Today has been reported abnormal server
To add code to catch the exception only know the beginning is Input / output error but can not locate where specific problems
The exception caught with logger.exception find the location of print
Then check the code to do their own tests using a local print (xxxx) to upload the server is not deleted after turn off the ssh prompt this error
this error can not be summed up using the print server to print a test to do because it will report after turning off ssh