本文介绍了一种简单易行的使用rsyslog向kafka,elasticsearch推送日志的方法；rsyslog的omkafka插件的安装、使用方法；rsyslog的omelasticsearch插件的安装、使用方法。
Kafka是一种开源的分布式消息系统，项目主页：kafka.apache.org elasticsearch是一种开源的分布式搜索引擎，项目主页：elastic.co
rsyslog使用omkafka向kafka推送日志，使用omelasticsearch向elasticsearch推送日志。这两个插件默认编译选项是关闭的，没有被编译到rsyslog中。下面介绍了具体的安装方法：
## add rsyslog repoWORK_DIR=$(pwd)cd /etc/yum.repos.dwget -O rsyslog.repocd $WORK_DIRmkdir rsyslog-installcd rsyslog-install# check rsyslog version# rsyslog supports kafka from v8.7.0old_rsyslog_ver=$(rsyslogd -version |head -n 1 | awk ‘{print $2}’)## install rsyslog dependency: libestryum install -y libestr-devel## install rsyslog dependency: libeeyum install -y libee-devel## install rsyslog dependency: json-cyum install -y json-c-devel## install rsyslog denpendency: uuidyum install -y libuuid-devel## install rsyslog denpendency: liblogging-stdlogyum install -y liblogging-devel## install rsyslog denpendency: rst2manyum install -y python-docutils## install libcurl for omelasticsearchyum install -y libcurl-devel## install librdkafka for omkafkawget https://github.com/edenhill/librdkafka/archive/0.8.5.tar.gz -O librdkafka-0.8.5.tar.gztar zxvf librdkafka-0.8.5.tar.gzcd librdkafka-0.8.5./configuremakemake installcd ..## install rsyslogwget 8.8.0.tar.gz -O rsyslog-8.8.0.tar.gztar zxvf rsyslog-8.8.0.tar.gzexport PKG_CONFIG_PATH=/usr/lib64/pkgconfig:/lib64/pkgconfig/old_executable_path=$(which rsyslogd)executable_dir=$(dirname “$old_executable_path”)cd rsyslog-8.8.0./configure –sbindir=$executable_dir –libdir=/usr/lib64 –enable-omkafka –enable-elasticsearchmakemake install## show installation result:new_rsyslog_ver=$(rsyslogd -version |head -n 1 | awk ‘{print $2}’)$(which rsyslogd)
我在Github上托管了相关代码： https://github.com/garyelephant/rsyslog-scripts
omkafka插件的详细文档见：
omelasticsearch插件的详细文档见：
配置示例：# /etc/rsyslog.conf# load required module# `imuxsock` provides support for local system logging (e.g. via logger command)module(load=”imuxsock”) module(load=”omkafka”)module(load=”omelasticsearch”)# push to kafkaaction(type=”omkafka” topic=”your_topic” broker=”your_kafka_broker_host_or_ip”)# or you can push to elasticsearchaction(type=”omelasticsearch” server=”your_elasticsearch_host_or_ip” searchIndex=”your_elasticsearch_index” searchType=”your_elasticsearch_index_type” )
启动 rsyslog
rsyslogd -n
在另一个终端用logger向rsyslog写数据
$ logger ‘hello world’References:
转载本文请注明作者和出处[Gary的影响力]，请勿用于任何商业用途！ Author: Gary Gao( garygaowork[at]gmail.com) 关注互联网、分布式、高性能、NoSQL
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