Re: Regression in cqlsh's "COPY … TO STDOUT" in 4.1?

2023-03-21 Thread Gustav Broberg
On Sat, Mar 11, 2023 at 11:31 PM Gustav Broberg wrote: > Hi, > > Did the COPY command with stdout as output stop working in cqlsh as of > Cassandra 4.1? Or is this some issue with the official Docker image? > [...] > I was a bit surprised that I couldn't find anything in the issue tracker > ab

Re: Nodetool command to pre-load the chunk cache

2023-03-21 Thread Jeff Jirsa
We serialize the other caches to disk to avoid cold-start problems, I don't see why we couldn't also serialize the chunk cache? Seems worth a JIRA to me. Until then, you can probably use the dynamic snitch (badness + severity) to route around newly started hosts. I'm actually pretty surprised the

Re: Nodetool command to pre-load the chunk cache

2023-03-21 Thread Bowen Song via user
It sounds like a bad policy, and you should push for that to be changed. Failing that, you have some options: 1. Use faster disks. This improves cold start performance, without relying on the caches. 2. Rely on row cache instead. It can be saved periodically and loaded at startup time. 3.

Nodetool command to pre-load the chunk cache

2023-03-21 Thread Carlos Diaz
Hi Team, We are heavy users of Cassandra at a pretty big bank. Security measures require us to constantly refresh our C* nodes every x number of days. We normally do this in a rolling fashion, taking one node down at a time and then refreshing it with a new instance. This process has been worki

[RELEASE] Apache Cassandra 4.1.1 released

2023-03-21 Thread Miklosovic, Stefan
The Cassandra team is pleased to announce the release of Apache Cassandra version 4.1.1. Apache Cassandra is a fully distributed database. It is the right choice when you need scalability and high availability without compromising performance. http://cassandra.apache.org/ Downloads of source

Query on DataStax CPP Driver

2023-03-21 Thread Deepti Sharma S via user
Hello Team, We have multithread application where we are using DataStax CPP Driver version (2.16.2) to connect with apache Cassandra Server version(2.2.8). When IO thread has been set to 5 using API cass_cluster_set_num_threads_io() . We have observed that while inserting a heavy data we are g