possible to crash if I copy a file to multiple folders at the same time?# Linux - Linux 操作系统
s*d
1 楼
绿卡, 护照
还需要带什么ma?
thanks
还需要带什么ma?
thanks
f*2
2 楼
据说要出具护照，绿卡，以及中文翻译件，还要大使馆证明，不知有没有前辈做过？具
体如何操作，谢谢。
体如何操作，谢谢。
w*a
3 楼
貌似不少，可以抵税吗？ 谢谢。
p*h
4 楼
【 以下文字转载自 Seattle 讨论区 】
发信人: pharmyeah (DMPKPD), 信区: Seattle
标 题: 发个手持中秋月亮
发信站: BBS 未名空间站 (Wed Sep 22 03:37:45 2010, 美东)
中秋快乐!
附图:
560mm*1.6 手动对焦
手持 没有想到对上焦了
发信人: pharmyeah (DMPKPD), 信区: Seattle
标 题: 发个手持中秋月亮
发信站: BBS 未名空间站 (Wed Sep 22 03:37:45 2010, 美东)
中秋快乐!
附图:
560mm*1.6 手动对焦
手持 没有想到对上焦了
b*t
5 楼
Hi All,
I did a quick search, but no luck.
Say, I use qsub to submit multiple jobs to run on a cluster. Each job on a
computing node will generate a folder and copy a file to this folder. That
means its possible that multiple computing nodes will copy the same file to
different folders. (notice that all the folders on a shared file system.)
Do you think that would be problematic? I believe, occasionally, there was
crashes that the copied file was corrupted and became empty. If the problem
is because of copying from different folders, how can I fix this problem?
Thanks very much,
Beet
I did a quick search, but no luck.
Say, I use qsub to submit multiple jobs to run on a cluster. Each job on a
computing node will generate a folder and copy a file to this folder. That
means its possible that multiple computing nodes will copy the same file to
different folders. (notice that all the folders on a shared file system.)
Do you think that would be problematic? I believe, occasionally, there was
crashes that the copied file was corrupted and became empty. If the problem
is because of copying from different folders, how can I fix this problem?
Thanks very much,
Beet
p*w
6 楼
够了
【在 s*****d 的大作中提到】
: 绿卡, 护照
: 还需要带什么ma?
: thanks
【在 s*****d 的大作中提到】
: 绿卡, 护照
: 还需要带什么ma?
: thanks
d*n
7 楼
是不是还需要户口啊？
r*a
8 楼
it is deducted from your capital gain.
【在 w**a 的大作中提到】
: 貌似不少，可以抵税吗？ 谢谢。
【在 w**a 的大作中提到】
: 貌似不少，可以抵税吗？ 谢谢。
I*8
9 楼
560mm*1.6 手动对焦,牛比
m*5
10 楼
你的问题描述太不清楚了
请试图用一段伪码来表述你的问题
to
problem
【在 b****t 的大作中提到】
: Hi All,
: I did a quick search, but no luck.
: Say, I use qsub to submit multiple jobs to run on a cluster. Each job on a
: computing node will generate a folder and copy a file to this folder. That
: means its possible that multiple computing nodes will copy the same file to
: different folders. (notice that all the folders on a shared file system.)
: Do you think that would be problematic? I believe, occasionally, there was
: crashes that the copied file was corrupted and became empty. If the problem
: is because of copying from different folders, how can I fix this problem?
: Thanks very much,
请试图用一段伪码来表述你的问题
to
problem
【在 b****t 的大作中提到】
: Hi All,
: I did a quick search, but no luck.
: Say, I use qsub to submit multiple jobs to run on a cluster. Each job on a
: computing node will generate a folder and copy a file to this folder. That
: means its possible that multiple computing nodes will copy the same file to
: different folders. (notice that all the folders on a shared file system.)
: Do you think that would be problematic? I believe, occasionally, there was
: crashes that the copied file was corrupted and became empty. If the problem
: is because of copying from different folders, how can I fix this problem?
: Thanks very much,
f*2
11 楼
户口早注销了。
【在 d******n 的大作中提到】
: 是不是还需要户口啊？
【在 d******n 的大作中提到】
: 是不是还需要户口啊？
w*a
12 楼
用的是TD，你是说已经从capital gain 扣除了？
【在 r****a 的大作中提到】
: it is deducted from your capital gain.
【在 r****a 的大作中提到】
: it is deducted from your capital gain.
s*j
13 楼
月饼原来是这样的，早上吃的太快没仔细看。。。
M*r
14 楼
1. the code doesn't check if the directory/file already exists?
2. any log file for all the mkdir/cp/scp operations?
to
problem
【在 b****t 的大作中提到】
: Hi All,
: I did a quick search, but no luck.
: Say, I use qsub to submit multiple jobs to run on a cluster. Each job on a
: computing node will generate a folder and copy a file to this folder. That
: means its possible that multiple computing nodes will copy the same file to
: different folders. (notice that all the folders on a shared file system.)
: Do you think that would be problematic? I believe, occasionally, there was
: crashes that the copied file was corrupted and became empty. If the problem
: is because of copying from different folders, how can I fix this problem?
: Thanks very much,
2. any log file for all the mkdir/cp/scp operations?
to
problem
【在 b****t 的大作中提到】
: Hi All,
: I did a quick search, but no luck.
: Say, I use qsub to submit multiple jobs to run on a cluster. Each job on a
: computing node will generate a folder and copy a file to this folder. That
: means its possible that multiple computing nodes will copy the same file to
: different folders. (notice that all the folders on a shared file system.)
: Do you think that would be problematic? I believe, occasionally, there was
: crashes that the copied file was corrupted and became empty. If the problem
: is because of copying from different folders, how can I fix this problem?
: Thanks very much,
d*n
15 楼
没户口也可以买房吗？
【在 f*******2 的大作中提到】
: 户口早注销了。
【在 f*******2 的大作中提到】
: 户口早注销了。
r*a
16 楼
u'd better manually double check.
I use turboTax. I checked that the transaction fees were deducted from
capital gain.
【在 w**a 的大作中提到】
: 用的是TD，你是说已经从capital gain 扣除了？
I use turboTax. I checked that the transaction fees were deducted from
capital gain.
【在 w**a 的大作中提到】
: 用的是TD，你是说已经从capital gain 扣除了？
P*4
17 楼
拍得不错！
我用200mm*2就拍不出这么多月亮的细节
我用200mm*2就拍不出这么多月亮的细节
b*t
18 楼
Sorry for the confusion. But the question is kind of general.
Say,
I have one file fieldinput.DATA in the current folder.
Now I have 20 parallel jobs, in job i, first is to create a folder
1. mkdir job$i
2. cp fieldinput.DATA job$i
So for these 20 jobs on 20 computing nodes, its possible that multiple jobs
are copying the same fieldinput.DATA to their corresponding folder job$i.
Would that be problematic? Possible to crash the file fieldinput.DATA?
Thanks again for your comments.
Beet
【在 m********5 的大作中提到】
: 你的问题描述太不清楚了
: 请试图用一段伪码来表述你的问题
:
: to
: problem
l*u
19 楼
yes I did it in 2010.
I was H1b at the time without 户口.
【在 d******n 的大作中提到】
: 没户口也可以买房吗？
I was H1b at the time without 户口.
【在 d******n 的大作中提到】
: 没户口也可以买房吗？
m*1
20 楼
请问，这里的1.6和2是啥意思？光圈吗？
l*G
21 楼
How big is the file? If it is more than 1G and u r using NFS, you may have
problem. Lustre file system is better
problem. Lustre file system is better
e*a
22 楼
具体说说， 人在美国，国内有户口， 怎么贷款买房啊？
【在 l*u 的大作中提到】
: yes I did it in 2010.
: I was H1b at the time without 户口.
【在 l*u 的大作中提到】
: yes I did it in 2010.
: I was H1b at the time without 户口.
P*4
23 楼
换算成35mm标准吧。
我的是micro43,所以要以2,我猜搂主是Canon的APS-C,所以要乘1.6
我也放上我的农历八月十三的月亮吧，焦距不够远，没法拍出细节。
【在 m******1 的大作中提到】
: 请问，这里的1.6和2是啥意思？光圈吗？
我的是micro43,所以要以2,我猜搂主是Canon的APS-C,所以要乘1.6
我也放上我的农历八月十三的月亮吧，焦距不够远，没法拍出细节。
【在 m******1 的大作中提到】
: 请问，这里的1.6和2是啥意思？光圈吗？
l*G
24 楼
How big is the file? If it is more than 1G and u r using NFS, you may have
problem. Lustre file system is better
problem. Lustre file system is better
b*7
25 楼
可以弄个授权委托书委托别人代理买房
【在 e*****a 的大作中提到】
: 具体说说， 人在美国，国内有户口， 怎么贷款买房啊？
m*k
26 楼
手持，很牛。纲手大人。
b*t
27 楼
small files. Thanks.
I think this could be a very frequently asked question, but surprisingly no
quick answers on the net.
So a general question:
Would it be possibly a problem if A FILE was copied at the SAME TIME by
multiple applications to different places in linux?
Regards,
Beet
【在 l*******G 的大作中提到】
: How big is the file? If it is more than 1G and u r using NFS, you may have
: problem. Lustre file system is better
p*h
28 楼
而且我看了 还不是无穷远
无穷远的时候就花了
所以我还手动对焦
【在 I***8 的大作中提到】
: 560mm*1.6 手动对焦,牛比
无穷远的时候就花了
所以我还手动对焦
【在 I***8 的大作中提到】
: 560mm*1.6 手动对焦,牛比
l*G
29 楼
Because disk is a serial device, same file can be accessed by one process at
a given time.
If you have a lock and unlock mechanism, then you will not have problem.
Instead of copying, why not just make a link?
a given time.
If you have a lock and unlock mechanism, then you will not have problem.
Instead of copying, why not just make a link?
p*h
30 楼
还没有吃呢
【在 s****j 的大作中提到】
: 月饼原来是这样的，早上吃的太快没仔细看。。。
【在 s****j 的大作中提到】
: 月饼原来是这样的，早上吃的太快没仔细看。。。
b*t
31 楼
at
Thanks for your suggestion. The file linked or copied will be read
simultaneously by the parallel jobs. Same issue.
Beet
【在 l*******G 的大作中提到】
: Because disk is a serial device, same file can be accessed by one process at
: a given time.
: If you have a lock and unlock mechanism, then you will not have problem.
: Instead of copying, why not just make a link?
p*h
32 楼
恩 这个确实有800mm 的 感觉了
【在 P****4 的大作中提到】
: 拍得不错！
: 我用200mm*2就拍不出这么多月亮的细节
【在 P****4 的大作中提到】
: 拍得不错！
: 我用200mm*2就拍不出这么多月亮的细节
w*g
33 楼
agree
at
【在 l*******G 的大作中提到】
: Because disk is a serial device, same file can be accessed by one process at
: a given time.
: If you have a lock and unlock mechanism, then you will not have problem.
: Instead of copying, why not just make a link?
at
【在 l*******G 的大作中提到】
: Because disk is a serial device, same file can be accessed by one process at
: a given time.
: If you have a lock and unlock mechanism, then you will not have problem.
: Instead of copying, why not just make a link?
p*h
34 楼
恩 对的对的
【在 P****4 的大作中提到】
: 换算成35mm标准吧。
: 我的是micro43,所以要以2,我猜搂主是Canon的APS-C,所以要乘1.6
: 我也放上我的农历八月十三的月亮吧，焦距不够远，没法拍出细节。
【在 P****4 的大作中提到】
: 换算成35mm标准吧。
: 我的是micro43,所以要以2,我猜搂主是Canon的APS-C,所以要乘1.6
: 我也放上我的农历八月十三的月亮吧，焦距不够远，没法拍出细节。
p*h
35 楼
哈哈哈 第一次看到纲手 两字
【在 m*****k 的大作中提到】
: 手持，很牛。纲手大人。
【在 m*****k 的大作中提到】
: 手持，很牛。纲手大人。
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