Steven LacerdaTroubleshooting Cassandra performance issuesIs the problem with reads or writes? Table specific or in general? Node specific? These are the types of questions you should ask yourself.5 min read·Sep 9, 2022----
Steven LacerdaJava Heap Space OOM on Eclipse MAT — How to fixI had the hardest time increasing the memory for Eclipse MAT because everyone was pointing to an eclipse.ini file, but that file didn’t…2 min read·Jan 27, 2022----
Steven LacerdaHow to hard set readahead in centos 7.4What I found out is that since the startup scripts no longer run serially, they now run in parallel, adding startup parameters to rc.local…1 min read·Oct 19, 2021----
Steven LacerdaNative transport port and native transport port ssl configurationHere’s the scenario that was a little non-intuitive to me:1 min read·Sep 23, 2021----
Steven LacerdaHow to generate a thread dump in DSE DataStaxWhen high CPU is an issue, sometimes generating a thread dump is the only way to troubleshoot. You need to see which threads are consuming…1 min read·Sep 21, 2021----
Steven LacerdaMetrics Collector for Apache Cassandra (MCAC) filters to limit load timesThe Java jvm for Apache Cassandra and DSE expose hundreds of thousands of different metrics. Trying to pull and store so many metrics is…1 min read·Sep 21, 2021----
Steven LacerdaBYOS (bring your own spark) connecting to Cassandra with TLS/SSLIn order to connect byos Spark to Cassandra using TLS/SSL your shell conf should look something like the following:1 min read·Jun 3, 2021----
Steven LacerdaWhy is my dormant cassandra dc seeing reads?I have seen an issue where a DC that is not supposed to be receiving traffic is still showing reads. Why is that?2 min read·Oct 27, 2020----
Steven LacerdaClearing up tombstones in cassandraTombstones can be created in many different ways, but the most common are:1 min read·Oct 7, 2020----