命令和報錯如下:
[root@test ~]# ipvsadm -A -t 192.168.113.5:80 -s wwr Memory allocation problem
顯示的是內存分配問題,我認為自己處理不了,就想着直接搜索引擎解決,結果按照別人博客的指引查看/var/log/message時,發現其實是調度算法寫錯了,沒有wwr這個模式。。。。
日志查看如下:
[root@test ~]# tail -f /var/log/messages Aug 1 16:36:56 192 chronyd[6203]: Selected source 185.255.55.20 Aug 1 16:37:30 192 systemd: Reloading. Aug 1 16:37:30 192 yum[7888]: Installed: ipvsadm-1.27-7.el7.x86_64 Aug 1 16:39:51 192 kernel: IPVS: Registered protocols (TCP, UDP, SCTP, AH, ESP) Aug 1 16:39:51 192 kernel: IPVS: Connection hash table configured (size=4096, memory=64Kbytes) Aug 1 16:39:51 192 kernel: IPVS: Creating netns size=2048 id=0 Aug 1 16:39:51 192 kernel: IPVS: ipvs loaded. Aug 1 16:39:51 192 kernel: IPVS: Scheduler module ip_vs_wwr not found Aug 1 16:40:05 192 kernel: IPVS: Scheduler module ip_vs_wwr not found Aug 1 16:44:26 192 kernel: IPVS: Scheduler module ip_vs_wwr not found
總結:出現問題,首先應該想到的是查看日志,如果有些服務沒有日志,就查看系統日志,如/var/log/messages
