| /** |
| * 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.core; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.storm.container.cgroup.CgroupUtils; |
| import org.apache.storm.container.cgroup.Device; |
| import org.apache.storm.container.cgroup.SubSystemType; |
| |
| 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() { |
| return SubSystemType.blkio; |
| } |
| |
| public int getBlkioWeight() throws IOException { |
| return Integer.valueOf(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_WEIGHT)).get(0)).intValue(); |
| } |
| |
| /* weight: 100-1000 */ |
| public void setBlkioWeight(int weight) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, BLKIO_WEIGHT), String.valueOf(weight)); |
| } |
| |
| public void setBlkioWeightDevice(Device device, int weight) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, BLKIO_WEIGHT_DEVICE), makeContext(device, weight)); |
| } |
| |
| public Map<Device, Integer> getBlkioWeightDevice() throws IOException { |
| List<String> strings = CgroupUtils.readFileByLine(CgroupUtils.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(CgroupUtils.getDir(this.dir, BLKIO_THROTTLE_READ_BPS_DEVICE), makeContext(device, bps)); |
| } |
| |
| public Map<Device, Long> getReadBps() throws IOException { |
| return parseConfig(BLKIO_THROTTLE_READ_BPS_DEVICE); |
| } |
| |
| public void setWriteBps(Device device, long bps) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, BLKIO_THROTTLE_WRITE_BPS_DEVICE), makeContext(device, bps)); |
| } |
| |
| public Map<Device, Long> getWriteBps() throws IOException { |
| return parseConfig(BLKIO_THROTTLE_WRITE_BPS_DEVICE); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public void setReadIOps(Device device, long iops) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, BLKIO_THROTTLE_READ_IOPS_DEVICE), makeContext(device, iops)); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Long> getReadIOps() throws IOException { |
| return parseConfig(BLKIO_THROTTLE_READ_IOPS_DEVICE); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public void setWriteIOps(Device device, long iops) throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.getDir(this.dir, BLKIO_THROTTLE_WRITE_IOPS_DEVICE), makeContext(device, iops)); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Long> getWriteIOps() throws IOException { |
| return parseConfig(BLKIO_THROTTLE_WRITE_IOPS_DEVICE); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getThrottleIOServiced() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_THROTTLE_IO_SERVICED))); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getThrottleIOServiceByte() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_THROTTLE_IO_SERVICE_BYTES))); |
| } |
| |
| public Map<Device, Long> getBlkioTime() throws IOException { |
| return parseConfig(BLKIO_TIME); |
| } |
| |
| public Map<Device, Long> getBlkioSectors() throws IOException { |
| return parseConfig(BLKIO_SECTORS); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getIOServiced() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_IO_SERVICED))); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getIOServiceBytes() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_IO_SERVICE_BYTES))); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getIOServiceTime() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_IO_SERVICE_TIME))); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getIOWaitTime() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_IO_WAIT_TIME))); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getIOMerged() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_IO_MERGED))); |
| } |
| |
| @SuppressWarnings("checkstyle:AbbreviationAsWordInName") |
| public Map<Device, Map<RecordType, Long>> getIOQueued() throws IOException { |
| return this.analyseRecord(CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, BLKIO_IO_QUEUED))); |
| } |
| |
| public void resetStats() throws IOException { |
| CgroupUtils.writeFileByLine(CgroupUtils.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, Long> parseConfig(String config) throws IOException { |
| List<String> strings = CgroupUtils.readFileByLine(CgroupUtils.getDir(this.dir, config)); |
| Map<Device, Long> result = new HashMap<Device, Long>(); |
| for (String string : strings) { |
| String[] strArgs = string.split(" "); |
| Device device = new Device(strArgs[0]); |
| Long value = Long.valueOf(strArgs[1]); |
| result.put(device, value); |
| } |
| return result; |
| } |
| |
| 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) { |
| try { |
| return RecordType.valueOf(type.toLowerCase()); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| } |
| } |