Re: (ITS#7607) Assertion triggers during many sequential transaction commits

[hyc@symas.com]

Howard Chu wrote:
> éÌØÑ ìÕËØÑÎÏ× wrote:
>> What can i do to help investigating this issue?
>> I'm not very familliar with lmdb sources so any suggestions on where to look
>> would be appreciated!
>
> I've installed a Win7 x64 VM here and compiled with gcc 4.8.0 and it works fine.
>

I've also installed Visual Studio 2012 Express and compiled with that, it's 
also working fine. Doesn't seem like there's an OpenLDAP bug here, must be a 
problem with your machine.

>> ó Õ×ÁÖÅÎÉÅÍ, éÌØÑ
>>
>>
>> 2013/5/24 Howard Chu <hyc@symas.com <mailto:hyc@symas.com>>
>>
>>      ilya.lukyanov@gmail.com <mailto:ilya.lukyanov@gmail.com> wrote:
>>
>>          Full_Name: Ilya Lukyanov
>>          Version: 2.4.35
>>          OS: Windows 7 x64
>>          URL: ftp://ftp.openldap.org/__incoming/ <ftp://ftp.openldap.org/incoming/>
>>          Submission from: (NULL) (95.25.254.250)
>>
>>
>>          I've built lmdb from source distribution of OpenLDAP 2.4.35 under
>>          Windows 7 x64
>>          under Visual Studio 2012. All tests included into source distribution pass
>>          successfully.
>>
>>          Then i'm executing my own test with code as follows:
>>          https://gist.github.com/__ilyalukyanov/5644971
>>          <https://gist.github.com/ilyalukyanov/5644971>
>>          And i'm allways get an asserion when executing near 32500-th
>>          mdb_txn_commit
>>          (line 2231 - assert(oldpg_txnid <= env->me_pglast);)
>>          I think this is a bug because if consider the scenario with separate
>>          usage of
>>          LightningDB under high write-load scenario, 32k commits is not enough.
>>
>>
>>      Your test runs fine on my Linux box. I don't currently have a Windows 7
>>      x64 test machine, won't be able to investigate this any time soon.


-- 
   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/