Issues with NCV

3 messages in this thread

list Tom Moore · Thu, 19 Nov 2009 18:18:12 -0500 ·

I'm tearing my hair out trying to solve this one, hopefully someone can help.

I'm trying to set up a graph using NCV, which has worked great in the past, albeit only graphing one or two values.  I'm trying to send 4 values and it's truncating the last one, i.e. the RRD file only shows 3.

My output is simply this:

Bus 1 IO/Sec: 0
Bus 1 Q-IOs: 46
Bus 2 IO/Sec: 0
Bus 2 Q-IOs: 47

My hobbitserver.cfg has a line to catch everything:

NCV_powermt="*:GAUGE"

I run the client side script, and this is what I get from the rrdtool dump

<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
        <step> 300 </step> <!-- Seconds -->
        <lastupdate> 1258672448 </lastupdate> <!-- 2009-11-19 18:14:08 EST -->

        <ds>
                <name> Bus1IOSec </name>
                <type> GAUGE </type>
                <minimal_heartbeat> 600 </minimal_heartbeat>
                <min> NaN </min>
                <max> NaN </max>

                <!-- PDP Status -->
                <last_ds> 0 </last_ds>
                <value> 0.0000000000e+00 </value>
                <unknown_sec> 238 </unknown_sec>
        </ds>

        <ds>
                <name> Bus1QIOs </name>
                <type> GAUGE </type>
                <minimal_heartbeat> 600 </minimal_heartbeat>
                <min> NaN </min>
                <max> NaN </max>

                <!-- PDP Status -->
                <last_ds> 46 </last_ds>
                <value> 1.0800000000e+03 </value>
                <unknown_sec> 238 </unknown_sec>
        </ds>

        <ds>
                <name> Bus2IOSec </name>
                <type> GAUGE </type>
                <minimal_heartbeat> 600 </minimal_heartbeat>
                <min> NaN </min>
                <max> NaN </max>

                <!-- PDP Status -->
                <last_ds> 0 </last_ds>
                <value> 0.0000000000e+00 </value>
                <unknown_sec> 238 </unknown_sec>
        </ds>

<!-- Round Robin Archives -->   <rra>
-----snip------


I can rearrange the output from the client script to say:

Bus 2 Q-IOs: 47
Bus 1 IO/Sec: 0
Bus 1 Q-IOs: 46
Bus 2 IO/Sec: 0


Then the dump from RRD just has Bus2QIOs, Bus1IOSec, and Bus1QIOs

So it's always dropping the 4th value.

Is there some sort of limitation or bug in NCV that only captures 3 NCVs?


Thanks!

list Dan Vande More · Thu, 19 Nov 2009 16:22:22 -0700 ·

IIRC correctly, you need a newline at the end of the last one.

If that's not that case, then try swapping the last one and third one
around in an effort to troubleshoot - it may be that the 4th has some
misconfiguration or something.

▸ quoted from Tom Moore


On Thu, Nov 19, 2009 at 4:18 PM, Tom Moore <user-09591bca676f@xymon.invalid> wrote:

I'm tearing my hair out trying to solve this one, hopefully someone can help.

I'm trying to set up a graph using NCV, which has worked great in the past, albeit only graphing one or two values.  I'm trying to send 4 values and it's truncating the last one, i.e. the RRD file only shows 3.

My output is simply this:

Bus 1 IO/Sec: 0
Bus 1 Q-IOs: 46
Bus 2 IO/Sec: 0
Bus 2 Q-IOs: 47

My hobbitserver.cfg has a line to catch everything:

NCV_powermt="*:GAUGE"

I run the client side script, and this is what I get from the rrdtool dump

<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
       <step> 300 </step> <!-- Seconds -->
       <lastupdate> 1258672448 </lastupdate> <!-- 2009-11-19 18:14:08 EST -->

       <ds>
               <name> Bus1IOSec </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> 0 </last_ds>
               <value> 0.0000000000e+00 </value>
               <unknown_sec> 238 </unknown_sec>
       </ds>

       <ds>
               <name> Bus1QIOs </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> 46 </last_ds>
               <value> 1.0800000000e+03 </value>
               <unknown_sec> 238 </unknown_sec>
       </ds>

       <ds>
               <name> Bus2IOSec </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> 0 </last_ds>
               <value> 0.0000000000e+00 </value>
               <unknown_sec> 238 </unknown_sec>
       </ds>

<!-- Round Robin Archives -->   <rra>
-----snip------


I can rearrange the output from the client script to say:

Bus 2 Q-IOs: 47
Bus 1 IO/Sec: 0
Bus 1 Q-IOs: 46
Bus 2 IO/Sec: 0


Then the dump from RRD just has Bus2QIOs, Bus1IOSec, and Bus1QIOs

So it's always dropping the 4th value.

Is there some sort of limitation or bug in NCV that only captures 3 NCVs?


Thanks!

list Tom Moore · Fri, 20 Nov 2009 13:12:35 -0500 ·

I already had a newline at the end.  And I did the swapping as well.  What's strange is I threw a random line at the end

Blah: 20

And now I get 4 results instead of 5.

So it seems to always ignore the last name comma value in the set.. very strange.

▸ quoted from Dan Vande More

-----Original Message-----
From: Dan Vande More [mailto:user-f3c4c62d9d50@xymon.invalid] 
Sent: Thursday, November 19, 2009 6:22 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: [hobbit] Issues with NCV

IIRC correctly, you need a newline at the end of the last one.

If that's not that case, then try swapping the last one and third one
around in an effort to troubleshoot - it may be that the 4th has some
misconfiguration or something.

On Thu, Nov 19, 2009 at 4:18 PM, Tom Moore <user-09591bca676f@xymon.invalid> wrote:

I'm tearing my hair out trying to solve this one, hopefully someone can help.

I'm trying to set up a graph using NCV, which has worked great in the past, albeit only graphing one or two values.  I'm trying to send 4 values and it's truncating the last one, i.e. the RRD file only shows 3.

My output is simply this:

Bus 1 IO/Sec: 0
Bus 1 Q-IOs: 46
Bus 2 IO/Sec: 0
Bus 2 Q-IOs: 47

My hobbitserver.cfg has a line to catch everything:

NCV_powermt="*:GAUGE"

I run the client side script, and this is what I get from the rrdtool dump

<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
       <step> 300 </step> <!-- Seconds -->
       <lastupdate> 1258672448 </lastupdate> <!-- 2009-11-19 18:14:08 EST -->

       <ds>
               <name> Bus1IOSec </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> 0 </last_ds>
               <value> 0.0000000000e+00 </value>
               <unknown_sec> 238 </unknown_sec>
       </ds>

       <ds>
               <name> Bus1QIOs </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> 46 </last_ds>
               <value> 1.0800000000e+03 </value>
               <unknown_sec> 238 </unknown_sec>
       </ds>

       <ds>
               <name> Bus2IOSec </name>
               <type> GAUGE </type>
               <minimal_heartbeat> 600 </minimal_heartbeat>
               <min> NaN </min>
               <max> NaN </max>

               <!-- PDP Status -->
               <last_ds> 0 </last_ds>
               <value> 0.0000000000e+00 </value>
               <unknown_sec> 238 </unknown_sec>
       </ds>

<!-- Round Robin Archives -->   <rra>
-----snip------


I can rearrange the output from the client script to say:

Bus 2 Q-IOs: 47
Bus 1 IO/Sec: 0
Bus 1 Q-IOs: 46
Bus 2 IO/Sec: 0


Then the dump from RRD just has Bus2QIOs, Bus1IOSec, and Bus1QIOs

So it's always dropping the 4th value.

Is there some sort of limitation or bug in NCV that only captures 3 NCVs?


Thanks!

Issues with NCV 🔗 link

Issues with NCV