Converting from Apache Cassandra 2.2.6 to 3.x

We are converting our product from Apache Cassandra 2.2.6 to 3.x. What issues may we run into when we convert? [Ericsson] WILLIAM L. BOUTIN Engineer IV - Sftwr BMDA PADB DSE DU CC NGEE Ericsson 1 Ericsson Drive, US PI06 1.S747 Piscataway, NJ, 08854, USA Phone (913)

RE: Cassandra 2.2.6 Fails to Boot Up correctly - JNA Class

: Jeff Jirsa [mailto:jji...@apache.org] Sent: Wednesday, July 19, 2017 11:47 PM To: user@cassandra.apache.org Subject: Re: Cassandra 2.2.6 Fails to Boot Up correctly - JNA Class On 2017-07-19 10:41 (-0700), William Boutin <william.bou...@ericsson.com> wrote: > We are running apache-

Cassandra 2.2.6 Fails to Boot Up correctly - JNA Class

We are running apache-cassandra-2.2.6 for months with no JNA startup issues. Recently, we have updated some of our cassandra machines and we ran into a Cassandra startup issue with JNA. See the stack trace 1 below. Question 1: Our Cassandra package contains jna-4.0.0.jar in the

Strange Cassandra startup error

I've been running apache-cassandra 2.2.6 for a few years. Recently when I configured a new cassandra node and started Cassandra via "service start cassandra" on LINUX 6.5, I got the following exception. After cleaning out my data_file_directories I was able to successfully restart. Any ideas?

Cassandra and LINUX CPU Context Switches

I've noticed that my apache-cassandra 2.2.6 process is consistently performing CPU Context Switches above 10,000 per second. Is this to be expected or should I be looking into ways to lower the number of context switches done on my Cassandra cluster? Thanks in advance.

Making a Cassandra node cluster unique

Someone on my team asked me a question that I could not find an easy answer and I was hoping someone could answer for me. When we configure Cassandra, we use the Cluster Name, Data Center, and Rack to define the group of Cassandra nodes involved in holding our keyspace records. If a second set