Client abends during RETR command data transfer

If the client abends while processing a RETR command, issue the STAT command, and check the value of the checkpoint interval. If this value is greater than zero and data is being transferred in EBCDIC, either block mode or compressed mode, the server is sending checkpoint markers with the data being transferred. If the client being used does not support checkpoint/restart, this checkpoint information can cause unpredictable results, such as abends or data errors at the client. Change the setting of the checkpoint interval by issuing SITE CHKPTINT=0.