What I have done so far:
Clean deb 6 64bit install: apt-get install git apt-get install autoconf apt-get install automake apt-get install autotools-dev apt-get install libevent-dev git clone https://github.com/sflow/memcached.git ./autogen.sh ./configure --enable-sflow make make check make install # memcached -u nobody -o sflow=on Illegal suboption "sflow=on" :-/ Am I doing something (very) wrong? Op dinsdag 28 september 2010 21:30:04 UTC+2 schreef neilmckee het volgende: > > The following git fork includes these sFlow changes: > > http://github.com/sflow/memcached > > To run with sFlow enabled: > > ./autogen.sh > ./configure --enable-sflow > make > ./memcached -u nobody -o sflow=on > > Neil > > > On Sep 27, 9:59 am, neilmckee <[email protected]> wrote: > > I posted this patch as an enhancement to the tracking system: > http://code.google.com/p/memcached/issues/detail?id=157 > > > > My original post wasn't very clear about the problem space being > > addressed: it is targeted at the challenge of identifying "hot keys" > > in an operational cluster. For background, see: > http://blog.sflow.com/2010/09/memcached.html > > > > Neil > > > > On Sep 23, 5:19 pm, neilmckee <[email protected]> wrote: > > > > > 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.
