Logstash配置以服务方式运行
Logstash官网最新版下载地址以及YUM源:https://www.elastic.co/cn/downloads/logstash
Logstash最常见的运行方式即命令行运行 ./bin/logstash -f logstash.conf 然后通过ctrl+c结束,这种方式的优点在于运行方便,但是缺点也很明显,不便于管理,同时如果遇到服务器重启,则维护成本会更高一些,如果在生产环境运行logstash建议还是使用服务的方式运行
1、修改config目录下的 startup.optins
JAVA_HOME=/usr/local/java/jdk1.8.0_171 LS_HOME=/usr/local/logstash-6.2.4 LS_OPTS="--path.settings ${LS_SETTINGS_DIR} --path.config /usr/local/logstash-6.2.4/logstash.d" #我们把logstash的配置文件*.conf都放在/usr/local/logstash-6.2.4/logstash.d目录下面 LS_USER=root LS_GROUP=root
2、创建服务
以root身份执行logstash命令创建服务
# /usr/local/logstash-6.2.4/bin/system-install
执行完后,会生成一个环境变量文件 /etc/default/logstash
另一个生成的则是主要的服务文件 /etc/systemd/system/logstash.service :
[Unit] Description=logstash [Service] Type=simple User=root Group=root # Load env vars from /etc/default/ and /etc/sysconfig/ if they exist. # Prefixing the path with '-' makes it try to load, but if the file doesn't # exist, it continues onward. EnvironmentFile=-/etc/default/logstash EnvironmentFile=-/etc/sysconfig/logstash ExecStart=/usr/local/logstash-6.2.4/bin/logstash "--path.settings" "/usr/local/logstash-6.2.4/config" "--path.config" "/usr/local/logstash-6.2.4/logstash.d" Restart=always WorkingDirectory=/ Nice=19 LimitNOFILE=16384 [Install] WantedBy=multi-user.target
# systemctl start logstash
# systemctl enable logstash
3、日志查看
默认情况下日志会保存在以下两个位置
- /var/log/messages
- /usr/local/logstash/logs
/logstash/config/logstash.yml:主要用于控制logstash运行时的状态
/logstash/config/startup.options:logstash 运行相关参数
配置参数说明:
logstash.yml 参数 用途 默认值 node.name 节点名称 主机名称 path.data /数据存储路径 LOGSTASH_HOME/data/ pipeline.workers 输出通道的工作workers数据量(提升输出效率) cpu核数 pipeline.output.workers 每个输出插件的工作wokers数量 1 pipeline.batch.size 每次input数量 125 path.config 过滤配置文件目录 config.reload.automatic 自动重新加载被修改配置 false or true config.reload.interval 配置文件检查时间 path.logs 日志输出路径 http.host 绑定主机地址,用户指标收集 “127.0.0.1” http.port 绑定端口 5000-9700 log.level 日志输出级别,如果config.debug开启,这里一定要是debug日志 info log.format 日志格式 * plain* path.plugins 自定义插件目录
startup.options参数:
JAVACMD=/usr/bin/java 本地jdk
LS_HOME=/opt/logstash logstash所在目录
LS_SETTINGS_DIR="${LS_HOME}/config" 默认logstash配置文件目录
LS_OPTS="–path.settings ${LS_SETTINGS_DIR}" logstash启动命令参数 指定配置文件目录
LS_JAVA_OPTS="" 指定jdk目录
LS_PIDFILE=/var/run/logstash.pid logstash.pid所在目录
LS_USER=logstash logstash启动用户
LS_GROUP=logstash logstash启动组
LS_GC_LOG_FILE=/var/log/logstash/gc.log logstash jvm gc日志路径
LS_OPEN_FILES=65534 logstash最多打开监控文件数量
示例logstash配置文件:
input { file { path => "/usr/local/nginx/logs/ad-access.log" type => "nginx--ad" start_position => "beginning" } beats { port => "5044" } } filter { grok { match => { "message" => "%{MYNGINX}" } } mutate { convert => [ "elapsed", "float" ] convert => [ "serverelapsed", "float" ] } } output { if [type] == "nginx--ad" { elasticsearch { hosts=> ["172.17.213.61:9200"] index=> "nginx-ad.%{+YYYY-MM}" } } else { elasticsearch { hosts => ["172.17.213.60:9200", "172.17.213.61:9200"] index => "adsdk.%{+YYYY-MM-DD}" manage_template => false template_overwrite => true template_name => "adsdk-template" template => "/usr/local/logstash-6.2.4/adsdk.template" document_type => "adsdk" } } }