Push failing with probable HgFnCache lock failure

Andrey Bolibrukh's Avatar

Andrey Bolibrukh

20 May, 2013 08:32 AM

Windows 2008R2 64x server hosting HgLab on IIS 7.5; couldnt fathom the version, but I did DL it from hglabhq less than a week ago.

It works great, except when I have to push; then it crashes.

I am attaching the logfiles for "Debug" and "Trace" ("global" and "trace" respectively) levels; I've downloaded the HgSharp src from bitbucket and tried to comb through what was going on, but ultimately failed (looks out of date tbh). Please take a look at them.

TL;DR for problem is: the push initiates, the bundle gets saved, starts committing, tries to acquire lock (and apparently succeeds) on HgFnCache, but crashes after that.

Security permissions for every folder I could think of (repo folder root, hglab, even c:/windows/temp) are there for both IIS_USERS and Everyone, just in case, yet this isnt going anywhere.

Ben, this is Danila, I need help! (c)

  1. Support Staff 1 Posted by Anton Gogolev on 20 May, 2013 09:01 AM

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    This is most likely due to KB2468871 missing on your server. Try installing it and see if that helps.

  2. 2 Posted by Andrey Bolibruk... on 20 May, 2013 09:53 AM

    Andrey Bolibrukh's Avatar

    Anton, I think I had it already, not 100% sure tho.

    Installed it anyways, same error. Restarted the server, no use :(. Same crashing point.

    Got some more tracing, all about the same thing tho -- hg push on client, HgFnCacheStore tries to acquire lock on server, IIS worker process goes down.

    What steps would one take to diagnose this more closely? I grew fond of HgLab's easy installation / clean ui, and would like to keep it.

  3. Support Staff 3 Posted by Anton Gogolev on 20 May, 2013 10:04 AM

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    That's strange. Next option will be enabling 32-bit applications support for the Application Pool where HgLab is running.

  4. Support Staff 4 Posted by Anton Gogolev on 20 May, 2013 10:06 AM

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    And while you're at it, could you please ensure that all updates to .NET 4.0 are indeed installed? Maybe KB2600211 will help? With Microsoft you'll never know...

  5. 5 Posted by Andrey Bolibruk... on 20 May, 2013 10:45 AM

    Andrey Bolibrukh's Avatar

    Alright, I switched the .net 4.0 app pool to 32bit, and it no longer fails, and everything seems to be working fine. Thanks alot for the solution!

    I am slightly hesitant to just leave the 4.0 app pool in the 32bit mode, though; the KB2600211 is up and running but switching back to 64x landed me back right where I was before; the patches seem to have had no effect.

    What else would I be able to do in order to fix the problem?

  6. Support Staff 6 Posted by Anton Gogolev on 20 May, 2013 10:53 AM

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    When I was testing HgLab on a virtual machine I was getting exactly the
    same error, with references to kernelbase32.dll in Event Log. I as able to
    fix it by installing all updates to .NET 4.0 I could find. Maybe, I'll try
    and pinpoint the exact one that solves the problem, but for now you can
    leave 32-bit apps settings on -- it really affects nothing with respect to
    HgLab. If you're wary of this, you can create a separate Application Pool
    solely for HgLab and tweak settings over there.

    Unfortunately, this is all I can tell you for the moment.

  7. 7 Posted by Andrey Bolibruk... on 20 May, 2013 11:04 AM

    Andrey Bolibrukh's Avatar

    Sounds great. Thanks alot, Anton, for the support, for creating HgLab and for keeping it free!

  8. Andrey Bolibrukh closed this discussion on 20 May, 2013 11:04 AM.

  9. Anton Gogolev re-opened this discussion on 20 May, 2013 11:32 AM

  10. Support Staff 8 Posted by Anton Gogolev on 20 May, 2013 11:32 AM

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    Thanks for kind words. There's one thing to note, though: I'm actually
    planning on building a business around HgLab and I'm anticipating to start
    selling it as soon as bugs like this one are ironed out. It will be a
    tiered licensing model with reasonably low price for small teams (like, $50
    for up to 5 people, discounted upgrades, all that jazz). I'll be offering a
    free starter license (and discounts for upgrades to more advanced ones) to
    all participants of this Support forum.

    Hope I haven't disappointed you much.

  11. 9 Posted by Andrey Bolibruk... on 20 May, 2013 11:37 AM

    Andrey Bolibrukh's Avatar

    I looked through the HgSharp commits at some point, noting the timeline and ~2commits / day, compared that to how fast you were at answering questions on the forum and figured you'd wanna build on it at some point; what you are doing does seem to bear the quality mark of a business that would have a chance.

    Best of luck with it.

  12. Andrey Bolibrukh closed this discussion on 21 May, 2013 12:56 PM.

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