Field notes on Apache Cassandra in production by Paul Chandler.https://www.redshots.com/https://www.redshots.com/posts/cassandra-twcs-must-have-ttls/https://www.redshots.com/posts/cassandra-twcs-must-have-ttls/Time Window Compaction Strategy is powerful for time-series data — but only if you follow the rules. Here's what happens when you don't attach a TTL.Mon, 03 Jun 2019 00:00:00 GMThttps://www.redshots.com/posts/moving-cassandra-clusters-without-downtime-part-1/https://www.redshots.com/posts/moving-cassandra-clusters-without-downtime-part-1/Setting up a new datacenter and migrating Rackspace clusters to Google Cloud, zero downtime. Part 1 of 3.Fri, 24 May 2019 00:00:00 GMThttps://www.redshots.com/posts/moving-cassandra-clusters-without-downtime-part-2/https://www.redshots.com/posts/moving-cassandra-clusters-without-downtime-part-2/Decommissioning the original Rackspace datacenter after successfully migrating data to Google Cloud. Part 2 of 3.Fri, 24 May 2019 00:00:00 GMThttps://www.redshots.com/posts/moving-cassandra-clusters-without-downtime-part-3/https://www.redshots.com/posts/moving-cassandra-clusters-without-downtime-part-3/Things that can go wrong during a zero-downtime Cassandra migration — and how to mitigate and recover. Part 3 of 3.Fri, 24 May 2019 00:00:00 GMThttps://www.redshots.com/posts/finding-rogue-cassandra-queries/https://www.redshots.com/posts/finding-rogue-cassandra-queries/Using ngrep and Wireshark to catch queries running at the wrong consistency level — proving it to the development team.Sat, 20 Apr 2019 00:00:00 GMThttps://www.redshots.com/posts/cassandra-counting-without-using-counters/https://www.redshots.com/posts/cassandra-counting-without-using-counters/Why count(*) on large Cassandra partitions is hurting your cluster, and a smarter pattern using timeuuid and lightweight transactions.Mon, 01 Apr 2019 00:00:00 GMThttps://www.redshots.com/posts/who-is-connecting-to-a-cassandra-cluster/https://www.redshots.com/posts/who-is-connecting-to-a-cassandra-cluster/Tracing unexpected cross-DC connections using ngrep on port 9042 — finding which clients are ignoring local consistency.Tue, 04 Sep 2018 00:00:00 GMT