Re: Lost counter updates during Cassandra upgrade 2.2.11 to 3.11.2

Hi, I have faced similar issue while upgrading from 2.1.16 -> 3.11.2 in a 3 node cluster. I have raised jira ticket CASSANDRA-14881 for this issue , but have not got any response on this yet. @Konrad did you get any resolution on this ?

Re: Cluster configuration issue

128GB RAM -> that's a good news, you have plenty of room to increase Cassandra heap size. You can start with, let's say, 12GB in jvm.options or 24GB if you use G1 GC. Let us know if the node starts and if DEBUG/TRACE is useful.  You can also try "strace -f -p ..." command to see if the process

Re: Cluster configuration issue

Hi Roman yes  I modified the .yaml after the issue. The problem  is this, if I restart a node in DC-FIRENZE than it not startup I tried first one node and then the second one with the same results. these are the server resources memory

Re: Cluster configuration issue

Ok so all nodes in Firenze are down. I thought only one was KO.  After a first look at cassandra.yaml the only issue I saw is seeds: the line you commented out was correct (one seed per DC). But I guess you modified it after the issue.  You should fix the swap issue.  Also can you add more heap

Re: Cluster configuration issue

Hi Romain, you are right, is not possible to work in these towns furtunally I live in Pisa :-). I sow the errors and corrected them, except the swap one. The process stuks, I let it run for 1 day without results. This is the output of nodetool status from

Re: Cluster configuration issue

Hi Francesco, it can't work! Milano and Firenze, oh boy, Calcio vs Calcio Storico X-D Ok more seriously, "Updating topology ..." is not a problem. But you have low resources and system misconfiguration:   - Small heap size: 3.867GiB From the logs: "Unable to lock JVM memory (ENOMEM). This can

Cluster configuration issue

Hi to all, I have a problem with distribuited cluster configuration. This is a test environment  Cassandra version is 3.11.3 2 site Milan and Florence 2 servers on each site 1 common "cluster-name" and 2 DC First installation and

Re: Jepsen testing

On Thu, Nov 8, 2018 at 10:42 PM Yuji Ito wrote: > > We are working on Jepsen testing for Cassandra. > https://github.com/scalar-labs/jepsen/tree/cassandra/cassandra > > As you may know, Jepsen is a framework for distributed systems > verification. > It can inject network failure and so on and