[Info-vax] RDB Replication ...

[Stephen Hoffman]

On 2022-06-18 18:22:05 +0000, El SysMan said:

> Thanks to all for the references, will study. I looking for theoretical 
> materials, but open source project also is good.
> 
> Primary interest is replication a DB from root/master node (-s)   in a 
> P2P network over a swarms of peers.
> It's may be SQLITE or MDBX or something other or good old RMS, no matter.

Hadoop, ZooKeeper, HBase, Hive, Kafka and some other related Apache 
projects might be of interest, then.

And my usual pointers to Paxos, etc.

https://www.the-paper-trail.org/post/2009-02-03-consensus-protocols-paxos/
https://www.the-paper-trail.org/post/2014-08-09-distributed-systems-theory-for-the-distributed-systems-engineer/ 

https://fpaxos.github.io

There's DECdtm on OpenVMS too, not that that is very widely used.

> An area or application is the blockchain.

Applications needing and using blockchains—distributed append-only 
ledgers—are fairly rare.

Outside of usage such as scams, ransomware payments, and illegal 
financial transfers, of course. Flaws found in smart contracts have 
been immensely profitable for some, too.

Blockchain performance also tends to be an issue, as compared with the 
available performance of non-distributed-ledger-based database schemes.

Blockchains are among the worst-performing databases available too, and 
those using proof-of-work schemes are problematic for other reasons.



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