[gridftp-user] client debugging

[John Bresnahan]

>> I'm using the gridftp client libraries to submit jobs to the NorduGrid 
>> ARC service. On a certain client machine, if I start a couple dozen 
>> gridftp operations in parallel (with different gridftp handles), a 
>> random set of the operations will fail after 10 minutes with the 
>> following error:
>>
>> an end-of-file was reached globus_xio: An end of file occurred
>>
>> This sounds like one side is timing out and closing the connection. 

That is a possibilty, or one side is crashing.

>> The operations are gets, puts, and deletions of small files. If I run 
>> the same test on another machine at a different site, no failures occur.
>>
>> I'm not sure how to debug this problem further. Is there a way to 
>> enable extra debugging in the gridftp client libraries to log what 
>> messages are being sent over the wire and when?

export GLOBUS_FTP_CLIENT_DEBUG_LEVEL=255