[QUESTION]:[processor_add_fields processor] IgnoreIfExist 是否存在无效情况？

[JarvanBest]

如图配置，IgnoreIfExist 设置为true
模拟采集数据如下：
echo '{"timestamp": "2024-03-27T12:00:00","message": "Error occurred","severity": "ERROR"}' >> Add_Fields.log

处理之后的数据如下：并没有忽略已有的字段
{"content":"{"timestamp": "2024-03-27T12:00:00","message": "Error occurred","severity": "ERROR"}","severity":"ERROR","time":"1711593722"}