README.md

timelineFromCSV

Convert logs into request timeline diagram

Manual

➜ go run main.go --help
  -beginRegex string
        regex that should have a match on beginning message
  -csv string
        input CSV file
  -endRegex string
        regex that should have a match on ending message
  -fieldId string
        which field will be used as ID
  -fieldMsg string
        which field will be used as message
  -fieldTs string
        which field will be used as timestamp
  -format string
        What should the output format be: html OR html-datadog OR OR trace-json OR trace-html (default "html")
  -onlyExtreme
        Expose only extreme case (when most ongoing traces, ignores threshold!) (default true)
  -operationRegex string
        regex that should extract (as the first group) the operation name
  -outFile string
        Where should the output timeline diagram be placed (default "output.html")
  -threshold string
        what event length is minimal to consider it (default "1s")
  -tsFormat string
        how to parse the ts field - use Golang syntax: https://golang.org/pkg/time/#Parse

Example

Having input like this (extracted and anonimized output from DD but you should be able to get similar output from your centralized logging service):

date,Host,Traceid,message
2021-06-23T08:52:58.506Z,server-app,2021-06-23T08:52:58.506613-11843,"Response..."
2021-06-23T08:52:56.952Z,server-app,2021-06-23T08:52:03.302112-11758,"Request received..."
.....

If we run the script:

go run main.go \
-csv /tmp/extract.csv \
-fieldId "Traceid" \
-fieldTs "date" \
-tsFormat "2006-01-02T15:04:05.999Z" \
-fieldMsg "message" \
-beginRegex "Request received" \
-endRegex "Response"

we should get as output HTML similar to this:

Which allows us to experience the timeline of the requests which take longer time or affect other requests coming in in parallel threads.