Hi everyone, I have setup pmacct with your help, and it's been running like a champ. I have also installed darkstat for comparison. I am seeing a big error (around 30%) between the 2 tools! Here's what I have done 1- pmacct was running for a week, I dumped the captured data into a file using this query: SELECT sum(bytes) / (1024 * 1024), ip_dst into outfile "/tmp/download_start_with_darkstat" FROM acct_v2 where month( stamp_inserted) = 6 and ip_dst !='0.0.0.0' GROUP BY ip_dst ORDER BY sum(bytes) DESC; 2- Started darkstat 3- Waited 2.25 days for accurate measurement 4- dumped the data again from pmacct using this query SELECT sum(bytes) / (1024 * 1024), ip_dst into outfile "/tmp/download_stop_with_darkstat" FROM acct_v2 where month( stamp_inserted) = 6 and ip_dst !='0.0.0.0' GROUP BY ip_dst ORDER BY sum(bytes) DESC; 5- dumped darkstat data using a browser.
Here's what I am seeing: IP START END DELTA DARKSTAT(bytes) 81.10.100.42 7607.7053 9477.4200 1869.7147 1,397,584,555 81.10.100.73 3603.2834 4716.6248 1113.3414 810,169,491 81.10.100.37 3540.3343 5698.6758 2158.3415 1,573,900,631 81.10.100.199 3444.3568 4358.3895 914.0327 575,124,842 81.10.100.75 2951.8349 3697.5900 745.7551 556,560,149 81.10.100.30 2770.9552 3807.6038 1036.6486 715,830,077 81.10.100.46 2698.5764 3987.1379 1288.5615 856,582,079 81.10.100.44 1982.1858 2381.7297 399.5439 296,992,631 81.10.100.71 1880.2033 2522.7183 642.5150 548,180,038 81.10.100.201 1300.2739 2040.0713 739.7974 411,031,858 Those are the top 10 BW users. All measurements are in MB (from SQL query), darkstat data is in bytes. As you can see, the first line it's 1.9GB vs 1.4GB and so on ... Any ideas how to track such errors ?
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