window size shrinks until it gets to 0 and session times out (wodSFTP / wodSFTP.NET / wodSFTPdll)

by DNixon, Wednesday, December 14, 2016, 10:01 (3121 days ago)

Large file transfers to an important customer are repeatedly failing. The trace shows SFTPLib.NET sending smaller and smaller window sizes until it gets to a window size of zero, which causes the session to eventually timeout. We were using version 3.4.9.132, but also tried the latest version 3.4.9.134. The transfers work with CoreFTP.

Complete thread:

window size shrinks until it gets to 0 and session times out DNixon 2016-12-14, 10:01
- window size shrinks until it gets to 0 and session times out Jasmine 2016-12-14, 10:22
  - window size shrinks until it gets to 0 and session times out DNixon 2016-12-14, 10:36
    - window size shrinks until it gets to 0 and session times out Jasmine 2016-12-14, 10:38
      - window size shrinks until it gets to 0 and session times out DNixon 2016-12-14, 10:48
        
        window size shrinks until it gets to 0 and session times out Jasmine 2016-12-14, 11:41

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window size shrinks until it gets to 0 and session times out (wodSFTP / wodSFTP.NET / wodSFTPdll)

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