Memory Usage not view 16GiB Of ram

[vampire]

Good Morning,

i have many server but the max ram installed is 4GiB and cacti work perfectly but now i have an server with 16GiB of ram and cacti not count the total free RAM it view 0 :S

I have used ucd and linux memory usage template

There is any solution for this?

[vampire]

The Os is Debian eth 4.0

The version of cacti is the last avaible from stable download from site

The information of the graphic are:

Code: Select all

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=1259968536 \
--end=1260054936 \
--title="graph1 - Memory Usage" \
--rigid \
--base=1000 \
--height=120 \
--width=600 \
--alt-autoscale-max \
--lower-limit=0 \
COMMENT:"From 2009/12/04 23\:15\:36 To 2009/12/05 23\:15\:36\c" \
COMMENT:"  \n" \
--vertical-label="bytes" \
--slope-mode \
--font TITLE:12: \
--font AXIS:8: \
--font LEGEND:10: \
--font UNIT:8: \
DEF:a="/usr/share/cacti/site/rra/graph1_mem_free_339.rrd":mem_free:AVERAGE \
DEF:b="/usr/share/cacti/site/rra/graph1_mem_buffers_337.rrd":mem_buffers:AVERAGE \
DEF:c="/usr/share/cacti/site/rra/graph1_mem_cache_338.rrd":mem_cache:AVERAGE \
CDEF:cdefa=a,1024,* \
CDEF:cdefe=b,1024,* \
CDEF:cdefi=c,1024,* \
AREA:cdefa#8F005CFF:"Memory Free"  \
GPRINT:cdefa:LAST:"   Current\:%8.2lf%s"  \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf%s"  \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf%s\n"  \
AREA:cdefe#FF5700FF:"Memory Buffers":STACK \
GPRINT:cdefe:LAST:"Current\:%8.2lf%s"  \
GPRINT:cdefe:AVERAGE:"Average\:%8.2lf%s"  \
GPRINT:cdefe:MAX:"Maximum\:%8.2lf%s\n"  \
AREA:cdefi#FFC73BFF:"Cache Memory":STACK \
GPRINT:cdefi:LAST:"  Current\:%8.2lf%s"  \
GPRINT:cdefi:AVERAGE:"Average\:%8.2lf%s"  \
GPRINT:cdefi:MAX:"Maximum\:%8.2lf%s\n"

[gandalf]

Please see 2nd link of my sig. If this does not solve the problem, it should at least help to phrase the next question
R.

[vampire]

Hi,

thaks for the answer but i not haved understend.

What i must see? I not have understood. You can give me the link?

Thanks

[gandalf]

Log in, see my last post, select 2nd link of the signature and you're there
R.

[vampire]

This http://forums.cacti.net/viewtopic.php?t=35380 ?

[vampire]

i have rebuild the cache of poller but not change...it give me only the mem used but the mem free not view the 16gib of ram...any solution?

[gandalf]

This http://forums.cacti.net/viewtopic.php?t=35380 ?

No: http://docs.cacti.net/manual:087:4_help ... #debugging
R.

[vampire]

Hi,

this is the result of debug

Code: Select all

12/08/2009 06:12:11 PM - CMDPHP: Poller[0] Host[31] DS[346] SNMP: v3: tcp:xxx.xxx.xxx.xx, dsname: mem_free, oid: .1.3.6.1.4.1.2021.4.6.0, output: 13953568
12/08/2009 06:12:11 PM - CMDPHP: Poller[0] Host[31] DS[345] SNMP: v3: tcp:xxx.xxx.xxx.xx, dsname: mem_cache, oid: .1.3.6.1.4.1.2021.4.15.0, output: 2088244
12/08/2009 06:12:11 PM - CMDPHP: Poller[0] Host[31] DS[344] SNMP: v3: tcp:xxx.xxx.xxx.xx, dsname: mem_buffers, oid: .1.3.6.1.4.1.2021.4.14.0, output: 227628

Output of free mem is output: 13953568 and it seems ok but in the graph i view 0 into mem_free value i view only mem_cache and mem_buffers

How i can resolve this?

Thanks

[gandalf]

This is mentioned in the docs as well: rrdtool tune is your friend to adjust max
R.

[vampire]

I have used this command

rrdtool tune host_mem_free_346.rrd --maximum mem_free:10.0000000000e+02

RRD Info leave this

ds[mem_free].min = 0.0000000000e+00
ds[mem_free].max = 1.0000000000e+02

But i view alway NaN where i wrong?

Thanks for the patience

[vampire]

Now i view this:

ds[mem_free].type = "GAUGE"
ds[mem_free].minimal_heartbeat = 600
ds[mem_free].min = 0.0000000000e+00
ds[mem_free].max = 9.0000000000e+02
ds[mem_free].last_ds = "UNKN"
ds[mem_free].value = NaN
ds[mem_free].unknown_sec = 23

but the result is the same :s

Thanks for the support

[computer_guru]

Sounds like maybe it is a limitation of a 32 bit integer?

[vampire]

How i can check this? The sistem where is the cacti is an debian 4 VPS OpenVZ..solution? thansk for the support

[gandalf]

Now i view this:

ds[mem_free].type = "GAUGE"
ds[mem_free].minimal_heartbeat = 600
ds[mem_free].min = 0.0000000000e+00
ds[mem_free].max = 9.0000000000e+02
ds[mem_free].last_ds = "UNKN"
ds[mem_free].value = NaN
ds[mem_free].unknown_sec = 23

but the result is the same :s

Thanks for the support

This adjusts the max to a value of 900. Are you sure, that your values won't exceed this number?
R.