The coordinator will refuse to send writes/hints to a node if it has a
large backlog of hints (128 * #cores) already and the destination replica
is one of the nodes with hints destined to it.
It will still send writes to any "healthy" node (a node with no outstanding
hints).
The idea is to not fur
Refs :
https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsRepairNodesHintedHandoff.html
On Thu, Jul 12, 2018 at 7:46 PM Karthick V wrote:
> Hi everyone,
>
> If several nodes experience brief outages simultaneously, substantial
>> memory pressure can build up on the coordinator.*
Hi everyone,
If several nodes experience brief outages simultaneously, substantial
> memory pressure can build up on the coordinator.* The coordinator tracks
> how many hints it is currently writing, and if the number increases too
> much, the coordinator refuses writes and throws the *
> *Overlo
