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Posted to users@qpid.apache.org by "GS.Chandra N" <gs...@gmail.com> on 2009/02/13 07:23:53 UTC
Doubts on the environment
Hi,
I have some doubts about the tools and environment in general and would
someone clear them for me please ?
1. What is the rate of stats displayed by qpid-queue-stat. I'm confused
by the fact that it displays "Sec" as 10. So are the stats at 10 sec rate or
1 sec rate but measured only every 10 secs?
2. How do i clear the exchange, server and client queue stats before
re-running stats - currently i have to bring everything down to get fresh
stats - this seems extremely cumbersome.
3. Does C++ clients support a management queue like cpp broker, to get
stats etc?
4. I create queues with the same name everytime. When i bring down my
cleitn and reconnect again i seem to get the data from the old queue though
i have not mentioned persistence as an attribute of my queue. What gives?
connection.start()
session = connection.session(str(uuid4()))
server_q_name = "pyclient-feeds-queue"
session.queue_declare(queue=server_q_name, exclusive=True)
local_q_name = "local feeds queue"
local_q = session.incoming(local_q_name)
session.message_subscribe(queue=server_q_name, destination=local_q_name)
local_q.start()
Thanks
Arun
Re: Doubts on the environment
Posted by "GS.Chandra N" <gs...@gmail.com>.
On Fri, Feb 13, 2009 at 8:27 PM, Ted Ross <tr...@redhat.com> wrote:
>qpid-queue-stat displays the statistics as they are published by the
broker. By default, this is every 10 seconds. You can change the rate
using the --mgmt-pub-interval switch on the broker's command line. The
rates displayed by qpid-queue-stats are normalized to units-per-second.
One another doubt Tedd, is this - the rates ought to be different from one
queue / exchange to another, based on the individual incoming and dequing
rates. Is there any way to get this figure, rather than the normalized rates
for the entire broker?
Thanks
gs
GS.Chandra N wrote:
>
>> Hi,
>>
>> I have some doubts about the tools and environment in general and would
>> someone clear them for me please ?
>>
>> 1. What is the rate of stats displayed by qpid-queue-stat. I'm confused
>> by the fact that it displays "Sec" as 10. So are the stats at 10 sec
>> rate or
>> 1 sec rate but measured only every 10 secs?
>>
>>
> qpid-queue-stat displays the statistics as they are published by the
> broker. By default, this is every 10 seconds. You can change the rate
> using the --mgmt-pub-interval switch on the broker's command line. The
> rates displayed by qpid-queue-stats are normalized to units-per-second.
>
>> 2. How do i clear the exchange, server and client queue stats before
>> re-running stats - currently i have to bring everything down to get
>> fresh
>> stats - this seems extremely cumbersome.
>>
>>
> There's no support for clearing the stats but qpid-queue-stats only shows
> rates and depths which should go to zero by themselves between tests.
>
>> 3. Does C++ clients support a management queue like cpp broker, to get
>> stats etc?
>>
>>
> No.
>
>> 4. I create queues with the same name everytime. When i bring down my
>> cleitn and reconnect again i seem to get the data from the old queue
>> though
>> i have not mentioned persistence as an attribute of my queue. What
>> gives?
>>
>>
> You should add "auto_delete=True" to the session.queue_declare function.
> Otherwise, the queue stays in place between test runs.
>
>> connection.start()
>> session = connection.session(str(uuid4()))
>>
>> server_q_name = "pyclient-feeds-queue"
>> session.queue_declare(queue=server_q_name, exclusive=True)
>>
>> local_q_name = "local feeds queue"
>> local_q = session.incoming(local_q_name)
>>
>> session.message_subscribe(queue=server_q_name, destination=local_q_name)
>> local_q.start()
>>
>> Thanks
>> Arun
>>
>>
>>
> -Ted
>
>
> ---------------------------------------------------------------------
> Apache Qpid - AMQP Messaging Implementation
> Project: http://qpid.apache.org
> Use/Interact: mailto:users-subscribe@qpid.apache.org
>
>
Re: Doubts on the environment
Posted by "GS.Chandra N" <gs...@gmail.com>.
>On Mon, Feb 16, 2009 at 7:01 PM, Carl Trieloff <cc...@redhat.com>wrote:
>no, we don't have a load from file utility. so options today are
qpi-config, via QMF or via AMQP
command set
Thanks for the reply Carl.
I do remember seeing something on QMF but command sets are new to me. Can
you please direct me to the appropriate documentation ?
Thanks
gs
On Mon, Feb 16, 2009 at 7:01 PM, Carl Trieloff <cc...@redhat.com>wrote:
> GS.Chandra N wrote:
>
>> On Sat, Feb 14, 2009 at 1:59 AM, Ted Ross <tr...@redhat.com> wrote:
>>
>>
>>> For your purposes, it might be better to declare your own headers
>>> exchange
>>>
>>>
>>
>> Thanks for the reply Tedd. I saw how to achieve this using qpid-config.
>> Are
>> there any other ways, like declaring the required exchanges / queues as
>> set
>> of commands in the configuration file? I saw something similar once but
>> cannot find it now in any of the docs.
>>
>
> no, we don't have a load from file utility. so options today are
> qpi-config, via QMF or via AMQP
> command set
>
> Carl.
>
Re: Doubts on the environment
Posted by Carl Trieloff <cc...@redhat.com>.
GS.Chandra N wrote:
> On Sat, Feb 14, 2009 at 1:59 AM, Ted Ross <tr...@redhat.com> wrote:
>
>> For your purposes, it might be better to declare your own headers exchange
>>
>
> Thanks for the reply Tedd. I saw how to achieve this using qpid-config. Are
> there any other ways, like declaring the required exchanges / queues as set
> of commands in the configuration file? I saw something similar once but
> cannot find it now in any of the docs.
no, we don't have a load from file utility. so options today are
qpi-config, via QMF or via AMQP
command set
Carl.
Re: Doubts on the environment
Posted by "GS.Chandra N" <gs...@gmail.com>.
On Sat, Feb 14, 2009 at 1:59 AM, Ted Ross <tr...@redhat.com> wrote:
>For your purposes, it might be better to declare your own headers exchange
Thanks for the reply Tedd. I saw how to achieve this using qpid-config. Are
there any other ways, like declaring the required exchanges / queues as set
of commands in the configuration file? I saw something similar once but
cannot find it now in any of the docs.
Thanks
gs
GS.Chandra N wrote:
>
>> On Fri, Feb 13, 2009 at 8:27 PM, Ted Ross <tr...@redhat.com> wrote:
>>
>>
>>
>>> You should add "auto_delete=True" to the session.queue_declare function.
>>>
>>>
>> Otherwise, the queue stays in place between test runs.
>>
>> Ok. But what about exchanges ? When i do a show from qpid-tool on the
>> amq.match exchange it shows property durable to be true. How do i
>> configure
>> this?
>>
>>
> amq.match is a special case as it is declared by default on the broker.
> You can neither delete nor configure any of the amq.* exchanges. For your
> purposes, it might be better to declare your own headers exchange, use it,
> then delete it when you are done.
>
>>
>>
>>> qpid-queue-stat displays the statistics as they are published by the
>>>
>>>
>> broker.
>>
>> Not related but when i do a show on the queue from the apid-tool i see
>> latency related figures in it. But they are always zero. Now how do i get
>> these figures to show the actual latencies ?
>>
>>
> The latency statistics under queue are not yet implemented. I think
> there's a Jira outstanding for this missing feature.
>
> Regards,
>
> -Ted
>
>
Re: Doubts on the environment
Posted by Ted Ross <tr...@redhat.com>.
GS.Chandra N wrote:
> On Fri, Feb 13, 2009 at 8:27 PM, Ted Ross <tr...@redhat.com> wrote:
>
>
>> You should add "auto_delete=True" to the session.queue_declare function.
>>
> Otherwise, the queue stays in place between test runs.
>
> Ok. But what about exchanges ? When i do a show from qpid-tool on the
> amq.match exchange it shows property durable to be true. How do i configure
> this?
>
amq.match is a special case as it is declared by default on the broker.
You can neither delete nor configure any of the amq.* exchanges. For
your purposes, it might be better to declare your own headers exchange,
use it, then delete it when you are done.
>
>> qpid-queue-stat displays the statistics as they are published by the
>>
> broker.
>
> Not related but when i do a show on the queue from the apid-tool i see
> latency related figures in it. But they are always zero. Now how do i get
> these figures to show the actual latencies ?
>
The latency statistics under queue are not yet implemented. I think
there's a Jira outstanding for this missing feature.
Regards,
-Ted
Re: Doubts on the environment
Posted by "GS.Chandra N" <gs...@gmail.com>.
On Fri, Feb 13, 2009 at 8:27 PM, Ted Ross <tr...@redhat.com> wrote:
>You should add "auto_delete=True" to the session.queue_declare function.
Otherwise, the queue stays in place between test runs.
Ok. But what about exchanges ? When i do a show from qpid-tool on the
amq.match exchange it shows property durable to be true. How do i configure
this?
>qpid-queue-stat displays the statistics as they are published by the
broker.
Not related but when i do a show on the queue from the apid-tool i see
latency related figures in it. But they are always zero. Now how do i get
these figures to show the actual latencies ?
Thanks for the replies
gs
On Fri, Feb 13, 2009 at 8:27 PM, Ted Ross <tr...@redhat.com> wrote:
> GS.Chandra N wrote:
>
>> Hi,
>>
>> I have some doubts about the tools and environment in general and would
>> someone clear them for me please ?
>>
>> 1. What is the rate of stats displayed by qpid-queue-stat. I'm confused
>> by the fact that it displays "Sec" as 10. So are the stats at 10 sec
>> rate or
>> 1 sec rate but measured only every 10 secs?
>>
>>
> qpid-queue-stat displays the statistics as they are published by the
> broker. By default, this is every 10 seconds. You can change the rate
> using the --mgmt-pub-interval switch on the broker's command line. The
> rates displayed by qpid-queue-stats are normalized to units-per-second.
>
>> 2. How do i clear the exchange, server and client queue stats before
>> re-running stats - currently i have to bring everything down to get
>> fresh
>> stats - this seems extremely cumbersome.
>>
>>
> There's no support for clearing the stats but qpid-queue-stats only shows
> rates and depths which should go to zero by themselves between tests.
>
>> 3. Does C++ clients support a management queue like cpp broker, to get
>> stats etc?
>>
>>
> No.
>
>> 4. I create queues with the same name everytime. When i bring down my
>> cleitn and reconnect again i seem to get the data from the old queue
>> though
>> i have not mentioned persistence as an attribute of my queue. What
>> gives?
>>
>>
> You should add "auto_delete=True" to the session.queue_declare function.
> Otherwise, the queue stays in place between test runs.
>
>> connection.start()
>> session = connection.session(str(uuid4()))
>>
>> server_q_name = "pyclient-feeds-queue"
>> session.queue_declare(queue=server_q_name, exclusive=True)
>>
>> local_q_name = "local feeds queue"
>> local_q = session.incoming(local_q_name)
>>
>> session.message_subscribe(queue=server_q_name, destination=local_q_name)
>> local_q.start()
>>
>> Thanks
>> Arun
>>
>>
>>
> -Ted
>
>
> ---------------------------------------------------------------------
> Apache Qpid - AMQP Messaging Implementation
> Project: http://qpid.apache.org
> Use/Interact: mailto:users-subscribe@qpid.apache.org
>
>
Re: Doubts on the environment
Posted by Ted Ross <tr...@redhat.com>.
GS.Chandra N wrote:
> Hi,
>
> I have some doubts about the tools and environment in general and would
> someone clear them for me please ?
>
> 1. What is the rate of stats displayed by qpid-queue-stat. I'm confused
> by the fact that it displays "Sec" as 10. So are the stats at 10 sec rate or
> 1 sec rate but measured only every 10 secs?
>
qpid-queue-stat displays the statistics as they are published by the
broker. By default, this is every 10 seconds. You can change the rate
using the --mgmt-pub-interval switch on the broker's command line. The
rates displayed by qpid-queue-stats are normalized to units-per-second.
> 2. How do i clear the exchange, server and client queue stats before
> re-running stats - currently i have to bring everything down to get fresh
> stats - this seems extremely cumbersome.
>
There's no support for clearing the stats but qpid-queue-stats only
shows rates and depths which should go to zero by themselves between tests.
> 3. Does C++ clients support a management queue like cpp broker, to get
> stats etc?
>
No.
> 4. I create queues with the same name everytime. When i bring down my
> cleitn and reconnect again i seem to get the data from the old queue though
> i have not mentioned persistence as an attribute of my queue. What gives?
>
You should add "auto_delete=True" to the session.queue_declare
function. Otherwise, the queue stays in place between test runs.
> connection.start()
> session = connection.session(str(uuid4()))
>
> server_q_name = "pyclient-feeds-queue"
> session.queue_declare(queue=server_q_name, exclusive=True)
>
> local_q_name = "local feeds queue"
> local_q = session.incoming(local_q_name)
>
> session.message_subscribe(queue=server_q_name, destination=local_q_name)
> local_q.start()
>
> Thanks
> Arun
>
>
-Ted
---------------------------------------------------------------------
Apache Qpid - AMQP Messaging Implementation
Project: http://qpid.apache.org
Use/Interact: mailto:users-subscribe@qpid.apache.org