I think we are using the combined log format. In the sample entries below, empty fields are indicated by hyphens. The number of bytes sent to the client browser is indicated in the seventh field from the left. In the first sample, the value for bytes is 12. In the second sample, it is 8369.
10.107.88.13 - - [22/Jun/2016:03:43:24 -0500] "GET /" 200 12 "-" "-" - - - "-" "-" libweb-devel-cluster.example.com 80 SSL-off 2507 49683 -
68.180.229.190 - - [22/Jun/2016:04:22:49 -0500] "GET /tejanovoices/interview.php?cmasno=113 HTTP/1.1" 200 8369 "-" "Mozilla/5.0 (c
ompatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)" - - - "-" "library.example.com" library.example.com 80 SSL-off 4447
1 44226 +
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