Non-stop 408 -request_timeout to B2

I was recently using the developer canary version (just prior to the “ (canary) 2018-04-02” release) and am now using the “ (canary) 2018-04-02” release.

Backing up to B2 from four computers (four separate buckets in one account), every one continually gets the following error:

408 - request_timeout: Error reading uploaded data: SocketTimeoutException(Read timed out)

Can anyone tell me why that would happen on all four machines on every backup?

Thank you.

It’s probably not related, but I get a similar error backing up to an SSH destination:

Failed: Socket read operation has timed out after -1 milliseconds.
Details: Renci.SshNet.Common.SshOperationTimeoutException: Socket read operation has timed out after -1 milliseconds.
  at Renci.SshNet.Session.WaitOnHandle (System.Threading.WaitHandle waitHandle, System.TimeSpan timeout) [0x00041] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.Session.Renci.SshNet.ISession.WaitOnHandle (System.Threading.WaitHandle waitHandle) [0x0000d] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.Channels.Channel.WaitOnHandle (System.Threading.WaitHandle waitHandle) [0x00000] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.Channels.Channel.Close (System.Boolean wait) [0x00095] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.Channels.ChannelSession.Close (System.Boolean wait) [0x00000] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.Channels.Channel.Close () [0x00000] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.SubsystemSession.Disconnect () [0x0004c] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.SftpClient.OnDisconnecting () [0x0000e] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.BaseClient.Disconnect () [0x00006] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.BaseClient.Dispose (System.Boolean disposing) [0x0000c] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.SftpClient.Dispose (System.Boolean disposing) [0x00000] in <1fab08b1278e43dabeb31c481785219b>:0
  at Renci.SshNet.BaseClient.Dispose () [0x00000] in <1fab08b1278e43dabeb31c481785219b>:0
  at Duplicati.Library.Backend.SSHv2.Dispose () [0x00008] in <cd4d7a20547f42cf8eac75b90eb5491d>:0
  at Duplicati.Library.Main.BackendManager.Dispose () [0x00077] in <118ad25945a24a3991f7b65e7a45ea1e>:0
  at Duplicati.Library.Main.Operation.BackupHandler.Run (System.String[] sources, Duplicati.Library.Utility.IFilter filter) [0x00860] in <118ad25945a24a3991f7b65e7a45ea1e>:0
  at Duplicati.Library.Main.Controller+<>c__DisplayClass16_0.<Backup>b__0 (Duplicati.Library.Main.BackupResults result) [0x0030f] in <118ad25945a24a3991f7b65e7a45ea1e>:0
  at Duplicati.Library.Main.Controller.RunAction[T] (T result, System.String[]& paths, Duplicati.Library.Utility.IFilter& filter, System.Action`1[T] method) [0x00072] in <118ad25945a24a3991f7b65e7a45ea1e>:0

It only happens occasionally so I haven’t taken the time to dig into it yet. Another user with the -1 milliseconds variant said their (reproducible) fix was to disable automatic ports on their firewall. In your case I’m wondering if it could be a similar issue but at the router level.


I actually deleted all the backup jobs from each machine, emptied the B2 buckets, and started over using the latest canary point release.

Let’s see what happens next…

Thanks for your help!