X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.25a (ClamAV 1.4.3/27930) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "D Tim Cummings" Received: from mail.triptera.au ([175.45.182.215] verified) by post.selbstdenker.com (CommuniGate Pro SMTP 6.3.18) with ESMTPS id 35382909 for webobjects-dev@wocommunity.org; Thu, 05 Mar 2026 00:49:11 +0100 Received-SPF: pass receiver=post.selbstdenker.com; client-ip=175.45.182.215; envelope-from=tim@triptera.com.au Received: from localhost (localhost [127.0.0.1]) by mail.triptera.au (Postfix) with ESMTP id 6A01FA04A4 for ; Thu, 5 Mar 2026 09:48:55 +1000 (AEST) X-Virus-Scanned: Debian amavisd-new at mail.triptera.au Received: from mail.triptera.au ([127.0.0.1]) by localhost (mail.triptera.au [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id awkRWu66Dz60 for ; Thu, 5 Mar 2026 09:48:50 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=triptera.com.au; s=202212; t=1772668130; bh=+okLubnLLRr4Qusga9+Ivvz6auSEYWvwgYyecl8ybag=; h=Date:Subject:To:References:From:In-Reply-To:From; b=kRDLKdu+jd+Nb2yfzpy48JkWHGc5Lcr2mqF26d47Lk/0iWq0ZC/BzC7OrmVUdGHHo xAH5piW5OOfkia07Mhz3S8ntomOi1fjwmkYQaJIYOOAMO6q9y0N5VrNbVtPzCSkm/I Va3YdHvtqIq28Izbpjcw0Q71232mS6Kuh6Len5hvAd5SK72FxUrsE2ZA6QyH2n80yC VvJNc1zIw+xSMtoTHkeg/XKkmiqe/XeNQtPZKZIMSh2VvmcOWdgqW9pq2nKKIHOBPz 5djHPg4KH5eBYkAtlhmo8DGG2FqZqZyFQ8uNHJ89Bfx8uqC1Co+xXwGP4Dgwtk6Zd6 XO3s0CgOzuIaQ== Content-Type: multipart/alternative; boundary="------------sfFH0obLT9nrGfgMIfsT6qkc" Message-ID: <55da9c58-dc70-4555-9c1a-908cf61537de@triptera.com.au> Date: Thu, 5 Mar 2026 09:48:50 +1000 MIME-Version: 1.0 Subject: Re: [WO-DEV] Help with Apache mod issues Content-Language: en-GB To: WebObjects & WOnder Development References: Autocrypt: addr=tim@triptera.com.au; keydata= xsFNBFq0tuUBEADBtNgYk7i9klKGHU8MvSEBlXugZyGE9O07XCJ7R68HT/3XL4OXHYt1PBxM mrnvcyGom0+kGvd0Wp4EH7IM0QYCDelw0UzfASBlAAvgKrK6+MNBC6F8w5YNmT8T4wAoDaTH ChwFNqOoyqe1zFw2H17qFRuC4X0mQ6ArrEhtzGaYLtdAWHxOf8jft+LDSjSqIiLMqur/zfVv V4IJ8jY9rIZ04j1lLDGxvD+4iKlFVm1L9jdJZzMHjkB0zXIlCOboapky08kYZ4fS+PXCsJOz hNw1Bra6XH3rjIM2mPHDFyk+n+gii9z3UAE9VORcqDDl75J4dS7pNyUqPskHxIJQ8HOa7xVT gfHndwmYRIflURzbv5hpIDgN6E9YPz2ZTDTdy9VYwd4l+LEUNphPY+O13NV357VImOKOYLGM rYfYJMb6Wh8XwL6X4MSV956DkdWGS78HJ0CTyWm0s/sh/DG/bQfPLZuID7C9HWhHi98eliN1 V7lmK8rgiRK2eFjTKRxuy4U02GFskKoW4Ja/qqSG7/carUQKrvlJxRnTMnZ4Pu/LGOy9B6Ph ELHMm0srR786wJSeCHWvifoEUORVIBghlCtSkQSqeXG3fPk0zt/wfl63GkRfmwDe7WqHCSe2 5pwD553FpuSP1D6Trh9Ny4uleITxm+xkNAELimyonM95FWweqwARAQABzSREIFRpbSBDdW1t aW5ncyA8dGltQHRyaXB0ZXJhLmNvbS5hdT7CwZcEEwEKAEECGwMFCwkIBwMFFQoJCAsFFgID AQACHgECF4ACGQEWIQRl8aMTFErJeHdWmq5+9CzFgbhWGAUCZ9ODCgUJEsMZ+wAKCRB+9CzF gbhWGJ8SD/4+iTQMfcCWMPviNqobnuST0OnQ2kZ5hghRYipzErXkBk0kBw0hoHwtuCcsB9iE vLWZE3V5yQnDSlFFPOsoG9sBabapZ5YjvbJ5GxHR6Lr2a8Qk6ifBnpGqcNpAJmgJDzLkiQpG DqMqp4xjQbOk4lT7r6CbIy8n7DbdootUPGXrXOcgm/UiMvScZYWcnWNs75BePdC4kz/1jy6E J0m16wn2/851o1Q7IJA8sq7VAYj0SvZvrh5wjyILZi/eC/HYyE+7y+TBUxkUP3RK13Y4Sy1R y64ZkIVsyCch6VLkwR1v/8cxfquDVgkyuGYWGGCfL8LaE3lnmScHHbKjhcsMMQVqJUE+MR8E p+j+CRP6W6V+rZnwP+hNgRRrPNY8UdYXBR/Rg9lhLqnSQbjd/rOpWcrMxfI/0A8XMaRJ5IOo 01V7lohSUdS7oUIJbrjTcUGXLATrZMs2Xgg6lFhjLQO1isq9sbfXWNemCyf40NoPqrjDwOm5 dRJTO+g5dkpwmQFpAl8qUywN2nZZkhaGicRE33mV7RXVPPQVAXI1iVdws6hk7xuCpHabsP9u Ewb3VkRNIYOCxFdL35Ethj89nCtr89YIk+a6Nd+EAipM4+wS9kEPzfw/woKgMHldrsSw6FJG sjrNHKjAe5/Cn1LaYM6omXrJaWDW2l33XxtzSSEIF5mHec7BTQRatLblARAA28WryHTE6AG7 /AGZwoCPiFz8D7iOoXLqWY/v0xc92m+52IfRbWnt31oMbfm3mBCSxn8XcRyiCkrL0GQ3l+1I T7ifRDXFOYx+scwNLfDt4x9QCxVdDh66Dc0xiB7eq+0qBYM2tmUfhh8ks/Ixqq+C+AfJXFcc sv8aFnDfSr/1a3nZg1cvBpfCkOiTKlr0teuVL/X9sYzU5hu4B6/dNoByZ/evDu+0+o/Wab3K QCMlmicNZ06qVCYspqikwNkn3WHtr0E1Noh30gKoKlC7RF2fGiGGKN9gdgocURn8Rg3oNs79 wbC+Z+G4oRQb8ckLmsecdmryTpfYJeQfRmamAixG80qHfCF0cPuyTt9iYBa2l83r7rFJa9ya 0eSDRLRjlgylhPSjMjTsWeXz5yh+SzTZbgHpvhZykj3BAcsCJNDbo/lOClX/cb2jh8hSwz60 luAFGDCT+naBSJL4aRFaoqPYQfqVrVQQZgzO+DCstOFV/Zx2f6tJ50E0wrIYyGGN5yloBV/N aTcHvkauwdJzdHe9thOy4aoEsgLQN2av07eUhrR015KSBjKgBain9ks6/OqMbXdRH8xZljEh ndwR1FmiDH4WodO6BukwjygbpukSl6yfj8SfeShr795eV0R5r2gMoAzb2fiJk1qPvF1R8dn/ yfvfvUjXcMUS+txzpnXkxu0AEQEAAcLBfAQYAQoAJgIbDBYhBGXxoxMUSsl4d1aarn70LMWB uFYYBQJn04MKBQkSwxn7AAoJEH70LMWBuFYYAPcP/29XHYH184kKs1i8a2+pjxM/4ZW9ThD5 Exgdhgot9cVE7HjR9s5n7beRZCEZfYxapasmQHPQIZOeZ9GCgjtrSK33oOgfmymdWrIFdrOA IQ8XqZ8W4LqoT+9DQjEMltsaAQcob4pD0YgSsJSMioslYq5B8DOjht1KUF6VasWozouk2jmx Lv3nZg/31RfG6KwUARPTXBc+3W3BVkBVgq2PSBNWy87qt22KGQMBInArVrTOFmUcSb0pM+ID UXs9AhRuls/Hbu0o2SuIqGNTeouzkxYECOCmHwgVJKteSppZ1ur+w+GVQpslW9XmMnPEb84D H43kPXLLFLdmA+zeplbkc+tQQBTu3kYuxZ8ZJvAewFyem7MmEI4zbrPK9DjXn0AxvCsY7wnh 4h5MvxqtL9rJ7+EYiLPY2bZtLv0rwGmKk6a7FYjjC+lShhft1aMKyhLwWz5MWfC+Jg0bUzFh oKiZUO82svUlnHyEdn3AMZPTFcWkOT0cEoOFMkPk6NIkHbsqj2uio7SSH9IteeZjsr0lXuVG LTRJ0opfBRuGAkw4ciXfPLtIhSQ41b+FFIVE2D4eaopi/SUl/GUcyyoBmCy3KzYZcc0CgbXW FEn7SJiMmQpoJoVoY3CjBHddGXEUDIOZKTr5bUEfBnG7onJC/i57Ue4BsdspTMX4wvAAs1YF Hx/F In-Reply-To: This is a multi-part message in MIME format. --------------sfFH0obLT9nrGfgMIfsT6qkc Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit You need to use prefork version of Apache. See deploy instructions on https://wiki.wocommunity.org/xwiki/bin/view/documentation/Home/Deployment/Platforms/Deploying%20on%20Linux/Deploying%20on%20Ubuntu%2022.04/ sudo apt install apache2 sudo a2dismod mpm_event sudo a2enmod mpm_prefork Cheers Tim On 5/03/2026 02:59, Jason Coffin wrote: > Hello all! > > I'm looking for help diagnosing an issue that we are seeing in a WebObjects production environment. I'm not the developer on the project, I'm the devops person and I know little about WebObjects. > > Here is our stack: > > Ubuntu version 20.04.1 > Apache version 2.4.41 > Project Wonder version 7.5-SNAPSHOT > WebObjects version 5.4.3 > > About once a day the Apache mod seems to stop working and no longer routes traffic to the WebObjects application. Restarting Apache solves the issue until it crops up again. The Apache error logs show these errors, in the given order, and they repeat several times: > > lock_file_section(): failed to lock (1 attempts): Resource deadlock avoided > ac_readConfiguration: WOShmem_lock() failed. Skipping reading config. > > Any idea what could be causing this issue? Should we be using a different version of Apache or the WebObjects mod? > > We are also considering alternative methods for hosting the WebObjects application. Should we consider removing the Apache mod requirement entirely? > > Thank you kindly! > > Jason Coffin > > ############################################################# > This message is sent to you because you are subscribed to > the mailing list. > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to > To switch to the INDEX mode, E-mail to > Send administrative queries to > --------------sfFH0obLT9nrGfgMIfsT6qkc Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit

You need to use prefork version of Apache. See deploy instructions on

https://wiki.wocommunity.org/xwiki/bin/view/documentation/Home/Deployment/Platforms/Deploying%20on%20Linux/Deploying%20on%20Ubuntu%2022.04/

sudo apt install apache2
sudo a2dismod mpm_event
sudo a2enmod mpm_prefork

Cheers

Tim

On 5/03/2026 02:59, Jason Coffin wrote:
Hello all!

I'm looking for help diagnosing an issue that we are seeing in a WebObjects production environment. I'm not the developer on the project, I'm the devops person and I know little about WebObjects.

Here is our stack:

Ubuntu version 20.04.1
Apache version 2.4.41
Project Wonder version 7.5-SNAPSHOT
WebObjects version 5.4.3

About once a day the Apache mod seems to stop working and no longer routes traffic to the WebObjects application. Restarting Apache solves the issue until it crops up again. The Apache error logs show these errors, in the given order, and they repeat several times:

lock_file_section(): failed to lock (1 attempts): Resource deadlock avoided
ac_readConfiguration: WOShmem_lock() failed. Skipping reading config.

Any idea what could be causing this issue? Should we be using a different version of Apache or the WebObjects mod? 

We are also considering alternative methods for hosting the WebObjects application. Should we consider removing the Apache mod requirement entirely?

Thank you kindly!

Jason Coffin

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