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| 1 | +/** |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | + * or more contributor license agreements. See the NOTICE file |
| 4 | + * distributed with this work for additional information |
| 5 | + * regarding copyright ownership. The ASF licenses this file |
| 6 | + * to you under the Apache License, Version 2.0 (the |
| 7 | + * "License"); you may not use this file except in compliance |
| 8 | + * with the License. You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, software |
| 13 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | + * See the License for the specific language governing permissions and |
| 16 | + * limitations under the License. |
| 17 | + */ |
| 18 | + |
| 19 | +package org.apache.hadoop.fs.azurebfs; |
| 20 | + |
| 21 | +import java.util.ArrayList; |
| 22 | +import java.util.Arrays; |
| 23 | +import java.util.Map; |
| 24 | +import java.util.concurrent.ConcurrentHashMap; |
| 25 | +import java.util.concurrent.atomic.AtomicLong; |
| 26 | + |
| 27 | +import static org.apache.hadoop.fs.azurebfs.constants.FileSystemConfigurations.HUNDRED; |
| 28 | +import static org.apache.hadoop.fs.azurebfs.constants.FileSystemConfigurations.THOUSAND; |
| 29 | + |
| 30 | +public class AbfsBackoffMetrics { |
| 31 | + |
| 32 | + private AtomicLong numberOfRequestsSucceeded; |
| 33 | + |
| 34 | + private AtomicLong minBackoff; |
| 35 | + |
| 36 | + private AtomicLong maxBackoff; |
| 37 | + |
| 38 | + private AtomicLong totalRequests; |
| 39 | + |
| 40 | + private AtomicLong totalBackoff; |
| 41 | + |
| 42 | + private String retryCount; |
| 43 | + |
| 44 | + private AtomicLong numberOfIOPSThrottledRequests; |
| 45 | + |
| 46 | + private AtomicLong numberOfBandwidthThrottledRequests; |
| 47 | + |
| 48 | + private AtomicLong numberOfOtherThrottledRequests; |
| 49 | + |
| 50 | + private AtomicLong numberOfNetworkFailedRequests; |
| 51 | + |
| 52 | + private AtomicLong maxRetryCount; |
| 53 | + |
| 54 | + private AtomicLong totalNumberOfRequests; |
| 55 | + |
| 56 | + private AtomicLong numberOfRequestsSucceededWithoutRetrying; |
| 57 | + |
| 58 | + private AtomicLong numberOfRequestsFailed; |
| 59 | + |
| 60 | + private final Map<String, AbfsBackoffMetrics> metricsMap |
| 61 | + = new ConcurrentHashMap<>(); |
| 62 | + |
| 63 | + public AbfsBackoffMetrics() { |
| 64 | + initializeMap(); |
| 65 | + this.numberOfIOPSThrottledRequests = new AtomicLong(); |
| 66 | + this.numberOfBandwidthThrottledRequests = new AtomicLong(); |
| 67 | + this.numberOfOtherThrottledRequests = new AtomicLong(); |
| 68 | + this.totalNumberOfRequests = new AtomicLong(); |
| 69 | + this.maxRetryCount = new AtomicLong(); |
| 70 | + this.numberOfRequestsSucceededWithoutRetrying = new AtomicLong(); |
| 71 | + this.numberOfRequestsFailed = new AtomicLong(); |
| 72 | + this.numberOfNetworkFailedRequests = new AtomicLong(); |
| 73 | + } |
| 74 | + |
| 75 | + public AbfsBackoffMetrics(String retryCount) { |
| 76 | + this.retryCount = retryCount; |
| 77 | + this.numberOfRequestsSucceeded = new AtomicLong(); |
| 78 | + this.minBackoff = new AtomicLong(Long.MAX_VALUE); |
| 79 | + this.maxBackoff = new AtomicLong(); |
| 80 | + this.totalRequests = new AtomicLong(); |
| 81 | + this.totalBackoff = new AtomicLong(); |
| 82 | + } |
| 83 | + |
| 84 | + private void initializeMap() { |
| 85 | + ArrayList<String> retryCountList = new ArrayList<String>( |
| 86 | + Arrays.asList("1", "2", "3", "4", "5_15", "15_25", "25AndAbove")); |
| 87 | + for (String s : retryCountList) { |
| 88 | + metricsMap.put(s, new AbfsBackoffMetrics(s)); |
| 89 | + } |
| 90 | + } |
| 91 | + |
| 92 | + public long getNumberOfRequestsSucceeded() { |
| 93 | + return this.numberOfRequestsSucceeded.get(); |
| 94 | + } |
| 95 | + |
| 96 | + public void setNumberOfRequestsSucceeded(long numberOfRequestsSucceeded) { |
| 97 | + this.numberOfRequestsSucceeded.set(numberOfRequestsSucceeded); |
| 98 | + } |
| 99 | + |
| 100 | + public void incrementNumberOfRequestsSucceeded() { |
| 101 | + this.numberOfRequestsSucceeded.getAndIncrement(); |
| 102 | + } |
| 103 | + |
| 104 | + public long getMinBackoff() { |
| 105 | + return this.minBackoff.get(); |
| 106 | + } |
| 107 | + |
| 108 | + public void setMinBackoff(long minBackoff) { |
| 109 | + this.minBackoff.set(minBackoff); |
| 110 | + } |
| 111 | + |
| 112 | + public long getMaxBackoff() { |
| 113 | + return this.maxBackoff.get(); |
| 114 | + } |
| 115 | + |
| 116 | + public void setMaxBackoff(long maxBackoff) { |
| 117 | + this.maxBackoff.set(maxBackoff); |
| 118 | + } |
| 119 | + |
| 120 | + public long getTotalRequests() { |
| 121 | + return this.totalRequests.get(); |
| 122 | + } |
| 123 | + |
| 124 | + public void incrementTotalRequests() { |
| 125 | + this.totalRequests.incrementAndGet(); |
| 126 | + } |
| 127 | + |
| 128 | + public void setTotalRequests(long totalRequests) { |
| 129 | + this.totalRequests.set(totalRequests); |
| 130 | + } |
| 131 | + |
| 132 | + public long getTotalBackoff() { |
| 133 | + return this.totalBackoff.get(); |
| 134 | + } |
| 135 | + |
| 136 | + public void setTotalBackoff(long totalBackoff) { |
| 137 | + this.totalBackoff.set(totalBackoff); |
| 138 | + } |
| 139 | + |
| 140 | + public String getRetryCount() { |
| 141 | + return this.retryCount; |
| 142 | + } |
| 143 | + |
| 144 | + public long getNumberOfIOPSThrottledRequests() { |
| 145 | + return this.numberOfIOPSThrottledRequests.get(); |
| 146 | + } |
| 147 | + |
| 148 | + public void setNumberOfIOPSThrottledRequests(long numberOfIOPSThrottledRequests) { |
| 149 | + this.numberOfIOPSThrottledRequests.set(numberOfIOPSThrottledRequests); |
| 150 | + } |
| 151 | + |
| 152 | + public void incrementNumberOfIOPSThrottledRequests() { |
| 153 | + this.numberOfIOPSThrottledRequests.getAndIncrement(); |
| 154 | + } |
| 155 | + |
| 156 | + public long getNumberOfBandwidthThrottledRequests() { |
| 157 | + return this.numberOfBandwidthThrottledRequests.get(); |
| 158 | + } |
| 159 | + |
| 160 | + public void setNumberOfBandwidthThrottledRequests(long numberOfBandwidthThrottledRequests) { |
| 161 | + this.numberOfBandwidthThrottledRequests.set(numberOfBandwidthThrottledRequests); |
| 162 | + } |
| 163 | + |
| 164 | + public void incrementNumberOfBandwidthThrottledRequests() { |
| 165 | + this.numberOfBandwidthThrottledRequests.getAndIncrement(); |
| 166 | + } |
| 167 | + |
| 168 | + public long getNumberOfOtherThrottledRequests() { |
| 169 | + return this.numberOfOtherThrottledRequests.get(); |
| 170 | + } |
| 171 | + |
| 172 | + public void setNumberOfOtherThrottledRequests(long numberOfOtherThrottledRequests) { |
| 173 | + this.numberOfOtherThrottledRequests.set(numberOfOtherThrottledRequests); |
| 174 | + } |
| 175 | + |
| 176 | + public void incrementNumberOfOtherThrottledRequests() { |
| 177 | + this.numberOfOtherThrottledRequests.getAndIncrement(); |
| 178 | + } |
| 179 | + |
| 180 | + public long getMaxRetryCount() { |
| 181 | + return this.maxRetryCount.get(); |
| 182 | + } |
| 183 | + |
| 184 | + public void setMaxRetryCount(long maxRetryCount) { |
| 185 | + this.maxRetryCount.set(maxRetryCount); |
| 186 | + } |
| 187 | + |
| 188 | + public void incrementMaxRetryCount() { |
| 189 | + this.maxRetryCount.getAndIncrement(); |
| 190 | + } |
| 191 | + |
| 192 | + public long getTotalNumberOfRequests() { |
| 193 | + return this.totalNumberOfRequests.get(); |
| 194 | + } |
| 195 | + |
| 196 | + public void setTotalNumberOfRequests(long totalNumberOfRequests) { |
| 197 | + this.totalNumberOfRequests.set(totalNumberOfRequests); |
| 198 | + } |
| 199 | + |
| 200 | + public void incrementTotalNumberOfRequests() { |
| 201 | + this.totalNumberOfRequests.getAndIncrement(); |
| 202 | + } |
| 203 | + |
| 204 | + public Map<String, AbfsBackoffMetrics> getMetricsMap() { |
| 205 | + return metricsMap; |
| 206 | + } |
| 207 | + |
| 208 | + public long getNumberOfRequestsSucceededWithoutRetrying() { |
| 209 | + return this.numberOfRequestsSucceededWithoutRetrying.get(); |
| 210 | + } |
| 211 | + |
| 212 | + public void setNumberOfRequestsSucceededWithoutRetrying(long numberOfRequestsSucceededWithoutRetrying) { |
| 213 | + this.numberOfRequestsSucceededWithoutRetrying.set(numberOfRequestsSucceededWithoutRetrying); |
| 214 | + } |
| 215 | + |
| 216 | + public void incrementNumberOfRequestsSucceededWithoutRetrying() { |
| 217 | + this.numberOfRequestsSucceededWithoutRetrying.getAndIncrement(); |
| 218 | + } |
| 219 | + |
| 220 | + public long getNumberOfRequestsFailed() { |
| 221 | + return this.numberOfRequestsFailed.get(); |
| 222 | + } |
| 223 | + |
| 224 | + public void setNumberOfRequestsFailed(long numberOfRequestsFailed) { |
| 225 | + this.numberOfRequestsFailed.set(numberOfRequestsFailed); |
| 226 | + } |
| 227 | + |
| 228 | + public void incrementNumberOfRequestsFailed() { |
| 229 | + this.numberOfRequestsFailed.getAndIncrement(); |
| 230 | + } |
| 231 | + |
| 232 | + public long getNumberOfNetworkFailedRequests() { |
| 233 | + return this.numberOfNetworkFailedRequests.get(); |
| 234 | + } |
| 235 | + |
| 236 | + public void setNumberOfNetworkFailedRequests(long numberOfNetworkFailedRequests) { |
| 237 | + this.numberOfNetworkFailedRequests.set(numberOfNetworkFailedRequests); |
| 238 | + } |
| 239 | + |
| 240 | + public void incrementNumberOfNetworkFailedRequests() { |
| 241 | + this.numberOfNetworkFailedRequests.getAndIncrement(); |
| 242 | + } |
| 243 | + |
| 244 | + /* |
| 245 | + Acronyms :- |
| 246 | + 1.RCTSI :- Request count that succeeded in x retries |
| 247 | + 2.MMA :- Min Max Average (This refers to the backoff or sleep time between 2 requests) |
| 248 | + 3.s :- seconds |
| 249 | + 4.BWT :- Number of Bandwidth throttled requests |
| 250 | + 5.IT :- Number of IOPS throttled requests |
| 251 | + 6.OT :- Number of Other throttled requests |
| 252 | + 7.NFR :- Number of requests which failed due to network errors |
| 253 | + 8.%RT :- Percentage of requests that are throttled |
| 254 | + 9.TRNR :- Total number of requests which succeeded without retrying |
| 255 | + 10.TRF :- Total number of requests which failed |
| 256 | + 11.TR :- Total number of requests which were made |
| 257 | + 12.MRC :- Max retry count across all requests |
| 258 | + */ |
| 259 | + @Override |
| 260 | + public String toString() { |
| 261 | + StringBuilder metricString = new StringBuilder(); |
| 262 | + long totalRequestsThrottled = getNumberOfBandwidthThrottledRequests() |
| 263 | + + getNumberOfIOPSThrottledRequests() |
| 264 | + + getNumberOfOtherThrottledRequests(); |
| 265 | + double percentageOfRequestsThrottled = |
| 266 | + ((double) totalRequestsThrottled / getTotalNumberOfRequests()) * HUNDRED; |
| 267 | + for (Map.Entry<String, AbfsBackoffMetrics> entry : metricsMap.entrySet()) { |
| 268 | + metricString.append("$RCTSI$_").append(entry.getKey()) |
| 269 | + .append("R_").append("=") |
| 270 | + .append(entry.getValue().getNumberOfRequestsSucceeded()); |
| 271 | + long totalRequests = entry.getValue().getTotalRequests(); |
| 272 | + if (totalRequests > 0) { |
| 273 | + metricString.append("$MMA$_").append(entry.getKey()) |
| 274 | + .append("R_").append("=") |
| 275 | + .append(String.format("%.3f", |
| 276 | + (double) entry.getValue().getMinBackoff() / THOUSAND)) |
| 277 | + .append("s") |
| 278 | + .append(String.format("%.3f", |
| 279 | + (double) entry.getValue().getMaxBackoff() / THOUSAND)) |
| 280 | + .append("s") |
| 281 | + .append(String.format("%.3f", |
| 282 | + ((double) entry.getValue().getTotalBackoff() / totalRequests) |
| 283 | + / THOUSAND)) |
| 284 | + .append("s"); |
| 285 | + } else { |
| 286 | + metricString.append("$MMA$_").append(entry.getKey()) |
| 287 | + .append("R_").append("=0s"); |
| 288 | + } |
| 289 | + } |
| 290 | + metricString.append("$BWT=") |
| 291 | + .append(getNumberOfBandwidthThrottledRequests()) |
| 292 | + .append("$IT=") |
| 293 | + .append(getNumberOfIOPSThrottledRequests()) |
| 294 | + .append("$OT=") |
| 295 | + .append(getNumberOfOtherThrottledRequests()) |
| 296 | + .append("$RT=") |
| 297 | + .append(String.format("%.3f", percentageOfRequestsThrottled)) |
| 298 | + .append("$NFR=") |
| 299 | + .append(getNumberOfNetworkFailedRequests()) |
| 300 | + .append("$TRNR=") |
| 301 | + .append(getNumberOfRequestsSucceededWithoutRetrying()) |
| 302 | + .append("$TRF=") |
| 303 | + .append(getNumberOfRequestsFailed()) |
| 304 | + .append("$TR=") |
| 305 | + .append(getTotalNumberOfRequests()) |
| 306 | + .append("$MRC=") |
| 307 | + .append(getMaxRetryCount()); |
| 308 | + |
| 309 | + return metricString + ""; |
| 310 | + } |
| 311 | +} |
| 312 | + |
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