The last dd was truncating the files during the stress tests.

continuousintegration/orchestration/tests/client_ar.sh

@@ -194,7 +194,7 @@ for ((subdir=0; subdir < ${NB_DIRS}; subdir++)); do
   # xargs must iterate on the individual file number no subshell can be spawned even for a simple addition in xargs
   for ((i=0;i<${NB_FILES};i++)); do
     echo $(printf %.6d $i)
-done | xargs --max-procs=${NB_PROCS} -iTEST_FILE_NUM bash -c "dd if=/tmp/testfile bs=1k 2>/dev/null | (dd bs=$((${subdir}*${NB_FILES})) count=1 of=/dev/null 2>/dev/null; dd bs=TEST_FILE_NUM count=1 of=/dev/null 2>/dev/null; dd bs=${FILE_KB_SIZE}k count=1 2>/dev/null) | XRD_LOGLEVEL=Dump xrdcp - root://${EOSINSTANCE}/${EOS_DIR}/${subdir}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM 2>${ERROR_DIR}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM && rm ${ERROR_DIR}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM || echo ERROR with xrootd transfer for file ${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM, full logs in ${ERROR_DIR}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM"
+done | xargs --max-procs=${NB_PROCS} -iTEST_FILE_NUM bash -c "dd if=/tmp/testfile bs=1k 2>/dev/null | (dd bs=$((${subdir}*${NB_FILES})) count=1 of=/dev/null 2>/dev/null; dd bs=TEST_FILE_NUM count=1 of=/dev/null 2>/dev/null; dd bs=1k count=${FILE_KB_SIZE} 2>/dev/null) | XRD_LOGLEVEL=Dump xrdcp - root://${EOSINSTANCE}/${EOS_DIR}/${subdir}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM 2>${ERROR_DIR}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM && rm ${ERROR_DIR}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM || echo ERROR with xrootd transfer for file ${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM, full logs in ${ERROR_DIR}/${TEST_FILE_NAME_SUBDIR}TEST_FILE_NUM"
   #done | xargs --max-procs=${NB_PROCS} -iTEST_FILE_NAME xrdcp --silent /tmp/testfile root://${EOSINSTANCE}/${EOS_DIR}/${subdir}/TEST_FILE_NAME
   #  done | xargs -n ${BATCH_SIZE} --max-procs=${NB_BATCH_PROCS} ./batch_xrdcp /tmp/testfile root://${EOSINSTANCE}/${EOS_DIR}/${subdir}
   echo Done.