What we(hobbit community) are missing is a good hobbit analysis documentation. My attempt is in R1 but l don't have enough bandwidth to tackle this analyis.

T.J. Yang

R1: http://en.wikibooks.org/wiki/System_Monitoring_with_Hobbit/User_Guide#Why_us...

From: "Rob MacGregor" <rob.macgregor at gmail.com> Reply-To: hobbit at hswn.dk To: hobbit at hswn.dk Subject: Re: [hobbit] Hobbit Features Date: Tue, 21 Aug 2007 09:39:12 +0100

On 8/21/07, Ryan Jay B. Lapuz <rlapuz at fcpp.fujitsu.com> wrote:

...

Next week, I will defend Hobbit against the 3 other server monitoring

tool

...

regarding of what tool are we going to use and I am wondering if you can give me some important information or advantage of Hobbit among the others.

If you search the archives you'll find (at least) one long thread on exactly this topic.

-- Please keep list traffic on the list.

Rob MacGregor Whoever fights monsters should see to it that in the process he doesn't become a monster. Friedrich Nietzsche

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Hi All,

I asked this question before but got a mixed response. If I wanted to add an additional test to the client data received by hobbit from a client machine with the intention of writing a server side module to produce a status message (the way the core hobbit tests do) how would I go about sending the data from the client to the server?

I have looked at the man pages for bb and I think it's the data "stream" i.e:

$BBHOME/bin/bb <Server IP> "data foo,bar,com.test\n This is a test"

But after running this nothing appears on the server - have I misunderstood? If not where is this "data" message being stored on the server?

Thanks, Jason.

On Tue, Aug 21, 2007 at 01:40:54PM +0100, Jones, Jason (Altrincham) wrote:

I asked this question before but got a mixed response. If I wanted to add an additional test to the client data received by hobbit from a client machine with the intention of writing a server side module to produce a status message (the way the core hobbit tests do) how would I go about sending the data from the client to the server?

I have looked at the man pages for bb and I think it's the data "stream" i.e:

$BBHOME/bin/bb <Server IP> "data foo,bar,com.test\n This is a test"

But after running this nothing appears on the server - have I misunderstood?

There are really 3 different ways you can feed information into Hobbit.

1. "status" message. The simplest one - the client determines everything, including the color of the status, and sends all of it to the Hobbit server. There is no server-side processing of the status, it just goes on the web display (and triggers alerts, stores graph data etc.)

2. "data" message. Similar to "status", but it doesn't generate a status column item on the webpage. This data is just copied to the server-side modules that are fed from the "data" channel; they can then do whatever they like with the data, including some analysis that ends up generating a "status" column. But in itself, the data you send in a "data" message does nothing on the Hobbit server. This is currently used for some of the standard data that Hobbit tracks, like "vmstat" which doesn't have a status column but which does get analysed and stored in graphs.

3. "client" message. A special kind of "data" message generated by the Hobbit clients. You really shouldn't generate this kind of message from a script; if you must, then I'd recommend adding it to the hobbit-client's bin/hobbitclient-OSNAME.sh script. The reason is that the server- side module handling "client" messages assumes that certain parts of the client-data is always present, so if you feed it a message with only your custom bits then things might break.

So you're on the right track, I think, with your custom "data" message. You just need to come up with a small server-side script to grab the message off the Hobbit "data" channel on the server. Try running (on the Hobbit server, logged in as the "hobbit" user)

bbcmd hobbitd_channel --channel=data cat

and then fire off the command on the client that sends your test-data; you should then see it dumped to the screen on your Hobbit server.

Regards, Henrik