antonio2368

10 ms·

1.
by antonio2368 3y ago
As one of the contributors, I'm always happy to see interest and people using it. Keeper is a really interesting challenge and we're really open to any kind of feedback and thoughts. If you tried it out and have some feedback for
2.
by antonio2368 3y ago
Sadly I never put enough effort into trying out such checks. but your excitement about them gives me motivation to properly try them out.
3.
by antonio2368 3y ago
Just adding on to a nice response from abronan, our internal protocol also does some optimizations when it comes to leader election, e.g. Pre Vote protocol ( https://github.com/eBay/NuRaft/blob/master/docs
4.
by antonio2368 3y ago
Keeper is tested in the same way as ClickHouse. There are Keeper only tests, but we run ClickHouse with Keeper for all of our server tests. For each test we try to use all useful tools for verifying safety and correctness like sanitizers. E
5.
Setting the offset with librdkafka isn't that easy(memgraph.com)
14 points by antonio2368 5y ago|0 comments
6.
by antonio2368 5y ago
I didn't think about the vDSO, and that it's used for `clock_gettime`, so thank you for the information and correction! It's really hard for me to get a feel of what is okay to use, what is the standard way to do something wi
7.
by antonio2368 5y ago
> __rdtsc drift isn’t an AMD bug, it’s by design. Yes, I should've emphasized this. > hey probably just got lucky in that the drift always exceeded the time that elapsed between calls on other cpus And this is also true. :D But I
8.
by antonio2368 5y ago
Sorry if something was explained awkwardly or incorrectly, I'm trying to get a hang of writing posts like this, technical posts that are interesting and fun to read. > If they were using unsigned arithmetic then they would've g
9.
Overflowing timeout(memgraph.com)
52 points by antonio2368 5y ago|9 comments
10.
by antonio2368 6y ago
I agree. There is some basic knowledge on how to achieve the replication, but, in our case, a lot of it was improvised and we're not sure what is the best approach. We tried to minimize the overhead (keep as little information as possi
11.
by antonio2368 6y ago
Well, consistency and availability are the problem here. While enforcing one of the property, you lose on the other. Not sure how would you achieve those opposing properties without introducing huge amount of complexity. In this case, repli