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Xen 4.1.2 嘗試設定 remus 時發生錯誤

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Xen 4.1.2 嘗試設定 remus 時發生錯誤

當我嘗試在兩台機器之間設定remus 時，我在remus 日誌檔案中收到錯誤，我無法理解為什麼會發生這種情況，我在兩個系統上運行相同的虛擬機，因此嘗試複製應該不是問題。日誌檔如下

Disk is not replicated: phy:/dev/loop0,xvda,w
Disk is not replicated: phy:/dev/loop1,xvdb,w
tc qdisc add dev vif1.0 ingress
RTNETLINK answers: File exists
tc filter add dev vif1.0 parent ffff: proto ip pref 10 u32 match u32 0 0 action
mirred egress redirect dev ifb0
RTNETLINK answers: No such file or directory
We have an error talking to the kernel
Traceback (most recent call last):
  File "/usr/bin/remus", line 219, in <module>
     run(cfg)
  File "/usr/bin/remus", line 125, in run
     bufs.append(BufferedNIC(vif))
  File "/usr/lib64/python2.6/site-packages/xen/remus/device.py", line 326, in __init__
    self.setup()
  File "/usr/lib64/python2.6/site-packages/xen/remus/device.py", line 358, in setup
    self.bufdev.install(self.vif)
  File "/usr/lib64/python2.6/site-packages/xen/remus/device.py", line 184, in install
    'dev %s' % (vif.dev, self.devname))
  File "/usr/lib64/python2.6/site-packages/xen/remus/util.py", line 71, in runcmd
    proc.returncode)
xen.remus.util.PipeException: tc failed (errmsg: RTNETLINK answers: No such file or directory
We have an error talking to the kernel): 2, No such file or directory

用於取得該文件的remus指令如下：

remus -i 100 sles11-sp1-xm BackupMachineIP >/var/log/xen/domU-sles11-sp1-24-09-12.log 2>&1 &

BackupMachineIP設定為備份設備的IP位址名稱，xm清單的內容以及每台機器上的環回設備設定如下：

xm列表

基本的：

 Name                                        ID   Mem VCPUs      State   Time(s)
 Domain-0                                     0 1036702     8     r----- 411617.9
 sles11-sp1                                       512     4                 0.0
 sles11-sp1-xm                                1   256     1     -b----     77.0
 sles11-sp2                                       512     4                 0.0
 sles11-sp2-xm                                2   256     1     -b----     62.0

次要：

 Name                                        ID   Mem VCPUs      State   Time(s)
 Domain-0                                     0  1400     2     r-----     73.1
 sles11-sp1-xm                                1   256     1     -b----     11.6
 sles11-sp2-xm                                2   256     1     -b----     14.0

遺失設定

基本的：

/dev/loop0: [0808]:337772 (/tmp/base/sles11sp1/sles11sp1.img)
/dev/loop1: [0808]:337773 (/tmp/base/sles11sp1/swap)
/dev/loop2: [0808]:337779 (/tmp/base/sles11sp2/sles11sp2.img)
/dev/loop3: [0808]:337780 (/tmp/base/sles11sp2/swap)

次要：

/dev/loop0: [0805]:2109411 (/tmp/base/sles11sp1/sles11sp1.img)
/dev/loop1: [0805]:2109412 (/tmp/base/sles11sp1/swap)
/dev/loop2: [0805]:1840010 (/tmp/base/sles11sp2/sles11sp2.img)
/dev/loop3: [0805]:1840012 (/tmp/base/sles11sp2/swap)

答案1

可能您的核心沒有載入鏡像核心模組。通常它甚至不與核心一起編譯，因此您必須編譯並載入它。如果模組未加載，RTNETLINK 會回答一個簡單的 ENOENT（沒有這樣的檔案或目錄），這很愚蠢，我花了幾乎一天的時間才找出它不起作用的原因。

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