Hi Andy,
I didn't realize that xrdcp would allow one to create an arbitrary set
of sub-directories. I experimented with copy commands and I think I
understand how this behaves. I have no problem with the behavior and
don't see the need for a broadcast creation.
Thanks,
Patrick
Andrew Hanushevsky wrote:
> Hi Patrick,
>
> By default, xrootd is configured to create directories automatically
> (i.e., via the Posix interface anyway). This should cover gridftp. Xrdcp
> also creates directories automatically. So, generally, you need not
> create directories manually. In fact, unless you configure broadcast
> directory creation, it won't work the way you expect it in the
> traditional sense. Generally, you need not worry about it anyway.
>
> Andy
>
> ----- Original Message ----- From: "Patrick McGuigan" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, November 07, 2007 6:18 PM
> Subject: mkdir in xrootd
>
>
>> Another basic question,
>>
>>
>> I have a prototype system running with two dataservers, one redirector
>> and one client machine. The system operates on one name space (/xrd).
>>
>> I can use xrdcp to copy files from the client to the dataservers via
>> the redirector as expected:
>>
>> [client] $ xrdcp /tmp/testfile root://redirector//xrd/testfileNNNN
>>
>>
>> I also see the expected load balancing where the destination
>> dataserver alternates between invocations (when varying NNN).
>>
>> The next test is understanding how our production system can use the
>> namespace. The first issue will be creating subdirectories in the
>> namespace. I need a command line directory creation command (or script).
>> Is it possible to use xrd for this? I didn't see very much
>> documentation for this command.
>> I may also need to allow gridftp to create directories. Is this
>> possible by using a preload library?
>>
>>
>> Can I create a subdirectory via the redirector using the xrd command?
>> This fails on my system, but I can create a directory if I first
>> connect to a dataserver.
>>
>> Is it sane to create multiple instances of a subdirectory on multiple
>> data servers? Will this allow for load balancing?
>>
>>
>> Thanks for any help,
>>
>> Patrick
>>
>>
>>
>>
>>
>>
>>
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