fabiolimace

DROP VIEW IF EXISTS uuid7;
CREATE VIEW uuid7 AS
WITH unixtime AS (
	SELECT CAST((STRFTIME('%s') * 1000) + ((STRFTIME('%f') * 1000) % 1000) AS INTEGER) AS time
	-- SELECT CAST((UNIXEPOCH('subsec') * 1000) AS INTEGER) AS time -- for SQLite v3.38.0 (2022)
)
SELECT PRINTF('%08x-%04x-%04x-%04x-%012x', 
       (select time from unixtime) >> 16,
       (select time from unixtime) & 0xffff,
       ABS(RANDOM()) % 0x0fff + 0x7000,

BertrandBordage

kchida

- What do Etcd, Consul, and Zookeeper do?
  - Service Registration:
    - Host, port number, and sometimes authentication credentials, protocols, versions
      numbers, and/or environment details.
  - Service Discovery:
    - Ability for client application to query the central registry to learn of service location.
  - Consistent and durable general-purpose K/V store across distributed system.
    - Some solutions support this better than others.
    - Based on Paxos or some derivative (i.e. Raft) algorithm to quickly converge to a consistent state.
    - Centralized locking can be based on this K/V store.

vmihailenco

package main

import (
	"bytes"
	"encoding/hex"
	"flag"
	"fmt"
	"io"
	"log"
	"net"