From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: * X-Spam-Status: No, score=1.4 required=5.0 tests=MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE,SUBJ_ALL_CAPS,URIBL_SBL,URIBL_SBL_A autolearn=no autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 628c8c49 for ; Wed, 7 Nov 2018 16:40:53 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 27B10A22FF; Thu, 8 Nov 2018 02:40:52 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id B8A46A22A0; Thu, 8 Nov 2018 02:40:18 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id AB0CEA22A0; Thu, 8 Nov 2018 00:10:50 +1000 (AEST) Received: from freefriends.org (freefriends.org [96.88.95.60]) by minnie.tuhs.org (Postfix) with ESMTP id 30DDD94111 for ; Thu, 8 Nov 2018 00:10:50 +1000 (AEST) X-Envelope-From: arnold@skeeve.com Received: from freefriends.org (localhost [127.0.0.1]) by freefriends.org (8.14.9/8.14.9) with ESMTP id wA7E5kSq030567; Wed, 7 Nov 2018 07:05:46 -0700 Received: (from arnold@localhost) by freefriends.org (8.14.9/8.14.9/submit) id wA7E5j56030566; Wed, 7 Nov 2018 14:05:45 GMT From: arnold@skeeve.com Message-Id: <201811071405.wA7E5j56030566@freefriends.org> X-Authentication-Warning: frenzy.freefriends.org: arnold set sender to arnold@skeeve.com using -f Date: Wed, 07 Nov 2018 07:05:45 -0700 To: lm@mcvoy.com, arnold@skeeve.com References: <20181105034940.GE2660@mcvoy.com> <20181105154404.GA19335@mcvoy.com> <201811051838.wA5Icosk029361@freefriends.org> <20181105190424.GE19335@mcvoy.com> <201811070858.wA78wvfU016909@freefriends.org> In-Reply-To: <201811070858.wA78wvfU016909@freefriends.org> User-Agent: Heirloom mailx 12.4 7/29/08 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: Re: [TUHS] YP / NIS / NIS+ / LDAP X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tuhs@minnie.tuhs.org, gtaylor@tnetconsulting.net Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" arnold@skeeve.com wrote: > Larry McVoy wrote: > > > The caches worked across reboots. I left not long after we completed 1.0, > > Bob Mende (RIP) and some other folks took the mmap based dbm (I called > > mdbm) and put locks in each page so you could have multiple writers. > > That code made its way to yahoo and just got used for everything, they > > made it C++ (not a fan of that but whatever) and evolved it farther than > > I ever imagined. They had DBs that were 100's of gigs ~20 years ago. > > They open sourced their stuff. > > Any idea where to find this now? > > Thanks, > > Arnold And, I *still* haven't learned to ask Google first. A quick search finds these: https://github.com/yahoo/mdbm https://yahooeng.tumblr.com/post/104861108931/mdbm-high-speed-database Enjoy, Arnold