Re: Ignite events related server nodes

[Razmik Mkrtchyan]

Thank you very much.

On Oct 19, 2017 00:33, "vkulichenko"  wrote:

> You should use disconnect/reconnect events in this case, as described in
> provided doc. They are designed exactly for you scenario.
>
> -Val
>
>
>
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>

Re: Ignite events related server nodes

[vkulichenko]

You should use disconnect/reconnect events in this case, as described in
provided doc. They are designed exactly for you scenario.

-Val



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Re: Ignite events related server nodes

[daniels]

Hi,
Thank you for answer.
e.g. I have 2 server nodes(scaled same node) and 4 clients. I am scaling
server node to  0 . Now I have 0 server 4 clients.
Now I am again scailing to 1 or 2.
And when first server node is connecting I want to do some refreshes in my
code (where my client node is located )  ,that refreshes are needed only one
time.from 0 nodes  to 1(firs connection) .(or from 2 nodes to 0-last
disconnection)

p.s. As to refreshing it can be for example  map clearing,not  related to
ignite.



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Re: Ignite events related server nodes

[vkulichenko]

Discovery events are essential, so they are always enabled, regardless of
configuration.

As for "last disconnection, or first connection", can you please clarify
what you mean by this? What's the use case behind this?

Also take a look at this page about client reconnection:
https://apacheignite.readme.io/docs/clients-vs-servers#client-reconnection.
It seems to me this can be what you're actually looking for.

-Val



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Ignite events related server nodes

[daniels]

Hi everybody,

I want to listen first server node connection , or last server node
disconnection,for doing some actions.

I wrote the following code 
ingite.events().localListen(event -> {
if(!((DiscoveryEvent) event).eventNode().isClient()){
something();
}
return true;
}, EventType.EVT_NODE_LEFT);

 something() method  occures every server node disconnection,but I want on
last disconnection,or first conncetion. 

And one more question related events,
 I read (from documentations) what -
"To get notified of any tasks or cache events occurring within the cluster,
includeEventTypes property of IgniteConfiguration must be enabled."

the above mentioned code works even if I didnt set "includeEventTypes" in
IgniteCinfiguration explicitly. Why it is works? 


Thanks.








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