figured it out xpath.
I tried mutating the index inside the elastic stack to avail.
I'm thinking your mutate conversion syntax is incorrect and possibly the field names. Looking at the documentation, try this syntax:
mutate {
convert => {
"[Info][0][RunDate] => "date"
"[Info][1][ProcessingTime] => "float"
}
}
I mention the field name's possibly being incorrect because you specify the target as being xml_content. This should change the field values to xml_content.Info.0.RunDate and xml_content.Info.1.ProcessingTime. If you have an output of what the data looks like from Kibana or the query results directly from Elasticsearch, we would know for sure.