xmpp syncing sometimes fails

Please describe the problem.

I've been using git-annex for a few weeks now, and everything was working fine until today. Now, when git-annex goes to sync my files, it will hang for a while, and then display a red box on the left side, saying ! Synced with adam.liter. So, basically, it doesn't really sync. The logs say that it cannot read from the remote repository, which is set up on box.com and was working just fine until today.

I've tried reconfiguring my jabber account on all my devices with git-annex as well as deleting and remaking the box.com repository, and none of these steps have solved the problem.

What steps will reproduce the problem?

Making changes to any file located in the repository.

What version of git-annex are you using? On what operating system?

Mac OS X 10.8.4 and git-annex version 4.20130801-gc88bbc4.

Please provide any additional information below.

[2013-09-09 01:33:03 EDT] XMPPSendPack: Syncing with adam.liter 
Already up-to-date.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

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comment 1

From the small bit of log posted, it seems to be failing to sync over XMPP. Perhaps the XMPP server is down or it cannot connect? You can turn on debugging to get a lot more debugging about XMPP sync attempts.

Comment by joeyh.name — Mon Sep 9 06:01:18 2013

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comment 2

This is what is in the logs after I turned on debugging:

[2013-09-09 02:04:22 EDT] XMPPSendPack: finished running push Pushing "a29" (PushRequest (UUID "c96c8493-b702-4ca0-9a88-f8a38dd6c3f5")) True
[2013-09-09 02:04:22 EDT] XMPPSendPack: started running push Pushing "a29" (PushRequest (UUID "c96c8493-b702-4ca0-9a88-f8a38dd6c3f5"))
[2013-09-09 02:04:22 EDT] read: git ["--git-dir=/Users/adamliter/Library/texmf/.git","--work-tree=/Users/adamliter/Library/texmf","symbolic-ref","HEAD"]
[2013-09-09 02:04:22 EDT] read: git ["--git-dir=/Users/adamliter/Library/texmf/.git","--work-tree=/Users/adamliter/Library/texmf","show-ref","refs/heads/master"]
[2013-09-09 02:04:22 EDT] call: git ["--git-dir=/Users/adamliter/Library/texmf/.git","--work-tree=/Users/adamliter/Library/texmf","branch","-f","synced/master"]
[2013-09-09 02:04:22 EDT] XMPPSendPack: Syncing with adam.liter 
[2013-09-09 02:04:22 EDT] call: git ["--git-dir=/Users/adamliter/Library/texmf/.git","--work-tree=/Users/adamliter/Library/texmf","push","adam.liter","git-annex:refs/synced/6258750b-9b0d-4f05-b443-61f4fb0a3f66/YWRhbS5saXRlckBnbWFpbC5jb20=/git-annex","refs/heads/master:refs/synced/6258750b-9b0d-4f05-b443-61f4fb0a3f66/YWRhbS5saXRlckBnbWFpbC5jb20=/master"]
[2013-09-09 02:04:22 EDT] XMPPClient: sending: Pushing "a29" (StartingPush (UUID "6258750b-9b0d-4f05-b443-61f4fb0a3f66"))
[2013-09-09 02:04:22 EDT] XMPPClient: to client: a10/F4E99F98
[2013-09-09 02:04:23 EDT] XMPPReceivePack: timeout waiting for git send-pack output via XMPP
fatal: The remote end hung up unexpectedly
[2013-09-09 02:04:23 EDT] XMPPReceivePack: finished running push Pushing "a29" (StartingPush (UUID "c96c8493-b702-4ca0-9a88-f8a38dd6c3f5")) True
[2013-09-09 02:04:23 EDT] XMPPClient: sending: Pushing "a29" (ReceivePackDone (ExitFailure 128))
[2013-09-09 02:04:23 EDT] XMPPReceivePack: started running push Pushing "a29" (StartingPush (UUID "c96c8493-b702-4ca0-9a88-f8a38dd6c3f5"))
[2013-09-09 02:04:23 EDT] XMPPClient: to client: a10/F4E99F98
[2013-09-09 02:04:23 EDT] XMPPReceivePack: Syncing with adam.liter 
[2013-09-09 02:04:23 EDT] chat: git ["receive-pack","/Users/adamliter/Library/texmf"]
[2013-09-09 02:04:23 EDT] XMPPClient: sending: Pushing "a29" (ReceivePackOutput 1 "<elided>")
[2013-09-09 02:04:23 EDT] XMPPClient: to client: a10/F4E99F98
[2013-09-09 02:04:23 EDT] XMPPClient: sending: Pushing "a29" (ReceivePackOutput 2 "<elided>")
[2013-09-09 02:04:23 EDT] XMPPClient: to client: a10/F4E99F98
[2013-09-09 02:04:23 EDT] XMPPClient: received: ["Pushing \"a29\" (StartingPush (UUID \"c96c8493-b702-4ca0-9a88-f8a38dd6c3f5\"))"]
[2013-09-09 02:04:23 EDT] XMPPClient: received: ["Unknown message"]

Comment by Adam — Mon Sep 9 06:12:44 2013

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Could it be gmail.com XMPP throttling?

I was seeing similar error messages, until I registered for a different XMPP account at jabber.de and started using that instead of my gmail.com account.

My current suspicion is that it could be Google performing throttling on their XMPP service. See here: http://stackoverflow.com/questions/1843837/what-is-the-throttling-rate-that-gtalk-applies-to-xmpp-messages

Comment by Charl — Sun Mar 23 19:26:08 2014

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