logstash实现日志文件同步到elasticsearch深入详解

引言：

之前博文介绍过了mysql/oracle与ES之间的同步机制。而logstash最初始的日志同步功能还没有介绍。本文就logstash同步日志到ES做下详细解读。

1、目的：

将本地磁盘存储的日志文件同步（全量同步、实时增量同步）到ES中。
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2、源文件：

[root@5b9dbaaa148a test_log]# ll
-rwxrwxrwx 1 root root 170 Jul 5 08:02 logmachine.sh
-rw-r--r-- 1 root root 66 Jul 5 08:25 MProbe01.log
-rw-r--r-- 1 root root 74 Jul 5 08:28 MProbe02.log

3、增量实时同步脚本：

[root@5b9dbaaa148a test_log]# cat logmachine.sh
#!/bin/bash
icnt=0;
while (true)
do
  echo "[debug][20160703-15:00]"$icnt >> MProbe01.log
  echo "[ERROR][20160704-17:00]"$icnt >> MProbe02.log
  icnt=$((icnt+1));
done

4、logstash配置文件：

[root@5b9dbaaa148a logstash_jdbc_test]# cat log_test.conf
input {
  file {
  path=> [ "/usr/local/logstash/bin/test_log/MProbe01.log",
"/usr/local/logstash/bin/test_log/MProbe02.log" ]
  #codec=>multiline {
  # pattern => "^s"
  # what=>"previous"
  #}
  type=>"probe_log"  #类型名称
  # tags=>["XX.XX.XX.XX"]
  }
}

###过滤
#filter{
# grok {
# match => ["message","mailmonitor"]
# add_tag => [mailmonitor]
# }

# grok {
# match => [ "message", "smsmonitor" ]
# add_tag => [smsmonitor]
# }
# ....
#}

###output to es
output {
  elasticsearch {
  hosts => "10.8.5.101:9200"
  index => "mprobe_index"     #索引名称
  #template_name => "mprobelog"
  #document_id => "%{id}"
  }
  stdout { codec => json_lines }
}

5、同步测试：

[root@5b9dbaaa148a bin]# ./logstash -f ./logstash_jdbc_test/log_test.conf
Settings: Default pipeline workers: 24
Pipeline main started
{"message":"[DEbug][20160305-15:35]testing02","@version":"1","@timestamp":"2016-07-05T07:26:08.043Z","path":"/usr/local/logstash/bin/test_log/MProbe01.log","host":"5b9dbaaa148a"

6、结果验证

（1）日志记录：

[root@5b9dbaaa148a test_log]# tail -f MProbe01.log
[DEbug][20160305-15:35]testing02
[DEbug][20160305-15:35]testing01
^C
[root@5b9dbaaa148a test_log]# tail -f MProbe02.log
[DEbug][20160305-15:35]testing02_001
[DEbug][20160305-15:35]testing02_003

（2）ES记录
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