Return-Path: X-Original-To: apmail-kafka-dev-archive@www.apache.org Delivered-To: apmail-kafka-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 68C0318CE8 for ; Fri, 29 Jan 2016 07:01:40 +0000 (UTC) Received: (qmail 48743 invoked by uid 500); 29 Jan 2016 07:01:40 -0000 Delivered-To: apmail-kafka-dev-archive@kafka.apache.org Received: (qmail 48646 invoked by uid 500); 29 Jan 2016 07:01:39 -0000 Mailing-List: contact dev-help@kafka.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@kafka.apache.org Delivered-To: mailing list dev@kafka.apache.org Received: (qmail 48618 invoked by uid 99); 29 Jan 2016 07:01:39 -0000 Received: from Unknown (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 29 Jan 2016 07:01:39 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id 41BA3180539 for ; Fri, 29 Jan 2016 07:01:39 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -0.554 X-Spam-Level: X-Spam-Status: No, score=-0.554 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.554] autolearn=disabled Received: from mx1-us-east.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id BwWc-LDziSxb for ; Fri, 29 Jan 2016 07:01:35 +0000 (UTC) Received: from sjimx1.tivo.com (sjimx1.tivo.com [208.73.180.201]) by mx1-us-east.apache.org (ASF Mail Server at mx1-us-east.apache.org) with ESMTPS id DB85F42A21 for ; Fri, 29 Jan 2016 07:01:34 +0000 (UTC) Received-SPF: Pass (sjimx1.tivo.com: domain of jcheng@tivo.com designates 208.73.180.10 as permitted sender) identity=mailfrom; client-ip=208.73.180.10; receiver=sjimx1.tivo.com; envelope-from="jcheng@tivo.com"; x-sender="jcheng@tivo.com"; x-conformance=spf_only; x-record-type="v=spf1" Received-SPF: None (sjimx1.tivo.com: no sender authenticity information available from domain of postmaster@smtp.tivo.com) identity=helo; client-ip=208.73.180.10; receiver=sjimx1.tivo.com; envelope-from="jcheng@tivo.com"; x-sender="postmaster@smtp.tivo.com"; x-conformance=spf_only X-IronPort-AV: E=Sophos;i="5.22,362,1449561600"; d="scan'208";a="21449771" Received: from host-180-10.tivo.com (HELO smtp.tivo.com) ([208.73.180.10]) by sjimx1.tivo.com with ESMTP; 28 Jan 2016 23:01:28 -0800 Received: from SJEXMB02.Tivo.com ([fe80::8c4:998e:1aaa:dd7e]) by sjexca02.Tivo.com ([::1]) with mapi id 14.03.0279.002; Thu, 28 Jan 2016 23:01:27 -0800 From: James Cheng To: "dev@kafka.apache.org" Subject: Does kstreams have a key-value store that is backed by Kafka? Thread-Topic: Does kstreams have a key-value store that is backed by Kafka? Thread-Index: AQHRWmLfFaoOUqO03kOMETwTqOQSgg== Date: Fri, 29 Jan 2016 07:01:27 +0000 Message-ID: <8AC01482-F916-4552-B672-2FBD7BA74FEE@tivo.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.10.89.9] Content-Type: text/plain; charset="us-ascii" Content-ID: <3A9C627C7F56CE47A172651123A9C3D8@tivo.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Hi, I think I've heard that the upcoming Kafka Streams has something like Samza= 's local state key-value database. That is, something that looks like a key= -value store that saves all writes to Kafka, and that can then later be rei= nitialized from Kafka. Does such a thing exist? Can someone point me to it? I'd like to learn more= about it. Thanks, -James ________________________________ This email and any attachments may contain confidential and privileged mate= rial for the sole use of the intended recipient. Any review, copying, or di= stribution of this email (or any attachments) by others is prohibited. If y= ou are not the intended recipient, please contact the sender immediately an= d permanently delete this email and any attachments. No employee or agent o= f TiVo Inc. is authorized to conclude any binding agreement on behalf of Ti= Vo Inc. by email. Binding agreements with TiVo Inc. may only be made by a s= igned written agreement.