RE: svn log hang

[Kaltenberger, Stefan]

Hi,

 It seems like issue #4425 [1] which is fixed in r1522892 and proposed
 for backport to Subversion
 1.8.4.

I tried the nightly build of TortoiseSVN [1]

svn, version 1.8.4-dev (under development)
   compiled Oct 16 2013, 23:05:56 on x86-microsoft-windows

(as I was not able to compile the 1.8.x branch myself using Visual
Studio 2008 because of a weird include path issue and the Subversion
nightly build site of Mr. Wright [2] delivers only a 404 page) and
I was not able to reproduce the issue using my test case so I guess
it is fixed.

Thank you!

Regards, Stefan

[1] http://nightlybuilds.tortoisesvn.net/latest/win32/full/
[2] http://people.apache.org/~hwright/svn/nightly/deploy/

svn log hang

[Kaltenberger, Stefan]

Hi,

I recently upgraded my Subversion client from version 1.7.5 to 1.8.3 and
from that time on I experience hangs when executing multiple 'svn log'
commands in a short amount of time. The hanging svn process consumes
all CPU cycles it gets but never finishes.

I can reproduce the problem using the following shell script (on Windows
using Cygwin):

#!/bin/bash
ROOT=http://example.com/svn/trunk;
for DIR in $(svn ls ${ROOT} | head -n 4); do
  svn log -v -l 5 ${ROOT}/${DIR} 21 | head -n 100  /dev/null
done

In my environment I need at least 4 svn processes to achieve the faulty
behavior. The hang only occurs if the output is truncated using the head
command (but it can be redirected to a normal file instead of /dev/null
which then contains the expected log messages).

Regards, Stefan

P.S.: Could you please keep me CC as I'm not subscribed to the list. Thanks.

Re: svn log hang

[Ivan Zhakov]

On 16 October 2013 16:36, Kaltenberger, Stefan
stefan.kaltenber...@fabasoft.com wrote:
 Hi,

 I recently upgraded my Subversion client from version 1.7.5 to 1.8.3 and
 from that time on I experience hangs when executing multiple 'svn log'
 commands in a short amount of time. The hanging svn process consumes
 all CPU cycles it gets but never finishes.

 I can reproduce the problem using the following shell script (on Windows
 using Cygwin):

 #!/bin/bash
 ROOT=http://example.com/svn/trunk;
 for DIR in $(svn ls ${ROOT} | head -n 4); do
   svn log -v -l 5 ${ROOT}/${DIR} 21 | head -n 100  /dev/null
 done

 In my environment I need at least 4 svn processes to achieve the faulty
 behavior. The hang only occurs if the output is truncated using the head
 command (but it can be redirected to a normal file instead of /dev/null
 which then contains the expected log messages).

It seems like issue #4425 [1] which is fixed in r1522892 and proposed
for backport to Subversion
1.8.4.

[1] http://subversion.tigris.org/issues/show_bug.cgi?id=4425

-- 
Ivan Zhakov
CTO | VisualSVN | http://www.visualsvn.com