出处：http://segmentfault.com/blogs
前言
Elasticsearch + Logstash + Kibana（ELK）是一套开源的日志管理方案，分析网站的访问情况时我们一般会借助Google/百度/CNZZ等方式嵌入JS做数据统计，但是当网站访问异常或者被攻击时我们需要在后台分析如Nginx的具体日志，而Nginx日志分割/GoAccess/Awstats都是相对简单的单节点解决方案，针对分布式集群或者数据量级较大时会显得心有余而力不足，而ELK的出现可以使我们从容面对新的挑战。
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Logstash：负责日志的收集，处理和储存
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Elasticsearch：负责日志检索和分析
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Kibana：负责日志的可视化
ELK(Elasticsearch + Logstash + Kibana)
更新记录
2015年08月31日 - 初稿
阅读原文 - http://wsgzao.github.io/post/elk/
扩展阅读
CentOS 7.x安装ELK(Elasticsearch+Logstash+Kibana) - http://www.chenshake.com/centos-install-7-x-elk-elasticsearchlogstashkibana/
Centos 6.5 安装nginx日志分析系统 elasticsearch + logstash + redis + kibana - http://blog.chinaunix.net/xmlrpc.php?r=blog/article&uid=17291169&id=4898582
logstash-forwarder and grok examples - https://www.ulyaoth.net/threads/logstash-forwarder-and-grok-examples.32413/
三斗室 - http://chenlinux.com/
elastic - https://www.elastic.co/guide
LTMP索引 - http://wsgzao.github.io/index/#LTMP
组件预览
JDK - http://www.oracle.com/technetwork/java/javase/downloads/index.html
Elasticsearch - https://www.elastic.co/downloads/elasticsearch
Logstash - https://www.elastic.co/downloads/logstash
Kibana - https://www.elastic.co/downloads/kibana
redis - http://redis.io/download
设置FQDN
创建SSL证书的时候需要配置FQDN
#修改hostname
cat /etc/hostname
elk#修改hosts
cat /etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6127.0.0.1 10-10-87-19
10.10.87.19 elk.ooxx.com elk#刷新环境
hostname -F /etc/hostname#复查结果
hostname -f
elk.ooxx.comhostname
elk
服务端
Java
cat /etc/redhat-release
CentOS release 6.5 (Final)yum install java-1.7.0-openjdk
java -versionjava version "1.7.0_85"
OpenJDK Runtime Environment (rhel-2.6.1.3.el6_6-x86_64 u85-b01)
OpenJDK 64-Bit Server VM (build 24.85-b03, mixed mode)
Elasticsearch
#下载安装
wget https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.7.1.noarch.rpm
yum localinstall elasticsearch-1.7.1.noarch.rpm #启动相关服务
service elasticsearch start
service elasticsearch status#查看Elasticsearch的配置文件
rpm -qc elasticsearch/etc/elasticsearch/elasticsearch.yml
/etc/elasticsearch/logging.yml
/etc/init.d/elasticsearch
/etc/sysconfig/elasticsearch
/usr/lib/sysctl.d/elasticsearch.conf
/usr/lib/systemd/system/elasticsearch.service
/usr/lib/tmpfiles.d/elasticsearch.conf#查看端口使用情况
netstat -nltpActive Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:9200 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:9300 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1509/sshd
tcp 0 0 :::22 :::* LISTEN 1509/sshd #测试访问
curl -X GET http://localhost:9200/
Kibana
#下载tar包
wget https://download.elastic.co/kibana/kibana/kibana-4.1.1-linux-x64.tar.gz
#解压
tar zxf kibana-4.1.1-linux-x64.tar.gz -C /usr/local/
cd /usr/local/
mv kibana-4.1.1-linux-x64 kibana#创建kibana服务
vi /etc/rc.d/init.d/kibana#!/bin/bash
### BEGIN INIT INFO
# Provides: kibana
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Runs kibana daemon
# Description: Runs the kibana daemon as a non-root user
### END INIT INFO# Process name
NAME=kibana
DESC="Kibana4"
PROG="/etc/init.d/kibana"# Configure location of Kibana bin
KIBANA_BIN=/usr/local/kibana/bin# PID Info
PID_FOLDER=/var/run/kibana/
PID_FILE=/var/run/kibana/$NAME.pid
LOCK_FILE=/var/lock/subsys/$NAME
PATH=/bin:/usr/bin:/sbin:/usr/sbin:$KIBANA_BIN
DAEMON=$KIBANA_BIN/$NAME# Configure User to run daemon process
DAEMON_USER=root
# Configure logging location
KIBANA_LOG=/var/log/kibana.log# Begin Script
RETVAL=0if [ `id -u` -ne 0 ]; thenecho "You need root privileges to run this script"exit 1
fi# Function library
. /etc/init.d/functionsstart() {echo -n "Starting $DESC : "pid=`pidofproc -p $PID_FILE kibana`if [ -n "$pid" ] ; thenecho "Already running."exit 0else# Start Daemon
if [ ! -d "$PID_FOLDER" ] ; thenmkdir $PID_FOLDERfi
daemon --user=$DAEMON_USER --pidfile=$PID_FILE $DAEMON 1>"$KIBANA_LOG" 2>&1 &sleep 2pidofproc node > $PID_FILERETVAL=$?[[ $? -eq 0 ]] && success || failure
echo[ $RETVAL = 0 ] && touch $LOCK_FILEreturn $RETVALfi
}reload()
{echo "Reload command is not implemented for this service."return $RETVAL
}stop() {echo -n "Stopping $DESC : "killproc -p $PID_FILE $DAEMONRETVAL=$?
echo[ $RETVAL = 0 ] && rm -f $PID_FILE $LOCK_FILE
}case "$1" instart)start
;;stop)stop;;status)status -p $PID_FILE $DAEMONRETVAL=$?;;restart)stopstart;;reload)
reload
;;*)
# Invalid Arguments, print the following message.echo "Usage: $0 {start|stop|status|restart}" >&2
exit 2;;
esac#修改启动权限
chmod +x /etc/rc.d/init.d/kibana#启动kibana服务
service kibana start
service kibana status#查看端口
netstat -nltpActive Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:9200 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:9300 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1509/sshd
tcp 0 0 0.0.0.0:5601 0.0.0.0:* LISTEN 1876/node
tcp 0 0 :::22 :::* LISTEN 1509/sshd
Logstash
#下载rpm包
wget https://download.elastic.co/logstash/logstash/packages/centos/logstash-1.5.4-1.noarch.rpm
#安装
yum localinstall logstash-1.5.4-1.noarch.rpm #设置ssl，之前设置的FQDN是elk.ooxx.com
cd /etc/pki/tls
#openssl req -x509 -batch -nodes -newkey rsa:2048 -keyout lumberjack.key -out lumberjack.crt -subj /CN=logstash.example.com
openssl req -subj '/CN=elk.ooxx.com/' -x509 -days 3650 -batch -nodes -newkey rsa:2048 -keyout private/logstash-forwarder.key -out certs/logstash-forwarder.crt#创建一个01-logstash-initial.conf文件
cat > /etc/logstash/conf.d/01-logstash-initial.conf << EOF
input {lumberjack {port => 5000type => "logs"ssl_certificate => "/etc/pki/tls/certs/logstash-forwarder.crt"ssl_key => "/etc/pki/tls/private/logstash-forwarder.key"}
}filter {if [type] == "syslog" {grok {match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:syslog_message}" }add_field => [ "received_at", "%{@timestamp}" ]add_field => [ "received_from", "%{host}" ]}syslog_pri { }date {match => [ "syslog_timestamp", "MMM d HH:mm:ss", "MMM dd HH:mm:ss" ]}}
}output {elasticsearch { host => localhost }stdout { codec => rubydebug }
}
EOF#启动logstash服务
service logstash start
service logstash status#查看5000端口
netstat -nltpActive Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:9200 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:9300 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:9301 0.0.0.0:* LISTEN 2309/java
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1509/sshd
tcp 0 0 0.0.0.0:5601 0.0.0.0:* LISTEN 1876/node
tcp 0 0 0.0.0.0:5000 0.0.0.0:* LISTEN 2309/java
tcp 0 0 :::22 :::* LISTEN 1509/sshd #启动服务
service logstash-forwarder start
service logstash-forwarder status#访问Kibana，Time-field name 选择 @timestamp
http://localhost:5601/#增加节点和客户端配置一样，注意同步证书
/etc/pki/tls/certs/logstash-forwarder.crt
客户端
Logstash Forwarder
#登陆到客户端，安装Logstash Forwarder
wget https://download.elastic.co/logstash-forwarder/binaries/logstash-forwarder-0.4.0-1.x86_64.rpm
yum localinstall logstash-forwarder-0.4.0-1.x86_64.rpm#查看logstash-forwarder的配置文件位置
rpm -qc logstash-forwarder
/etc/logstash-forwarder.conf#备份配置文件
cp /etc/logstash-forwarder.conf /etc/logstash-forwarder.conf.save#编辑 /etc/logstash-forwarder.conf，需要根据实际情况进行修改cat > /etc/logstash-forwarder.conf << EOF
{"network": {"servers": [ "elk.ooxx.com:5000" ],"ssl ca": "/etc/pki/tls/certs/logstash-forwarder.crt","timeout": 15},"files": [{"paths": ["/var/log/messages","/var/log/secure"],"fields": { "type": "syslog" }}]
}
EOF
配置Nginx日志策略
#修改客户端配置
vi /etc/logstash-forwarder.conf{"network": {"servers": [ "elk.ooxx.com:5000" ],"ssl ca": "/etc/pki/tls/certs/logstash-forwarder.crt","timeout": 15},"files": [{"paths": ["/var/log/messages","/var/log/secure"],"fields": { "type": "syslog" }}, {"paths": ["/app/local/nginx/logs/access.log"],"fields": { "type": "nginx" }}]
}#服务端增加patterns
mkdir /opt/logstash/patterns
vi /opt/logstash/patterns/nginxNGUSERNAME [a-zA-Z\.\@\-\+_%]+
NGUSER %{NGUSERNAME}
NGINXACCESS %{IPORHOST:remote_addr} - - \[%{HTTPDATE:time_local}\] "%{WORD:method} %{URIPATH:path}(?:%{URIPARAM:param})? HTTP/%{NUMBER:httpversion}" %{INT:status} %{INT:body_bytes_sent} %{QS:http_referer} %{QS:http_user_agent}#官网pattern的debug在线工具
https://grokdebug.herokuapp.com/#修改logstash权限
chown -R logstash:logstash /opt/logstash/patterns#修改服务端配置
vi /etc/logstash/conf.d/01-logstash-initial.conf input {lumberjack {port => 5000type => "logs"ssl_certificate => "/etc/pki/tls/certs/logstash-forwarder.crt"ssl_key => "/etc/pki/tls/private/logstash-forwarder.key"}
}filter {if [type] == "syslog" {grok {match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:syslog_message}" }add_field => [ "received_at", "%{@timestamp}" ]add_field => [ "received_from", "%{host}" ]}syslog_pri { }date {match => [ "syslog_timestamp", "MMM d HH:mm:ss", "MMM dd HH:mm:ss" ]}}if [type] == "nginx" {grok {match => { "message" => "%{NGINXACCESS}" }}}
}output {elasticsearch { host => localhost }stdout { codec => rubydebug }
}
其它注意事项
修改kibana端口
#编辑kibana.yaml
vi /usr/local/kibana/config/kibana.yml# Kibana is served by a back end server. This controls which port to use.
#port: 5601
port: 80# The host to bind the server to.
host: "0.0.0.0"# The Elasticsearch instance to use for all your queries.
elasticsearch_url: "http://localhost:9200"# preserve_elasticsearch_host true will send the hostname specified in `elasticsearch`. If you set it to false,
# then the host you use to connect to *this* Kibana instance will be sent.
elasticsearch_preserve_host: true# Kibana uses an index in Elasticsearch to store saved searches, visualizations
# and dashboards. It will create a new index if it doesn't already exist.
kibana_index: ".kibana"# If your Elasticsearch is protected with basic auth, this is the user credentials
# used by the Kibana server to perform maintence on the kibana_index at statup. Your Kibana
# users will still need to authenticate with Elasticsearch (which is proxied thorugh
# the Kibana server)
# kibana_elasticsearch_username: user
# kibana_elasticsearch_password: pass# If your Elasticsearch requires client certificate and key
# kibana_elasticsearch_client_crt: /path/to/your/client.crt
# kibana_elasticsearch_client_key: /path/to/your/client.key# If you need to provide a CA certificate for your Elasticsarech instance, put
# the path of the pem file here.
# ca: /path/to/your/CA.pem# The default application to load.
default_app_id: "discover"# Time in milliseconds to wait for elasticsearch to respond to pings, defaults to
# request_timeout setting
# ping_timeout: 1500# Time in milliseconds to wait for responses from the back end or elasticsearch.
# This must be > 0
request_timeout: 300000# Time in milliseconds for Elasticsearch to wait for responses from shards.
# Set to 0 to disable.
shard_timeout: 0# Time in milliseconds to wait for Elasticsearch at Kibana startup before retrying
# startup_timeout: 5000# Set to false to have a complete disregard for the validity of the SSL
# certificate.
verify_ssl: true# SSL for outgoing requests from the Kibana Server (PEM formatted)
# ssl_key_file: /path/to/your/server.key
# ssl_cert_file: /path/to/your/server.crt# Set the path to where you would like the process id file to be created.
# pid_file: /var/run/kibana.pid# If you would like to send the log output to a file you can set the path below.
# This will also turn off the STDOUT log output.
# log_file: ./kibana.log# Plugins that are included in the build, and no longer found in the plugins/ folder
bundled_plugin_ids:- plugins/dashboard/index- plugins/discover/index- plugins/doc/index- plugins/kibana/index- plugins/markdown_vis/index- plugins/metric_vis/index- plugins/settings/index- plugins/table_vis/index- plugins/vis_types/index- plugins/visualize/index
JVM调优
#修改elasticsearch.in.sh
vi /usr/share/elasticsearch/bin/elasticsearch.in.shif [ "x$ES_MIN_MEM" = "x" ]; thenES_MIN_MEM=1g
fi
if [ "x$ES_MAX_MEM" = "x" ]; thenES_MAX_MEM=1g