diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt index fe2af4bfb5a..92c44e908b3 100644 --- a/hadoop-yarn-project/CHANGES.txt +++ b/hadoop-yarn-project/CHANGES.txt @@ -309,6 +309,9 @@ Release 2.7.0 - UNRELEASED YARN-3285. (Backport YARN-3168) Convert branch-2 .apt.vm files of YARN to markdown. (Masatake Iwasaki via jianhe) + YARN-3122. Metrics for container's actual CPU usage. + (Anubhav Dhoot via kasha) + OPTIMIZATIONS YARN-2990. FairScheduler's delay-scheduling always waits for node-local and diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/CpuTimeTracker.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/CpuTimeTracker.java new file mode 100644 index 00000000000..d36848e7bcb --- /dev/null +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/CpuTimeTracker.java @@ -0,0 +1,99 @@ +/** + * 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.hadoop.yarn.util; + +import org.apache.hadoop.classification.InterfaceAudience; +import org.apache.hadoop.classification.InterfaceStability; + +import java.math.BigInteger; + +@InterfaceAudience.Private +@InterfaceStability.Unstable +public class CpuTimeTracker { + public static final int UNAVAILABLE = -1; + final long MINIMUM_UPDATE_INTERVAL; + + // CPU used time since system is on (ms) + BigInteger cumulativeCpuTime = BigInteger.ZERO; + + // CPU used time read last time (ms) + BigInteger lastCumulativeCpuTime = BigInteger.ZERO; + + // Unix timestamp while reading the CPU time (ms) + long sampleTime; + long lastSampleTime; + float cpuUsage; + BigInteger jiffyLengthInMillis; + + public CpuTimeTracker(long jiffyLengthInMillis) { + this.jiffyLengthInMillis = BigInteger.valueOf(jiffyLengthInMillis); + this.cpuUsage = UNAVAILABLE; + this.sampleTime = UNAVAILABLE; + this.lastSampleTime = UNAVAILABLE; + MINIMUM_UPDATE_INTERVAL = 10 * jiffyLengthInMillis; + } + + /** + * Return percentage of cpu time spent over the time since last update. + * CPU time spent is based on elapsed jiffies multiplied by amount of + * time for 1 core. Thus, if you use 2 cores completely you would have spent + * twice the actual time between updates and this will return 200%. + * + * @return Return percentage of cpu usage since last update, {@link + * CpuTimeTracker#UNAVAILABLE} if there haven't been 2 updates more than + * {@link CpuTimeTracker#MINIMUM_UPDATE_INTERVAL} apart + */ + public float getCpuTrackerUsagePercent() { + if (lastSampleTime == UNAVAILABLE || + lastSampleTime > sampleTime) { + // lastSampleTime > sampleTime may happen when the system time is changed + lastSampleTime = sampleTime; + lastCumulativeCpuTime = cumulativeCpuTime; + return cpuUsage; + } + // When lastSampleTime is sufficiently old, update cpuUsage. + // Also take a sample of the current time and cumulative CPU time for the + // use of the next calculation. + if (sampleTime > lastSampleTime + MINIMUM_UPDATE_INTERVAL) { + cpuUsage = + ((cumulativeCpuTime.subtract(lastCumulativeCpuTime)).floatValue()) + * 100F / ((float) (sampleTime - lastSampleTime)); + lastSampleTime = sampleTime; + lastCumulativeCpuTime = cumulativeCpuTime; + } + return cpuUsage; + } + + public void updateElapsedJiffies(BigInteger elapedJiffies, long sampleTime) { + this.cumulativeCpuTime = elapedJiffies.multiply(jiffyLengthInMillis); + this.sampleTime = sampleTime; + } + + @Override + public String toString() { + StringBuilder sb = new StringBuilder(); + sb.append("SampleTime " + this.sampleTime); + sb.append(" CummulativeCpuTime " + this.cumulativeCpuTime); + sb.append(" LastSampleTime " + this.lastSampleTime); + sb.append(" LastCummulativeCpuTime " + this.lastCumulativeCpuTime); + sb.append(" CpuUsage " + this.cpuUsage); + sb.append(" JiffyLengthMillisec " + this.jiffyLengthInMillis); + return sb.toString(); + } +} \ No newline at end of file diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/LinuxResourceCalculatorPlugin.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/LinuxResourceCalculatorPlugin.java index 2347f4041cc..ab1511a7e75 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/LinuxResourceCalculatorPlugin.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/LinuxResourceCalculatorPlugin.java @@ -23,6 +23,7 @@ import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.InputStreamReader; import java.io.IOException; +import java.math.BigInteger; import java.nio.charset.Charset; import java.util.regex.Matcher; import java.util.regex.Pattern; @@ -41,8 +42,6 @@ public class LinuxResourceCalculatorPlugin extends ResourceCalculatorPlugin { private static final Log LOG = LogFactory.getLog(LinuxResourceCalculatorPlugin.class); - public static final int UNAVAILABLE = -1; - /** * proc's meminfo virtual file has keys-values in the format * "key:[ \t]*value[ \t]kB". @@ -74,6 +73,7 @@ public class LinuxResourceCalculatorPlugin extends ResourceCalculatorPlugin { private static final Pattern CPU_TIME_FORMAT = Pattern.compile("^cpu[ \t]*([0-9]*)" + "[ \t]*([0-9]*)[ \t]*([0-9]*)[ \t].*"); + private CpuTimeTracker cpuTimeTracker; private String procfsMemFile; private String procfsCpuFile; @@ -87,12 +87,6 @@ public class LinuxResourceCalculatorPlugin extends ResourceCalculatorPlugin { private long inactiveSize = 0; // inactive cache memory (kB) private int numProcessors = 0; // number of processors on the system private long cpuFrequency = 0L; // CPU frequency on the system (kHz) - private long cumulativeCpuTime = 0L; // CPU used time since system is on (ms) - private long lastCumulativeCpuTime = 0L; // CPU used time read last time (ms) - // Unix timestamp while reading the CPU time (ms) - private float cpuUsage = UNAVAILABLE; - private long sampleTime = UNAVAILABLE; - private long lastSampleTime = UNAVAILABLE; boolean readMemInfoFile = false; boolean readCpuInfoFile = false; @@ -106,10 +100,8 @@ public class LinuxResourceCalculatorPlugin extends ResourceCalculatorPlugin { } public LinuxResourceCalculatorPlugin() { - procfsMemFile = PROCFS_MEMFILE; - procfsCpuFile = PROCFS_CPUINFO; - procfsStatFile = PROCFS_STAT; - jiffyLengthInMillis = ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS; + this(PROCFS_MEMFILE, PROCFS_CPUINFO, PROCFS_STAT, + ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS); } /** @@ -128,6 +120,7 @@ public class LinuxResourceCalculatorPlugin extends ResourceCalculatorPlugin { this.procfsCpuFile = procfsCpuFile; this.procfsStatFile = procfsStatFile; this.jiffyLengthInMillis = jiffyLengthInMillis; + this.cpuTimeTracker = new CpuTimeTracker(jiffyLengthInMillis); } /** @@ -276,12 +269,13 @@ public class LinuxResourceCalculatorPlugin extends ResourceCalculatorPlugin { long uTime = Long.parseLong(mat.group(1)); long nTime = Long.parseLong(mat.group(2)); long sTime = Long.parseLong(mat.group(3)); - cumulativeCpuTime = uTime + nTime + sTime; // milliseconds + cpuTimeTracker.updateElapsedJiffies( + BigInteger.valueOf(uTime + nTime + sTime), + getCurrentTime()); break; } str = in.readLine(); } - cumulativeCpuTime *= jiffyLengthInMillis; } catch (IOException io) { LOG.warn("Error reading the stream " + io); } finally { @@ -345,32 +339,18 @@ public class LinuxResourceCalculatorPlugin extends ResourceCalculatorPlugin { @Override public long getCumulativeCpuTime() { readProcStatFile(); - return cumulativeCpuTime; + return cpuTimeTracker.cumulativeCpuTime.longValue(); } /** {@inheritDoc} */ @Override public float getCpuUsage() { readProcStatFile(); - sampleTime = getCurrentTime(); - if (lastSampleTime == UNAVAILABLE || - lastSampleTime > sampleTime) { - // lastSampleTime > sampleTime may happen when the system time is changed - lastSampleTime = sampleTime; - lastCumulativeCpuTime = cumulativeCpuTime; - return cpuUsage; + float overallCpuUsage = cpuTimeTracker.getCpuTrackerUsagePercent(); + if (overallCpuUsage != CpuTimeTracker.UNAVAILABLE) { + overallCpuUsage = overallCpuUsage / getNumProcessors(); } - // When lastSampleTime is sufficiently old, update cpuUsage. - // Also take a sample of the current time and cumulative CPU time for the - // use of the next calculation. - final long MINIMUM_UPDATE_INTERVAL = 10 * jiffyLengthInMillis; - if (sampleTime > lastSampleTime + MINIMUM_UPDATE_INTERVAL) { - cpuUsage = (float)(cumulativeCpuTime - lastCumulativeCpuTime) * 100F / - ((float)(sampleTime - lastSampleTime) * getNumProcessors()); - lastSampleTime = sampleTime; - lastCumulativeCpuTime = cumulativeCpuTime; - } - return cpuUsage; + return overallCpuUsage; } /** diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ProcfsBasedProcessTree.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ProcfsBasedProcessTree.java index 69aa96dafa7..134cec2fcf7 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ProcfsBasedProcessTree.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ProcfsBasedProcessTree.java @@ -66,6 +66,8 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree { public static final String PROCFS_CMDLINE_FILE = "cmdline"; public static final long PAGE_SIZE; public static final long JIFFY_LENGTH_IN_MILLIS; // in millisecond + private final CpuTimeTracker cpuTimeTracker; + private Clock clock; enum MemInfo { SIZE("Size"), RSS("Rss"), PSS("Pss"), SHARED_CLEAN("Shared_Clean"), @@ -144,7 +146,7 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree { new HashMap(); public ProcfsBasedProcessTree(String pid) { - this(pid, PROCFS); + this(pid, PROCFS, new SystemClock()); } @Override @@ -157,6 +159,10 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree { } } + public ProcfsBasedProcessTree(String pid, String procfsDir) { + this(pid, procfsDir, new SystemClock()); + } + /** * Build a new process tree rooted at the pid. * @@ -165,11 +171,14 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree { * * @param pid root of the process tree * @param procfsDir the root of a proc file system - only used for testing. + * @param clock clock for controlling time for testing */ - public ProcfsBasedProcessTree(String pid, String procfsDir) { + public ProcfsBasedProcessTree(String pid, String procfsDir, Clock clock) { super(pid); + this.clock = clock; this.pid = getValidPID(pid); this.procfsDir = procfsDir; + this.cpuTimeTracker = new CpuTimeTracker(JIFFY_LENGTH_IN_MILLIS); } /** @@ -447,6 +456,26 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree { return cpuTime; } + private BigInteger getTotalProcessJiffies() { + BigInteger totalStime = BigInteger.ZERO; + long totalUtime = 0; + for (ProcessInfo p : processTree.values()) { + if (p != null) { + totalUtime += p.getUtime(); + totalStime = totalStime.add(p.getStime()); + } + } + return totalStime.add(BigInteger.valueOf(totalUtime)); + } + + @Override + public float getCpuUsagePercent() { + BigInteger processTotalJiffies = getTotalProcessJiffies(); + cpuTimeTracker.updateElapsedJiffies(processTotalJiffies, + clock.getTime()); + return cpuTimeTracker.getCpuTrackerUsagePercent(); + } + private static String getValidPID(String pid) { if (pid == null) return deadPid; Matcher m = numberPattern.matcher(pid); @@ -962,4 +991,48 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree { return sb.toString(); } } + + /** + * Test the {@link ProcfsBasedProcessTree} + * + * @param args + */ + public static void main(String[] args) { + if (args.length != 1) { + System.out.println("Provide "); + return; + } + + int numprocessors = + ResourceCalculatorPlugin.getResourceCalculatorPlugin(null, null) + .getNumProcessors(); + System.out.println("Number of processors " + numprocessors); + + System.out.println("Creating ProcfsBasedProcessTree for process " + + args[0]); + ProcfsBasedProcessTree procfsBasedProcessTree = new + ProcfsBasedProcessTree(args[0]); + procfsBasedProcessTree.updateProcessTree(); + + System.out.println(procfsBasedProcessTree.getProcessTreeDump()); + System.out.println("Get cpu usage " + procfsBasedProcessTree + .getCpuUsagePercent()); + + try { + // Sleep so we can compute the CPU usage + Thread.sleep(500L); + } catch (InterruptedException e) { + // do nothing + } + + procfsBasedProcessTree.updateProcessTree(); + + System.out.println(procfsBasedProcessTree.getProcessTreeDump()); + System.out.println("Cpu usage " + procfsBasedProcessTree + .getCpuUsagePercent()); + System.out.println("Vmem usage in bytes " + procfsBasedProcessTree + .getCumulativeVmem()); + System.out.println("Rss mem usage in bytes " + procfsBasedProcessTree + .getCumulativeRssmem()); + } } diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ResourceCalculatorProcessTree.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ResourceCalculatorProcessTree.java index 85f6f1af7bf..8c22c9efe71 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ResourceCalculatorProcessTree.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ResourceCalculatorProcessTree.java @@ -108,13 +108,23 @@ public abstract class ResourceCalculatorProcessTree extends Configured { /** * Get the CPU time in millisecond used by all the processes in the - * process-tree since the process-tree created + * process-tree since the process-tree was created * * @return cumulative CPU time in millisecond since the process-tree created * return 0 if it cannot be calculated */ public abstract long getCumulativeCpuTime(); + /** + * Get the CPU usage by all the processes in the process-tree based on + * average between samples as a ratio of overall CPU cycles similar to top. + * Thus, if 2 out of 4 cores are used this should return 200.0. + * + * @return percentage CPU usage since the process-tree was created + * return {@link CpuTimeTracker#UNAVAILABLE} if it cannot be calculated + */ + public abstract float getCpuUsagePercent(); + /** Verify that the tree process id is same as its process group id. * @return true if the process id matches else return false. */ diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/WindowsBasedProcessTree.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/WindowsBasedProcessTree.java index 143d236f01a..5c3251faf4f 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/WindowsBasedProcessTree.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/WindowsBasedProcessTree.java @@ -34,7 +34,7 @@ public class WindowsBasedProcessTree extends ResourceCalculatorProcessTree { static final Log LOG = LogFactory .getLog(WindowsBasedProcessTree.class); - + static class ProcessInfo { String pid; // process pid long vmem; // virtual memory @@ -202,4 +202,9 @@ public class WindowsBasedProcessTree extends ResourceCalculatorProcessTree { return cpuTimeMs; } + @Override + public float getCpuUsagePercent() { + return CpuTimeTracker.UNAVAILABLE; + } + } diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestLinuxResourceCalculatorPlugin.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestLinuxResourceCalculatorPlugin.java index c9a33d0f290..ad09fdfbad4 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestLinuxResourceCalculatorPlugin.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestLinuxResourceCalculatorPlugin.java @@ -171,8 +171,8 @@ public class TestLinuxResourceCalculatorPlugin { updateStatFile(uTime, nTime, sTime); assertEquals(plugin.getCumulativeCpuTime(), FAKE_JIFFY_LENGTH * (uTime + nTime + sTime)); - assertEquals(plugin.getCpuUsage(), (float)(LinuxResourceCalculatorPlugin.UNAVAILABLE),0.0); - + assertEquals(plugin.getCpuUsage(), (float)(CpuTimeTracker.UNAVAILABLE),0.0); + // Advance the time and sample again to test the CPU usage calculation uTime += 100L; plugin.advanceTime(200L); diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java index 771925574cd..d62e21dc56b 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java @@ -236,8 +236,8 @@ public class TestProcfsBasedProcessTree { } protected ProcfsBasedProcessTree createProcessTree(String pid, - String procfsRootDir) { - return new ProcfsBasedProcessTree(pid, procfsRootDir); + String procfsRootDir, Clock clock) { + return new ProcfsBasedProcessTree(pid, procfsRootDir, clock); } protected void destroyProcessTree(String pid) throws IOException { @@ -388,6 +388,8 @@ public class TestProcfsBasedProcessTree { // test processes String[] pids = { "100", "200", "300", "400" }; + ControlledClock testClock = new ControlledClock(new SystemClock()); + testClock.setTime(0); // create the fake procfs root directory. File procfsRootDir = new File(TEST_ROOT_DIR, "proc"); @@ -422,7 +424,7 @@ public class TestProcfsBasedProcessTree { // crank up the process tree class. Configuration conf = new Configuration(); ProcfsBasedProcessTree processTree = - createProcessTree("100", procfsRootDir.getAbsolutePath()); + createProcessTree("100", procfsRootDir.getAbsolutePath(), testClock); processTree.setConf(conf); // build the process tree. processTree.updateProcessTree(); @@ -444,6 +446,12 @@ public class TestProcfsBasedProcessTree { ? 7200L * ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS : 0L; Assert.assertEquals("Cumulative cpu time does not match", cumuCpuTime, processTree.getCumulativeCpuTime()); + + // verify CPU usage + Assert.assertEquals("Percent CPU time should be set to -1 initially", + -1.0, processTree.getCpuUsagePercent(), + 0.01); + // Check by enabling smaps setSmapsInProceTree(processTree, true); // RSS=Min(shared_dirty,PSS)+PrivateClean+PrivateDirty (exclude r-xs, @@ -460,15 +468,31 @@ public class TestProcfsBasedProcessTree { "100", "200000", "200", "3000", "500" }); writeStatFiles(procfsRootDir, pids, procInfos, memInfo); + long elapsedTimeBetweenUpdatesMsec = 200000; + testClock.setTime(elapsedTimeBetweenUpdatesMsec); // build the process tree. processTree.updateProcessTree(); // verify cumulative cpu time again + long prevCumuCpuTime = cumuCpuTime; cumuCpuTime = ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS > 0 ? 9400L * ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS : 0L; Assert.assertEquals("Cumulative cpu time does not match", cumuCpuTime, processTree.getCumulativeCpuTime()); + + double expectedCpuUsagePercent = + (ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS > 0) ? + (cumuCpuTime - prevCumuCpuTime) * 100.0 / + elapsedTimeBetweenUpdatesMsec : 0; + // expectedCpuUsagePercent is given by (94000L - 72000) * 100/ + // 200000; + // which in this case is 11. Lets verify that first + Assert.assertEquals(11, expectedCpuUsagePercent, 0.001); + Assert.assertEquals("Percent CPU time is not correct expected " + + expectedCpuUsagePercent, expectedCpuUsagePercent, + processTree.getCpuUsagePercent(), + 0.01); } finally { FileUtil.fullyDelete(procfsRootDir); } @@ -535,7 +559,8 @@ public class TestProcfsBasedProcessTree { // crank up the process tree class. ProcfsBasedProcessTree processTree = - createProcessTree("100", procfsRootDir.getAbsolutePath()); + createProcessTree("100", procfsRootDir.getAbsolutePath(), + new SystemClock()); setSmapsInProceTree(processTree, smapEnabled); // verify cumulative memory @@ -672,7 +697,7 @@ public class TestProcfsBasedProcessTree { setupProcfsRootDir(procfsRootDir); // crank up the process tree class. - createProcessTree(pid, procfsRootDir.getAbsolutePath()); + createProcessTree(pid, procfsRootDir.getAbsolutePath(), new SystemClock()); // Let us not create stat file for pid 100. Assert.assertTrue(ProcfsBasedProcessTree.checkPidPgrpidForMatch(pid, @@ -741,7 +766,8 @@ public class TestProcfsBasedProcessTree { writeCmdLineFiles(procfsRootDir, pids, cmdLines); ProcfsBasedProcessTree processTree = - createProcessTree("100", procfsRootDir.getAbsolutePath()); + createProcessTree("100", procfsRootDir.getAbsolutePath(), + new SystemClock()); // build the process tree. processTree.updateProcessTree(); diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestResourceCalculatorProcessTree.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestResourceCalculatorProcessTree.java index 32ceb2378f6..eaf7e8eb5ad 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestResourceCalculatorProcessTree.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestResourceCalculatorProcessTree.java @@ -53,6 +53,11 @@ public class TestResourceCalculatorProcessTree { return 0; } + @Override + public float getCpuUsagePercent() { + return CpuTimeTracker.UNAVAILABLE; + } + public boolean checkPidPgrpidForMatch() { return false; } diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainerMetrics.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainerMetrics.java index 7850688a6d2..1375da8b97c 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainerMetrics.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainerMetrics.java @@ -42,14 +42,29 @@ import static org.apache.hadoop.metrics2.lib.Interns.info; @Metrics(context="container") public class ContainerMetrics implements MetricsSource { - public static final String PMEM_LIMIT_METRIC_NAME = "pMemLimit"; - public static final String VMEM_LIMIT_METRIC_NAME = "vMemLimit"; + public static final String PMEM_LIMIT_METRIC_NAME = "pMemLimitMBs"; + public static final String VMEM_LIMIT_METRIC_NAME = "vMemLimitMBs"; public static final String VCORE_LIMIT_METRIC_NAME = "vCoreLimit"; - public static final String PMEM_USAGE_METRIC_NAME = "pMemUsage"; + public static final String PMEM_USAGE_METRIC_NAME = "pMemUsageMBs"; + private static final String PHY_CPU_USAGE_METRIC_NAME = "pCpuUsagePercent"; + + // Use a multiplier of 1000 to avoid losing too much precision when + // converting to integers + private static final String VCORE_USAGE_METRIC_NAME = "milliVcoreUsage"; @Metric public MutableStat pMemMBsStat; + // This tracks overall CPU percentage of the machine in terms of percentage + // of 1 core similar to top + // Thus if you use 2 cores completely out of 4 available cores this value + // will be 200 + @Metric + public MutableStat cpuCoreUsagePercent; + + @Metric + public MutableStat milliVcoresUsed; + @Metric public MutableGaugeInt pMemLimitMbs; @@ -57,7 +72,7 @@ public class ContainerMetrics implements MetricsSource { public MutableGaugeInt vMemLimitMbs; @Metric - public MutableGaugeInt cpuVcores; + public MutableGaugeInt cpuVcoreLimit; static final MetricsInfo RECORD_INFO = info("ContainerResource", "Resource limit and usage by container"); @@ -95,11 +110,17 @@ public class ContainerMetrics implements MetricsSource { this.pMemMBsStat = registry.newStat( PMEM_USAGE_METRIC_NAME, "Physical memory stats", "Usage", "MBs", true); + this.cpuCoreUsagePercent = registry.newStat( + PHY_CPU_USAGE_METRIC_NAME, "Physical Cpu core percent usage stats", + "Usage", "Percents", true); + this.milliVcoresUsed = registry.newStat( + VCORE_USAGE_METRIC_NAME, "1000 times Vcore usage", "Usage", + "MilliVcores", true); this.pMemLimitMbs = registry.newGauge( PMEM_LIMIT_METRIC_NAME, "Physical memory limit in MBs", 0); this.vMemLimitMbs = registry.newGauge( VMEM_LIMIT_METRIC_NAME, "Virtual memory limit in MBs", 0); - this.cpuVcores = registry.newGauge( + this.cpuVcoreLimit = registry.newGauge( VCORE_LIMIT_METRIC_NAME, "CPU limit in number of vcores", 0); } @@ -170,6 +191,12 @@ public class ContainerMetrics implements MetricsSource { this.pMemMBsStat.add(memoryMBs); } + public void recordCpuUsage( + int totalPhysicalCpuPercent, int milliVcoresUsed) { + this.cpuCoreUsagePercent.add(totalPhysicalCpuPercent); + this.milliVcoresUsed.add(milliVcoresUsed); + } + public void recordProcessId(String processId) { registry.tag(PROCESSID_INFO, processId); } @@ -177,7 +204,7 @@ public class ContainerMetrics implements MetricsSource { public void recordResourceLimit(int vmemLimit, int pmemLimit, int cpuVcores) { this.vMemLimitMbs.set(vmemLimit); this.pMemLimitMbs.set(pmemLimit); - this.cpuVcores.set(cpuVcores); + this.cpuVcoreLimit.set(cpuVcores); } private synchronized void scheduleTimerTaskIfRequired() { diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitorImpl.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitorImpl.java index 2cecda6cf2d..b587e46925e 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitorImpl.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/ContainersMonitorImpl.java @@ -38,6 +38,7 @@ import org.apache.hadoop.yarn.event.Dispatcher; import org.apache.hadoop.yarn.server.nodemanager.ContainerExecutor; import org.apache.hadoop.yarn.server.nodemanager.Context; import org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerKillEvent; +import org.apache.hadoop.yarn.server.nodemanager.util.NodeManagerHardwareUtils; import org.apache.hadoop.yarn.util.ResourceCalculatorProcessTree; import org.apache.hadoop.yarn.util.ResourceCalculatorPlugin; @@ -75,6 +76,7 @@ public class ContainersMonitorImpl extends AbstractService implements private long maxVCoresAllottedForContainers; private static final long UNKNOWN_MEMORY_LIMIT = -1L; + private int nodeCpuPercentageForYARN; public ContainersMonitorImpl(ContainerExecutor exec, AsyncDispatcher dispatcher, Context context) { @@ -145,6 +147,9 @@ public class ContainersMonitorImpl extends AbstractService implements LOG.info("Physical memory check enabled: " + pmemCheckEnabled); LOG.info("Virtual memory check enabled: " + vmemCheckEnabled); + nodeCpuPercentageForYARN = + NodeManagerHardwareUtils.getNodeCpuPercentage(conf); + if (pmemCheckEnabled) { // Logging if actual pmem cannot be determined. long totalPhysicalMemoryOnNM = UNKNOWN_MEMORY_LIMIT; @@ -434,6 +439,16 @@ public class ContainersMonitorImpl extends AbstractService implements pTree.updateProcessTree(); // update process-tree long currentVmemUsage = pTree.getCumulativeVmem(); long currentPmemUsage = pTree.getCumulativeRssmem(); + // if machine has 6 cores and 3 are used, + // cpuUsagePercentPerCore should be 300% and + // cpuUsageTotalCoresPercentage should be 50% + float cpuUsagePercentPerCore = pTree.getCpuUsagePercent(); + float cpuUsageTotalCoresPercentage = cpuUsagePercentPerCore / + resourceCalculatorPlugin.getNumProcessors(); + + // Multiply by 1000 to avoid losing data when converting to int + int milliVcoresUsed = (int) (cpuUsageTotalCoresPercentage * 1000 + * maxVCoresAllottedForContainers /nodeCpuPercentageForYARN); // as processes begin with an age 1, we want to see if there // are processes more than 1 iteration old. long curMemUsageOfAgedProcesses = pTree.getCumulativeVmem(1); @@ -451,6 +466,9 @@ public class ContainersMonitorImpl extends AbstractService implements ContainerMetrics.forContainer( containerId, containerMetricsPeriodMs).recordMemoryUsage( (int) (currentPmemUsage >> 20)); + ContainerMetrics.forContainer( + containerId, containerMetricsPeriodMs).recordCpuUsage + ((int)cpuUsagePercentPerCore, milliVcoresUsed); } boolean isMemoryOverLimit = false; diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/NodeManagerHardwareUtils.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/NodeManagerHardwareUtils.java index 07cf698429c..431cf5d14cc 100644 --- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/NodeManagerHardwareUtils.java +++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/util/NodeManagerHardwareUtils.java @@ -59,6 +59,19 @@ public class NodeManagerHardwareUtils { public static float getContainersCores(ResourceCalculatorPlugin plugin, Configuration conf) { int numProcessors = plugin.getNumProcessors(); + int nodeCpuPercentage = getNodeCpuPercentage(conf); + + return (nodeCpuPercentage * numProcessors) / 100.0f; + } + + /** + * Gets the percentage of physical CPU that is configured for YARN containers + * This is percent > 0 and <= 100 based on + * YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT + * @param conf Configuration object + * @return percent > 0 and <= 100 + */ + public static int getNodeCpuPercentage(Configuration conf) { int nodeCpuPercentage = Math.min(conf.getInt( YarnConfiguration.NM_RESOURCE_PERCENTAGE_PHYSICAL_CPU_LIMIT, @@ -73,7 +86,6 @@ public class NodeManagerHardwareUtils { + ". Value cannot be less than or equal to 0."; throw new IllegalArgumentException(message); } - - return (nodeCpuPercentage * numProcessors) / 100.0f; + return nodeCpuPercentage; } }