Viewing profile — chaotic-good

I don't see any mentions of p99 latency in the benchmark results. Pushing gigabytes per second is not that difficult on modern hardware. Doing so with reasonable latency is what's …

I tend to agree with this. The code tend to be loaded with primitives that express ownership semantics or error handling. Every time something changes (for instance, you want not j…

I'm not asking anything on behalf of any company and just genuinely curious (and I don't think that we're competitors, both systems are designed for totally different niches). I'm …

> Why replicate data at the VM/disk level when those disks are already provided as a fully redundant system? That's easy. EBS and similar solutions comes with the price. They're ve…

It could be easy to operate when everything is fine but what's about incidents? If I understand correctly, there is a metadata database (BTW, is it multi-AZ as well?). But what if …

The disk thrashes because of fsyncs (Kafka doesn't perform any fsync's). But you can provision more disk space to mitigate this problem. And it looks like the test was set up this …

You have to provision you disk space accordingly. NVMe needs some free space to have good performance. In this case I think that in Redpanda benchmarks the disk space was available…

Modern TSDB is expected to support tags. This means that every series will have a unique set of tag-value pairs associated with it. E.g. 'host=Foo OS=CentOS arch=amd64 ssdmodel=Int…

90% compression on time series is not viable unless you have some very specific dataset.

'metric_name text' is actually a tag-value list. Many TSDB's allows you to match data by tag. Each tag should be represented by a column in your example. Single table design will b…

They can't handle high cardinality. Imagine having millions of columns in the column-oriented database (70% of those columns are updated every second). Imagine that you have to add…

> Successful, popular concurrent platforms like Erlang/OTP, Nginx, and node.js, eschew threads in favor a single-threaded, async/non-blocking code model. All these platforms have s…

Yes, it was possible for a long time.

It's not a TSDB. It doesn't support ingestion without some fancy batching. The insert rate will be too limited without that. MergeTree was designed for batch processing, not for re…

JFK that the link doesn't work: the Russian government is going to create national big data operator. All internet companies must store their information there. They can use this i…

What do you mean by gloss?

If I understand this right, with Intel's Optane you will eventually need to write everything to HDD because data collection happens at steady pace and the cache size is limited.

>> Maybe I'm getting this all wrong, but aren't the leaves also representing chunked data, which is compressed. Leaf nodes contain data from one series (this data should be read to…