I need to report hosts that are configured to receive app.log details and also report the ones that are missing. For this, I use the query "index=application sourcetype="application:server:log" | stats values(host) as hostnames by customer_name". This retrieves the hostnames for each customer_name from the sourcetype.   I get a result as: customer_name host customer1 server1 customer2 server2 server3   Then, I join the result by customer_name field from the second part of the query "[| inputlookup server_info.csv | rename customer as customer_name | stats values(host) as hostnames_lookup by customer_name] which retrieves the hostnames for each customer_name from the server_info.csv lookup table."   Here I get result as: customer_name host customer_name host customer1 server1 server100 customer2 server2 server3 server101 Later, I expand both the multivalue fields and perform evaluation on both the fields to retrieve result as configured or not configured. The evaluation looks like this | mvexpand hostnames | mvexpand hostnames_lookup | eval not_configured = if(hostnames == hostnames_lookup, hostnames, null()) | eval configured = if(hostnames != hostnames_lookup, hostnames, null()) | fields customer_name, hostnames, hostnames_lookup, configured, not_configured   My final query looks like this: (index=application sourcetype="application:server:log) | stats values(host) as hostnames by customer_name | join customer_name [| inputlookup server_info.csv | rename customer as customer_name | stats values(host) as hostnames_lookup by customer_name] | mvexpand hostnames | mvexpand hostnames_lookup | eval not_configured = if(hostnames == hostnames_lookup, hostnames, null()) | eval configured = if(hostnames != hostnames_lookup, hostnames, null()) | fields customer_name, hostnames, hostnames_lookup, configured, not_configured However, in the result when the evaluation is completed the results are not as expected, the matching logic doesn't work and the resultant output is incorrect. There are no values evaluated in the not_configured column and the configured column only returns the values in hostnames. However, I'd expect the configured field to show results of all the servers configured to receive app.log and not configured to have hostnames that are present in lookup but are still not configured to receive logs.  Expected Output: customer_name hostnames hostnames_lookup configured not_configured customer1 server1 server1 server100 server1 server100 customer2 server2 server3 server2 server3 server101 server2 server3 server101   Current Output: customer_name hostnames hostnames_lookup configured not_configured customer1 server1 server1 server100 server1   customer2 server2 server3 server2 server3 server101 server2 server3     Essentially customer1 and customer2 should display server1 as configured and server100 not_configured and likewise for customer2 as mentioned in expected output table. Which will mean that server100 and 101 are part of the lookup but are not configured to receive app.log How can I evaluate this differently, so that the comparison works as expected. Is it possible to compare the values in this fashion? Is there anything wrong with the current comparison logic? Should I not use mvexpand on the extracted fields so that they are compared expectedly?         ... View more