Re: single instance failover

2016-11-22 Thread Vladimir Yudovin
Sorry, probably I didn't catch your setup fully. Would you like to use shared data folder for both nodes, assuming you never run two Cassandra process simultaneously? Well, I guess it's possible. Running two Cassandra instances on the same data folder together won't work, so prevent this situ

Re: single instance failover

2016-11-22 Thread Lou DeGenaro
Yes, change rpc_address to node B. Immutability aside, if Node A Cassandra and Node B Cassandra are using the same directory on the same shared filesystem, let's call it /cassandra/state/database, would that not be a problem? Or said differently, does not Node A need its own writable place /cassa

Re: single instance failover

2016-11-22 Thread Vladimir Yudovin
Hi Lou, do you mean you set rpc_address (or broadcast_rpc_address) to Node_B_IP on second machine? >there would be potential database corruption, no? Well, so SSTables are immutable, it can lead to unpredictable behavior, I guess. I don't believe anybody tested such setup before. >Is t