On May 18, "[EMAIL PROTECTED]" wrote: Have a look at the -m option for flow-cat to disable mmap. That fixes this problem for me on freebsd...but it's possible it's a freebsd specific issues.
> I recently pointed two new xaddrs towards my already busy > flow collector and now my consolidated, compressed daily > flow files have exceeded 2GB. Because of this flow-cat > won't touch the files - it errors out with a memory > allocation error. > > > ls -al ftd-2004-05-17 > -rw-r--r-- 1 netflow users 2141001910 May 18 01:38 ftd-2004-05-17 > > flow-cat ftd-2004-05-17 | flow-stat > flow-cat: mmap(): Cannot allocate memory > flow-cat: ftio_init(): failed > flow-stat: ftiheader_read(): Warning, short read while loading header > top. > flow-stat: ftiheader_read(): failed > flow-stat: ftio_init(): failed > > > > I'm running linux 2.4.20 on x86 and have been reading about > adjusting the shared memory values in /proc/sys/kernel. > The three parms that seem to get the most attention on the > tuning related web sites are shmall, shmmax, and shmmni. > The defaults on my system are... > > bash-2.05b# cat shmall > 2097152 > bash-2.05b# cat shmmax > 33554432 > bash-2.05b# cat shmmni > 4096 > bash-2.05b# > > I experimented with increasing shmall and shmmax (doubled both > of them) but still encountered the above error. Do I need to > do anything special like recompile flow-tools after modifying > these parameters? Am I on the right track at all? The system > itself has 512MB of memory and 2GB of swap. I don't think > this is the result of a true resource constraint - more of a > system specific configuration issue as flow-cat would happily > work on files in the area of 1.8GB, but refuses do anything > with sizes of +2GB. > > Any suggestions? > > > _______________________________________________ > Flow-tools mailing list > [EMAIL PROTECTED] > http://mailman.splintered.net/mailman/listinfo/flow-tools _______________________________________________ Flow-tools mailing list [EMAIL PROTECTED] http://mailman.splintered.net/mailman/listinfo/flow-tools
