All, Yesterday we made the change to /etc/libmap.conf to globally map libpthread to libthr. libmap.conf now has the following libpthread.so.2 libthr.so.2 . So far we have not had the spawning issue after 18 hours. Before making the change our system was slowing down and would have multiple spawns within 10 to 20 minutes. We will continue to watch our system and report back. We found on the web that others were having the same issue after they upgraded from FreeBSD 6.2 to FreeBSD 6.3.
Based on benchmarks we found on the web libthr.so is significantly faster than libpthread.so. Thanks Phillip Lynn Phillip Lynn wrote: > All, > > Sorry forgot to tell everyone we are switching thread libraries. > > Phillip Lynn > > > > > Gary Gatten wrote: > >> Are you switching thread libraries or patching as the url mentioned? >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On Behalf Of >> Phillip Lynn >> Sent: Wednesday, May 27, 2009 1:24 PM >> To: [email protected] >> Subject: Re: [Ntop] ntop problem >> >> All, >> >> After some digging we found others that had a similar issue after they >> upgraded to FreeBSD 6.3. We are testing a solution from the following >> web site: " >> http://unix.derkeiler.com/Mailing-Lists/FreeBSD/stable/2008-02/msg00442. >> html >> ". Will let you know if this corrects our problem. Thanks to everyone >> for all the quick responses. >> >> Thank You >> Phillip Lynn >> >> >> >> Luca Deri wrote: >> >> >>> Phillip >>> I have heard from other users that ntop on FreeBSD is not running >>> nicely. Unfortunately I have no BSD system here so I cannot debug >>> >>> >> this. >> >> >>> Can you please see if you can debug this problem yourself (at least >>> partially) so I can try to image what's wrong? >>> >>> Thanks Luca >>> >>> On May 27, 2009, at 2:55 PM, Phillip Lynn wrote: >>> >>> >>> >>>> Hi, >>>> >>>> Yesterday we upgraded a server to run ntop-3.3.10. After letting >>>> >>>> >> the >> >> >>>> system run over night I found that ntop had multiple instances >>>> >>>> >> running. >> >> >>>> The systems performance was degraded severely with a load average of >>>> 18.89. Has anyone else seen this type of an issue and if so were you >>>> able to correct the problem? Why is ntop spawning the extra >>>> >>>> >> processes? >> >> >>>> We are running Freebsd 6.3 release with patches. >>>> >>>> >>>> Below are lines cut from a top command. >>>> >>>> ntop problem >>>> >>>> |-+= 83294 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> >>>> >> 127.0.0.1:3000 >> >> >>>> | |--- 00419 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 01824 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 06308 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 22994 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 28821 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 32621 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 36981 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 43051 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 45426 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 50496 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 58489 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 71660 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 86425 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 93937 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 96620 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | |--- 97587 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> | \--- 97589 nobody /usr/local/bin/ntop -ivr1 -ndLM -W 0 -w >>>> 127.0.0.1:3000 >>>> >>>> last pid: 10403; load averages: 20.10, 19.46, >>>> 18.89 up 12+21:00:30 07:19:39 >>>> 78 processes: 21 running, 57 sleeping >>>> CPU states: 11.3% user, 0.0% nice, 87.5% system, 1.2% interrupt, >>>> >>>> >> 0.0% >> >> >>>> idle >>>> Mem: 252M Active, 40M Inact, 101M Wired, 16M Cache, 58M Buf, 65M Free >>>> Swap: 2048M Total, 170M Used, 1878M Free, 8% Inuse >>>> >>>> PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND >>>> 86425 nobody 1 127 0 74100K 62532K RUN 16:53 4.20% ntop >>>> 28821 nobody 1 126 0 74220K 43680K RUN 59:37 4.15% ntop >>>> 32621 nobody 1 126 0 74220K 43724K RUN 55:02 4.10% ntop >>>> 1824 nobody 1 127 0 74100K 64672K RUN 6:31 4.10% ntop >>>> 36981 nobody 1 126 0 74220K 44020K RUN 50:40 4.05% ntop >>>> 22994 nobody 1 126 0 74220K 43280K RUN 68:32 4.00% ntop >>>> 43051 nobody 1 125 0 74148K 55048K RUN 45:16 4.00% ntop >>>> 45426 nobody 1 127 0 74148K 64908K RUN 43:19 4.00% ntop >>>> 58489 nobody 1 125 0 74100K 53336K RUN 34:15 4.00% ntop >>>> 96620 nobody 1 126 0 74100K 62704K RUN 10:12 4.00% ntop >>>> 71660 nobody 1 126 0 74100K 59364K RUN 25:54 3.96% ntop >>>> 97589 nobody 1 126 0 74100K 63708K RUN 9:25 3.96% ntop >>>> 419 nobody 1 126 0 74100K 63536K RUN 7:26 3.96% ntop >>>> 50496 nobody 1 126 0 74100K 61288K RUN 39:38 3.86% ntop >>>> 93937 nobody 1 125 0 68336K 37740K RUN 161:01 3.81% ntop >>>> 6308 nobody 1 124 0 68336K 38088K RUN 106:44 3.81% ntop >>>> 97587 nobody 1 125 0 74100K 63708K RUN 9:26 3.76% ntop >>>> >>>> >>>> >>>> Thanks >>>> Phillip Lynn >>>> _______________________________________________ >>>> Ntop mailing list >>>> [email protected] >>>> http://listgateway.unipi.it/mailman/listinfo/ntop >>>> >>>> >>> _______________________________________________ >>> Ntop mailing list >>> [email protected] >>> http://listgateway.unipi.it/mailman/listinfo/ntop >>> >>> >>> >>> >> _______________________________________________ >> Ntop mailing list >> [email protected] >> http://listgateway.unipi.it/mailman/listinfo/ntop >> >> >> >> >> >> <font size="1"> >> <div style='border:none;border-bottom:double windowtext 2.25pt;padding:0in >> 0in 1.0pt 0in'> >> </div> >> "This email is intended to be reviewed by only the intended recipient >> and may contain information that is privileged and/or confidential. >> If you are not the intended recipient, you are hereby notified that >> any review, use, dissemination, disclosure or copying of this email >> and its attachments, if any, is strictly prohibited. If you have >> received this email in error, please immediately notify the sender by >> return email and delete this email from your system." >> </font> >> >> _______________________________________________ >> Ntop mailing list >> [email protected] >> http://listgateway.unipi.it/mailman/listinfo/ntop >> >> >> > > _______________________________________________ > Ntop mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop > > > _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
