Open Stack

Is the object-server running on the node and is it using port 6000 and does it have recon in the pipeline e.g.

grep pipeline /etc/swift/object-server.conf
[pipeline:main]
pipeline = recon name_check object-serve

Gerry

From: pragya jain [mailto:prag_2648 at yahoo.co.in]
Sent: 11 March 2014 06:17
To: Drudy, Gerry; Steve Mayer
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] swift recon query

Thanks Drudy Gerry for answering my queries.

But when I use curl command for recon, I get the following results:

root at swift-VirtualBox:~# curl -i http://127.0.0.1:6000/recon/mounted
curl: (7) couldn't connect to host

I don't understand where is the problem. Please help.

Thanks
Pragya Jain

On Friday, 7 March 2014 3:51 PM, "Drudy, Gerry" <Gerry.Drudy at hp.com> wrote:
Comments inline.

From: pragya jain [mailto:prag_2648 at yahoo.co.in]
Sent: 07 March 2014 05:33
To: Steve Mayer; Drudy, Gerry
Cc: openstack at lists.openstack.org
Subject: Re: [Openstack] swift recon query

Hello Steve,

My questions about swift recon are:

Q1: what should be the curl command for recon?
For example, to get a list of mounted devices on an object server:
curl -i http://<an-object-server-ip>:6000/recon/mounted

Q2. what arguments should I use with 'swift-recon' command to get the status about
                   (i)      /proc/meminfo,
I’m not sure you can get meminfo using the swift-recon command. But you can use curl to get meminfo from a node, the following is a request to an object server:
curl -i http://<an-object-server-ip>:6000/recon/mem

                   (ii)    currently mounted file systems
Use ‘swift-recon –d’

                   (iii)    list of devices
Same as ii.


Q3. When I run swift-recon command, It respond in terms of low: <> high: <> avg: <> total: <> failed: <> no_result: <>
For example,
root at swift-VirtualBox:~# swift-recon account --auditor
===============================================================================
--> Starting reconnaissance on 4 hosts
===============================================================================
[2014-02-12 15:05:20] Checking auditor stats
[account_auditor_pass_completed] low: 0, high: 0, avg: 0.0, total: 0, Failed: 0.0%, no_result: 0, reported: 1
[account_audits_passed] - No hosts returned valid data.
[account_audits_failed] - No hosts returned valid data.
[account_audits_since] - No hosts returned valid data.


What is the meaning of following terms: low, high, avg, total, failed, no_result, and reported ?
Typically the ‘low’ would indicate the value from a node with the lowest value. For example if you are looking at async pendings, each node will have a different async pending queue length. The low value indicates queue length for the node with the smallest queue length, while the high indicates the longest async pending queue length and avg is the average queue length for all nodes.  The total is the total number of async pending across all nodes.  I think reported typically means the number of nodes it has got a result from? I can’t give you a clear definition of failed and no_result!


Thanks
Pragya Jain

On Thursday, 6 March 2014 9:14 PM, Steve Mayer <smayer69 at me.com> wrote:
The '-a' argument to swift-recon is for looking at the async-pendings,
which will only be available if you've set up the
/usr/bin/swift-recon-cron job on the object server nodes.

Try running with the '-d' or '-l' arguments to see some actual
statistics.

--
Steve Mayer
smayer69 at me.com<mailto:smayer69 at me.com>

On 6 Mar 2014, at 2:31, Drudy, Gerry wrote:

> Add the verbose option to swift-recon:
>
> swift-recon -av
>
> It will list all the object servers in the ring.  Each server listed
> should have the object-server process running.
>
> Gerry.
>
> From: pragya jain [mailto:prag_2648 at yahoo.co.in<mailto:prag_2648 at yahoo.co.in>]
> Sent: 06 March 2014 10:25
> To: Drudy, Gerry; openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>
> Subject: Re: [Openstack] swift recon query
>
> hi Gerry,
>
> I run following commands:
> root at swift-VirtualBox<mailto:root at swift-VirtualBox>:~# curl -i http://127.0.0.1:6000/recon/async
> curl: (7) couldn't connect to host
> root at swift-VirtualBox<mailto:root at swift-VirtualBox>:~# swift-recon -a
> ===============================================================================
> --> Starting reconnaissance on 4 hosts
> ===============================================================================
> [2014-03-06 15:51:14] Checking async pendings
> [async_pending] - No hosts returned valid data.
> ===============================================================================
> I can't understand where is the problem
>
> Please help.
>
> Thanks
> Pragya jain
>
> On Thursday, 6 March 2014 2:38 PM, "Drudy, Gerry" <Gerry.Drudy at hp.com<mailto:Gerry.Drudy at hp.com>>
> wrote:
> Try
>
> curl  -i http://127.0.0.1:6000/recon/async
>
> assuming 6000 is the port the object-server binds to.
>
> Gerry,
>
> From: pragya jain [mailto:prag_2648 at yahoo.co.in<mailto:prag_2648 at yahoo.co.in>]
> Sent: 06 March 2014 06:58
> To: openstack at lists.openstack.org<mailto:openstack at lists.openstack.org>
> Subject: Re: [Openstack] swift recon query
>
> please somebody answer my questions related to swift recon.
>
> Thanks
>
> Pragya Jain
>
> On Wednesday, 5 March 2014 2:31 PM, pragya jain
> <prag_2648 at yahoo.co.in<mailto:prag_2648 at yahoo.co.in>> wrote:
> hello all,
>
> I have some basic questions about swift recon. please query them.
>
> Q1: what should be the curl command for recon?
>
> I use the following commands:
> 1.  root at swift-VirtualBox<mailto:root at swift-VirtualBox>:~# curl -i http://127.0.0.1:8080/recon/async
>
> HTTP/1.1 401 Unauthorized
> Content-Length: 131
> Content-Type: text/html; charset=UTF-8
> Www-Authenticate: Swift realm="async"
> X-Trans-Id: txe8c8850fc0a74ae095faa-005316e3a5
> Date: Wed, 05 Mar 2014 08:43:17 GMT
>
> <html><h1>Unauthorized</h1><p>This server could not verify that you
> are authorized to access the document you requested.</p></html>
>
> 2.  root at swift-VirtualBox<mailto:root at swift-VirtualBox>:~# curl -i
> http://127.0.0.1:8080/v1/AUTH_prag2648/recon/async
>
> HTTP/1.1 401 Unauthorized
> Content-Length: 131
> Content-Type: text/html; charset=UTF-8
> Www-Authenticate: Swift realm="AUTH_prag2648"
> X-Trans-Id: tx978f787ce01f446a9beeb-005316e424
> Date: Wed, 05 Mar 2014 08:45:24 GMT
>
> <html><h1>Unauthorized</h1><p>This server could not verify that you
> are authorized to access the document you requested.</p></html>
>
> Q2. Does 'swift-recon' command not provide the status about
>                    (i)      /proc/meminfo,
>                    (ii)    currently mounted file systems
>                    (iii)    list of devices
>    if 'swift-recon' provides these informations, then what should be
> the command?
>
> Q3. It stands for what?
>          low
>          high
>          avg
>          total
>          failed
>          no_result
>          reported
>
> Pragya Jain
>
>
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