Hi Thomas, What matters is really how many 'src_host, dst_host' aggregates are generated out of the traffic. Predicting for me is difficult but you can turn sql_dont_try_update to false (so that it doesn't complain about duplicates anymore for the sake of this test) and see whether during the sql_refresh_time time-span you are pushing more than 256K aggregates to the database. Verification is to run a query like the following against the database:
SELECT COUNT(*) AS aggregates, stamp_inserted FROM acct GROUP BY stamp_inserted; Cheers, Paolo On Sun, Sep 12, 2010 at 05:59:20PM +0000, Thomas Raabo - ZitCom A/S wrote: > r...@mgmt5 examples]# top > top - 19:31:01 up 4 days, 9:24, 5 users, load average: 0.12, 0.08, 0.07 > Tasks: 202 total, 1 running, 201 sleeping, 0 stopped, 0 zombie > Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st > Mem: 24675552k total, 3611064k used, 21064488k free, 312036k buffers > Swap: 3124632k total, 260k used, 3124372k free, 1490888k cached > > We are running about 400mbit of traffik average with netflow exporting 6000 > flow/sec > > What sql_cache_entries do you recommend? > > > Thomas > > > > -----Oprindelig meddelelse----- > Fra: pmacct-discussion-boun...@pmacct.net > [mailto:pmacct-discussion-boun...@pmacct.net] P? vegne af Paolo Lucente > Sendt: 12. september 2010 01:32 > Til: pmacct-discussion@pmacct.net > Emne: Re: [pmacct-discussion] duplicates... > > Hi Thomas, > > This very likely answers why you are not seeing all you expect in the > database. Reason you get duplicates is pmacct is trying to insert into the > database more than once per 600 seconds (as per your configuration) and > sql_dont_try_update is set to true. > > So quickest work-around is to set sql_dont_try_update to false; but i guess > it's good to spend some efforts to understand why pmacct is behaving like > that. The cause "safe action" gives a pointer and it's due to one of the two > following reasons: > > * There are too many 'src_host, dst_host' aggregates for the > configured sql_cache_entries value. This should be excluded > as only 500-600 entries are to be inserted while the config > would allow for sql_cache_entries entries (256K). But, it > could be it stops on the first of a series of INSERTs, so > there is more data to dump. Knowing your environment, you > can ultimately comment whether the 256K value is good or > not. > > * The system is short of memory (or the OS limits the amount > of memory the pmacct process(es) can allocate); so at some > stage pmacct asks for a new chunk of memory to insert a new > entry in the SQL cache and it's not able to get it; this > results in pmacct purging the cache content in an effort > to make room to new data. Please check whether this can be > the case. > > Let me know. > > Cheers, > Paolo > > > On Sat, Sep 11, 2010 at 05:49:17PM +0000, Thomas Raabo - ZitCom A/S wrote: > > Once every 10 min iam getting some errors > > > > DEBUG ( default/mysql ): purging process (CAUSE: safe action) ( > > default/mysql ) *** Purging cache - START *** DEBUG ( default/mysql ): > > 568 VALUES statements sent to the MySQL server. > > ERROR ( default/mysql ): Duplicate entry > > '0-unknown-0:0:0:0:0:0-0:0:0:0:0:0-0-0-0-188.176.68.71-194.182.12' for key > > 'PRIMARY' > > > > DEBUG ( default/mysql ): purging process (CAUSE: safe action) ( > > default/mysql ) *** Purging cache - START *** DEBUG ( default/mysql ): > > 569 VALUES statements sent to the MySQL server. > > ERROR ( default/mysql ): Duplicate entry > > '0-unknown-0:0:0:0:0:0-0:0:0:0:0:0-0-0-0-91.100.100.103-94.231.97' for key > > 'PRIMARY' > > > > DEBUG ( default/mysql ): purging process (CAUSE: safe action) ( > > default/mysql ) *** Purging cache - START *** DEBUG ( default/mysql ): > > 565 VALUES statements sent to the MySQL server. > > ERROR ( default/mysql ): Duplicate entry > > '0-unknown-0:0:0:0:0:0-0:0:0:0:0:0-0-0-0-94.231.102.73-95.166.47.' for key > > 'PRIMARY' > > > > My config > > > > ! nfacctd configuration example > > ! > > ! Did you know CONFIG-KEYS contains the detailed list of all > > configuration keys ! supported by 'nfacctd' and 'pmacctd' ? > > ! > > debug: true > > !daemonize: true > > > > aggregate: tag, src_host, dst_host > > plugin_pipe_size: 40960000 > > plugin_buffer_size: 40960 > > nfacctd_port: 9000 > > > > ! nfacctd_time_secs: true > > > > nfacctd_time_new: true > > > > plugins: mysql > > > > sql_db: pmacct > > sql_table: acct > > sql_table_version: 2 > > sql_passwd: ***** > > sql_user: root > > sql_refresh_time: 600 > > sql_multi_values: 100000 > > sql_dont_try_update: true > > sql_cache_entries: 256000 > > ! sql_optimize_clauses: true > > sql_history: 10m > > sql_history_roundoff: mh > > > > Thomas > > > _______________________________________________ > > pmacct-discussion mailing list > > http://www.pmacct.net/#mailinglists > > _______________________________________________ > pmacct-discussion mailing list > http://www.pmacct.net/#mailinglists _______________________________________________ pmacct-discussion mailing list http://www.pmacct.net/#mailinglists