From dev-return-319447-archive-asf-public=cust-asf.ponee.io@lucene.apache.org Thu Apr 19 15:38:07 2018 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 836F2180638 for ; Thu, 19 Apr 2018 15:38:06 +0200 (CEST) Received: (qmail 96185 invoked by uid 500); 19 Apr 2018 13:38:05 -0000 Mailing-List: contact dev-help@lucene.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@lucene.apache.org Delivered-To: mailing list dev@lucene.apache.org Received: (qmail 96117 invoked by uid 99); 19 Apr 2018 13:38:05 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 19 Apr 2018 13:38:05 +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 91958180731 for ; Thu, 19 Apr 2018 13:38:04 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.511 X-Spam-Level: X-Spam-Status: No, score=-109.511 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id cPn8zi2i2n84 for ; Thu, 19 Apr 2018 13:38:03 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 84FFE5F24C for ; Thu, 19 Apr 2018 13:38:03 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id B8FBCE014A for ; Thu, 19 Apr 2018 13:38:02 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 768F2241CE for ; Thu, 19 Apr 2018 13:38:00 +0000 (UTC) Date: Thu, 19 Apr 2018 13:38:00 +0000 (UTC) From: "Shalin Shekhar Mangar (JIRA)" To: dev@lucene.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (SOLR-11833) Allow searchRate trigger to delete replicas MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/SOLR-11833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16444056#comment-16444056 ] Shalin Shekhar Mangar commented on SOLR-11833: ---------------------------------------------- bq. PULL replicas are not searchable, if I understand it correctly, so it doesn't make sense to include them in search rate monitoring. They participate in searches. They don't index data but periodically pull the latest segments from the leader. bq. Rather, we could support rate but set aboveRate to this value and belowRate to 0 - this will reproduce the behavior from 7.2 where there was no belowOp. +1 > Allow searchRate trigger to delete replicas > ------------------------------------------- > > Key: SOLR-11833 > URL: https://issues.apache.org/jira/browse/SOLR-11833 > Project: Solr > Issue Type: Sub-task > Security Level: Public(Default Security Level. Issues are Public) > Components: AutoScaling > Reporter: Andrzej Bialecki > Assignee: Andrzej Bialecki > Priority: Major > Fix For: 7.4, master (8.0) > > Attachments: SOLR-11833.patch, SOLR-11833.patch > > > Currently {{SearchRateTrigger}} generates events when search rate thresholds are exceeded, and {{ComputePlanAction}} computes ADDREPLICA actions in response - adding replicas should allow the search rate to be reduced across the increased number of replicas. > However, once the peak load period is over the collection is left with too many replicas, which unnecessarily tie cluster resources. {{SearchRateTrigger}} should detect situations like this and generate events that should cause some of these replicas to be deleted. > {{SearchRateTrigger}} should use hysteresis to avoid thrashing when the rate is close to the threshold. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org For additional commands, e-mail: dev-help@lucene.apache.org