Hi, As far as I remember Ignite community fixed a lot of issues related to the stability of TCP discovery SPI in version 1.5.0. The one you face should be fixed as well. So please upgrade to version 1.5.0 and check you app with it.
1. Is there any restriction on the number of clients which can be created per ignite server node? five connections in my case are created by different storm worker node There is no any specific limitation. However the golden rule that apply to any technology or platform is to use as less resources as possible :) 2. The runtime error does not happen so often if I disable the cache store, any reason for this Just give a try to 1.5.0. Probably cache stored trigger that exception on your side. 3. The client connections are opened and kept alive till the end, do you see any side effect of this? This shouldn't be the case. Close clients only if you're not going to use them for a long time. 4. Is it better to create multimode ignite cluster (more than one server node) for an input of 5-10 lakhs (1 million) Yes, if you have several boxes/machines that you're going to use then you can start several servers nodes on them and will only benefit from this. 5. Please suggest any other way of connecting different components (storm, ignite, Cassandra) which can produce the better result Again, I would suggest switching to 1.5.0 before. As per Cassandra there is a work on the go related to the integration of Ignite and Cassandra. [1] Hope it will be finished soon. [1] https://issues.apache.org/jira/browse/IGNITE-1371 Regards, Denis -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Runtime-error-at-IgniteSpiThread-tp2630p2652.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.