From user-return-55692-apmail-hbase-user-archive=hbase.apache.org@hbase.apache.org Tue Jan 15 01:38:33 2019 Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 6C8F41942D for ; Tue, 15 Jan 2019 01:37:39 +0000 (UTC) Received: (qmail 98684 invoked by uid 500); 15 Jan 2019 01:37:37 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 98591 invoked by uid 500); 15 Jan 2019 01:37:37 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 98578 invoked by uid 99); 15 Jan 2019 01:37:36 -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; Tue, 15 Jan 2019 01:37:36 +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 1862F1805DE for ; Tue, 15 Jan 2019 01:37:36 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 4.81 X-Spam-Level: **** X-Spam-Status: No, score=4.81 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HTML_MESSAGE=2, RDNS_NONE=3, T_SPF_PERMERROR=0.01] autolearn=disabled Authentication-Results: spamd3-us-west.apache.org (amavisd-new); dkim=pass (1024-bit key) header.d=esgyn.cn Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id PXk9FA6h4kVI for ; Tue, 15 Jan 2019 01:37:32 +0000 (UTC) Received: from mail.esgyn.cn (unknown [61.152.248.190]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTPS id 3FF9160FB9 for ; Tue, 15 Jan 2019 01:37:32 +0000 (UTC) Received: from mail.esgyn.cn (mail.esgyn.cn [127.0.0.1]) by mail.esgyn.cn (Postfix) with ESMTP id 48D463C03DC56 for ; Tue, 15 Jan 2019 09:39:20 +0800 (CST) Authentication-Results: mail.esgyn.cn (amavisd-new); dkim=pass (1024-bit key) reason="pass (just generated, assumed good)" header.d=esgyn.cn DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=esgyn.cn; h= content-language:x-mailer:content-type:content-type:mime-version :message-id:date:date:subject:subject:to:from:from; s=dkim; t= 1547516360; x=1550108361; bh=rwNs7836LCeaUsmPakm1XFzw5R3S2mdqx1v OE+r7oPg=; b=zUjlLYA20nMGLndqUCHG23oHZCiwepp98gHrWKzXlYpt2U5j9ad jM4dxe2XXuNZV8+iEwJQKRY70o1ryGmnxGcRjLus7AbzlXaeeZFY6EFeHMk3dyIs vHHSjIVS+Hii2zUQ3s3SA6Pz3ouogY+0cKX1f74FITATgayvkDZhBTXU= X-Virus-Scanned: amavisd-new at mail.esgyn.cn Received: from mail.esgyn.cn ([127.0.0.1]) by mail.esgyn.cn (mail.esgyn.cn [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id S3cRcjVztcc9 for ; Tue, 15 Jan 2019 09:39:20 +0800 (CST) Received: from ESGSHPC007 (unknown [58.16.181.31]) by mail.esgyn.cn (Postfix) with ESMTPSA id C523A3C03DC3E for ; Tue, 15 Jan 2019 09:39:19 +0800 (CST) From: "ming.liu" To: Subject: coprocessor and hbase.regionserver.handler.count Date: Tue, 15 Jan 2019 09:37:12 +0800 Message-ID: <040401d4ac72$dd1ab030$97501090$@esgyn.cn> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0405_01D4ACB5.EB3DF030" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AdSscpt4AdOkXo7zRPKsbfebyAwTtQ== Content-Language: zh-cn ------=_NextPart_000_0405_01D4ACB5.EB3DF030 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi, all, Our application is using coprocessor to communicate with HBase, not using the get()/put() client API. When there are large concurrency, the performance is degrading very fast. I checked there is hbase.regionserver.handler.count which control how many thread in RS to handle client request. Will coprocessor use those same threads? thanks, Ming ------=_NextPart_000_0405_01D4ACB5.EB3DF030--