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Jonathan Ellis commented on CASSANDRA-9318: ------------------------------------------- We see lots of production deployments that log occasional messages about load shedding being triggered, so while it's not perfect I am comfortable that it does work as designed for temporary spikes. Again -- and I apologize if this was already clear -- I'm proposing we *stop requests before adding them to the EM in the first place*, not more aggressive pruning of the EM. > Bound the number of in-flight requests at the coordinator > --------------------------------------------------------- > > Key: CASSANDRA-9318 > URL: https://issues.apache.org/jira/browse/CASSANDRA-9318 > Project: Cassandra > Issue Type: Improvement > Reporter: Ariel Weisberg > Assignee: Ariel Weisberg > Fix For: 2.1.x > > > It's possible to somewhat bound the amount of load accepted into the cluster > by bounding the number of in-flight requests and request bytes. > An implementation might do something like track the number of outstanding > bytes and requests and if it reaches a high watermark disable read on client > connections until it goes back below some low watermark. > Need to make sure that disabling read on the client connection won't > introduce other issues. -- This message was sent by Atlassian JIRA (v6.3.4#6332)