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Posted to user@ignite.apache.org by Pavel Tupitsyn <pt...@apache.org> on 2019/09/16 09:14:49 UTC
Re: .net thin client taking time to establish connection to server node
Hi, try increasing ClientConnectorConfiguration.ThreadPoolSize on server
nodes
On Sun, Sep 15, 2019 at 11:10 AM siva <si...@bizruntime.com> wrote:
> Hi,
>
> We are using *.net thinclient * and *one serever(.net)*.For less number of
> connections,its establishing connection to the server in milliseconds ,but
> as the number of connections increasing(concurrently), establishing
> connection between thin client and server taking in seconds even some times
> taking upto 1 minute.So, is there any tuning to set or need to increase the
> server nodes?
>
>
>
>
>
>
> Thanks
> siva
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
Re: .net thin client taking time to establish connection to server node
Posted by Pavel Tupitsyn <pt...@apache.org>.
Tried to run the reproducer and got `Cache doesn't exist:
6e7b08b5-3bfd-4026-b322-c4a34ffkafd7_Forms` exception.
On Tue, Oct 1, 2019 at 3:16 PM siva <si...@bizruntime.com> wrote:
> Hi Pavel,
>
>
> *Maybe something else is affecting request time in staging?*
> chances of others services trying to connect (from front end requests)
>
> *Do you make requests from your local machine to staging environment?*
> yes,i have made a request to the staging environment ignite server from
> local machine console app to test.
>
> *How fast is the connection between thin client and server?
> *
>
> from local machine to local ignite server its taking microseconds and
> milliseconds upto 10ms max
>
> but from local machine to staging ignite server(cloud) its taking more
> time.
> i have attached the screen shot
>
>
> *Code
> *
>
> This github code describes similer to the client applications trying to
> the
> ignite server
>
>
> https://github.com/cvakarna/ignitethinclient-reproducer/tree/master/IgniteConnectionTest
> <
> https://github.com/cvakarna/ignitethinclient-reproducer/tree/master/IgniteConnectionTest>
>
>
> This github link similer to the server code
>
> https://github.com/cvakarna/ignitereproducer/tree/master/IgniteReproducerServer
> <
> https://github.com/cvakarna/ignitereproducer/tree/master/IgniteReproducerServer>
>
>
>
>
> <
> http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_3.png>
>
>
>
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
Re: .net thin client taking time to establish connection to server
node
Posted by siva <si...@bizruntime.com>.
Hi Pavel,
*Maybe something else is affecting request time in staging?*
chances of others services trying to connect (from front end requests)
*Do you make requests from your local machine to staging environment?*
yes,i have made a request to the staging environment ignite server from
local machine console app to test.
*How fast is the connection between thin client and server?
*
from local machine to local ignite server its taking microseconds and
milliseconds upto 10ms max
but from local machine to staging ignite server(cloud) its taking more
time.
i have attached the screen shot
*Code
*
This github code describes similer to the client applications trying to the
ignite server
https://github.com/cvakarna/ignitethinclient-reproducer/tree/master/IgniteConnectionTest
<https://github.com/cvakarna/ignitethinclient-reproducer/tree/master/IgniteConnectionTest>
This github link similer to the server code
https://github.com/cvakarna/ignitereproducer/tree/master/IgniteReproducerServer
<https://github.com/cvakarna/ignitereproducer/tree/master/IgniteReproducerServer>
<http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_3.png>
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Re: .net thin client taking time to establish connection to server node
Posted by Pavel Tupitsyn <pt...@apache.org>.
Maybe something else is affecting request time in staging?
Do you make requests from your local machine to staging environment?
How fast is the connection between thin client and server?
On Mon, Sep 30, 2019 at 1:28 PM siva <si...@bizruntime.com> wrote:
> Hi Pavel,
>
> *Can you please provide a minimal reproducer?*
>
> for reproducing,i have tried in local ,its taking minimal time only,but
> from actual application(staging environment (cloud)) its taking more time
> to establish the connection .
>
>
> I have taken 5 minute duration in staging env ,to create client connection
> total 325 request arrived ,out of these 9 requests taken from 300 ms to 3
> sec.
>
> I have attached the screen shots
>
> <
> http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_1.png>
>
>
> <
> http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_2.png>
>
>
>
>
> Thanks
> siva
>
>
>
>
>
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
Re: .net thin client taking time to establish connection to server
node
Posted by siva <si...@bizruntime.com>.
Hi Pavel,
*Can you please provide a minimal reproducer?*
for reproducing,i have tried in local ,its taking minimal time only,but
from actual application(staging environment (cloud)) its taking more time
to establish the connection .
I have taken 5 minute duration in staging env ,to create client connection
total 325 request arrived ,out of these 9 requests taken from 300 ms to 3
sec.
I have attached the screen shots
<http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_1.png>
<http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_2.png>
Thanks
siva
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Re: .net thin client taking time to establish connection to server node
Posted by Pavel Tupitsyn <pt...@apache.org>.
Exceptions should not cause a slowdown. Can you please provide a minimal
reproducer?
On Thu, Sep 19, 2019 at 10:41 AM siva <si...@bizruntime.com> wrote:
> Hi,
>
> *Check CPU and RAM usage on the server*
> Cpu utilization upto 20% max
> RAM More than half memory free
>
>
> *Try increasing thread pool size further*
> Increased to 24 threads
>
>
> Found issue but not sure,like if any exception in executing query ,in that
> time period other clients try to connect ,in that case its taking long
> time.Is that limitation?
>
>
>
> Thanks
> siva
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
Re: .net thin client taking time to establish connection to server
node
Posted by siva <si...@bizruntime.com>.
Hi,
*Check CPU and RAM usage on the server*
Cpu utilization upto 20% max
RAM More than half memory free
*Try increasing thread pool size further*
Increased to 24 threads
Found issue but not sure,like if any exception in executing query ,in that
time period other clients try to connect ,in that case its taking long
time.Is that limitation?
Thanks
siva
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Re: .net thin client taking time to establish connection to server node
Posted by Pavel Tupitsyn <pt...@apache.org>.
I did some testing and did not find any inherent limitation for thin client
connection count.
So it is likely that your server is simply overloaded with work.
- Check CPU and RAM usage on the server
- Check Java GC activity with jvisualvm or similar tool and try system
tuning: https://apacheignite.readme.io/docs/jvm-and-system-tuning
- Try increasing thread pool size further
On Tue, Sep 17, 2019 at 9:35 PM Pavel Tupitsyn <pt...@apache.org> wrote:
> So 30000 simultaneous connections to one server node, right?
>
> On Tue, Sep 17, 2019 at 12:58 PM siva <si...@bizruntime.com> wrote:
>
>> Hi,
>>
>> *How many connections do you have?*
>>
>> requests will come from external applications around 30k in duration of
>> 30
>> min or more.Each request , opened connection not closing up to 1/2/3
>> min
>> since within the same request it can be multiple calls to ignite.
>>
>> <
>> http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_3.png>
>>
>>
>> i have attached sample result
>>
>> Thanks
>> siva
>>
>>
>>
>> --
>> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>>
>
Re: .net thin client taking time to establish connection to server node
Posted by Pavel Tupitsyn <pt...@apache.org>.
So 30000 simultaneous connections to one server node, right?
On Tue, Sep 17, 2019 at 12:58 PM siva <si...@bizruntime.com> wrote:
> Hi,
>
> *How many connections do you have?*
>
> requests will come from external applications around 30k in duration of 30
> min or more.Each request , opened connection not closing up to 1/2/3
> min
> since within the same request it can be multiple calls to ignite.
>
> <
> http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_3.png>
>
>
> i have attached sample result
>
> Thanks
> siva
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
Re: .net thin client taking time to establish connection to server
node
Posted by siva <si...@bizruntime.com>.
Hi,
*How many connections do you have?*
requests will come from external applications around 30k in duration of 30
min or more.Each request , opened connection not closing up to 1/2/3 min
since within the same request it can be multiple calls to ignite.
<http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_3.png>
i have attached sample result
Thanks
siva
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
Re: .net thin client taking time to establish connection to server node
Posted by Pavel Tupitsyn <pt...@apache.org>.
How many connections do you have? Can you share a reproducer please?
On Tue, Sep 17, 2019 at 12:06 PM siva <si...@bizruntime.com> wrote:
> Hi,
>
>
> I have increased threadpool size to 20 threads in xml file as bellow since
> we have 16 cores. But still result is same, taking time to establish
> connection.
>
>
>
>
>
>
>
> Results
> <
> http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_1.png>
>
>
>
>
> Thanks
> siva
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>
Re: .net thin client taking time to establish connection to server
node
Posted by siva <si...@bizruntime.com>.
Hi,
I have increased threadpool size to 20 threads in xml file as bellow since
we have 16 cores. But still result is same, taking time to establish
connection.
Results
<http://apache-ignite-users.70518.x6.nabble.com/file/t1379/Screenshot_1.png>
Thanks
siva
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/