在辅助节点重启后重新连接无共享主动-被动 DRBD 集群中的辅助节点

在辅助节点重启后重新连接无共享主动-被动 DRBD 集群中的辅助节点

我正在使用 DRBD(配置如下)并尝试测试设置的可靠性。

我重新启动了辅助节点(host1)并发现它进入了这种状态:

host1:
 0:r0/0  WFConnection Secondary/Unknown UpToDate/DUnknown 

host2:
 0:r0/0  StandAlone Primary/Unknown UpToDate/DUnknown lvm-pv: vgr0 1861.65g 40.00g

drbd服务在主服务器上运行,它也在辅助服务器上启动。但是,我在辅助服务器上尝试的任何操作都无法重新连接它:

drbdadm adjust all

drbdadm disconnect r0

drdbadm connect all

所有命令都以以下内容结尾:

Failure: (102) Local address (port) already in use.

最后,我在主服务器上重新启动了 drbd 服务 ( service drbd restart)。仅此操作重新连接了服务:

host1:
 0:r0/0  Connected Secondary/Primary UpToDate/UpToDate 

host2:
 0:r0/0  Connected Primary/Secondary UpToDate/UpToDate lvm-pv: vgr0 1861.65g 40.00g 

这是为什么? 我可以在WFConnection不重启主服务器服务的情况下恢复吗?

资源定义:

resource r0 {
        protocol C;
        startup {
                wfc-timeout  15;
                degr-wfc-timeout 60;
        }
        disk {
                on-io-error     detach;
                c-fill-target   10M;
                c-max-rate      700M;
                c-plan-ahead    7;
                c-min-rate      4M;
        }
        net {
                # max-epoch-size  20000;
                max-buffers       36k;
                sndbuf-size       1024k;
                rcvbuf-size       2048k;
                after-sb-0pri    discard-zero-changes;
                after-sb-1pri    discard-secondary;
                after-sb-2pri    disconnect;
                rr-conflict      disconnect;                
        }
        syncer {
                rate                    400M;
                al-extents              6433;
        }
        on host1 {
                device /dev/drbd0;
                disk /dev/sdc;
                address 10.0.0.2:7788;
                meta-disk internal;
        }
        on host2 {
                device /dev/drbd0;
                disk /dev/sdc;
                address 10.0.0.3:7788;
                meta-disk internal;
        }
}

我将/dev/drbd0其用作 LVM 卷:

% pvdisplay  /dev/drbd0
  --- Physical volume ---
  PV Name               /dev/drbd0
  VG Name               vgr0
  PV Size               1.82 TiB / not usable 3.79 MiB
  Allocatable           yes 
  PE Size               4.00 MiB
  Total PE              476583
  Free PE               466343
  Allocated PE          10240
  PV UUID               JC0Us5-jxC1-9u2F-Wsyp-toJy-E2J4-sXu8Id

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