roaring
ld
roaring | ld | |
---|---|---|
5 | 6 | |
2,349 | 20 | |
0.9% | - | |
7.6 | 0.0 | |
14 days ago | over 1 year ago | |
Go | Go | |
Apache License 2.0 | The Unlicense |
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roaring
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I have some questions about defining a series of bits in Golang
For (3), and if you’re interested in checking if specific bits are set or not, take a look at https://github.com/bits-and-blooms/bitset and https://github.com/RoaringBitmap/roaring.
- Bitmasks - how and why to use?
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Skipfilter
Each topic has a roaring bitmap. Each bit corresponds to a subscriber in the skip list. For each topic, head and tail cursors are also maintained to ensure that newly added subscriptions are always tested and deleted subscriptions are always evicted. Roaring bitmaps are compressed and discontinuous so memory usage again remains bounded as subscribers come and go.
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Bit shifting blew my mind
Definitely take a look at a roaring bitmap. https://github.com/RoaringBitmap/roaring
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Protocol buffers database, a Key-Value database on the wire
Roaring bitmaps + btrees are a rock solid indexing approach. Alternatively, bleve has a lot out of the box but that's introducing a new datastore, basically.
ld
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Using a httputil reverse proxy to host gRPC REST & static web content (eg HTML) on a single port
I slammed together a database based on this wire protocol feature: MikkelHJuul/ld the database serve bytes, the client can deserialize those by replacing the bytes with a message (in the proto-file)
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A dead simple Key-value Storage API
Hell, I even built a kv-database myself that I just announced some weeks ago, based on badgerDB: ld. It's API is the api I would say qualifies as a simple actual kv database api. KeyRange { String prefix, from, to, pattern (pattern may be a bit over the top) } The database is value agnostic
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Protobuf Database: ld & ld-client: interactive client
[ld:0.1.3](https://github.com/MikkelHJuul/ld) is out
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ld - 0.1.1: protocol buffers database
Just after pushing 'Post'; I thought to my self: I haven't done nearly enough testing! This is release [0.1.1](https://github.com/MikkelHJuul/ld/pull/2) focusing on testing, I fixed some bugfixes with the `Iterator` in `impl/iterator.go`, but mostly I added 50-some tests spanning 900 lines of test code.
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Protocol buffers database, a Key-Value database on the wire
I got my database into a release candidate: ld - a protocol buffers database
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gRPC bytes
The obvious use case is the one of a key value database: I have an older personal project I wanted to do this for, ld (yes I know there is a c linker called ld) basically the client implements their proto file saving whatever they wanted at a given key and the database never touch the bytes, it servers back those bytes which should be re-serialisable to the same object. (The project is semi abandoned, I hope to use badger or boltdb to implement it some time)
What are some alternatives?
skiplist - skiplist for golang
protoc-gen-star - protoc plugin library for efficient proto-based code generation
boomfilters - Probabilistic data structures for processing continuous, unbounded streams.
social - social network in GRPC, Go, mysql, and vuejs,
bit - Bitset data structure
sled - the champagne of beta embedded databases
bitset - Go package implementing bitsets
Jet - A key-value db api with multiple storage engines and key generation
hyperloglog - HyperLogLog with lots of sugar (Sparse, LogLog-Beta bias correction and TailCut space reduction) brought to you by Axiom
s2geometry - Computational geometry and spatial indexing on the sphere
golang-set - A simple, battle-tested and generic set type for the Go language. Trusted by Docker, 1Password, Ethereum and Hashicorp.
S2 geometry - S2 geometry library in Go