ydb
tidb
| ydb | tidb | |
|---|---|---|
| 10 | 27 | |
| 3,422 | 36,169 | |
| 2.0% | 0.5% | |
| 10.0 | 10.0 | |
| 3 days ago | 2 days ago | |
| C++ | Go | |
| GNU General Public License v3.0 or later | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ydb
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Erasure Coding versus Tail Latency
There https://ydb.tech/ open source db that uses erasure coding for replication in single zone/region.
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YDB – an open source distributed SQL database
This is a good source for features that may/may not already be existing.
https://github.com/ydb-platform/ydb/blob/main/ROADMAP.md
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Sqllogictest Illustrated
[YDB] implemented by Python
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Gitlab is splitting their main and ci Postgres databases
https://ydb.tech/ which each has promise.
There is definitely lots of progress to make in this space. From what I have seen they are all significantly slower on a single node and are not as battle-hardened. But I think with time we will have a few really nice options to pick from.
- Ask HN: Free and open source distributed database written in C++ or C
- YDB – distributed DBMS that combines HA, scalability, strict consistency, ACID
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Yandex Open-Sources YDB
I found a lot of mentions of "Postgresql" in repository: https://github.com/ydb-platform/ydb/search?q=postgresql
Is it build on top of PG ?
tidb
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A MySQL compatible database engine written in pure Go
tidb has been around for a while, it is distributed, written in Go and Rust, and MySQL compatible. https://github.com/pingcap/tidb
Somewhat relatedly, StarRocks is also MySQL compatible, written in Java and C++, but it's tackling OLAP use-cases. https://github.com/StarRocks/starrocks
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Show HN: GitHub Organization Analytics
It's MySQL-Compatible database for scale and real-time analytics https://github.com/pingcap/tidb
- TiDB: An open-source distributed MySQL compatible database
- TiDB: Open-source, cloud-native, distributed, MySQL compatible database
- Embed hard-coded SQL into binaries for a cleaner look!
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Ask HN: Who is hiring? (January 2023)
PingCAP | https://www.pingcap.com | Database Engineer, Product Manager, Developer Advocate and more | Remote in California | Full-time
We work on a MySQL compatible distributed database called TiDB https://github.com/pingcap/tidb/ and key-value store called TiKV.
TiDB is written in Go and TiKV is written in Rust.
More roles and locations are available on https://www.pingcap.com/careers/
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Banco de dados puramente com go
Pesquise por CockroachDB ou TiDB
- MySQL-mimic - Python implementation of the MySQL server wire protocol.
- Apache Pegasus – A a distributed key-value storage system
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What is your experience with mixed workload (OLTP and OLAP) databases?
OLTP usually comes with high throughput of transactions, which means usually write(e.g., IUD - insert, update, delete) to read (e.g., select) ratio is above 4 or 5 or even higher. There are some good benchmarks to test OLTP workload like TPC-C (https://www.tpc.org/tpcc/), and some benchmarks to test OLAP workload like TPC-H (https://www.tpc.org/tpch/). For mixed or hybrid OLTP and OLAP (it's called HTAP, see this blog for some background https://en.pingcap.com/blog/the-beauty-of-htap-tidb-and-allo...), TPC-H was originally designed for this, however, it actually doesn't reveal the real world workload with several drawbacks. A newer research work from UC Berkeley proposed a HTAP benchmark called TAOBench (https://www.vldb.org/pvldb/vol15/p1965-cheng.pdf) which is pretty interesting and worthy to check.
For the HTAP systems, as mentioned in the above blog, there are quite a few industrial products, like Google just announced AlloyDB (https://cloud.google.com/alloydb), Snowflake's UniStore (https://www.snowflake.com/workloads/unistore/), and one of the most popular open source projects TiDB (https://github.com/pingcap/tidb) which have been deployed by many business applications.
Hopefully these may help a little bit :-)
What are some alternatives?
ClickHouse - ClickHouse® is a free analytics DBMS for big data
vitess - Vitess is a database clustering system for horizontal scaling of MySQL.
Aerospike - Aerospike Database Server – flash-optimized, in-memory, nosql database
cockroach - CockroachDB - the open source, cloud-native distributed SQL database.
Scylla - NoSQL data store using the seastar framework, compatible with Apache Cassandra
oceanbase - OceanBase is an enterprise distributed relational database with high availability, high performance, horizontal scalability, and compatibility with SQL standards.
MySQL - MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.
InfluxDB - Scalable datastore for metrics, events, and real-time analytics
ytsaurus - YTsaurus is a scalable and fault-tolerant open-source big data platform.
go-mysql-elasticsearch - Sync MySQL data into elasticsearch
dqlite - Embeddable, replicated and fault-tolerant SQL engine.
go-mysql - a powerful mysql toolset with Go