From users-return-50879-archive-asf-public=cust-asf.ponee.io@activemq.apache.org Mon Jan 28 16:14:10 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 4842D18060E for ; Mon, 28 Jan 2019 16:14:10 +0100 (CET) Received: (qmail 19336 invoked by uid 500); 28 Jan 2019 15:14:09 -0000 Mailing-List: contact users-help@activemq.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@activemq.apache.org Delivered-To: mailing list users@activemq.apache.org Delivered-To: moderator for users@activemq.apache.org Received: (qmail 58099 invoked by uid 99); 28 Jan 2019 14:43:28 -0000 X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 3.948 X-Spam-Level: *** X-Spam-Status: No, score=3.948 tagged_above=-999 required=6.31 tests=[FORGED_HOTMAIL_RCVD2=1.187, FREEMAIL_ENVFROM_END_DIGIT=0.25, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_SOFTFAIL=0.972, URI_HEX=1.313, URI_TRY_3LD=0.227] autolearn=disabled Date: Mon, 28 Jan 2019 08:43:25 -0600 (CST) From: tolk To: users@activemq.apache.org Message-ID: <1548686605808-0.post@n4.nabble.com> Subject: Retroactive consumer explained in more detail MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit The documentation for retroactive consumers is quite brief and doesn't really explain how subscribers with missed messages are detected. Does AMQ keep a cache of recent subscribers and associated cursors? or does it always send all the cached 'retroactive' messages on a new connection? Can anyone provide more detail into the mechanism at play here. Thanks. -- Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html