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Chris Lohfink edited comment on CASSANDRA-16161 at 10/2/20, 2:44 PM: --------------------------------------------------------------------- While tangental to adding a throttle, offheap merkle trees and some of the perf improvements (ie xor impl and more aggressive dereferencing) has helped a lot as well (CASSANDRA-15202). Its a lot better in 4.0 from my experiences. For 3.x though I agree that validation compaction is brutal and this could provide a workaround to keep functioning. Only question I think is if the compaction throughput throttle should be shared vs creating a new one but I am happy with this approach. The code looks straight forward and am +1 to it. not sure about versions though was (Author: clohfink): While tangental to adding a throttle, offheap merkle trees and some of the perf improvements (ie xor impl and more aggressive dereferencing) has helped a lot as well (CASSANDRA-15202). Its a lot better in 4.0 from my experiences. For 3.x though I agree that validation compaction is brutal and this could provide a workaround to keep functioning. Only question I think is if the compaction throughput throttle should be shared vs creating a new one but I am happy with this approach. The code looks straight forward, +1 > Validation Compactions causing Java GC pressure > ----------------------------------------------- > > Key: CASSANDRA-16161 > URL: https://issues.apache.org/jira/browse/CASSANDRA-16161 > Project: Cassandra > Issue Type: Improvement > Reporter: Cameron Zemek > Priority: Normal > Fix For: 3.11.x, 3.11.8 > > Attachments: 16161.patch > > > Validation Compactions are not rate limited which can cause Java GC pressure > and result in spikes in latency. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org