Nodes becoming unresponsive intermediately (Gossip stage pending)

Hi, We have 11/11 node cluster running Cassandra 2.1.15 version. We are observing that 3 nodes from each data center are becoming unresponsive for short period of time. This behavior is happening only in 6 nodes (i.e. 3 from each data center) and we are seeing a lot of Gossip stage has pending

Re: Cassandra Authentication

Thanks Ben, RF 3 isn't sufficient for system_auth? as we are using 3 RF for other production KS, do you see any challenges? On Wed, Jan 18, 2017 at 2:39 PM, Ben Bromhead wrote: > We have a process that syncs and manages RF==N and we also control and > manage users,

Re: Cassandra Authentication

We have a process that syncs and manages RF==N and we also control and manage users, however that entails it's own set of challenges and maintenance. For most users I would suggest 3 < RF <=5 is sufficient. Also make sure you don't use the user "Cassandra" in production as authentication queries

Re: Cassandra Authentication

the volume of data is pretty low + you still want to be able to authenticate even if you have more nodes down than the RF for other keyspaces. Essentially you don't want auth to be the thing that stops you serving requests. On Wed, 18 Jan 2017 at 14:57 Jai Bheemsen Rao Dhanwada <

Re: Cassandra Authentication

Thank you On Wed, Jan 18, 2017 at 10:10 PM, Ben Bromhead wrote: > the volume of data is pretty low + you still want to be able to > authenticate even if you have more nodes down than the RF for other > keyspaces. Essentially you don't want auth to be the thing that stops

ApacheCon CFP closing soon (11 February)

Hello, fellow Apache enthusiast. Thanks for your participation, and interest in, the projects of the Apache Software Foundation. I wanted to remind you that the Call For Papers (CFP) for ApacheCon North America, and Apache: Big Data North America, closes in less than a month. If you've been

Cassandra Authentication

Hello, When enabling Authentication on cassandra, is it required to set the RF same as the no.of nodes( https://docs.datastax.com/en/cql/3.1/cql/cql_using/update_ks_rf_t.html)? or can I live with RF of 3 in each DC (other KS are using 3) If it has to be equal to the number of nodes then, every