故障如下:

root@drbd1:~# drbd-overview0:data/0 StandAlone Primary/Unknown UpToDate/DUnknown /data/mysql ext3 3.9G 8.1M 3.7G 1% root@drbd2:~# drbd-overview0:data/0 StandAlone Primary/Unknown UpToDate/DUnknown /data/mysql ext3 3.9G 8.1M 3.7G 1%

狀態 StandAlone: 沒有可用的網絡配置(沒有可用的復制或同步網路), 資源沒有被連接, 或者是管理員使用drbdadm disconnect <resource> 進行了連接中斷, 也有可能是認證失敗或是產生腦裂而中斷了連接

查看日志:

root@drbd1:~# tail -n 20 /var/log/syslog May 23 20:34:41 drbd1 kernel: [ 4629.177175] drbd data: Peer authenticated using 20 bytes HMAC May 23 20:34:41 drbd1 kernel: [ 4629.177389] drbd data: conn( WFConnection -> WFReportParams ) May 23 20:34:41 drbd1 kernel: [ 4629.177391] drbd data: Starting asender thread (from drbd_r_data [10450]) May 23 20:34:41 drbd1 kernel: [ 4629.186967] block drbd0: drbd_sync_handshake: May 23 20:34:41 drbd1 kernel: [ 4629.186970] block drbd0: self B4EF9EF8D6B328BD:1E9AC6C2E7980795:4B519345CD4008DE:4B509345CD4008DE bits:1024 flags:0 May 23 20:34:41 drbd1 kernel: [ 4629.186972] block drbd0: peer 7B0DFE0CF2812103:1E9AC6C2E7980794:4B519345CD4008DE:4B509345CD4008DE bits:1 flags:2 May 23 20:34:41 drbd1 kernel: [ 4629.186973] block drbd0: uuid_compare()=100 by rule 90 May 23 20:34:41 drbd1 kernel: [ 4629.186976] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0 May 23 20:34:41 drbd1 kernel: [ 4629.188312] block drbd0: helper command: /sbin/drbdadm initial-split-brain minor-0 exit code 0 (0x0) May 23 20:34:41 drbd1 kernel: [ 4629.188324] block drbd0: Split-Brain detected but unresolved, dropping connection! May 23 20:34:41 drbd1 kernel: [ 4629.189831] block drbd0: helper command: /sbin/drbdadm split-brain minor-0 May 23 20:34:41 drbd1 kernel: [ 4629.191008] block drbd0: helper command: /sbin/drbdadm split-brain minor-0 exit code 0 (0x0) May 23 20:34:41 drbd1 kernel: [ 4629.191028] drbd data: conn( WFReportParams -> Disconnecting ) May 23 20:34:41 drbd1 kernel: [ 4629.191030] drbd data: error receiving ReportState, e: -5 l: 0! May 23 20:34:41 drbd1 kernel: [ 4629.191496] drbd data: asender terminated May 23 20:34:41 drbd1 kernel: [ 4629.191497] drbd data: Terminating drbd_a_data May 23 20:34:41 drbd1 kernel: [ 4629.218488] drbd data: Connection closed May 23 20:34:41 drbd1 kernel: [ 4629.218551] drbd data: conn( Disconnecting -> StandAlone ) May 23 20:34:41 drbd1 kernel: [ 4629.218553] drbd data: receiver terminated May 23 20:34:41 drbd1 kernel: [ 4629.218554] drbd data: Terminating drbd_r_data

查看服務狀態:

root@drbd1:~# service drbd status drbd driver loaded OK; device status: version: 8.4.5 (api:1/proto:86-101) srcversion: 5A4F43804B37BB28FCB1F47 m:res cs ro ds p mounted fstype 0:data StandAlone Primary/Unknown UpToDate/DUnknown r----- ext3

其中: drbd1 為主節點, drbd2 為備節點

解決方法:

1.確保卸載所有drbd設備

root@drbd1:~# umount /dev/drbd0 root@drbd2:~# umount /dev/drbd0

2.將所有節點設為Secondary

root@drbd1:~# drbdadm secondary data root@drbd2:~# drbdadm secondary data

3.中斷節點的連接

root@drbd2:~# drbdadm disconnect data ??: Failure: (162) Invalid configuration request additional info from kernel: unknown connection Command 'drbdsetup-84 disconnect ipv4:10.11.8.158:7789 ipv4:10.11.8.145:7789' terminated with exit code 10

4.drbd2 上執行

root@drbd2:~# drbdadm connect data --discard-my-data root@drbd2:~# drbd-overview0:data/0 WFConnection Secondary/Unknown UpToDate/DUnknown

狀態 WFConnection: 表示本節點將會等待, 直到對點網絡實現連接

5.drbd1 上執行

root@drbd1:~# drbdadm connect data root@drbd1:~# drbd-overview0:data/0 Connected Secondary/Secondary UpToDate/UpToDate

狀態恢復正常

總結

以上是生活随笔為你收集整理的[DRBD] UpToDate/DUnknown 故障恢复的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。