rwdb alternatives and similar packages
Based on the "Database" category.
Alternatively, view rwdb alternatives based on common mentions on social networks and blogs.
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vitess
vitess provides servers and tools which facilitate scaling of MySQL databases for large scale web services. -
groupcache
Groupcache is a caching and cache-filling library, intended as a replacement for memcached in many cases. -
TinyGo
Go compiler for small places. Microcontrollers, WebAssembly, and command-line tools. Based on LLVM. -
go-cache
An in-memory key:value store/cache (similar to Memcached) library for Go, suitable for single-machine applications. -
VictoriaMetrics
fast, resource-effective and scalable open source time series database. May be used as long-term remote storage for Prometheus. Supports PromQL. -
buntdb
A fast, embeddable, in-memory key/value database for Go with custom indexing and spatial support. -
xo
Generate idiomatic Go code for databases based on existing schema definitions or custom queries supporting PostgreSQL, MySQL, SQLite, Oracle, and Microsoft SQL Server. -
sql-migrate
Database migration tool. Allows embedding migrations into the application using go-bindata. -
immudb
immudb is a lightweight, high-speed immutable database for systems and applications written in Go. -
nutsdb
Nutsdb is a simple, fast, embeddable, persistent key/value store written in pure Go. It supports fully serializable transactions and many data structures such as list, set, sorted set. -
skeema
Pure-SQL schema management system for MySQL, with support for sharding and external online schema change tools. -
Bitcask
Bitcask is an embeddable, persistent and fast key-value (KV) database written in pure Go with predictable read/write performance, low latency and high throughput thanks to the bitcask on-disk layout (LSM+WAL).
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README
rwdb
Database wrapper that manage read write connections
Install
go get github.com/andizzle/rwdb
Create connections
package main
import "github.com/andizzle/rwdb"
var conns = []string{
"tcp://user:[email protected]/dbname",
"tcp://user:[email protected]/dbname",
"tcp://user:[email protected]/dbname",
"tcp://user:[email protected]/dbname",
}
// unable to open write will cause an error
db, err := rwdb.Open("driver", conns...)
Rotation read and Sticky read
Query a database rotate the use of database connections
Basic usage
db, err := rwdb.Open("driver", conns...)
// Use the first connection
db.QueryContext(ctx)
// Use the next connection
db.QueryContext(ctx)
Execute a statement will cause all subsequent queries to use the write connection (sticky connection). This is to allow the immediate reading of records that have been written to the database during the current request cycle.
db, err := rwdb.Open("driver", conns...)
// Use the next connection
db.QueryContext(ctx)
// Use the write conenction
db.ExecContext(ctx)
// Use the write connection
db.Query()
Sticky can be turned off
db.SetSticky(false)
A more practical example
The db is marked as modified if there's a successful Write to the databse, which turns on the sticky logic.
However, the real world usecase would require modified value to be reset on each request session.
Here's what we can do:
db, err := rwdb.Open("driver", conns...)
func RecordUserLogin() {
d := db.New() // This will make sure the following read are not affected by
// other sessions' write action
d.Query("SELECT * from `users` where id = ?")
...
d.Exec("UPDATE `users` set last_login_at = now();")
d.Query(...) // Connection is set to the writer
}
License
*Note that all licence references and agreements mentioned in the rwdb README section above
are relevant to that project's source code only.