As of version 1.9, Apache Drill can natively ingest and query web server logs. To configure Drill to read server logs, you must modify the extensions section in the dfs configuration:
"httpd": {
"type": "httpd",
"logFormat": "%h %t \"%r\" %>s %b \"%{Referer}i\" \"%{user-agent}i\"",
"timestampFormat": null
}