Hello,
I'm founder of a very small startup (a.k.a one man show). Although I did roll
out a lot of critical piece of software to production environment before, I was
never responsible of the database or systems that it depended on. Now, I'm
responsible of those layers as well. Unlike many in this user list I do not
have any scaleability problem, nor huge data to deal with, at least yet, and
hopefully one day very soon. (It will have social aspect as well, but later).
However easy horizontal replication allows me to deploy couple of Riak servers
on a hosting site (to an environment I have no control at all) so that I will
have (relatively) peace of mind if I lose one of the servers somehow. I am
trying to relieve myself from admin work as much as I if I can set up
environment with correct choice of data storage. This is the reason I have been
considering riak seriously, since my admin experience with any traditional
databases are limited I am at the same distance to SQL or NoSQL. I already
developed my solution to almost completion with Riak but now having doubts.
1) What should be the bare minimum number of Riak server to have that security.
(Sky is the limit for redundancy but I will limit myself only to one site,
multiple servers for now).
2) Would anyone in the list recommend setting up Mysql or Postgresql instead a
NoSQL given current small size of my venture. Am I optimizing prematurely.
Again I am looking for security, ease of administration, and a future proof
architecture. I am losing a lot (SQL) but it's ok. I do need transactions here
and there but I mitigated it storing all in one object for atomicity.
3) I read that people in this list mostly store secondary/derivative data or
data that they can load again. Is Riak mature enough to store critical/primary
data? A chain is as strong as its weakest link. So in Riak's case what is that
weakest link? Backend storage choice? bitcask? leveldb? or riak-js? (I need 2i
so my only option is leveldb.) Is Riak (NoSQL in general) for storing (lots of)
secondary data and processing it? I will be storing data for other institutions
whose customers will generate. Although it does not involve money it does mean
monetary transaction.
4) I tried writing 500K objects to both Postgresql and Riak. I used
nodejs/riak-js(http). My experience is that a) Postgresql is storing faster
than Riak b) Riak interface sometimes reporting EADDRINUSE(see below) and some
other errors randomly. Postgresql test did not generate even one error. This
blemished my sense of security towards Riak a bit but it could be library stack
I used. I wonder if this experience unique to me, or are there anyone else who
had similar experience in the list? (This could also be due to node.js, so I am
not sure where exactly to put the blame).
{ [Error: connect EADDRINUSE] code: 'EADDRINUSE', errno: 'EADDRINUSE', syscall:
'connect' }
In brief, I am trying to understand where Riak will likely fail me in
production, if it does.
Sorry for the long post/questions and I appreciate if I could pick your mind.
Thanks,
Gibraltar
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