做网站三河,网站建设总体上可划分为两个阶段,新网站建设特色,平面设计是干嘛的 主要学什么cloudwatch在此博客中#xff0c;我将解释如何为您的Mule CloudHub应用程序启用AWS Cloudwatch日志 。 AWS提供了Cloudwatch Logs Services#xff0c;以便您可以更好地管理日志。 它比松散便宜。 由于cloudhub会自动翻转超过100 MB的日志#xff0c;因此我们需要一种机制来… cloudwatch 在此博客中我将解释如何为您的Mule CloudHub应用程序启用AWS Cloudwatch日志 。 AWS提供了Cloudwatch Logs Services以便您可以更好地管理日志。 它比松散便宜。 由于cloudhub会自动翻转超过100 MB的日志因此我们需要一种机制来更有效地管理日志。 为此我们创建此自定义附加程序它将日志发送到cloudwatch。 package com.javaroots.appenders;import static java.util.Comparator.comparing;
import static java.util.stream.Collectors.toList;import java.io.Serializable;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Formatter;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.core.Filter;
import org.apache.logging.log4j.core.Layout;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.appender.AbstractAppender;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
import org.apache.logging.log4j.core.config.plugins.PluginElement;
import org.apache.logging.log4j.core.config.plugins.PluginFactory;
import org.apache.logging.log4j.status.StatusLogger;import com.amazonaws.regions.Regions;
import com.amazonaws.services.logs.AWSLogs;
import com.amazonaws.services.logs.model.CreateLogGroupRequest;
import com.amazonaws.services.logs.model.CreateLogStreamRequest;
import com.amazonaws.services.logs.model.CreateLogStreamResult;
import com.amazonaws.services.logs.model.DataAlreadyAcceptedException;
import com.amazonaws.services.logs.model.DescribeLogGroupsRequest;
import com.amazonaws.services.logs.model.DescribeLogStreamsRequest;
import com.amazonaws.services.logs.model.InputLogEvent;
import com.amazonaws.services.logs.model.InvalidSequenceTokenException;
import com.amazonaws.services.logs.model.LogGroup;
import com.amazonaws.services.logs.model.LogStream;
import com.amazonaws.services.logs.model.PutLogEventsRequest;
import com.amazonaws.services.logs.model.PutLogEventsResult;Plugin(name CLOUDW, category Core, elementType appender, printObject true)
public class CloudwatchAppender extends AbstractAppender {/*** */private static final long serialVersionUID 12321345L;private static Logger logger2 LogManager.getLogger(CloudwatchAppender.class);private final Boolean DEBUG_MODE System.getProperty(log4j.debug) ! null;/*** Used to make sure that on close() our daemon thread isnt also trying to sendMessage()s*/private Object sendMessagesLock new Object();/*** The queue used to buffer log entries*/private LinkedBlockingQueue loggingEventsQueue;/*** the AWS Cloudwatch Logs API client*/private AWSLogs awsLogsClient;private AtomicReference lastSequenceToken new AtomicReference();/*** The AWS Cloudwatch Log group name*/private String logGroupName;/*** The AWS Cloudwatch Log stream name*/private String logStreamName;/*** The queue / buffer size*/private int queueLength 1024;/*** The maximum number of log entries to send in one go to the AWS Cloudwatch Log service*/private int messagesBatchSize 128;private AtomicBoolean cloudwatchAppenderInitialised new AtomicBoolean(false);private CloudwatchAppender(final String name,final Layout layout,final Filter filter,final boolean ignoreExceptions,String logGroupName, String logStreamName,Integer queueLength,Integer messagesBatchSize) {super(name, filter, layout, ignoreExceptions);this.logGroupName logGroupName;this.logStreamName logStreamName;this.queueLength queueLength;this.messagesBatchSize messagesBatchSize;this.activateOptions();}Overridepublic void append(LogEvent event) {if (cloudwatchAppenderInitialised.get()) {loggingEventsQueue.offer(event);} else {// just do nothing}}public void activateOptions() {if (isBlank(logGroupName) || isBlank(logStreamName)) {logger2.error(Could not initialise CloudwatchAppender because either or both LogGroupName( logGroupName ) and LogStreamName( logStreamName ) are null or empty);this.stop();} else {//below lines work with aws version 1.9.40 for local build//this.awsLogsClient new AWSLogsClient();//awsLogsClient.setRegion(Region.getRegion(Regions.AP_SOUTHEAST_2));this.awsLogsClient com.amazonaws.services.logs.AWSLogsClientBuilder.standard().withRegion(Regions.AP_SOUTHEAST_2).build();loggingEventsQueue new LinkedBlockingQueue(queueLength);try {initializeCloudwatchResources();initCloudwatchDaemon();cloudwatchAppenderInitialised.set(true);} catch (Exception e) {logger2.error(Could not initialise Cloudwatch Logs for LogGroupName: logGroupName and LogStreamName: logStreamName, e);if (DEBUG_MODE) {System.err.println(Could not initialise Cloudwatch Logs for LogGroupName: logGroupName and LogStreamName: logStreamName);e.printStackTrace();}}}}private void initCloudwatchDaemon() {Thread t new Thread(() - {while (true) {try {if (loggingEventsQueue.size() 0) {sendMessages();}Thread.currentThread().sleep(20L);} catch (InterruptedException e) {if (DEBUG_MODE) {e.printStackTrace();}}}});t.setName(CloudwatchThread);t.setDaemon(true);t.start();}private void sendMessages() {synchronized (sendMessagesLock) {LogEvent polledLoggingEvent;final Layout layout getLayout();List loggingEvents new ArrayList();try {while ((polledLoggingEvent loggingEventsQueue.poll()) ! null loggingEvents.size() messagesBatchSize) {loggingEvents.add(polledLoggingEvent);}List inputLogEvents loggingEvents.stream().map(loggingEvent - new InputLogEvent().withTimestamp(loggingEvent.getTimeMillis()).withMessage(layout null ?loggingEvent.getMessage().getFormattedMessage():new String(layout.toByteArray(loggingEvent), StandardCharsets.UTF_8))).sorted(comparing(InputLogEvent::getTimestamp)).collect(toList());if (!inputLogEvents.isEmpty()) {PutLogEventsRequest putLogEventsRequest new PutLogEventsRequest(logGroupName,logStreamName,inputLogEvents);try {putLogEventsRequest.setSequenceToken(lastSequenceToken.get());PutLogEventsResult result awsLogsClient.putLogEvents(putLogEventsRequest);lastSequenceToken.set(result.getNextSequenceToken());} catch (DataAlreadyAcceptedException dataAlreadyAcceptedExcepted) {putLogEventsRequest.setSequenceToken(dataAlreadyAcceptedExcepted.getExpectedSequenceToken());PutLogEventsResult result awsLogsClient.putLogEvents(putLogEventsRequest);lastSequenceToken.set(result.getNextSequenceToken());if (DEBUG_MODE) {dataAlreadyAcceptedExcepted.printStackTrace();}} catch (InvalidSequenceTokenException invalidSequenceTokenException) {putLogEventsRequest.setSequenceToken(invalidSequenceTokenException.getExpectedSequenceToken());PutLogEventsResult result awsLogsClient.putLogEvents(putLogEventsRequest);lastSequenceToken.set(result.getNextSequenceToken());if (DEBUG_MODE) {invalidSequenceTokenException.printStackTrace();}}}} catch (Exception e) {if (DEBUG_MODE) {logger2.error( error inserting cloudwatch:,e);e.printStackTrace();}}}}private void initializeCloudwatchResources() {DescribeLogGroupsRequest describeLogGroupsRequest new DescribeLogGroupsRequest();describeLogGroupsRequest.setLogGroupNamePrefix(logGroupName);Optional logGroupOptional awsLogsClient.describeLogGroups(describeLogGroupsRequest).getLogGroups().stream().filter(logGroup - logGroup.getLogGroupName().equals(logGroupName)).findFirst();if (!logGroupOptional.isPresent()) {CreateLogGroupRequest createLogGroupRequest new CreateLogGroupRequest().withLogGroupName(logGroupName);awsLogsClient.createLogGroup(createLogGroupRequest);}DescribeLogStreamsRequest describeLogStreamsRequest new DescribeLogStreamsRequest().withLogGroupName(logGroupName).withLogStreamNamePrefix(logStreamName);Optional logStreamOptional awsLogsClient.describeLogStreams(describeLogStreamsRequest).getLogStreams().stream().filter(logStream - logStream.getLogStreamName().equals(logStreamName)).findFirst();if (!logStreamOptional.isPresent()) {CreateLogStreamRequest createLogStreamRequest new CreateLogStreamRequest().withLogGroupName(logGroupName).withLogStreamName(logStreamName);CreateLogStreamResult o awsLogsClient.createLogStream(createLogStreamRequest);}}private boolean isBlank(String string) {return null string || string.trim().length() 0;}protected String getSimpleStacktraceAsString(final Throwable thrown) {final StringBuilder stackTraceBuilder new StringBuilder();for (StackTraceElement stackTraceElement : thrown.getStackTrace()) {new Formatter(stackTraceBuilder).format(%s.%s(%s:%d)%n,stackTraceElement.getClassName(),stackTraceElement.getMethodName(),stackTraceElement.getFileName(),stackTraceElement.getLineNumber());}return stackTraceBuilder.toString();}Overridepublic void start() {super.start();}Overridepublic void stop() {super.stop();while (loggingEventsQueue ! null !loggingEventsQueue.isEmpty()) {this.sendMessages();}}Overridepublic String toString() {return CloudwatchAppender.class.getSimpleName() { name getName() loggroupName logGroupName logstreamName logStreamName;}PluginFactorySuppressWarnings(unused)public static CloudwatchAppender createCloudWatchAppender(PluginAttribute(value queueLength ) Integer queueLength,PluginElement(Layout) Layout layout,PluginAttribute(value logGroupName) String logGroupName,PluginAttribute(value logStreamName) String logStreamName,PluginAttribute(value name) String name,PluginAttribute(value ignoreExceptions, defaultBoolean false) Boolean ignoreExceptions,PluginAttribute(value messagesBatchSize) Integer messagesBatchSize){return new CloudwatchAppender(name, layout, null, ignoreExceptions, logGroupName, logStreamName ,queueLength,messagesBatchSize);}
} 我们在pom.xml文件中添加依赖项。 dependencygroupIdcom.amazonaws/groupIdartifactIdaws-java-sdk-logs/artifactId!-- for local 3.8.5 we need to use this version cloudhub 3.8.5 has jackson 2.6.6 --!-- version1.9.40/version --version1.11.105/versionexclusionsexclusion !-- declare the exclusion here --groupIdorg.apache.logging.log4j/groupIdartifactIdlog4j-1.2-api/artifactId/exclusionexclusion !-- declare the exclusion here --groupIdcom.fasterxml.jackson.core/groupIdartifactIdjackson-core/artifactId/exclusionexclusion !-- declare the exclusion here --groupIdcom.fasterxml.jackson.core/groupIdartifactIdjackson-databind/artifactId/exclusion/exclusions/dependency!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-api --dependencygroupIdorg.apache.logging.log4j/groupIdartifactIdlog4j-api/artifactIdversion2.5/version/dependency!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core --dependencygroupIdorg.apache.logging.log4j/groupIdartifactIdlog4j-core/artifactIdversion2.5/version/dependency 现在我们需要修改log4j2.xml。 还要添加自定义cloudwatch附加程序和CloudhubLogs附加程序以便我们也可以获取cloudhub上的日志。 ?xml version1.0 encodingutf-8?
Configuration statustrace packagesau.edu.vu.appenders,com.mulesoft.ch.logging.appender!--These are some of the loggers you can enable. There are several more you can find in the documentation. Besides this log4j configuration, you can also use Java VM environment variablesto enable other logs like network (-Djavax.net.debugssl or all) and Garbage Collector (-XX:PrintGC). These will be append to the console, so you will see them in the mule_ee.log file. --AppendersCLOUDW nameCloudW logGroupNametest-log-stream logStreamNametest44 messagesBatchSize${sys:cloudwatch.msg.batch.size} queueLength${sys:cloudwatch.queue.length}PatternLayout pattern%d [%t] %-5p %c - %m%n//CLOUDWLog4J2CloudhubLogAppender nameCLOUDHUBaddressProvidercom.mulesoft.ch.logging.DefaultAggregatorAddressProviderapplicationContextcom.mulesoft.ch.logging.DefaultApplicationContextappendRetryIntervalMs${sys:logging.appendRetryInterval}appendMaxAttempts${sys:logging.appendMaxAttempts}batchSendIntervalMs${sys:logging.batchSendInterval}batchMaxRecords${sys:logging.batchMaxRecords}memBufferMaxSize${sys:logging.memBufferMaxSize}journalMaxWriteBatchSize${sys:logging.journalMaxBatchSize}journalMaxFileSize${sys:logging.journalMaxFileSize}clientMaxPacketSize${sys:logging.clientMaxPacketSize}clientConnectTimeoutMs${sys:logging.clientConnectTimeout}clientSocketTimeoutMs${sys:logging.clientSocketTimeout}serverAddressPollIntervalMs${sys:logging.serverAddressPollInterval}serverHeartbeatSendIntervalMs${sys:logging.serverHeartbeatSendIntervalMs}statisticsPrintIntervalMs${sys:logging.statisticsPrintIntervalMs}PatternLayout pattern[%d{MM-dd HH:mm:ss}] %-5p %c{1} [%t] CUSTOM: %m%n//Log4J2CloudhubLogAppender/AppendersLoggers!-- Http Logger shows wire traffic on DEBUG --AsyncLogger nameorg.mule.module.http.internal.HttpMessageLogger levelWARN/!-- JDBC Logger shows queries and parameters values on DEBUG --AsyncLogger namecom.mulesoft.mule.transport.jdbc levelWARN/!-- CXF is used heavily by Mule for web services --AsyncLogger nameorg.apache.cxf levelWARN/!-- Apache Commons tend to make a lot of noise which can clutter the log--AsyncLogger nameorg.apache levelWARN/!-- Reduce startup noise --AsyncLogger nameorg.springframework.beans.factory levelWARN/!-- Mule classes --AsyncLogger nameorg.mule levelINFO/AsyncLogger namecom.mulesoft levelINFO/!-- Reduce DM verbosity --AsyncLogger nameorg.jetel levelWARN/AsyncLogger nameTracking levelWARN/AsyncRoot levelINFOAppenderRef refCLOUDHUB levelINFO/AppenderRef refCloudW levelINFO//AsyncRoot/Loggers
/Configuration 最后我们需要在cloudhub运行时管理器上禁用cloudhub日志。 这适用于cloudhub mule运行时版本3.8.4。 cloudhub 3.8.5版本存在一些问题该版本已正确初始化并发送日志但是缺少事件和消息。 翻译自: https://www.javacodegeeks.com/2017/10/integrate-cloudwatch-logs-cloudhub-mule.htmlcloudwatch
