[rrd-users] Can't load '.....RRDs.so' for module RRDs:
Hi! All: May I seek some help from some of you who have been there and done that? I compiled and installed RRDTool 1.0.33 on Linux (2.2.5-15) without any problem until I try to use the shared RRDs. The following is what I got, but I am sure the file (RRDs.so) is there because I use make site-perl-install and tried to copy the file manually. Did I miss something? I have searched the web but didn't find hints to solve this problem. Any help is appreciated. Yours, Chang-Ping Hsiao Can't load '/usr/local/ActivePerl-5.6/lib/site_perl/5.6.1/i686-linux-thread-multi/auto/ RRDs/RRDs.so' for module RRDs: libgcc_s.so.1: cannot open shared object file: No such file or directory at /usr/local/ActivePerl-5.6/lib/5.6.1/i686-linux-thread-multi/DynaLoader.pm line 206. -r-xr-xr-x 1 root root 789906 Sep 20 17:02 /usr/local/ActivePerl-5.6/lib/site_perl/5.6.1/i686-linux-thread-multi/auto/R RDs/RRDs.so* __ NetZero Platinum Sign Up Today - Only $9.95 per month! http://www.netzero.net -- Unsubscribe mailto:[EMAIL PROTECTED] Helpmailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdminhttp://www.ee.ethz.ch/~slist/lsg2.cgi
[rrd-users] Help needed on rrdtool create and rrdtool update
Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Hi! Dear all: I am debugging a little program I am writing for data not showing in the RRDs after update. Could anyone help? I can't seem to find where the problem is. Did I make some mistakes in rrdtool create, rrdtool update, or rrdtool fetch? Thanks in advance. /usr/local/rrdtool-1.0.28/bin/rrdtool create Flipper_Drops/apserv5.lax.netzero.net-nzApp1.rrd \ --start 9 \ --step 3600 \ DS:Flipper_Drops:GAUGE:3600:0:U \ RRA:AVERAGE:0.5:1:3600 /usr/local/rrdtool-1.0.28/bin/rrdtool update Flipper_Drops/apserv5.lax.netzero.net-nzApp1.rrd \ 994176000:3 994183200:1 994190400:1 994194000:4 994197600:4 994201200:5 994204800:4 994212000:8 \ 994215600:1 994219200:1 994255200:1 994258800:2 994262400:4 994266000:2 994269600:3 994273200:2 \ 994276800:2 994284000:4 994287600:3 994291200:6 994294800:1 994298400:1 994302000:1 994309200:1 \ 994341600:2 994352400:4 994356000:2 994359600:1 994363200:5 994374000:3 994377600:3 /usr/local/rrdtool-1.0.28/bin/rrdtool fetch Flipper_Drops/apserv5.lax.netzero.net-nzApp1.rrd AVERAGE --start -3d --end now Flipper_Drops 994118400: NaN 994122000: NaN 994125600: NaN 994129200: NaN 994132800: NaN 994136400: NaN 99414: NaN 994143600: NaN 994147200: NaN 994150800: NaN 994154400: NaN 994158000: NaN 994161600: NaN 994165200: NaN 994168800: NaN 994172400: NaN missing- 994176000: NaN 994179600: NaN missing- 994183200: NaN 994186800: NaN missing- 994190400: NaN 994194000: 4.00e+00 994197600: 4.00e+00 994201200: 5.00e+00 994204800: 4.00e+00 994208400: NaN missing- 994212000: NaN 994215600: 1.00e+00 994219200: 1.00e+00 994222800: NaN 994226400: NaN 99423: NaN 994233600: NaN 994237200: NaN 994240800: NaN 994244400: NaN 994248000: NaN 994251600: NaN missing- 994255200: NaN 994258800: 2.00e+00 994262400: 4.00e+00 994266000: 2.00e+00 994269600: 3.00e+00 994273200: 2.00e+00 994276800: 2.00e+00 994280400: NaN missing- 994284000: NaN 994287600: 3.00e+00 994291200: 6.00e+00 994294800: 1.00e+00 994298400: 1.00e+00 994302000: 1.00e+00 994305600: NaN missing- 994309200: NaN 994312800: NaN 994316400: NaN 99432: NaN 994323600: NaN 994327200: NaN 994330800: NaN 994334400: NaN 994338000: NaN missing- 994341600: NaN 994345200: NaN 994348800: NaN missing- 994352400: NaN 994356000: 2.00e+00 994359600: 1.00e+00 994363200: 5.00e+00 994366800: NaN 994370400: NaN missing- 994374000: NaN 994377600: 3.00e+00 994381200: NaN Chang-Ping Hsiao -- Attached file removed by Listar and put at URL below -- -- Type: application/x-pkcs7-signature -- Size: 2k (2421 bytes) -- URL : http://www.ee.ethz.ch/~slist/pantomime/27-smime.p7s -- Unsubscribe mailto:[EMAIL PROTECTED] Helpmailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdminhttp://www.ee.ethz.ch/~slist/lsg2.cgi
[rrd-users] Re: Help needed on rrdtool create and rrdtool update
Exactly! The data come in at an unknown timing. That is why I had them updated at random time and different interval. I read about the comparison between heartbeat and step, and didn't seem to find a way around it. In the document written by Don Baarda, it says, .If the interval between samples is longer than heartbeat, the entire interval is considered unknown... Meanwhile, I am not clear about whether this includes the end points of the interval if they are primary data points in an RRD. Serge was right on the data I tried to updated, 7200 is greater than 3600, but I would think RRDTool can be smart enough to determine 99417900 is unknown while 994176000 is 3 and 994183200 is 1, instead of thinking everything in the interval including the end points are unknown. Due to the nature of the data, if RRDTool cannot help, maybe I will need to artificially put a 0 for every missing heartbeat. This isn't hard but is definitely making my job more trivial. Thanks, folks! Chang-Ping 994176000:3 994183200:1 994190400:1 994194000:4 994197600:4 994201200:5 \ 994204800:4 994212000:8 994215600:1 994219200:1 994255200:1 994258800:2 \ 994262400:4 994266000:2 994269600:3 994273200:2 \ missing- 994176000: NaN 994179600: NaN missing- 994183200: NaN 994186800: NaN missing- 994190400: NaN 994194000: 4.00e+00 994197600: 4.00e+00 994201200: 5.00e+00 994204800: 4.00e+00 994208400: NaN missing- 994212000: NaN 994215600: 1.00e+00 994219200: 1.00e+00 994222800: NaN 994226400: NaN 99423: NaN 994233600: NaN 994237200: NaN 994240800: NaN 994244400: NaN 994248000: NaN 994251600: NaN missing- 994255200: NaN 994258800: 2.00e+00 Hmm, what I do see is that you have a heartbeat of 3600 secs. Your updates (at least the first two ones, didn't check the other ones) on the other hand are made with a 7200 sec interval. This is well over the heartbeat threshold, so rrdtool will take the value for a NaN. -Original Message- From: Chris Snell [mailto:[EMAIL PROTECTED] Sent: Thursday, July 05, 2001 6:48 PM To: Chang-Ping Hsiao; Rrd-User (E-mail) Subject: Re: [rrd-users] Help needed on rrdtool create and rrdtool update I took a quick glance at your rrdupdate and it looks like you are occasionally updating at an interval different from your --step. the RRDs after update. Could anyone help? I can't seem to find where the problem is. Did I make some mistakes in rrdtool create, rrdtool update, or rrdtool fetch? __ NetZero Platinum No Banner Ads and Unlimited Access Sign Up Today - Only $9.95 per month! http://www.netzero.net -- Unsubscribe mailto:[EMAIL PROTECTED] Helpmailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdminhttp://www.ee.ethz.ch/~slist/lsg2.cgi
[rrd-users] Re: Help needed on rrdtool create and rrdtool upd ate
Meanwhile, I am not clear about whether this includes the end points of the interval if they are primary data points in an RRD. There are no primary data points in an RRD, only intervals. Well, according to the document of RRD CREATE, there really is something called primary data point as in the paragraph When data is entered into an RRD, it is first fit into time slots of the length defined with the -s option becoming a primary data point. although I still don't understand what it is. :-) The interval labeled as 99417600 (if heartbeat is 3600) is actually the time period from 99417600-99421199. Any data that comes in during that time is considered as representing the time from the last sample to the time of the sample. If there is an interval of heartbeat seconds that does not contain at least two samples, that interval is treated as NaN (unknown). Why should there be two data in an interval? If The samples only present once an hour, there will be only one datum in 3600 seconds. Serge was right on the data I tried to updated, 7200 is greater than 3600, but I would think RRDTool can be smart enough to determine 99417900 is unknown while 994176000 is 3 and 994183200 is 1, instead of thinking everything in the interval including the end points are unknown. Nope. RRDTool is smarter than that, and it thinks that it doesn't have data for an interval if it doesn't have more than one sample in the interval. This is not smart to me. Why can it not just take what it's fed with? Why not use a small step and a large heartbeat? The only thing the heartbeat controls is how much time can elapse between samples without declaring the entire period unknown. Literally, heartbeat should represent your MAXIMUM acceptable time between samples, possibly plus some margin. The thing is, the MAXIMUM is unknown!! Even if I make the heartbeat hugely big, the timestamps that have no data would come up as something inaccurate with the smaller step. Chang-Ping __ NetZero Platinum No Banner Ads and Unlimited Access Sign Up Today - Only $9.95 per month! http://www.netzero.net -- Unsubscribe mailto:[EMAIL PROTECTED] Helpmailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdminhttp://www.ee.ethz.ch/~slist/lsg2.cgi
[rrd-users] Re: Question on rrdtool graph
Alex:
I am having a question on the rrdtool graph output for I don't know
how
to select an RRA for the output. I hope I can get some help from here,
and
it is much appreciated.
You don't select the correct RRA, let rrdtool do this for you.
I guess so, according to the man page (HTML page).
I am having different RRAs for an RRD. All RRAs are using CF
AVERAGE as
you can see below. In the document for rrdtool graph, in the DEF:
section,
it says ... The DEF call automatically chooses an RRA which contains CF
consolidated data in a resolution appropriate for the size of the graph
to
be drawn. Since I don't have enough data yet, I would have no way of
telling where or not I can retrieve data in the range at my will.
1st of all, an RRA must have the same CF properties. In your case
there's not much to choose from as you only have AVERAGE RRAs.
Normally, you can fetch maximum values from the MAX RRA and average
values from the AVERAGE RRA. Which CF to use is selected by DEF.
Well, :-), this all-AVERAGE design is to the request from above,
not up to me. Since they don't need MAX or MIN, there are only AVERAGE's.
Then, the closest match is found on the time frame you selected.
sub create_rrd {# create an RRD for a production box
my $start = --start $time_s;
my $step = --step 3600;
Step time == 3600 -- one hour per PDP (primary data point)
Intended.
my $rra1 = RRA:AVERAGE:0.5:1:8784; # daily
One PDP per CDP (consolidated data point, row) in this RRA
and 8784 rows. This makes a total of 366 days, or: a year.
Exactly. It's designed to be 366 days to cover leap years.
my $rra2 = RRA:AVERAGE:0.5:3:2928; # weekly
Three PDPs per CDP, totalling 2928 rows. This is thus 2928
rows of 3 hours per row = the same amount of time as the
previous RRA. (I don't think this one gets used often...)
Good point. The request came with the ability to retrieve data for
graphing for daily, weekly, monthly, quarterly, and yearly (or annually)
pretty much like the graphs for stocks; without the data being saved in the
RRD and RRA, it would require the graphs to be generated predefined and
stored somewhere. This doesn't fit the goal of saving disk space while
computation time is not a concern.
my $rra3 = RRA:AVERAGE:0.5:6:1464; # monthly
Ditto
my $rra4 = RRA:AVERAGE:0.5:12:732; # quarterly
Ditto
my $rra5 = RRA:AVERAGE:0.5:24:366; # yearly
Ditto
The purpose of having multiple RRAs is that you can store
data for a longer time, with a lower resolution. There's
nothing agains having such a long daily RRA but it makes
no sense to have the yearly RRA with the same amount of
data. It may speed up graphing a bit but I don't think
this is noticeable.
For this point of view, I need to ask more if I may. So if I want
to have lower resolution for a year's worth of data, without saving them
into RRA, how may I proceed and process? I would love to learn how to save
space and time for having the same result. :-)
However, you can run rrdtool fetch with different resolution
settings and see what consolidation does with your data.
Do, for instance:
rrdtool fetch --resolution 3600 --start '00:00' --end start+6h
and
rrdtool fetch --resolution 10800 --start '00:00' --end start+6h
on the same RRD so see the differences.
Thank you for this idea. I never tried. For some reason, the RRDs
I have don't pop up information on these queries. Maybe something is not
right on them. I'll check.
Chang-Ping Hsiao
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[rrd-users] Question on rrdtool graph
Hi!
I am having a question on the rrdtool graph output for I don't know how
to select an RRA for the output. I hope I can get some help from here, and
it is much appreciated.
I am having different RRAs for an RRD. All RRAs are using CF AVERAGE as
you can see below. In the document for rrdtool graph, in the DEF: section,
it says ... The DEF call automatically chooses an RRA which contains CF
consolidated data in a resolution appropriate for the size of the graph to
be drawn. Since I don't have enough data yet, I would have no way of
telling where or not I can retrieve data in the range at my will.
Could anybody give me some hints? Thanks. :-)
sub create_rrd {# create an RRD for a production box
my $start = --start $time_s;
my $step = --step 3600;
# heartbeat has to be big enough to allow meaningful data
# i.e. step of 3600 needs approximately 7200 as the heartbreak
my $ds1 = DS:CPUidle:GAUGE:7200:0:100;
my $ds2 = DS:FreeMemory:GAUGE:7200:0:100;
my $ds3 = DS:Capacity:GAUGE:7200:0:100;
my $ds4 = DS:FreeSwapMemory:GAUGE:7200:0:100;
my $rra1 = RRA:AVERAGE:0.5:1:8784; # daily
my $rra2 = RRA:AVERAGE:0.5:3:2928; # weekly
my $rra3 = RRA:AVERAGE:0.5:6:1464; # monthly
my $rra4 = RRA:AVERAGE:0.5:12:732; # quarterly
my $rra5 = RRA:AVERAGE:0.5:24:366; # yearly
system $rrdtool create $rrd $start $step $ds1 $ds2 $ds3 $ds4 $rra1
$rra2 $rra3 $rra4 $rra5;
}
sub graph_rrd { # create an image file
# my $rrd = shift;
my $start= --start $time_s;
my $end = --end $time_e;
my $filetype = -a PNG;
my $title= --title '$DATE $hostname';
my $upper= -u 100 -r;
my $def1 = DEF:CPUidle=$rrd:CPUidle:AVERAGE;
my $def2 = DEF:FreeMemory=$rrd:FreeMemory:AVERAGE;
my $def3 = DEF:Capacity=$rrd:Capacity:AVERAGE;
my $def4 = DEF:FreeSwapMemory=$rrd:FreeSwapMemory:AVERAGE;
my $data1= LINE2:CPUidle#FF:'CPU Idle (%)';
my $data2= LINE2:FreeMemory#00FF00:'Free Memory (%)';
my $data3= LINE2:Capacity#FF:'Capacity of /add_app (%)';
my $data4= LINE2:FreeSwapMemory#FF00FF:'Free Swap Memory (%)';
printf %25s.png , $hostname;
system $rrdtool graph $graph_dir/$DATE3/$hostname.png $start $end
$filetype \
$title $upper $def1 $def2 $def3 $def4 $data1 $data2 $data3
$data4;
}
Chang-Ping Hsiao
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