JOBF ends abnormally with U00063048 Protocol error: FileTransfer session with ID '&1' is already active.

Document ID : KB000084591
Last Modified Date : 14/04/2018
Show Technical Document Details
Issue:
Error Message :
JOBF ends abnormally with U00063048 Protocol error: FileTransfer session with ID '&1' is already active.

A File transfer (FT) that has a Unix agent involved, results in a "connection to agent XXX  terminated" error and the FT ends abnormally.

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In the Unix agent's log information similar to this can be found:
20170726/083339.790 - U00011407 FT '237453795': FileTransfer with partner 'WMS556PROD' started.
20170726/083339.791 - U00063073 FT '237453795' Connection to Agent 'WMS556PROD' terminated.
20170726/083339.791 - U02000230 FT '237453795': Thread 'B30FFB90' ended.
20170726/083340.090 - U00063048 Protocol error: FileTransfer session with ID '237453795' is already active.
20170726/083448.589 - U00011409 FT '237453795': FileTransfer ended abnormally.
Environment:
OS: Unix
OS Version: N/A
Cause:
Cause type:
Defect
Root Cause: When the Unix agent is the file transfer sender and the connection is opened in the reverse direction from the destination to the source, the file transfer can fail with a protocol error stating that a file transfer with that RunID is already active. Additionally. a memory leak may remain.
Resolution:
Update to a fix version listed below or a newer version if available.

Fix Status: Released

Fix Version(s):
Component(s): Agent Unix

Automation.Engine 12.1.1 - Available
Automation Engine 12.0.4 - Available
Automation Engine 11.2.6 - Available
Additional Information:
Workaround :
Restart the FT Job.