Re: [pcp] One pmwebapi against multiple pcp running hosts

[Jun Wang <junwang123@xxxxxxxxx>]

Hi Frank/Nathan,

I was trying to use the summary PMDA and have two questions.

1. I wasn't sure whether the followings are right.

2. We noticed that we lost the Unit for summary.avg.memory in pmwebapi. mem.util.used is using u64 and kbyte, but the summary is a double (no kbyte unit). I tried to add "summary.avg.memory = avg_host $memoryhosts Kbyte", but got a syntax error.

Can someone help?

# pwd

/var/lib/pcp/pmdas/summary

# Âdiff -u expr.pmie.orig expr.pmie.goodÂ

--- expr.pmie.orig 2013-04-04 22:26:06.000000000 +0000

+++ expr.pmie.good 2013-04-04 23:20:42.000000000 +0000

@@ -38,3 +38,10 @@

Â

Â// proportion of network interfaces that are busy

Âsummary.netif.busy = (count_inst $netio > 400) / (count_inst $netio >= 0);

+

+// average cpu utilization

+hosts = ":'atla-anf-02-sr1' :'atla-anf-03-sr1'";

+cpuhosts = "kernel.all.cpu.user $hosts";

+memoryhosts = "mem.util.used $hosts";

+summary.avg.cpu = avg_host $cpuhosts;

+summary.avg.memory = avg_host $memoryhosts;

[root@atla-aap-09-sr1 summary]# Âdiff -u pmns.orig pmns

--- pmns.orig 2013-04-04 22:25:56.000000000 +0000

+++ pmns 2013-04-04 22:26:24.000000000 +0000

@@ -6,6 +6,7 @@

 cpu

 disk

 netif

+ Â Â Â ÂavgÂ

Â}

Â

Âsummary.cpu {

@@ -22,3 +23,8 @@

 packets SYSSUMMARY:0:6

 busy SYSSUMMARY:0:7

Â}

+

+summary.avg {

+ cpu SYSSUMMARY:0:8

+ memory ÂSYSSUMMARY:0:9

+}

On Tue, Apr 2, 2013 at 11:17 PM, Dev Priya <devpriya00@xxxxxxxxx> wrote:

Hi Frank,

The latest version works like a charm :)

Thanks a lot,

Dev

On Tue, Apr 2, 2013 at 3:27 PM, Frank Ch. Eigler <fche@xxxxxxxxxx> wrote:

Hi -

> [...]

> I verified it by manually CURLing the url too. Even in verbose mode the
> output is too less to find out why the context creation might have failed.
> Is there a way to increase the verbosity of the logs even further?

The current fche/pmwebapi branch contains a fix for a thinko that
could explain misbehaving context creation. ÂWith one level of "pmwebd -v"
verbosity, you get a pmErrStr explanation for the failing contexts.

- FChE

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