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HADOOP-14296. Move logging APIs over to slf4j in hadoop-tools.

This commit is contained in:
Akira Ajisaka 2017-06-20 13:18:26 +09:00
parent 099cbb427a
commit 3369540653
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GPG Key ID: C1EDBB9CA400FD50
7 changed files with 88 additions and 102 deletions
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8
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/TestFileSystemOperationsWithThreads.java
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@ -27,18 +27,18 @@ import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.apache.commons.logging.impl.Log4JLogger;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.azure.NativeAzureFileSystem.FolderRenamePending;
import org.apache.hadoop.test.GenericTestUtils.LogCapturer;
import org.apache.log4j.Logger;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.mockito.Mockito;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Tests the Native Azure file system (WASB) using parallel threads for rename and delete operations.
@ -68,8 +68,8 @@ public class TestFileSystemOperationsWithThreads extends AbstractWasbTestBase {
fs.initialize(uri, conf);
// Capture logs
logs = LogCapturer.captureLogs(new Log4JLogger(Logger
.getRootLogger()));
logs = LogCapturer.captureLogs(
LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME));
}
/*

12
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/TestNativeAzureFileSystemClientLogging.java
View File

@ -24,12 +24,12 @@ import static org.junit.Assert.assertTrue;
import java.net.URI;
import java.util.StringTokenizer;
import org.apache.commons.logging.impl.Log4JLogger;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.test.GenericTestUtils.LogCapturer;
import org.apache.log4j.Logger;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Test to validate Azure storage client side logging. Tests works only when
@ -97,8 +97,8 @@ public class TestNativeAzureFileSystemClientLogging
@Test
public void testLoggingEnabled() throws Exception {
LogCapturer logs = LogCapturer.captureLogs(new Log4JLogger(Logger
.getRootLogger()));
LogCapturer logs = LogCapturer.captureLogs(
LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME));
// Update configuration based on the Test.
updateFileSystemConfiguration(true);
@ -111,8 +111,8 @@ public class TestNativeAzureFileSystemClientLogging
@Test
public void testLoggingDisabled() throws Exception {
LogCapturer logs = LogCapturer.captureLogs(new Log4JLogger(Logger
.getRootLogger()));
LogCapturer logs = LogCapturer.captureLogs(
LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME));
// Update configuration based on the Test.
updateFileSystemConfiguration(false);

48
hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/SLSRunner.java
View File

@ -22,7 +22,6 @@ import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
@ -85,7 +84,8 @@ import org.apache.hadoop.yarn.sls.synthetic.SynthTraceJobProducer;
import org.apache.hadoop.yarn.sls.utils.SLSUtils;
import org.apache.hadoop.yarn.util.UTCClock;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.apache.log4j.Logger;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Private
@Unstable
@ -120,7 +120,7 @@ public class SLSRunner extends Configured implements Tool {
new HashMap<String, Object>();
// logger
public final static Logger LOG = Logger.getLogger(SLSRunner.class);
public final static Logger LOG = LoggerFactory.getLogger(SLSRunner.class);
private final static int DEFAULT_MAPPER_PRIORITY = 20;
private final static int DEFAULT_REDUCER_PRIORITY = 10;
@ -322,14 +322,12 @@ public class SLSRunner extends Configured implements Tool {
if (numRunningNodes == numNMs) {
break;
}
LOG.info(MessageFormat.format(
"SLSRunner is waiting for all "
+ "nodes RUNNING. {0} of {1} NMs initialized.",
numRunningNodes, numNMs));
LOG.info("SLSRunner is waiting for all nodes RUNNING."
+ " {} of {} NMs initialized.", numRunningNodes, numNMs);
Thread.sleep(1000);
}
LOG.info(MessageFormat.format("SLSRunner takes {0} ms to launch all nodes.",
(System.currentTimeMillis() - startTimeMS)));
LOG.info("SLSRunner takes {} ms to launch all nodes.",
System.currentTimeMillis() - startTimeMS);
}
@SuppressWarnings("unchecked")
@ -375,7 +373,7 @@ public class SLSRunner extends Configured implements Tool {
try {
createAMForJob(jobIter.next());
} catch (Exception e) {
LOG.error("Failed to create an AM: " + e.getMessage());
LOG.error("Failed to create an AM: {}", e.getMessage());
}
}
}
@ -497,7 +495,7 @@ public class SLSRunner extends Configured implements Tool {
try {
createAMForJob(job, baselineTimeMS);
} catch (Exception e) {
LOG.error("Failed to create an AM: " + e.getMessage());
LOG.error("Failed to create an AM: {}", e.getMessage());
}
job = reader.getNext();
@ -519,7 +517,7 @@ public class SLSRunner extends Configured implements Tool {
jobStartTimeMS -= baselineTimeMs;
jobFinishTimeMS -= baselineTimeMs;
if (jobStartTimeMS < 0) {
LOG.warn("Warning: reset job " + oldJobId + " start time to 0.");
LOG.warn("Warning: reset job {} start time to 0.", oldJobId);
jobFinishTimeMS = jobFinishTimeMS - jobStartTimeMS;
jobStartTimeMS = 0;
}
@ -610,7 +608,7 @@ public class SLSRunner extends Configured implements Tool {
jobStartTimeMS -= baselineTimeMS;
jobFinishTimeMS -= baselineTimeMS;
if (jobStartTimeMS < 0) {
LOG.warn("Warning: reset job " + oldJobId + " start time to 0.");
LOG.warn("Warning: reset job {} start time to 0.", oldJobId);
jobFinishTimeMS = jobFinishTimeMS - jobStartTimeMS;
jobStartTimeMS = 0;
}
@ -726,16 +724,14 @@ public class SLSRunner extends Configured implements Tool {
if (printSimulation) {
// node
LOG.info("------------------------------------");
LOG.info(MessageFormat.format(
"# nodes = {0}, # racks = {1}, capacity "
+ "of each node {2} MB memory and {3} vcores.",
numNMs, numRacks, nmMemoryMB, nmVCores));
LOG.info("# nodes = {}, # racks = {}, capacity " +
"of each node {} MB memory and {} vcores.",
numNMs, numRacks, nmMemoryMB, nmVCores);
LOG.info("------------------------------------");
// job
LOG.info(MessageFormat.format(
"# applications = {0}, # total "
+ "tasks = {1}, average # tasks per application = {2}",
numAMs, numTasks, (int) (Math.ceil((numTasks + 0.0) / numAMs))));
LOG.info("# applications = {}, # total " +
"tasks = {}, average # tasks per application = {}",
numAMs, numTasks, (int)(Math.ceil((numTasks + 0.0) / numAMs)));
LOG.info("JobId\tQueue\tAMType\tDuration\t#Tasks");
for (Map.Entry<String, AMSimulator> entry : amMap.entrySet()) {
AMSimulator am = entry.getValue();
@ -744,15 +740,13 @@ public class SLSRunner extends Configured implements Tool {
}
LOG.info("------------------------------------");
// queue
LOG.info(MessageFormat.format(
"number of queues = {0} average " + "number of apps = {1}",
LOG.info("number of queues = {} average number of apps = {}",
queueAppNumMap.size(),
(int) (Math.ceil((numAMs + 0.0) / queueAppNumMap.size()))));
(int)(Math.ceil((numAMs + 0.0) / queueAppNumMap.size())));
LOG.info("------------------------------------");
// runtime
LOG.info(
MessageFormat.format("estimated simulation time is {0}" + " seconds",
(long) (Math.ceil(maxRuntime / 1000.0))));
LOG.info("estimated simulation time is {} seconds",
(long)(Math.ceil(maxRuntime / 1000.0)));
LOG.info("------------------------------------");
}
// package these information in the simulateInfoMap used by other places

16
hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/appmaster/AMSimulator.java
View File

@ -22,7 +22,6 @@ import java.io.IOException;
import java.lang.reflect.UndeclaredThrowableException;
import java.nio.ByteBuffer;
import java.security.PrivilegedExceptionAction;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
@ -68,13 +67,13 @@ import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.sls.scheduler.SchedulerMetrics;
import org.apache.hadoop.yarn.util.Records;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.apache.log4j.Logger;
import org.apache.hadoop.yarn.sls.scheduler.ContainerSimulator;
import org.apache.hadoop.yarn.sls.scheduler.SchedulerWrapper;
import org.apache.hadoop.yarn.sls.SLSRunner;
import org.apache.hadoop.yarn.sls.scheduler.TaskRunner;
import org.apache.hadoop.yarn.sls.utils.SLSUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Private
@Unstable
@ -115,7 +114,7 @@ public abstract class AMSimulator extends TaskRunner.Task {
volatile boolean isAMContainerRunning = false;
volatile Container amContainer;
protected final Logger LOG = Logger.getLogger(AMSimulator.class);
private static final Logger LOG = LoggerFactory.getLogger(AMSimulator.class);
// resource for AM container
private final static int MR_AM_CONTAINER_RESOURCE_MEMORY_MB = 1024;
@ -216,7 +215,7 @@ public abstract class AMSimulator extends TaskRunner.Task {
@Override
public void lastStep() throws Exception {
LOG.info(MessageFormat.format("Application {0} is shutting down.", appId));
LOG.info("Application {} is shutting down.", appId);
// unregister tracking
if (isTracked) {
untrackApp();
@ -224,7 +223,7 @@ public abstract class AMSimulator extends TaskRunner.Task {
// Finish AM container
if (amContainer != null) {
LOG.info("AM container = " + amContainer.getId() + " reported to finish");
LOG.info("AM container = {} reported to finish", amContainer.getId());
se.getNmMap().get(amContainer.getNodeId()).cleanupContainer(
amContainer.getId());
} else {
@ -343,7 +342,7 @@ public abstract class AMSimulator extends TaskRunner.Task {
return null;
}
});
LOG.info(MessageFormat.format("Submit a new application {0}", appId));
LOG.info("Submit a new application {}", appId);
}
private void registerAM()
@ -370,8 +369,7 @@ public abstract class AMSimulator extends TaskRunner.Task {
}
});
LOG.info(MessageFormat.format(
"Register the application master for application {0}", appId));
LOG.info("Register the application master for application {}", appId);
}
private void trackApp() {

68
hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/appmaster/MRAMSimulator.java
View File

@ -20,7 +20,6 @@ package org.apache.hadoop.yarn.sls.appmaster;
import java.io.IOException;
import java.security.PrivilegedExceptionAction;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedList;
@ -42,10 +41,10 @@ import org.apache.hadoop.yarn.api.records.ResourceRequest;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.security.AMRMTokenIdentifier;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.sls.scheduler.ContainerSimulator;
import org.apache.hadoop.yarn.sls.SLSRunner;
import org.apache.log4j.Logger;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Private
@Unstable
@ -111,7 +110,8 @@ public class MRAMSimulator extends AMSimulator {
// finished
private boolean isFinished = false;
public final Logger LOG = Logger.getLogger(MRAMSimulator.class);
private static final Logger LOG =
LoggerFactory.getLogger(MRAMSimulator.class);
@SuppressWarnings("checkstyle:parameternumber")
public void init(int id, int heartbeatInterval,
@ -135,9 +135,8 @@ public class MRAMSimulator extends AMSimulator {
}
}
LOG.info(MessageFormat
.format("Added new job with {0} mapper and {1} reducers",
allMaps.size(), allReduces.size()));
LOG.info("Added new job with {} mapper and {} reducers",
allMaps.size(), allReduces.size());
mapTotal = allMaps.size();
reduceTotal = allReduces.size();
@ -165,22 +164,21 @@ public class MRAMSimulator extends AMSimulator {
ContainerId containerId = cs.getContainerId();
if (cs.getExitStatus() == ContainerExitStatus.SUCCESS) {
if (assignedMaps.containsKey(containerId)) {
LOG.debug(MessageFormat.format("Application {0} has one" +
"mapper finished ({1}).", appId, containerId));
LOG.debug("Application {} has one mapper finished ({}).",
appId, containerId);
assignedMaps.remove(containerId);
mapFinished ++;
finishedContainers ++;
} else if (assignedReduces.containsKey(containerId)) {
LOG.debug(MessageFormat.format("Application {0} has one" +
"reducer finished ({1}).", appId, containerId));
LOG.debug("Application {} has one reducer finished ({}).",
appId, containerId);
assignedReduces.remove(containerId);
reduceFinished ++;
finishedContainers ++;
} else if (amContainer.getId().equals(containerId)){
// am container released event
isFinished = true;
LOG.info(MessageFormat.format("Application {0} goes to " +
"finish.", appId));
LOG.info("Application {} goes to finish.", appId);
}
if (mapFinished >= mapTotal && reduceFinished >= reduceTotal) {
@ -189,16 +187,16 @@ public class MRAMSimulator extends AMSimulator {
} else {
// container to be killed
if (assignedMaps.containsKey(containerId)) {
LOG.debug(MessageFormat.format("Application {0} has one " +
"mapper killed ({1}).", appId, containerId));
LOG.debug("Application {} has one mapper killed ({}).",
appId, containerId);
pendingFailedMaps.add(assignedMaps.remove(containerId));
} else if (assignedReduces.containsKey(containerId)) {
LOG.debug(MessageFormat.format("Application {0} has one " +
"reducer killed ({1}).", appId, containerId));
LOG.debug("Application {} has one reducer killed ({}).",
appId, containerId);
pendingFailedReduces.add(assignedReduces.remove(containerId));
} else if (amContainer.getId().equals(containerId)){
LOG.info(MessageFormat.format("Application {0}'s AM is " +
"going to be killed. Waiting for rescheduling...", appId));
LOG.info("Application {}'s AM is " +
"going to be killed. Waiting for rescheduling...", appId);
}
}
}
@ -209,8 +207,8 @@ public class MRAMSimulator extends AMSimulator {
(mapFinished >= mapTotal) &&
(reduceFinished >= reduceTotal)) {
isAMContainerRunning = false;
LOG.debug(MessageFormat.format("Application {0} sends out event " +
"to clean up its AM container.", appId));
LOG.debug("Application {} sends out event to clean up"
+ " its AM container.", appId);
isFinished = true;
break;
}
@ -219,15 +217,15 @@ public class MRAMSimulator extends AMSimulator {
for (Container container : response.getAllocatedContainers()) {
if (! scheduledMaps.isEmpty()) {
ContainerSimulator cs = scheduledMaps.remove();
LOG.debug(MessageFormat.format("Application {0} starts a " +
"launch a mapper ({1}).", appId, container.getId()));
LOG.debug("Application {} starts to launch a mapper ({}).",
appId, container.getId());
assignedMaps.put(container.getId(), cs);
se.getNmMap().get(container.getNodeId())
.addNewContainer(container, cs.getLifeTime());
} else if (! this.scheduledReduces.isEmpty()) {
ContainerSimulator cs = scheduledReduces.remove();
LOG.debug(MessageFormat.format("Application {0} starts a " +
"launch a reducer ({1}).", appId, container.getId()));
LOG.debug("Application {} starts to launch a reducer ({}).",
appId, container.getId());
assignedReduces.put(container.getId(), cs);
se.getNmMap().get(container.getNodeId())
.addNewContainer(container, cs.getLifeTime());
@ -289,17 +287,15 @@ public class MRAMSimulator extends AMSimulator {
if (!pendingMaps.isEmpty()) {
ask = packageRequests(mergeLists(pendingMaps, scheduledMaps),
PRIORITY_MAP);
LOG.debug(MessageFormat
.format("Application {0} sends out " + "request for {1} mappers.",
appId, pendingMaps.size()));
LOG.debug("Application {} sends out request for {} mappers.",
appId, pendingMaps.size());
scheduledMaps.addAll(pendingMaps);
pendingMaps.clear();
} else if (!pendingFailedMaps.isEmpty()) {
ask = packageRequests(mergeLists(pendingFailedMaps, scheduledMaps),
PRIORITY_MAP);
LOG.debug(MessageFormat.format(
"Application {0} sends out " + "requests for {1} failed mappers.",
appId, pendingFailedMaps.size()));
LOG.debug("Application {} sends out requests for {} failed mappers.",
appId, pendingFailedMaps.size());
scheduledMaps.addAll(pendingFailedMaps);
pendingFailedMaps.clear();
}
@ -308,17 +304,15 @@ public class MRAMSimulator extends AMSimulator {
if (!pendingReduces.isEmpty()) {
ask = packageRequests(mergeLists(pendingReduces, scheduledReduces),
PRIORITY_REDUCE);
LOG.debug(MessageFormat
.format("Application {0} sends out " + "requests for {1} reducers.",
appId, pendingReduces.size()));
LOG.debug("Application {} sends out requests for {} reducers.",
appId, pendingReduces.size());
scheduledReduces.addAll(pendingReduces);
pendingReduces.clear();
} else if (!pendingFailedReduces.isEmpty()) {
ask = packageRequests(mergeLists(pendingFailedReduces, scheduledReduces),
PRIORITY_REDUCE);
LOG.debug(MessageFormat.format(
"Application {0} sends out " + "request for {1} failed reducers.",
appId, pendingFailedReduces.size()));
LOG.debug("Application {} sends out request for {} failed reducers.",
appId, pendingFailedReduces.size());
scheduledReduces.addAll(pendingFailedReduces);
pendingFailedReduces.clear();
}

30
hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/nodemanager/NMSimulator.java
View File

@ -19,7 +19,6 @@
package org.apache.hadoop.yarn.sls.nodemanager;
import java.io.IOException;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
@ -51,11 +50,11 @@ import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNode;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.apache.hadoop.yarn.util.Records;
import org.apache.log4j.Logger;
import org.apache.hadoop.yarn.sls.scheduler.ContainerSimulator;
import org.apache.hadoop.yarn.sls.scheduler.TaskRunner;
import org.apache.hadoop.yarn.sls.utils.SLSUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Private
@Unstable
@ -74,7 +73,7 @@ public class NMSimulator extends TaskRunner.Task {
private ResourceManager rm;
// heart beat response id
private int RESPONSE_ID = 1;
private final static Logger LOG = Logger.getLogger(NMSimulator.class);
private final static Logger LOG = LoggerFactory.getLogger(NMSimulator.class);
public void init(String nodeIdStr, int memory, int cores,
int dispatchTime, int heartBeatInterval, ResourceManager rm)
@ -120,8 +119,7 @@ public class NMSimulator extends TaskRunner.Task {
while ((cs = containerQueue.poll()) != null) {
runningContainers.remove(cs.getId());
completedContainerList.add(cs.getId());
LOG.debug(MessageFormat.format("Container {0} has completed",
cs.getId()));
LOG.debug("Container {} has completed", cs.getId());
}
}
@ -148,14 +146,14 @@ public class NMSimulator extends TaskRunner.Task {
synchronized(amContainerList) {
amContainerList.remove(containerId);
}
LOG.debug(MessageFormat.format("NodeManager {0} releases " +
"an AM ({1}).", node.getNodeID(), containerId));
LOG.debug("NodeManager {} releases an AM ({}).",
node.getNodeID(), containerId);
} else {
cs = runningContainers.remove(containerId);
containerQueue.remove(cs);
releasedContainerList.add(containerId);
LOG.debug(MessageFormat.format("NodeManager {0} releases a " +
"container ({1}).", node.getNodeID(), containerId));
LOG.debug("NodeManager {} releases a container ({}).",
node.getNodeID(), containerId);
}
}
}
@ -189,8 +187,8 @@ public class NMSimulator extends TaskRunner.Task {
// add complete containers
synchronized(completedContainerList) {
for (ContainerId cId : completedContainerList) {
LOG.debug(MessageFormat.format("NodeManager {0} completed" +
" container ({1}).", node.getNodeID(), cId));
LOG.debug("NodeManager {} completed container ({}).",
node.getNodeID(), cId);
csList.add(newContainerStatus(
cId, ContainerState.COMPLETE, ContainerExitStatus.SUCCESS));
}
@ -199,8 +197,8 @@ public class NMSimulator extends TaskRunner.Task {
// released containers
synchronized(releasedContainerList) {
for (ContainerId cId : releasedContainerList) {
LOG.debug(MessageFormat.format("NodeManager {0} released container" +
" ({1}).", node.getNodeID(), cId));
LOG.debug("NodeManager {} released container ({}).",
node.getNodeID(), cId);
csList.add(newContainerStatus(
cId, ContainerState.COMPLETE, ContainerExitStatus.ABORTED));
}
@ -227,8 +225,8 @@ public class NMSimulator extends TaskRunner.Task {
* launch a new container with the given life time
*/
public void addNewContainer(Container container, long lifeTimeMS) {
LOG.debug(MessageFormat.format("NodeManager {0} launches a new " +
"container ({1}).", node.getNodeID(), container.getId()));
LOG.debug("NodeManager {} launches a new container ({}).",
node.getNodeID(), container.getId());
if (lifeTimeMS != -1) {
// normal container
ContainerSimulator cs = new ContainerSimulator(container.getId(),

8
hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/scheduler/SchedulerMetrics.java
View File

@ -60,14 +60,16 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairSchedule
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler;
import org.apache.hadoop.yarn.sls.conf.SLSConfiguration;
import org.apache.hadoop.yarn.sls.web.SLSWebApp;
import org.apache.log4j.Logger;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Private
@Unstable
public abstract class SchedulerMetrics {
private static final String EOL = System.getProperty("line.separator");
private static final int SAMPLING_SIZE = 60;
private static final Logger LOG = Logger.getLogger(SchedulerMetrics.class);
private static final Logger LOG =
LoggerFactory.getLogger(SchedulerMetrics.class);
protected ResourceScheduler scheduler;
protected Set<String> trackedQueues;
@ -420,7 +422,7 @@ public abstract class SchedulerMetrics {
SLSConfiguration.METRICS_RECORD_INTERVAL_MS_DEFAULT);
File dir = new File(metricsOutputDir + "/metrics");
if(!dir.exists() && !dir.mkdirs()) {
LOG.error("Cannot create directory " + dir.getAbsoluteFile());
LOG.error("Cannot create directory {}", dir.getAbsoluteFile());
}
final CsvReporter reporter = CsvReporter.forRegistry(metrics)
.formatFor(Locale.US)