File Transfer jobs are too slow

Document ID : KB000090101
Last Modified Date : 14/04/2018
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Issue:
File Transfer jobs are too slow
Resolution:

Symptoms

Our FT job excountered slow performance and we found error : WSAEWOULDBLOCK () while sending data to  ... " 


Cause

The message said that when the agent trying to connect to CP to send data, its resource temporarily unavailable ! 


Resolution

The reason for its unavailalbe resource could be: 

- The problem with the network or the network card of the machine where the agent resides -> Please have network admin check it. 

- The size of the TCP/IP input/output buffer for message sent/received is too small. When there are a lot of file transfers running parallel, it might require larger buffer size to meet the FT requests. 

The buffer size is determined by parameter "SendBufferSize", "RecvBufferSize" in the INI file of the Agent 

For agent V8, default settings are 32768 ~ 32KB -> You might want to increase it to 1048576 ~ 1MB