I’m not having a productive week, part of the reason being a hard drive crash that took out early drafts of what were to be last weekend’s blog posts. Now I’m operating from a laptop, rather than my preferred dual-monitor set-up. So please pardon me if I’m concise even by comparison to my usual standards.
- My recent posts based on surveillance news have been partly superseded by – well, by more news. Some of that news, along with some good discussion, may be found in the comment threads.
- The same goes for my recent Hadoop posts.
- The replay for my recent webinar on real-time analytics is now available. My part ran <25 minutes.
- One of my numerous clients using or considering a “real-time analytics” positioning is Sqrrl, the company behind the NoSQL DBMS Accumulo. Last month, Derrick Harris reported on a remarkable Accumulo success story – multiple US intelligence instances managing 10s of petabytes each, and supporting a variety of analytic (I think mainly query/visualization) approaches.
- Several sources have told me that MemSQL’s Zynga sale is (in part) for Membase replacement. This is noteworthy because Zynga was the original pay-for-some-of-the-development Membase customer.
- More generally, the buzz out of Couchbase is distressing. Ex-employees berate the place; job-seekers check around and then decide not to go there; rivals tell me of resumes coming out in droves. Yes, there’s always some of that, even at obviously prospering companies, but this feels like more than the inevitable low-level buzz one hears anywhere.
- I think the predictive modeling state of the art has become:
- Cluster in some way.
- Model separately on each cluster.
- And if you still want to do something that looks like a regression – linear or otherwise – then you might want to use a tool that lets you shovel training data in WITHOUT a whole lot of preparation* and receive a model back out. Even if you don’t accept that as your final model, it can at least be a great guide to feature selection (in the statistical sense of the phrase) and the like.
- Champion/challenger model testing is also a good idea, at least if you’re in some kind of personalization/recommendation space, and have enough traffic to test like that.**
- Most companies have significant turnover after being acquired, perhaps after a “golden handcuff” period. Vertica is no longer an exception.
- Speaking of my clients at HP Vertica – they’ve done a questionable job of communicating that they’re willing to price their product quite reasonably. (But at least they allowed me to write about $2K/terabyte for hardware/software combined.)
- I’m hearing a little more Amazon Redshift buzz than I expected to. Just a little.
- StreamBase was bought by TIBCO. The rumor says $40 million.
*Basic and unavoidable ETL (Extract/Transform/Load) of course excepted.
**I could call that ABC (Always Be Comparing) or ABT (Always Be Testing), but they each sound like – well, like The Glove and the Lions.
The third of my three MySQL-oriented clients I alluded to yesterday is MemSQL. When I wrote about MemSQL last June, the product was an in-memory single-server MySQL workalike. Now scale-out has been added, with general availability today.
MemSQL’s flagship reference is Zynga, across 100s of servers. Beyond that, the company claims (to quote a late draft of the press release):
Enterprises are already using distributed MemSQL in production for operational analytics, network security, real-time recommendations, and risk management.
All four of those use cases fit MemSQL’s positioning in “real-time analytics”. Besides Zynga, MemSQL cites penetration into traditional low-latency markets — financial services (various subsectors) and ad-tech.
Highlights of MemSQL’s new distributed architecture start: Read more
|Categories: Clustering, Database compression, Emulation, transparency, portability, Games and virtual worlds, Investment research and trading, Log analysis, MemSQL, MySQL, NewSQL, Transparent sharding, Zynga||5 Comments|
I checked in with James Phillips for a Couchbase update, and I understand better what’s going on. In particular:
- Give or take minor tweaks, what I wrote in my August, 2010 Couchbase updates still applies.
- Couchbase now and for the foreseeable future has one product line, called Couchbase.
- Couchbase 2.0, the first version of Couchbase (the product) to use CouchDB for persistence, has slipped …
- … because more parts of CouchDB had to be rewritten for performance than Couchbase (the company) had hoped.
- Think mid-year or so for the release of Couchbase 2.0, hopefully sooner.
- In connection with the need to rewrite parts of CouchDB, Couchbase has:
- Gotten out of the single-server CouchDB business.
- Donated its proprietary single-sever CouchDB intellectual property to the Apache Foundation.
- The 150ish new customers in 2011 Couchbase brags about are real, subscription customers.
- Couchbase has 60ish people, headed to >100 over the next few months.
|Categories: Basho and Riak, Cassandra, Couchbase, CouchDB, DataStax, Market share and customer counts, MongoDB and 10gen, NoSQL, Open source, Parallelization, Web analytics, Zynga||6 Comments|
Mike Driscoll and his Metamarkets colleagues organized a bit of a bash Thursday night. Among the many folks I chatted with were Ken Rudin of Zynga, Sam Shah of LinkedIn, and D. J. Patil, late of LinkedIn. I now know more about analytic data management at Zynga and LinkedIn, plus some bonus stuff on LinkedIn’s People You May Know application.
It’s blindingly obvious that Zynga is one of Vertica’s petabyte-scale customers, given that Zynga sends 5 TB/day of data into Vertica, and keeps that data for about a year. (Zynga may retain even more data going forward; in particular, Zynga regrets ever having thrown out the first month of data for any game it’s tried to launch.) This is game actions, for the most part, rather than log files; true logs generally go into Splunk.
I don’t know whether the missing data is completely thrown away, or just stashed on inaccessible tapes somewhere.
I found two aspects of the Zynga story particularly interesting. First, those 5 TB/day are going straight into Vertica (from, I presume, memcached/Membase/Couchbase), as Zynga decided that sending the data to some kind of log first was more trouble than it’s worth. Second, there’s Zynga’s approach to analytic database design. Highlights of that include: Read more
|Categories: Aster Data, Couchbase, Data models and architecture, Games and virtual worlds, Greenplum, Hadoop, Petabyte-scale data management, Specific users, Vertica Systems, Zynga||27 Comments|
I was asked to do a magazine article on NoSQL, where by “NoSQL” is meant “whatever they talk about at NoSQL conferences.” By now the number of publications planning to run the article is up to 2, the deadline is next week and, crucially, it has been agreed that I may talk about HVSP in general, NoSQL and SQL alike.
It also is understood that, realistically, I can’t be expected to know and mention the very latest news for all the many products in the categories. Even so, I think this would be fine time to check just where NoSQL and HVSP adoption stand. Here is most of what I know, or links to same; it would be great if you guys would contribute additional data in the comment thread.
In the NoSQL area: Read more
|Categories: Akiban, Cassandra, Clustering, Clustrix, Couchbase, dbShards and CodeFutures, Facebook, Groovy Corporation, NewSQL, NoSQL, OLTP, Parallelization, ScaleDB, Specific users, VoltDB and H-Store, Zynga||17 Comments|
Last month, Vertica’s CEO Ralph Breslauer quit,* and Vertica made it sound like there would be a new CEO late in April. And indeed, as of April 29, there was. He’s a guy I’ve never heard of before named Chris Lynch, apparently quite the sales machine builder. The most substance I’ve found is a pair of Mass High Tech articles — the latter exceedingly typo-ridden — to the general effect that:
- Vertica plans to build a massive, world-conquering sales force.
- If Vertica dips back into negative cash flow to do that and has to raise more venture capital, so be it.
- “Triple-digit” revenue growth is expected for this year.