[英]How to get number of connections in Redis using Node.js?
有沒有辦法檢查 Redis 數據庫的當前連接數?
const redis = require('redis');
var client = redis.createClient(port, host);
client.on('connect', () => {
//Display how many current connections are to Redis
console.log( numberOfRedisClients );
});
根據 redis文檔試試這個:
const Redis = require("ioredis");
let client = new Redis();
async function my_function(){
console.log(await client.send_command('CLIENT', 'LIST'))
}
output:
id=24 addr=127.0.0.1:47962 fd=8 name= age=0 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=0 obl=0 oll=0 omem=0 events=r cmd=info
id=25 addr=127.0.0.1:47964 fd=9 name= age=0 idle=0 flags=P db=0 sub=1 psub=0 multi=-1 qbuf=0 qbuf-free=32768 obl=0 oll=0 omem=0 events=r cmd=subscribe
id=26 addr=127.0.0.1:47966 fd=10 name= age=0 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=26 qbuf-free=32742 obl=0 oll=0 omem=0 events=r cmd=client
CLIENT LIST以大多數人類可讀的格式返回有關客戶端連接服務器的信息和統計信息,如答案中所述的@babak。
如果您只需要獲取total number of connections
您可以使用INFO命令。 INFO clients
將打印類似這樣的內容,而connected_clients
將是您正在尋找的內容。
# Clients
connected_clients:2
client_recent_max_input_buffer:8
client_recent_max_output_buffer:0
blocked_clients:0
tracking_clients:0
clients_in_timeout_table:0
以下代碼完成工作;
const Redis = require("ioredis");
const redis = new Redis();
async function clients() {
console.log(await redis.info('clients'));
}
clients();
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