出现“ipvs: rr: udp 10.233.0.3:53 - no destination available”错误通常是因为IPVS(IP Virtual Server)负载均衡器没有找到对应的服务端点来处理请求。 原因分析 没有可用的后端服务器: 可能是后端服务没有正确启动或配置。 可能是后端服务全部宕机或无法响应。 IPVS配置问题: IPVS规则可能没有正确设置,导致请求...
IPVS no destination available 现象 内核日志不停报no destination available这样的 warning 日志,查看 dmesg: [23709.680898]IPVS: rr:TCP192.168.0.52:80-nodestinationavailable[23710.709824]IPVS: rr:TCP192.168.0.52:80-nodestinationavailable[23832.428700]IPVS: rr:TCP127.0.0.1:30209-nodestinationavailable[23833.4618...
p = mark->cl;// destinations链表while(1) {if(mark->cl == &svc->destinations) {/* it is at the head of the destination list */if(mark->cl == mark->cl->next) {// 没有rs 返回NULL/* no dest entry */ip_vs_scheduler_err(svc,"no destination available: ""no destinations present...
ip_vs_scheduler_err(svc, "no destination available"); // 返回 NULL,表示没有可用的目标服务器 return NULL;out: // 更新服务的调度数据,指向下一个要调度的目标服务器svc->sched_data = &dest->n_list; // 释放调度锁spin_unlock_bh(&svc->sched_lock); // 打印选中的目标服务器的信息 ...
ip_vs_scheduler_err(svc,"no destination available"); dest =NULL;gotoout; } } }elsemark->cl = mark->cl->next;// 不是destinations表头,直接查找下一个 最小连接数调度算法 最小连接调度(Least-Connection Scheduling)算法是把新的连接请求分配到当前连接数最小的服务器。最小连接调度是一种动态调度算...
All worked fine to start with, however after editing it's settings to add a "Data Hostpath" the app will no longer start. The console just continually generates the following message until the app is manually stopped again: IPVS: rr: UDP 172.17.21.37:32412 -...
Tencent/TencentOS-kernel@fe66d65 kubernetes/kubernetes#100925 https://github.com/torvalds/linux/blob/95c7b07551879c8ad4d6dca10c02de46ddbf55a8/include/net/ip_vs.h#L259-L263 https://ask.kubesphere.io/forum/d/3301-vmware30no-destination-ava...
IP_VS_ERR_RL("OFFH: no destination available\n"); return NULL; } return dest; } static struct ip_vs_scheduler ip_vs_offh_scheduler = { .name = "offh", .refcnt = ATOMIC_INIT(0), .module = THIS_MODULE, .n_list = LIST_HEAD_INIT(ip_vs_offh_scheduler.n_list), ...
ipvs: queue delayed work to expire no destination connections if expire_nodest_conn=1[4]提前了expire connection的操作,在 destination 被删除后,便开始将expire connection操作入队列。而不是等到数据包真正发过来时,才做expire connection,以此来减少数据包的丢失。
[2866557.029471]IPVS: rr: TCP 10.233.13.12:443 - no destination available[2866689.188072]IPVS: __ip_vs_del_service: enter[2866689.420334]IPVS: __ip_vs_del_service: ente 浏览459提问于2020-01-21得票数1 1回答 为什么要在docker中运行长期运行的postgres查询(ubuntu:18.04),就需要在“内核copg2.connec...