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Apparently the "XrdClient counters:"  cannot be redirected to file - "xrdcp" does not emit them if STDOUT is redirected. Which is odd, since the preceding "Low level caching info:" is printed. Suggest to allow redirecting, these might have useful info and the overall amount of data compared to e.g. STDERR is negligible.

$ xrdcp -d 1 -f root://eospps//eos/testfile /dev/null  2>/dev/null

Low level caching info:
 StallsRate=1
 StallsCount=1
 ReadsCounter=1
 BytesUsefulness=0
 BytesSubmitted=2097152 BytesHit=0

XrdClient counters:
 ReadBytes:                 1048576
 WrittenBytes:              0
 WriteRequests:             0
 ReadRequests:              1
 ReadMisses:                1
 ReadHits:                  0
 ReadMissRate:              1.000000
 ReadVRequests:             0
 ReadVSubRequests:          0
 ReadVSubChunks:            0
 ReadVBytes:                0
 ReadVAsyncRequests:        0
 ReadVAsyncSubRequests:     0
 ReadVAsyncSubChunks:       0
 ReadVAsyncBytes:           0
 ReadAsyncRequests:         0
 ReadAsyncBytes:            0

$ xrdcp -d 1 -f root://eospps//eos/testfile /dev/null  2>/dev/null >/tmp/sfdhjfd;  cat /tmp/sfdhjfd

Low level caching info:
 StallsRate=1
 StallsCount=1
 ReadsCounter=1
 BytesUsefulness=0
 BytesSubmitted=2097152 BytesHit=0
 
$ rpm -qf `which xrdcp`
xrootd-client-3.3.3-1.slc6.x86_64


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Reply to this email directly or view it on GitHub:
https://github.com/xrootd/xrootd/issues/37

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