If these app instances sit idle for a while, they might just be timing out
their sockets. You can tweak socket settings on the driver as described
here:
https://github.com/datastax/java-driver/tree/3.x/manual/socket_options
Perhaps start with explicitly setting keepAlive to true as that may or may
No host was tried because nodes were unresponsive and the driver marked
them as down. When too many nodes get marked as down, the driver eventually
runs out of nodes so ends up in NoHostAvailableException.
Nodes become unresponsive because they are overloaded. You either throttle
back the app thro
On Wed, Aug 30, 2017 at 5:10 PM, Ivan Iliev
wrote:
> Hello everyone,
>
> We are using Cassandra 3.9 for storing quite a lot of data produced from
> our tester machines.
>
> Occasionally, we are seeing issues with apps not being able to communicate
> with Cassandra nodes, returning the following e