Thank you for your response! I was planning to use PRTG Monitor (because is reads all other snmp traffic from our network), but unfortunately it isn't capable of reading countersample packets :-/
Unless I can configure hsflowd to send flow sample types instead of countersample Tnx again for your response! Benjamin Op vrijdag 24 september 2010 02:19:03 UTC+2 schreef neilmckee het volgende: > > Hello All, > > Here is a patch against the central repo that adds sFlow monitoring. > Please comment! > http://www.inmon.com/technology/sfmc_20100923.zip > > For background on this, please read: > http://blog.sflow.com/2010/08/sflow-host-structures.html > > If you compile with this patch, then you can run with "memcached -u > nobody -o sflow=on", and it will pick up configuration from /etc/ > hsflowd.auto, such as: > > sampling=400 > polling=20 > agentIP=10.0.0.112 > collector=10.0.0.111 6343 > > "agentIP" should be the IP of the server, and "collector" should be > the IP of an sflow collector such as "sflowtool": > http://www.inmon.com/bin/sflowtool-3.17.tar.gz > > (This config file is generated automatically if you install hsflowd, > the host sFlow daemon from host-sflow.sourceforge.net which > contributes an sFlow feed of server performance stats) > > Neil > > > NOTES: > > (1). Provided the sampling-rate is set appropriately, the overhead > should be roughly equivalent to adding one extra stats counter. The > critical path is just a decrement-and-test on a per-thread counter (no > locking). > > (2). The changes are all within "#ifdef SFLOW" except for (3) below. > > (3). I changed memcached.h:struct conn->request_addr to be of type > struct sockaddr_storage so it would work for IPv6 too. > > > Op vrijdag 24 september 2010 02:19:03 UTC+2 schreef neilmckee het volgende: > > Hello All, > > Here is a patch against the central repo that adds sFlow monitoring. > Please comment! > http://www.inmon.com/technology/sfmc_20100923.zip > > For background on this, please read: > http://blog.sflow.com/2010/08/sflow-host-structures.html > > If you compile with this patch, then you can run with "memcached -u > nobody -o sflow=on", and it will pick up configuration from /etc/ > hsflowd.auto, such as: > > sampling=400 > polling=20 > agentIP=10.0.0.112 > collector=10.0.0.111 6343 > > "agentIP" should be the IP of the server, and "collector" should be > the IP of an sflow collector such as "sflowtool": > http://www.inmon.com/bin/sflowtool-3.17.tar.gz > > (This config file is generated automatically if you install hsflowd, > the host sFlow daemon from host-sflow.sourceforge.net which > contributes an sFlow feed of server performance stats) > > Neil > > > NOTES: > > (1). Provided the sampling-rate is set appropriately, the overhead > should be roughly equivalent to adding one extra stats counter. The > critical path is just a decrement-and-test on a per-thread counter (no > locking). > > (2). The changes are all within "#ifdef SFLOW" except for (3) below. > > (3). I changed memcached.h:struct conn->request_addr to be of type > struct sockaddr_storage so it would work for IPv6 too. > > >
