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Software components for data protection, secure storage and transfer

SimpleSFTP v4 Connection Lost since update

Also by EldoS: MsgConnect
Cross-platform protocol-independent communication framework for building peer-to-peer and client-server applications and middleware components.
#1852
Posted: 12/13/2006 16:38:15
by goubin dylan (Standard support level)
Joined: 09/19/2006
Posts: 13

We have been notified by our customers that there is much more CONNECTION LOST error since we have upgraded SimplesFTP component from 4.2 to 4.4.

The servers did not change nor our code.

Is there anything that can explain why such disconnections could happen (there is more that 5% of our customers who noticed that) after we upgrade the component.

We did not change the code, we just update component. What could have happened ?

(Server : SSH v2 - Linux Debian 3.1 Sarge - Scponly - Delphi 7)
#1855
Posted: 12/14/2006 00:52:19
by Eugene Mayevski (EldoS Corp.)

Connection is usually lost because one of the parties closes it. So you need to (a) handle OnError event and see whethere there's some SSH error there, and (b) ask the users to check their SSH server log.


Sincerely yours
Eugene Mayevski
#1877
Posted: 12/14/2006 19:12:45
by goubin dylan (Standard support level)
Joined: 09/19/2006
Posts: 13

Can i download previous releases for testing ? (4.3)

I guess that the versions released on september/october has made issues with our servers.
#1879
Posted: 12/15/2006 01:04:02
by Ken Ivanov (EldoS Corp.)

It's a good idea to try SBB5, it contains a lot of fixes and improvements comparing to SBB4. It is in RC stage at the moment, but it is stable enough. The release build will be published in 10-15 days.
#1880
Posted: 12/15/2006 01:33:53
by Eugene Mayevski (EldoS Corp.)

We don't keep old versions.

What exactly component are you using? If you are using SimpleSftpClient, then you can do the following:

1) set AutoAdjustTransferBlock to false
2) Set PipelineLength to 1
3) set UploadBlockSize to 32768
4) set DownloadBlockSize to 8192

This will slow down the transfer significantly but should revert the behaviour to the dumb one of previous versions.


Sincerely yours
Eugene Mayevski
Also by EldoS: CallbackFilter
A component to monitor and control disk activity, track file and directory operations (create, read, write, rename etc.), alter file data, encrypt files, create virtual files.

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