Hi, Can somebody help with reviewing of https://issues.apache.org/jira/browse/CASSANDRA-20132.
When tombstones are expired they become almost invisible from a monitoring point view: you do not see them in metrics and tracing except a latency impact. I have observed such cases in production when compaction did not remove expired tombstones fast enough and in some cases we got a lot of them for a partition, with a bad latency as a result. It was not that easy to find that you have them (they are visible now only in file system calls or via sstabledump analysis). The improvement adds visibility here. Regards, Dmitry
