From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Nala Ginrut Newsgroups: gmane.lisp.guile.user Subject: Re: [ANN] a graph database: sph-dg Date: Tue, 04 Nov 2014 14:19:56 +0800 Organization: HFG Message-ID: <1415081996.17819.34.camel@Renee-desktop.suse> References: <5457DA07.6050604@posteo.eu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1415082029 25641 80.91.229.3 (4 Nov 2014 06:20:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 4 Nov 2014 06:20:29 +0000 (UTC) Cc: guile-user@gnu.org To: tantalum Original-X-From: guile-user-bounces+guile-user=m.gmane.org@gnu.org Tue Nov 04 07:20:23 2014 Return-path: Envelope-to: guile-user@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XlXTb-0008Rk-DP for guile-user@m.gmane.org; Tue, 04 Nov 2014 07:20:23 +0100 Original-Received: from localhost ([::1]:38692 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlXTa-0004ql-Uj for guile-user@m.gmane.org; Tue, 04 Nov 2014 01:20:22 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:60444) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlXTM-0004nS-OY for guile-user@gnu.org; Tue, 04 Nov 2014 01:20:14 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XlXTH-0007Ke-3T for guile-user@gnu.org; Tue, 04 Nov 2014 01:20:08 -0500 Original-Received: from mail-pa0-x231.google.com ([2607:f8b0:400e:c03::231]:51913) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XlXTG-0007Hh-Tk for guile-user@gnu.org; Tue, 04 Nov 2014 01:20:03 -0500 Original-Received: by mail-pa0-f49.google.com with SMTP id lj1so13592779pab.8 for ; Mon, 03 Nov 2014 22:20:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:subject:from:to:cc:date:in-reply-to:references :organization:content-type:mime-version:content-transfer-encoding; bh=Dib7wP2+REaI/WtIqLOSV75x51oU7adAHPDYINxBBIg=; b=w+XmrMKmiRQ1KJXGv8LmXyULYsqq4fGoTF/r0qKeNEHSF0fwvfqUzmma2WT1hyQCAa K+emi//lj6ETXLo2sMHV99BpLE1FdZbpBG5M6Ydf9R59JatGK/cv85zb/hbko31gT6u9 ZysSdtLibddI3Llp7HmSwuNJBxMq6a25PbvTnbNMPXiWZTxih/qcKUAkeVXcbLO/5M+I pPxyqjLUROMdnyEZZlG3BapPFSjIQSxxV7c3mPKFaddvMsGWPHKwjJkvYns5KICPrLIb y+7n2yTP5KQ6UOCAPrxiioCMXiyZPs/6kCR3ymglL8q6HTKkkJ4XLxHY0G8Fx/qOtEFA mIXg== X-Received: by 10.70.96.227 with SMTP id dv3mr8175284pdb.119.1415082001285; Mon, 03 Nov 2014 22:20:01 -0800 (PST) Original-Received: from [147.2.147.15] ([203.192.156.9]) by mx.google.com with ESMTPSA id hm1sm18878602pdb.84.2014.11.03.22.19.58 for (version=SSLv3 cipher=RC4-SHA bits=128/128); Mon, 03 Nov 2014 22:20:00 -0800 (PST) In-Reply-To: <5457DA07.6050604@posteo.eu> X-Mailer: Evolution 3.4.4 X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:400e:c03::231 X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane.org@gnu.org Original-Sender: guile-user-bounces+guile-user=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.user:11621 Archived-At: Hi tantalum! This seems cool! I'm considering a better memory mapped database for storing sessions in Artanis. Now I'm using common hash table. I saw you project is based on LMDB which is a lightweight no-sql DB. Is it proper for my purpose? Thanks! On Mon, 2014-11-03 at 20:39 +0100, tantalum wrote: > hi. in the past year i have implemented my idea of how a basic graph > database should look like, with guile. and today it seems quite stable > and usable. > > it uses a memory-mapped data store to persist bi-directionally ordered > (or weighted) pairs (what would be edges of a graph), bytevectors, > strings and signed integers as well as references to files in the > filesystem. > it currently supports at most one open database per process and a socket > based interface for inter-database communication. it is supposed to be > concurrency safe and there are extended and experimental features > available in a separate sph-lib-dg library (http://sph.io/content/3217). > for example a semantic userspace filesystem, special query processors or > procedures for the creation of data structures like sets and lists using > pairs/edges > > here is the link to the project page: http://sph.io/content/2faf >