filter plugins
过滤器插件对事件执行中间处理。过滤器通常根据事件的特性有条件地应用。
下面提供了filter plugins列表。
| Plugin | Description | Github repository |
| aggregate | Aggregates information from several events originating with a single task | logstash-filter-aggregate |
| alter | Performs general alterations to fields that the mutate filter does not handle | logstash-filter-alter |
| bytes | Parses string representations of computer storage sizes, such as "123 MB" or "5.6gb", into their numeric value in bytes | logstash-filter-b |