LS, I use RRDtool to monitor some things on my home server. One of the items is the Apache webserver statistics. I used the following RRD
... DS:totxs:COUNTER:600:U:U DS:totkb:COUNTER:600:U:U ... RRA:AVERAGE:0.5:1:288 RRA:AVERAGE:0.5:6:336 RRA:AVERAGE:0.5:12:744 RRA:AVERAGE:0.5:288:730 RRA:MAX:0.5:1:288 RRA:MAX:0.5:12:744 RRA:MAX:0.5:288:730 The totxs DS is the counter of number of accesses logged by apache, if Apache is restarted, this counter returns to 0. The RRD manual says: "The COUNTER data source assumes that the counter never decreases, except when a counter overflows. The update function takes the overflow into account" I guessed that this intelligent wrapping would also be true for wraps like I described above. Unfortunately that didn't work for me. Have a look at the apache week graph at http://www.brijn.nu/server A hundred million hits is not something my server would survive :-).. As a result the significant part of the graph is scaled out of sight. What is the correct way to make sure this doesn't happen again?? Bas -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
