I have come across a situation where I have to compare a set of values for a field with one value for another field (Both represent time), and display Yes/No as values for a new field.
Search one should give me a field "LatestTime" with only one value and it should be compared with other field "GenTime" in other search and create a new field "Checked" with possible values "Yes/No" if the "LatestTime" is less than "GenTime" the value for "Checked" is "Yes" else "No".
2014-04-21 06:39:38 Message="Error Server connection failed on 8346 port.
2014-04-21 06:41:59 Port opened, connection successful
2014-04-21 07:22:34 Message="Error Server connection failed on 8346 port.
2014-04-21 07:25:32 Port opened, connection successful.
I have two types of events, I have rexed and extracted the fields, ErrorMessage & SuccessMessage. So now i have to find the latest time where "Port opened, connection successful" and check with the all the Errormessages.
If latest success message is after error message, action taken is "Yes".
Table Time, ErrorMessage action_taken
Okay... something like this?
index=foo sourcetype=bar (Error_Message=* OR Success_Message=*) | eval message_type = if(isnotnull(Error_Message), "error", "success") | eval dummy = "dummy" | chart latest(_time) over dummy by message_type | eval checked = if(success > error, "Yes", "No") | fields checked