yes @Michaël =)

michaeldg, Aurelien_LEQUOY: thanks for explaining. How about using binlog with RocksDB for replication - is it not an option?

https://mariadb.com/kb/en/myrocks-and-replication/

says statement-based replication may break consistency, but one could use mixed or row-based replication, no?

it's can be an option like InnoDB, but complicated to manage and in case of crash you can be sure all will be fine, have to deal with delay, crash etc... (more simple to manage it with Spider).

For me I use spider with huge table, and it's non sense for me to keep it on InnoDB. (it's can be if you really want to be safe with your data).

I got an apps for a client who insert 1.3 billion of rows each days, and InnoDB is not usefull for this case. an other one who got a mariadb with 50 Tb (all data inserted in one month, and rolling partitions)

By the way i working on version 4 of Pmacontrol, this version will be able to manage and monitor spider.

and I am pretty sure there is some companies again who use Spider with TokuDB even if this engine not supported anymore.

Aurelien_LEQUOY: sorry I was not suggesting that you switch to innodb. I was asking whether you could use binlog instead of spider/galera for replication. Do you mean that binlog does not work with rocksdb? The kb entries I referenced in my comment above seem to indicate otherwise. Granted the kb could be unclear or outdated but it would be good to know whether this is the case.

Can Elkin chime in this discussion and tell us how well binlog supports rocksdb compared to its support of innodb?