Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 2245A2009F8 for ; Fri, 3 Jun 2016 20:36:01 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 20F04160A50; Fri, 3 Jun 2016 18:36:01 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 8C5F8160A3B for ; Fri, 3 Jun 2016 20:36:00 +0200 (CEST) Received: (qmail 93149 invoked by uid 500); 3 Jun 2016 18:35:59 -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 93132 invoked by uid 99); 3 Jun 2016 18:35:59 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 03 Jun 2016 18:35:59 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 4A8412C1F5D for ; Fri, 3 Jun 2016 18:35:59 +0000 (UTC) Date: Fri, 3 Jun 2016 18:35:59 +0000 (UTC) From: "Guozhang Wang (JIRA)" To: dev@kafka.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (KAFKA-3777) Extract the LRU cache out of RocksDBStore MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Fri, 03 Jun 2016 18:36:01 -0000 [ https://issues.apache.org/jira/browse/KAFKA-3777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15314561#comment-15314561 ] Guozhang Wang commented on KAFKA-3777: -------------------------------------- Adding to what Jay mentioned, we are already disabling the WAL logging of RocksDB in Kafka Streams. > Extract the LRU cache out of RocksDBStore > ----------------------------------------- > > Key: KAFKA-3777 > URL: https://issues.apache.org/jira/browse/KAFKA-3777 > Project: Kafka > Issue Type: Sub-task > Components: streams > Affects Versions: 0.10.1.0 > Reporter: Eno Thereska > Fix For: 0.10.1.0 > > > The LRU cache that is currently inside the RocksDbStore class. As part of KAFKA-3776 it needs to come outside of RocksDbStore and be a separate component used in: > 1. KGroupedStream.aggregate() / reduce(), > 2. KStream.aggregateByKey() / reduceByKey(), > 3. KTable.to() (this will be done in KAFKA-3779). > As all of the above operators can have a cache on top to deduplicate the materialized state store in RocksDB. > The scope of this JIRA is to extract out the cache of RocksDBStore, and keep them as item 1) and 2) above; and it should be done together / after KAFKA-3780. -- This message was sent by Atlassian JIRA (v6.3.4#6332)