search
HomeBackend DevelopmentPHP TutorialUse flume kafka storm to build a real-time log analysis system_PHP tutorial

Use flume kafka storm to build a real-time log analysis system

This article will only cover the combination of flume and kafka. For the combination of kafka and storm, you can refer to other blogs
1. Flume installation and use
Download the flume installation package http://www.apache.org/dyn/closer.cgi/flume/1.5.2/apache-flume-1.5.2-bin.tar.gz
Unzip $ tar -xzvf apache- flume-1.5.2-bin.tar.gz -C /opt/flume
The flume configuration file is placed in the conf file directory, and the execution file is placed in the bin file directory.
1) Configure flume
Go to the conf directory and copy flume-conf.properties.template and name it what you need
$ cp flume-conf.properties.template flume.conf
Modify the contents of flume.conf. We use file sink to receive data in the channel. The channel uses memory channel and the source uses exec source. The configuration file is as follows:
<ol style="margin:0 1px 0 0px;padding-left:40px;" start="1" class="dp-css"><li>agent.sources = seqGenSrc</li><li>agent.channels = memoryChannel</li><li>agent.sinks = loggerSink</li><li></li><li># For each one of the sources, the type is defined</li><li>agent.sources.seqGenSrc.type = exec</li><li>agent.sources.seqGenSrc.command = tail -F /data/mongodata/mongo.log</li><li>#agent.sources.seqGenSrc.bind = 172.168.49.130</li><li></li><li># The channel can be defined as follows.</li><li>agent.sources.seqGenSrc.channels = memoryChannel</li><li></li><li># Each sink's type must be defined</li><li>agent.sinks.loggerSink.type = file_roll</li><li>agent.sinks.loggerSink.sink.directory = /data/flume</li><li></li><li>#Specify the channel the sink should use</li><li>agent.sinks.loggerSink.channel = memoryChannel</li><li></li><li># Each channel's type is defined.</li><li>agent.channels.memoryChannel.type = memory</li><li></li><li># Other config values specific to each type of channel(sink or source)</li><li># can be defined as well</li><li># In this case, it specifies the capacity of the memory channel</li><li>agent.channels.memoryChannel.capacity = 1000</li><li>agent.channels.memory4log.transactionCapacity = 100</li></ol>
2) Run flume agent
and switch to the bin directory. Next, run the command:
$ ./flume-ng agent --conf ../conf -f ../conf/flume.conf --n agent -Dflume.root.logger=INFO,console
The generated log files can be seen in the /data/flume directory.

2. Combined with kafka
Since flume1.5.2 does not have a kafka sink, you need to develop a kafka sink yourself
You can refer to the kafka sink in flume 1.6, but pay attention to the kafka version used, because some kafka API incompatible
Only the core code and process() content are provided here.

<ol style="margin:0 1px 0 0px;padding-left:40px;" start="1" class="dp-css"><li>Sink.Status status = Status.READY;<br /> </li><li><br /></li><li>Channel ch = getChannel();<br /></li><li>Transaction transaction = null;<br /></li><li>Event event = null;<br /></li><li>String eventTopic = null;<br /></li><li>String eventKey = null;<br /></li><li><br /></li><li>try {<br /></li><li>transaction = ch.getTransaction();<br /></li><li>transaction.begin();<br /></li><li>messageList.clear();<br /></li><li><br /></li><li>if (type.equals("sync")) {<br /></li><li>event = ch.take();<br /></li><li><br /></li><li> if (event != null) {<br /></li><li>        byte[] tempBody = event.getBody();<br /></li><li> String eventBody = new String(tempBody,"UTF-8");<br /></li><li> Map<String, String> headers = event.getHeaders();<br /></li><li><br /></li><li> if ((eventTopic = headers.get(TOPIC_HDR)) == null) {<br /></li><li>          eventTopic = topic;<br /></li><li> }<br /></li><li><br /></li><li>        eventKey = headers.get(KEY_HDR);<br /></li><li><br /></li><li> if (logger.isDebugEnabled()) {<br /></li><li> logger.debug("{Event} " + eventTopic + " : " + eventKey + " : "<br /></li><li> + eventBody);<br /></li><li> }<br /></li><li> <br /></li><li>        ProducerData<String, Message> data = new ProducerData<String, Message><br /></li><li> (eventTopic, new Message(tempBody));<br /></li><li> <br /></li><li> long startTime = System.nanoTime();<br /></li><li> logger.debug(eventTopic+"++++"+eventBody);<br /></li><li>        producer.send(data);<br /></li><li> long endTime = System.nanoTime(); </li><li> }<br /></li><li>} else {<br /></li><li>long processedEvents = 0;<br /></li><li>for (; processedEvents < batchSize; processedEvents += 1) {<br /></li><li>event = ch.take();<br /></li><li><br /></li><li> if (event == null) {<br /></li><li> break;<br /></li><li> }<br /></li><li><br /></li><li> byte[] tempBody = event.getBody();<br /></li><li> String eventBody = new String(tempBody,"UTF-8");<br /></li><li> Map<String, String> headers = event.getHeaders();<br /></li><li><br /></li><li> if ((eventTopic = headers.get(TOPIC_HDR)) == null) {<br /></li><li>          eventTopic = topic;<br /></li><li> }<br /></li><li><br /></li><li>        eventKey = headers.get(KEY_HDR);<br /></li><li><br /></li><li> if (logger.isDebugEnabled()) {<br /></li><li> logger.debug("{Event} " + eventTopic + " : " + eventKey + " : "<br /></li><li> + eventBody);<br /></li><li> logger.debug("event #{}", processedEvents);<br /></li><li> }<br /></li><li><br /></li><li> // create a message and add to buffer<br /></li><li>        ProducerData<String, String> data = new ProducerData<String, String><br /></li><li> (eventTopic, eventBody);<br /></li><li>        messageList.add(data);<br /></li><li>}<br /></li><li><br /></li><li>// publish batch and commit.<br /></li><li> if (processedEvents > 0) {<br /></li><li> long startTime = System.nanoTime(); </li><li> long endTime = System.nanoTime(); </li><li> }<br /></li><li>}<br /></li><li><br /></li><li>transaction.commit();<br /></li><li>} catch (Exception ex) {<br /></li><li>String errorMsg = "Failed to publish events";<br /></li><li>logger.error("Failed to publish events", ex);<br /></li><li>status = Status.BACKOFF;<br /></li><li>if (transaction != null) {<br /></li><li>try {<br /></li><li>transaction.rollback(); </li><li>} catch (Exception e) {<br /></li><li>logger.error("Transaction rollback failed", e);<br /></li><li>throw Throwables.propagate(e);<br /></li><li>}<br /></li><li>}<br /></li><li>throw new EventDeliveryException(errorMsg, ex);<br /></li><li>} finally {<br /></li><li>if (transaction != null) {<br /></li><li>transaction.close();<br /></li><li>}<br /></li><li>}<br /></li><li><br /></li><li>return status; </li></ol>
Next, modify the flume configuration file and change the configuration of the sink part to kafka sink, such as:

<ol style="margin:0 1px 0 0px;padding-left:40px;" start="1" class="dp-css"><li>producer.sinks.r.type = org.apache.flume.sink.kafka.KafkaSink<br /> </li><li>producer.sinks.r.brokerList = bigdata-node00:9092<br /></li><li>producer.sinks.r.requiredAcks = 1<br /></li><li>producer.sinks.r.batchSize = 100<br /></li><li>#producer.sinks.r.kafka.producer.type=async<br /></li><li>#producer.sinks.r.kafka.customer.encoding=UTF-8<br /></li><li>producer.sinks.r.topic = testFlume1</li></ol>
type points to the full path of kafkasink
below The parameters are all a series of kafka parameters, the most important ones are the brokerList and topic parameters

Now restart flume, you can view the corresponding logs under the corresponding topic of kafka

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/1109725.htmlTechArticleUsing flume kafka storm to build a real-time log analysis system. This article will only cover the combination of flume and kafka, and the combination of kafka and storm. You can refer to other blogs 1. Flume installation uses download flume installation...
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
The Continued Use of PHP: Reasons for Its EnduranceThe Continued Use of PHP: Reasons for Its EnduranceApr 19, 2025 am 12:23 AM

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python: Exploring Their Similarities and DifferencesPHP and Python: Exploring Their Similarities and DifferencesApr 19, 2025 am 12:21 AM

PHP and Python are both high-level programming languages ​​that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

PHP and Python: Different Paradigms ExplainedPHP and Python: Different Paradigms ExplainedApr 18, 2025 am 12:26 AM

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP and Python: A Deep Dive into Their HistoryPHP and Python: A Deep Dive into Their HistoryApr 18, 2025 am 12:25 AM

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

Choosing Between PHP and Python: A GuideChoosing Between PHP and Python: A GuideApr 18, 2025 am 12:24 AM

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP and Frameworks: Modernizing the LanguagePHP and Frameworks: Modernizing the LanguageApr 18, 2025 am 12:14 AM

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHP's Impact: Web Development and BeyondPHP's Impact: Web Development and BeyondApr 18, 2025 am 12:10 AM

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

How does PHP type hinting work, including scalar types, return types, union types, and nullable types?How does PHP type hinting work, including scalar types, return types, union types, and nullable types?Apr 17, 2025 am 12:25 AM

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values ​​and handle functions that may return null values.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment