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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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