tombstones threshold warning

2019-02-16 Thread Ayub M
In the logs I see tombstone warning threshold. Read 411 live rows and 1644 tombstone cells for query SELECT * FROM ks.tbl WHERE key = XYZ LIMIT 5000 (see tombstone_warn_threshold) This is Cassandra 3.11.3, I see there are 2 sstables for this table and the partition XYZ exists in only one file.

Re: Cassandra vnodes Streaming Reliability Calculator

2019-02-16 Thread James Briggs
Hi Ken. 1) Thanks for the great link. Ironically it was written by Netflix, who continued to use single tokenfor years after vnodes were released so that they could continue touse Priam and their other tools dependent on single token. (I was in theearly Cassandra group there.) 2) My tool

RE: Cassandra vnodes Streaming Reliability Calculator

2019-02-16 Thread Kenneth Brotman
Hi James, Thanks for doing that. Very interesting. I haven’t had a chance to check the math. Did you look at this white paper by Lynch and Snyder called Cassandra Availability with Virtual Nodes: