Linux
清除作業系統總是顯示“操作太慢。小於 1 字節/秒”
一直在嘗試安裝 clear os 外掛，但沒有任何效果，因為我在 .repo 文件中的每個鏡像上都面臨這個錯誤。
# yum install squid http://mirror2-dallas.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on http://mirror2-dallas.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, **'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds'**) Trying other mirror. mirror2-dc.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror2-dc.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, '**Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds'**) Trying other mirror. mirror1.timburgess.net/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror1.timburgess.net/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, '**Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds**') Trying other mirror. mirror2-houston.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror2-houston.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds') Trying other mirror. mirror3-toronto.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror3-toronto.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, '**Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds**') Trying other mirror. mirror2-dallas.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror2-dallas.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, 'O**peration too slow. Less than 1 bytes/sec transfered the last 30 seconds'**) Trying other mirror. mirror2-dc.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror2-dc.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, 'Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds') Trying other mirror. mirror1.timburgess.net/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror1.timburgess.net/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, '**Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds**') Trying other mirror. mirror3-toronto.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: [Errno 12] Timeout on mirror3-toronto.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2: (28, '**Operation too slow. Less than 1 bytes/sec transfered the last 30 seconds**') Trying other mirror. **Error: failure: repodata/primary.sqlite.bz2 from clearos-core: [Errno 256] No more mirrors to try.**我該如何解決這個問題。我可以通過網路訪問 repo，而且 repo 似乎沒有問題。問題可能出在哪裡。
嘗試 yum clean all 但也沒有幫助。
有沒有辦法修復它，因為我無法在其中安裝任何軟體包。
否則網路如何工作？你能手動去那些鏡子嗎？您是否從其他位置嘗試過它們（看看問題是否可能不在您這邊）？
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所以在這裡，我取了一個 URL 並將其下載到我的盒子上：
$ time wget http://mirror3-toronto.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2 --2012-10-16 13:06:52-- http://mirror3-toronto.clearsdn.com/clearos/core/6/x86_64/repodata/primary.sqlite.bz2 Resolving mirror3-toronto.clearsdn.com... 69.90.141.74 Connecting to mirror3-toronto.clearsdn.com|69.90.141.74|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 6952331 (6.6M) [application/x-bzip2] Saving to: “primary.sqlite.bz2” 100%[==================================================================================================================================================================================================>] 6,952,331 742K/s in 6.6s 2012-10-16 13:06:59 (1.00 MB/s) - “primary.sqlite.bz2” saved [6952331/6952331] real 0m6.925s user 0m0.011s sys 0m0.110s $似乎鏡像的速度很好，所以它一定是你在印度的盒子有問題，它可能是很多事情：你的網路（介面錯誤），你的 ISP 的路由等。嘗試尋找鏡像離您的位置更近而不是數千英里，如果您的網路超載/緩慢，我認為無能為力。
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試著在你當地的盒子上做
$ ifconfig | grep errors RX packets:31133806 errors:0 dropped:0 overruns:0 frame:0 TX packets:22168636 errors:0 dropped:0 overruns:0 carrier:0 RX packets:3329073 errors:0 dropped:0 overruns:0 frame:0 TX packets:3329073 errors:0 dropped:0 overruns:0 carrier:0 $如果您沒有看到任何錯誤，請查看您的 Internet (ISP) 網路速度