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Git Daemon on Windows fatal error.

From
HSHector Santos <hsantos@isdg.net>
Date
May 31, 2017, 19:10 UTC
Message-ID
<592F153A.7020403@isdg.net>

Hi, I am relatively new to GIT (coming from CVS and SVN) and I am trying to setup "Git Daemon" on windows.

I got it working for Local network communications:

d:\local\wc5\testgit>git clone git://localhost/http clone10 Cloning into 'clone10'... remote: Counting objects: 526, done. remote: Compressing objects: 100% (520/520), done. Receiving objects: 100% (526/526), 1.38 MiB | 0 bytes/s, done. remote: Total 526 (delta 81), reused 0 (delta 0) Resolving deltas: 100% (81/81), done.

but it fails over the wire when using the public host domain:

d:\local\wc5\testgit>git clone git://public.example.dom/http clone11 Cloning into 'clone11'... remote: Counting objects: 526, done. remote: Compressing objects: 100% (520/520), done. remote: Total 526 (delta 81), reused 0 (delta 0) fatal: read error: Invalid argument fatal: early EOF fatal: index-pack failed

Sometimes its a different initial fatal error but generally the same. Once or twice, a repeat MAY work, but often not.

Short of digging into the git source code, I did as much research online and tried the various config options suggestions, changing the packet size, etc, to no avail.

To me, this seems like a "Socket Half Close" problem. If anyone is aware of what appears to be a long time "known" problem, and have a real solution, it would be greatly appreciated. Otherwise, I am very interesting in exploring the Half Close solution as I've seen similar behavior in other internet hosting servers in the past. A simple closesocket() wrapper funciton did the trick:

// HalfCloseSocket() performs a TCP Half Close by calling shutdown() // which signals the remote that no more data is going to be // sent (FIN signal). HalfCloseSocket() then goes into a // recv() loop to wait for the remote to acknowledge the close. // This acknowledgment comes as a recv() return value // of zero (less).

BOOL HalfCloseSocket(SOCKET socket)
{
     if (shutdown(socket,SD_SENT) != 0) {
         return FALSE;
     }
     int ret = 0;
     int msecs = 10; // poor man sanity check
     char buf[8*1024];
     while ((ret = recv(socket, buf,sizeof(buf),0)) > 0) {
         buf[0] = 0;
         buf[1] = 0;
         msecs--;
         if (msecs == 0) break;
     }
     return closesocket(socket);
}

While I rather not get into the source, I am willing to explore the effort if there is no other option.

Thanks for any input you can provide

Hector Santos Santronics Software, Inc.

-- 
HLS
Next: Torsten Bögershausen
Message 1 of 2 in “Git Daemon on Windows fatal error.”
  1. Hector SantosMay 31, 2017
  2. Torsten BögershausenJun 1, 2017

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