Logstash is an open-source server-side data processing pipeline. It can collect data from multiple sources, convert data, and send the data to your favorite "repository. Official Website introduction:Https://www.elastic.co/cn/products/logstash Https://www.elastic.co/downloads/logstash 1. Download Logstash depends on
I. Introduction of Logstash
Logstash is an open source data collection engine with real-time pipeline capabilities. Logstash can dynamically unify data from different data sources and standardize the data to the destination of your choice.
Second, Logstash processing process
log
Do Android 3 years, the network is not very concerned about, and now look let me eat a surprise, many of the previously expected features are open source, and powerful, try a bit. Simple trialDownload elasticsearch-1.4.2 and startDownload logstash-1.4.2, run the following commandBin/logstash-e ' input {stdin {}} output {elasticsearch {host = localhost}} 'The data entered by the console will be
The Logstash is a lightweight Log collection processing framework that allows you to easily collect scattered, diverse logs and customize them for processing, and then transferring them to a specific location, such as a server or file.
This article is for the Official document translation and practice, I hope there are more users to understand, use this tool. download, install, use
This tool is out-of-the-box software, download address stamp here, dow
The log generated by the general system or service is a long string. Each field is separated by a space. Logstash in the Get log is the entire string fetch, if it can be separated by the meaning of each field represented in the log is passed to Elasticsearch. The result will be better, and also make the Kibana more convenient to draw graphics.Grok is the most important plugin for Logstash. Its main role is
Tags: logstash mysql slowlog kibanaThis article will introduce the slow query log used by Logstash to collect MySQL , then push it to elasticsearchand create a custom index that will eventually be Kibana Web Showcase.Environment Introduction:Operating system version:centos6.6 64bitMySQL version: mysql5.6.17 and mysql5.1.36Logstash version : logstash-2.0.0.tar.gzE
In a production environment, Logstash often encounter logs that handle multiple formats, different log formats, and different parsing methods. The following is said Logstash processing multiline Log example, the MySQL slow query log analysis, this often encountered, the network has a lot of questions.MySQL slow query log format is as follows:
# User@host:ttlsa[ttlsa] @ [10.4.10.12] id:69641319# query_time:
Official website https://www.elastic.coSoftware version: Logstash 2.2.0 all Pluginselasticsearch 2.2.0Kibana 4.4.0Note: This environment becomes Centos6.5 64 bits, the single machine does the test, the specific configuration is simple.1.Logstash installation ConfigurationUnzip to/usr/local/logstash-2.2.0/Logstash confi
Some logs, such as Apache, do not support JSON with Grok plugins like NginxGrok using regular expressions for row-matching splitsThe predefined locations are defined in the/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-patterns-core-2.0.5/patternsApache in File Grok-patternsView official documentsHttps://www.elastic.co/guide/en/logstash/current/plugins-filte
Describes how to export log4j logs to Logstash from Java projects. First, log4j Foundation
Cannot exception the official introduction:
Log4j is a reliable, fast, flexible log framework (API) written in the Java language, and is licensed using Apache Software License. It is ported to C, C + +, C #, Perl, Python, Ruby, and Eiffel languages.
The log4j is highly configurable and is configured at run time using an external configuration file. It records lo
-flume-1.5.2-bin/tracklog-kafka/checkpointAgent.channels.m1.datadirs=/opt/modules/apache-flume-1.5.2-bin/tracklog-kafka/datadirAgent.channels.m1.transactionCapacity = 1000000agent.channels.m1.capacity=1000000Agent.channels.m1.checkpointInterval = 30000
Second, the data into the KafkaThe above collect topic need to be Kafka in advance, the other steps into the Kafka has been configured in the Collect.To create a topic statement reference:
%{kafka_home}/bin/kafka-topics.sh-
Data acquisition of Kafka and Logstash
Based on Logstash run-through Kafka still need to pay attention to a lot of things, the most important thing is to understand the principle of Kafka.
Logstash Working principleSince Kafka uses decoupled design ideas, it is not the original publication subscription, the producer is responsible for generating the
The Nginx Access log we collected through Logstash already contains the data for the client IP (REMOTE_ADDR), but only this IP is not enough, the location of the Kibana to display the requested source needs to be implemented by GEOIP database. GeoIP is the most common free IP address classification query library, but also has a pay version can be purchased. GeoIP Library can provide the corresponding geographical information according to the IP addres
input URL 192.168.135.129:5601 can not access, shut down the firewall is not, need to set up/etc/kibana/kibana.yml. Let's release some configuration and modify some configurations as followsThen landing outside the network, more refresh several times, the main network of Bo slow, enter the URL http://192.168.135.129:5601Ok!Final installation LogstashCreating a configuration fileThe content format has the following main input, filter and output three parts:1 Input {2 3 stdin {}4 }5 6 Filter {7 8
Logstash cannot read redis data
A problem occurred when constructing logsatsh + redis + elasticsearch today. After nearly one hour of troubleshooting, the problem was finally solved. Record it.
The environment is like this. A client sends data to redis on the server, and logstash on the server reads redis data and stores it in elasticsearch.
The initial problem is that on the server side, the log sent from
Nodejs
NPM install installation environment
Logstash log analysis and graphical display
Small search engines and graphical display
Ruby-developed tools are encapsulated into jar packages in the Java environment.
Logstash Analysis
Read logs from the back to the front in real time
Elastic search Storage
Kibana web page
Java-jar logstash-1.3.2-fla
Flume compared with Logstash, the personal experience is as follows:
Logstash more emphasis on the preprocessing of the field, while flume emphasis on data transmission;
Logstash has dozens of plug-ins, flexible configuration, Flume is to emphasize the user's custom development (source and sink kind also has ten or twenty, the channel is relatively s
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