我有一个格式的JSON:
{ "SOURCE":"Source A", "Model":"ModelABC", "Qty":"3" }
我正在尝试使用logstash解析此JSON。基本上,我希望Logstash输出是可以使用kibana进行分析的key:value对的列表。我认为可以开箱即用。从大量的阅读中,我了解到我必须使用grok插件(我仍然不确定json插件的用途)。但是我无法获得所有领域的事件。我收到多个事件(甚至对于JSON的每个属性都一个)。像这样:
{ "message" => " \"SOURCE\": \"Source A\",", "@version" => "1", "@timestamp" => "2014-08-31T01:26:23.432Z", "type" => "my-json", "tags" => [ [0] "tag-json" ], "host" => "myserver.example.com", "path" => "/opt/mount/ELK/json/mytestjson.json" } { "message" => " \"Model\": \"ModelABC\",", "@version" => "1", "@timestamp" => "2014-08-31T01:26:23.438Z", "type" => "my-json", "tags" => [ [0] "tag-json" ], "host" => "myserver.example.com", "path" => "/opt/mount/ELK/json/mytestjson.json" } { "message" => " \"Qty\": \"3\",", "@version" => "1", "@timestamp" => "2014-08-31T01:26:23.438Z", "type" => "my-json", "tags" => [ [0] "tag-json" ], "host" => "myserver.example.com", "path" => "/opt/mount/ELK/json/mytestjson.json" }
我应该使用多行编解码器还是json_lines编解码器?如果是这样,我该怎么做?我是否需要编写自己的grok模式,或者是否有JSON通用的东西,可以为我在上述一个事件中获得的key:value对提供一个事件?我找不到任何可以说明这一点的文档。任何帮助,将不胜感激。我的配置文件如下所示:
input { file { type => "my-json" path => ["/opt/mount/ELK/json/mytestjson.json"] codec => json tags => "tag-json" } } filter { if [type] == "my-json" { date { locale => "en" match => [ "RECEIVE-TIMESTAMP", "yyyy-mm-dd HH:mm:ss" ] } } } output { elasticsearch { host => localhost } stdout { codec => rubydebug } }
我想我找到了解决我问题的可行方法。我不确定这是否是一种干净的解决方案,但它有助于解析上述类型的多行JSON。
input { file { codec => multiline { pattern => '^\{' negate => true what => previous } path => ["/opt/mount/ELK/json/*.json"] start_position => "beginning" sincedb_path => "/dev/null" exclude => "*.gz" } } filter { mutate { replace => [ "message", "%{message}}" ] gsub => [ 'message','\n',''] } if [message] =~ /^{.*}$/ { json { source => message } } } output { stdout { codec => rubydebug } }
我的多行编码解码器无法处理最后一个花括号,因此不会以JSON形式出现json { source => message }。因此,mutate过滤器:
json { source => message }
replace => [ "message", "%{message}}" ]
那增加了缺少的括号。和
gsub => [ 'message','\n','']
删除\n引入的字符。最后,我有一个单行JSON,可以读取json { source => message }
\n
如果有一种更干净/更简便的方法将原始的多行JSON转换为单行JSON,请执行POST,因为我觉得上述内容不太干净。