ignite-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Barrett Strausser <barr...@bossanova.com>
Subject Re: Client Reconnect Lifecycle with Continuous Queries
Date Wed, 10 Aug 2016 18:57:29 GMT
I believe I have encountered this

My workaround was to in my client side code register a client side handler
for the CLIENT_DISCONNECTED event. When that occurs I attempt to close the
cursor, handling exceptions thrown, get a NEW handle on the cache and
re-register my queries.

It's ugly to do this because you can't just pass in a cache proxy instance
to a client but must provide some sort of factory and also build the
facility to re-register queries.

It seems to work though.


On Wed, Aug 10, 2016 at 1:49 PM, Nikolai Tikhonov <ntikhonov@apache.org>

> Hi,
> In your case, a client node will deploy CQ query on new nodes which will
> join to topology. Until you don't stop CQ (invoke close() method) or node
> (which started CQ) stays in topology you will getting events.
> On Thu, Aug 4, 2016 at 4:11 PM, barrettbnr <barrett@bossanova.com> wrote:
>> I'm trying to understand the lifecycle of reconnecting
>> I have created a gist with testcase and some logging output
>> https://gist.github.com/bearrito/a2aed9e3e8e06799d3f5b27fc997aaa6
>> My question is why does the client still receive the cache put event even
>> after it has been disconnected and then receives the reconnect event ?
>> This is evidenced by the line that says: GOT POST-RECONNECT:
>> 98cb5181-f06a-4f29-8683-a2fb4429b8be
>> From the documentation it seems that I should not have to get a new cache
>> instance, but rather should be able to use, the previous cache instance?
>> It
>> also seems like my previous continuous query should not have continued
>> working.
>> Is there a difference between a network disconnect and reconnecting after
>> the grid node has called closed?
>> I'm mainly interested in answering how to reconnect my continuous queries
>> after I've received a CLIENT_NODE_RECONNECTED event.
>> --
>> View this message in context: http://apache-ignite-users.705
>> 18.x6.nabble.com/Client-Reconnect-Lifecycle-with-Continuous-
>> Queries-tp6763.html
>> Sent from the Apache Ignite Users mailing list archive at Nabble.com.

View raw message