
public int getBlkioWeight() throws IOException {
return Integer.valueOf(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_WEIGHT)).get(0)).intValue();
}
public void setBlkioWeightDevice(Device device, int weight) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, BLKIO_WEIGHT_DEVICE), makeContext(device, weight));
}
public Map<Device, Integer> getBlkioWeightDevice() throws IOException {
List<String> strings = CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_WEIGHT_DEVICE));
Map<Device, Integer> result = new HashMap<Device, Integer>();
for (String string : strings) {
String[] strArgs = string.split(" ");
Device device = new Device(strArgs[0]);
Integer weight = Integer.valueOf(strArgs[1]);
result.put(device, weight);
}
return result;
}
public void setReadBps(Device device, long bps) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_READ_BPS_DEVICE), makeContext(device, bps));
}
public Map<Device, Long> getReadBps() throws IOException {
List<String> strings = CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_READ_BPS_DEVICE));
Map<Device, Long> result = new HashMap<Device, Long>();
for (String string : strings) {
String[] strArgs = string.split(" ");
Device device = new Device(strArgs[0]);
Long bps = Long.valueOf(strArgs[1]);
result.put(device, bps);
}
return result;
}
public void setWriteBps(Device device, long bps) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_WRITE_BPS_DEVICE), makeContext(device, bps));
}
public Map<Device, Long> getWriteBps() throws IOException {
List<String> strings = CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_WRITE_BPS_DEVICE));
Map<Device, Long> result = new HashMap<Device, Long>();
for (String string : strings) {
String[] strArgs = string.split(" ");
Device device = new Device(strArgs[0]);
Long bps = Long.valueOf(strArgs[1]);
result.put(device, bps);
}
return result;
}
public void setReadIOps(Device device, long iops) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_READ_IOPS_DEVICE), makeContext(device, iops));
}
public Map<Device, Long> getReadIOps() throws IOException {
List<String> strings = CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_READ_IOPS_DEVICE));
Map<Device, Long> result = new HashMap<Device, Long>();
for (String string : strings) {
String[] strArgs = string.split(" ");
Device device = new Device(strArgs[0]);
Long iops = Long.valueOf(strArgs[1]);
result.put(device, iops);
}
return result;
}
public void setWriteIOps(Device device, long iops) throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_WRITE_IOPS_DEVICE), makeContext(device, iops));
}
public Map<Device, Long> getWriteIOps() throws IOException {
List<String> strings = CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_WRITE_IOPS_DEVICE));
Map<Device, Long> result = new HashMap<Device, Long>();
for (String string : strings) {
String[] strArgs = string.split(" ");
Device device = new Device(strArgs[0]);
Long iops = Long.valueOf(strArgs[1]);
result.put(device, iops);
}
return result;
}
public Map<Device, Map<RecordType, Long>> getThrottleIOServiced() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_IO_SERVICED)));
}
public Map<Device, Map<RecordType, Long>> getThrottleIOServiceByte() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_THROTTLE_IO_SERVICE_BYTES)));
}
public Map<Device, Long> getBlkioTime() throws IOException {
Map<Device, Long> result = new HashMap<Device, Long>();
List<String> strs = CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_TIME));
for (String str : strs) {
String[] strArgs = str.split(" ");
result.put(new Device(strArgs[0]), Long.parseLong(strArgs[1]));
}
return result;
}
public Map<Device, Long> getBlkioSectors() throws IOException {
Map<Device, Long> result = new HashMap<Device, Long>();
List<String> strs = CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_SECTORS));
for (String str : strs) {
String[] strArgs = str.split(" ");
result.put(new Device(strArgs[0]), Long.parseLong(strArgs[1]));
}
return result;
}
public Map<Device, Map<RecordType, Long>> getIOServiced() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_IO_SERVICED)));
}
public Map<Device, Map<RecordType, Long>> getIOServiceBytes() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_IO_SERVICE_BYTES)));
}
public Map<Device, Map<RecordType, Long>> getIOServiceTime() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_IO_SERVICE_TIME)));
}
public Map<Device, Map<RecordType, Long>> getIOWaitTime() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_IO_WAIT_TIME)));
}
public Map<Device, Map<RecordType, Long>> getIOMerged() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_IO_MERGED)));
}
public Map<Device, Map<RecordType, Long>> getIOQueued() throws IOException {
return this.analyseRecord(CgroupUtils.readFileByLine(Constants.getDir(this.dir, BLKIO_IO_QUEUED)));
}
public void resetStats() throws IOException {
CgroupUtils.writeFileByLine(Constants.getDir(this.dir, BLKIO_RESET_STATS), "1");
}
private String makeContext(Device device, Object data) {
StringBuilder sb = new StringBuilder();
sb.append(device.toString()).append(" ").append(data);
return sb.toString();
}
private Map<Device, Map<RecordType, Long>> analyseRecord(List<String> strs) {
Map<Device, Map<RecordType, Long>> result = new HashMap<Device, Map<RecordType, Long>>();
for (String str : strs) {
String[] strArgs = str.split(" ");
if (strArgs.length != 3)
continue;
Device device = new Device(strArgs[0]);
RecordType key = RecordType.getType(strArgs[1]);
Long value = Long.parseLong(strArgs[2]);
Map<RecordType, Long> record = result.get(device);
if (record == null) {
record = new HashMap<RecordType, Long>();
result.put(device, record);
}
record.put(key, value);
}
return result;
}
public enum RecordType {
read, write, sync, async, total;
public static RecordType getType(String type) {
if (type.equals("Read"))
return read;
else if (type.equals("Write"))
return write;
else if (type.equals("Sync"))
return sync;
else if (type.equals("Async"))
return async;
else if (type.equals("Total"))
return total;
else
return null;
}
}
}