bonobocop

7 ms·

1.
by bonobocop 11mo ago
The MIT course for Raft (with the lectures on YouTube) was great to learn for me: http://nil.lcs.mit.edu/6.824/2020/labs/lab-raft.html
2.
by bonobocop 11mo ago
The durability and transformation reasons are definitely more compelling, but the article doesn’t mention those reasons. It’s mainly focused on the insert batching which is why I was drawing attention to async_insert. I think it’s worth hig
3.
by bonobocop 11mo ago
Sure, but the article doesn’t talk about that, it seemed to be focused on CH alone, in which case async insert is much fewer technical tokens. If you need to ensure that you have super durable writes, you can consider, but I really think it
4.
by bonobocop 11mo ago
Why add RedPanda/Kafka over using async insert? https://clickhouse.com/docs/optimize/asynchronous-inserts It’s recommended in the docs over the Buffer table, and is pretty much invisible to the end user. At C
5.
by bonobocop 1y ago
Yeah, handles all the OTel signals
6.
by bonobocop 1y ago
Not OP, but to me, this reads fairly similar to how ClickHouse can be set up, with Bloom filters, MinMax indexes, etc. A way to “handle” partial substrings is to break up your input data into tokens (like substrings split in spaces or dashe
7.
by bonobocop 1y ago
Quite like Cloudprober for this tbh: https://cloudprober.org/docs/how-to/alerting/ Easy to configure, easy to extend with Go, and slots in to alerting.
8.
by bonobocop 1y ago
If you choose not to travel, then you are eligible for a refund, rather than Delay Repay: https://www.nationalrail.co.uk/help-and-assistance/compensat... There’s differences in consumer rights effectively between a re
9.
by bonobocop 1y ago
Claiming delay compensation if you don’t have intent to travel is the fraud part. Easiest example is if you have a season ticket, but you have the day off. You weren’t going to take the train to work that day, so no intent to travel. If you
10.
by bonobocop 1y ago
I don’t think it’s fraud on the DR side if you actually take the trains and intend to travel. If you didn’t actually intend to travel, then claiming DR is fraud.
11.
by bonobocop 1y ago
The DR system doesn’t look at ticket scans alone. It also builds a profile per customer based on a number data points. It will flag up quite quickly if you are “sniping” delayed trains at different times.
12.
by bonobocop 2y ago
A small question on the schema, I noticed that you have only “_now” as the Order By (so should just use that for the primary key). Do you expect any cross tenant queries? Just my feeling would be that I’d add the tenant ID before the timest
13.
by bonobocop 2y ago
Thoughts on stuff like ClickHouse with JSON column support? Less upfront knowledge of columns needed.
14.
by bonobocop 4y ago
https://docs.aws.amazon.com/organizations/latest/APIReferenc... Now has an API (with some caveats)
15.
by bonobocop 4y ago
I think some of the best technical writing I've enjoyed is: https://aws.amazon.com/builders-library/ Clear and concise articles that really dig into some of the hard technical problems with working at scale. Has h
16.
by bonobocop 5y ago
TBH, as the Dockerfile based Lambda layers have a 20GB file size limit, I'm not sure the size matters as much. It's certainly easier to figure out what's going on in a smaller container though! I've had to debug some nas
17.
by bonobocop 5y ago
Apparently Python rules the roost for Lambda: https://mobile.twitter.com/julian_wood/status/14427755423742... But NodeJS is second!
18.
by bonobocop 5y ago
I used BPF (using _both_ of Brendan Gregg's recent books!) on our Jenkins builds recently to figure out why `TRUNCATE` statements were taking longer than I expected. The underlying cause was that `ext4` filesystem was journalled and th