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Logstash是一个开源的用于收集，分析和存储日志的工具。
Logstash: Logstash服务的组件，用于处理传入的日志。不过是基于Elasticsearch配置使用。
Elasticsearch: 存储所有日志。
做个示例监控test-http、tomcat和test-api等系统的运行状态，输出error信息到elasticsearch。需要在每一台test服务器上安装配置。
一、下载
logstash：https://download.elastic.co/logstash/logstash/logstash-2.4.1.zip
unzip logstash-2.4.1.zip
二、log4j的配置
### 设置###
log4j.rootLogger = debug,stdout,D,E
### 输出信息到控制抬 ###
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
### 输出DEBUG 级别以上的日志到 path/logs/error.log ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = logs/log.log
log4j.appender.D.Append = true
log4j.appender.file.ImmediateFlush=false
log4j.appender.file.BufferedIO=true
log4j.appender.file.BufferSize=8192
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} %c [%t]-[%p] %m%n
### 输出ERROR 级别以上的日志到 path/logs/error.log ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File =logs/error.log
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss} %c [%t]-[%p] %m%n
三、test系统的logstash配置，注意logs目录位置和ElasticSearch的Hosts
# vim test-api.conf
input {
file {
path => "/opt/test-api/logs/error.log"
start_position => "beginning"
type => "test-api"
}
}
filter {
multiline {
pattern => "^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}"
negate => true
what => "previous"
}
grok {
match => { "message" => "%{TIMESTAMP_ISO8601:datetime} %{NOTSPACE:clazz} \[%{NOTSPACE:thread-id}\]\-\[%{LOGLEVEL:level}\] %{GREEDYDATA:msg}" }
}
}
output {
elasticsearch {
hosts => ["10.207.101.100:9200","10.207.101.101:9200","10.207.101.102:9200"]
index => "test_logs-%{+YYYYMMdd}"
document_type => "logs"
}
}
# cat test-http.conf
input {
file {
path => "/opt/test-http/logs/error.log"
start_position => "beginning"
type => "test"
}
}
filter {
multiline {
pattern => "^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}"
negate => true
what => "previous"
}
grok {
match => { "message" => "%{TIMESTAMP_ISO8601:datetime} %{NOTSPACE:clazz} \[%{NOTSPACE:thread-id}\]\-\[%{LOGLEVEL:level}\] %{GREEDYDATA:msg}" }
}
}
output {
elasticsearch {
hosts => ["10.207.101.100:9200","10.207.101.101:9200","10.207.101.102:9200"]
index => "test_logs-%{+YYYYMMdd}"
document_type => "logs"
}
}
# cat test_logs-tomcat.conf
input {
file {
path => "/opt/server/tomcat/logs/web.log"
start_position => "beginning"
type => "tomcat"
}
}
filter {
multiline {
pattern => "^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}"
negate => true
what => "previous"
}
grok {
match => { "message" => "%{TIMESTAMP_ISO8601:datetime} \[%{NOTSPACE:thread-id}\] %{LOGLEVEL:level}\s*%{NOTSPACE:clazz} \- %{GREEDYDATA:msg}" }
}
}
output {
elasticsearch {
hosts => ["10.207.101.100:9200","10.207.101.101:9200","10.207.101.102:9200"]
index => "test_logs-%{+YYYYMMdd}"
document_type => "logs"
}
}
设置启动
# cat test-start.sh
nohup bin/logstash -f test-http.conf > /dev/null 2>&1 &
nohup bin/logstash -f test-api.conf > /dev/null 2>&1 &
nohup bin/logstash -f test_logs-tomcat.conf > /dev/null 2>&1 &
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