Question

我使用haproxy作为mariadb galera集群的banlancer，它可以正常连接并进行一些操作，但是在serval秒之后我想再次进行一些搜索但是在查询错误期间丢失连接。请看图像下方的错误。

这是我的haproxy.cfg

 defaults
        log                     global
        mode                    tcp
        option                  tcplog
        option                  dontlognull
        option http-server-close
        option                  redispatch
        retries                 3
        timeout http-request    10s
        timeout queue           1m
        timeout connect         10s
        timeout client          50000ms
        timeout server          50000ms
        timeout http-keep-alive 10s
        timeout check           10s
        maxconn                 3000

和haproxy.cfg中mariadb群集的余额

listen mariadb_cluster_writes 0.0.0.0:50613    
    ## A failover pool for writes to ensure writes only hit one node at a time.
        mode tcp
        #option httpchk
        option tcpka
        option mysql-check user haproxy
        server node65 172.27.12.65:3306 check weight 2
        server node64 172.27.12.64:3306 check weight 1
        server node67 172.27.12.67:3306 check weight 1

    listen mariadb_cluster_reads 0.0.0.0:50614
    ## A load-balanced pool for reads to utilize all nodes for reads.
        mode tcp
        balance leastconn
        #option httpchk
        option tcpka
        option mysql-check user haproxy
        server node65 172.27.12.65:3306 check weight 1
        server node64 172.27.12.64:3306 check weight 1
        server node67 172.27.12.67:3306 check weight 1

有人有想法吗？

Answer 1

我想我找到了原因.Haproxy本身对服务器和客户端有超时，我设置服务器超时和客户端超时和mysql超时8小时相同。现在好像这样：

defaults
        log                     global
        mode                    tcp
        option                  tcplog
        option                  dontlognull
        option http-server-close
        option                  redispatch
        retries                 3
        timeout http-request    10s
        timeout queue           1m
        timeout connect         10s
        timeout client          480m
        timeout server          480m
        timeout http-keep-alive 10s
        timeout check           10s
        maxconn                 3000

希望可以帮助别人。

然而我使用mariadb群集，它是主人和母亲架构，所有节点都可以插入，所以我改了haproxy.cfg，现在好像这样：

# Global settings
global
    log         127.0.0.1 local2
    maxconn     4000
    daemon

defaults
    log                     global
    mode                    tcp
    #option                  tcplog

    option                  dontlognull
    option                  tcp-smart-accept
    option                  tcp-smart-connect
    option                  redispatch
    retries                 3
    timeout connect         5s
    timeout client          480m
    timeout server          480m

listen admin_stats 
        bind 0.0.0.0:50613
        mode http                       
        maxconn 10
        stats refresh 30s              
        stats uri /stats               
        stats realm XingCloud\ Haproxy  
        stats auth admin:admin          


listen galera_back
        bind :50614
        balance leastconn
        server node65 172.27.12.65:3306 check weight 1
        server node64 172.27.12.64:3306 check weight 1
        server node67 172.27.12.67:3306 check weight 1

我使用haproxy作为mariadb集群的banlancer，但在查询期间丢失了连接

1 个答案: