jjirsa

12 ms·

61.
by jjirsa 7y ago
An easy example of this is the implementation in Apache Cassandra In Cassandra, we use MTs during active anti-entropy repair, where we have N replicas of some data and want to make sure they’re in sync The repair command will repair a range
62.
by jjirsa 7y ago
Alex’s book: https://www.databass.dev/
63.
by jjirsa 7y ago
Git history suggests it’s been around for a year. It’s not super interesting really, clearly there’s a poke here that someone felt this feature was worth a press release and their more established competitor just “meh, here”’d them. Also, c
64.
by jjirsa 7y ago
Note that those three cities are also quite cold in winter - connected shopping matters when it’s -30 in January. Montreal’s underground city/malls are literal lifesavers, not just shopping. Matters much less in moderate areas.
65.
by jjirsa 7y ago
Time for widespread adoption of mobile EDR.
66.
by jjirsa 7y ago
Oracle and IBM are better known for killing things they acquire than enhancing them. The money doesn't outweigh the executive overhead. And it's not that vmware is bad, it's that they're big, enterprise'y, and slow.
67.
by jjirsa 7y ago
When I think of business agility and ability to keep up with a fast moving industry, I think Dell/VMWare.
68.
by jjirsa 7y ago
The github “is this dead” epitomizes rethinkdb to me: https://github.com/rethinkdb/rethinkdb/issues/6747#issuecomm... “I wanted a task queue and wanted to build it on X” Doesn’t matter that a job queue makes
69.
by jjirsa 7y ago
I had a video site in the same era ( https://web.archive.org/web/20050701082257/http://www.vobbo.... ) and it was 100% soft porn and piracy, so much so that I shut it down because I couldn’t justify the ti
70.
by jjirsa 7y ago
Note that the asf infra is - at best - insufficient. Cassandra relied heavily on donated Jenkins worker VMs for all tests because the asf donated VMs couldn’t run the test suites. Recently we started moving tests to circleci... because it w
71.
by jjirsa 8y ago
Really? You can’t figure out why someone might use a Microsoft hosted db over one at google or one they’d have to run themselves? Azure’s growth rate is amazing. There’s a ton of adoption there that doesn’t have access to spanner, or maybe
72.
by jjirsa 8y ago
Hey CosmosDB team in the comments: Building distributed databases at scale is hard af, few people know what it’s like to run hundreds of thousands of databases. Don’t be discouraged by random negative posts, remember you’re doing something
73.
by jjirsa 8y ago
The challenges app helps with that: Challenges - Compete, Get Fit by FitNow https://itunes.apple.com/us/app/challenges-compete-get-fit/i...
74.
by jjirsa 8y ago
> I wonder if it's as simple as this The answer to questions of this form is almost always “no”
75.
by jjirsa 8y ago
Gaming was two jobs ago. It’s apache Cassandra, and I work for a large tech company.
76.
by jjirsa 8y ago
A few million DAU is not at scale. A few million concurrent active users might be, but really, “at scale” has no meaning other than “we got to the point where shit gets hard”. And that point is different for every app. I remember watching a
77.
by jjirsa 8y ago
Started here: https://lists.apache.org/thread.html/15d1b4b5bb8a24e41d51db5... Continues here: https://issues.apache.org/jira/browse/CASSANDRA-14448
78.
by jjirsa 8y ago
fwiw, work being done on Cassandra to speed this (cas/lwt) up SIGNIFICANTLY
79.
by jjirsa 8y ago
I love seeing successful Cassandra shops ( https://monzo.com/blog/2016/11/30/laying-the-foundation-for-... )
80.
Finding Bugs in Cassandra's Internals with Property-Based Testing(cassandra.apache.org)
4 points by jjirsa 8y ago|0 comments
81.
by jjirsa 8y ago
“Or any database”, except it’s really driven by postgres’ process model, and definitely doesn’t apply to most distributed databases
82.
Testing Cassandra 4.0: replay, fuzz, property, fault injection(cassandra.apache.org)
4 points by jjirsa 8y ago|1 comments
83.
by jjirsa 8y ago
(◔_◔)
84.
by jjirsa 8y ago
Cool press release
85.
by jjirsa 8y ago
6.2TB is single machine scale The company here is doing petabytes of data and millions of ops per second. That’s scale. We should be clear about what “at scale” means, and 6.2TB is not.
86.
Cassandra 4.0 to support native audit logging for compliance use cases(issues.apache.org)
3 points by jjirsa 8y ago|0 comments
87.
by jjirsa 8y ago
The answer will depend primarily on how you expect to query it. Cassandra can do many orders of magnitude more than 1B, but would limit you in your query patterns.
88.
by jjirsa 9y ago
Counter-point: He took clearly incredible people and introduced them to his audience, and in doing so, granted them a shred of legitimacy when they deserved none. His show caused vulnerable people to become entrenched in nonsensical conspir
89.
by jjirsa 9y ago
Should they build their own planes, too? Just hire some engineers and make it happen, right? Governments outsource because the best people in various industries aren't working for the government (for lots of different reasons).
90.
(2013) The cardinal rules of DBMS development(dbms2.com)
1 points by jjirsa 9y ago|0 comments

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