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 4CB26200C30 for ; Tue, 7 Mar 2017 19:32:42 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 4B4AC160B68; Tue, 7 Mar 2017 18:32:42 +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 95C7D160B65 for ; Tue, 7 Mar 2017 19:32:41 +0100 (CET) Received: (qmail 73179 invoked by uid 500); 7 Mar 2017 18:32:40 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 73168 invoked by uid 99); 7 Mar 2017 18:32:40 -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, 07 Mar 2017 18:32:40 +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 54105182919 for ; Tue, 7 Mar 2017 18:32:40 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 1.451 X-Spam-Level: * X-Spam-Status: No, score=1.451 tagged_above=-999 required=6.31 tests=[KAM_ASCII_DIVIDERS=0.8, RP_MATCHES_RCVD=-0.001, SPF_NEUTRAL=0.652] 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 jPzflwXkF41x for ; Tue, 7 Mar 2017 18:32:39 +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 EC2CE5FABF for ; Tue, 7 Mar 2017 18:32:38 +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 3B933E0054 for ; Tue, 7 Mar 2017 18:32:38 +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 ECDD124168 for ; Tue, 7 Mar 2017 18:32:37 +0000 (UTC) Date: Tue, 7 Mar 2017 18:32:37 +0000 (UTC) From: "Jing Zhao (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HDFS-11395) RequestHedgingProxyProvider#RequestHedgingInvocationHandler hides the Exception thrown from NameNode MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Tue, 07 Mar 2017 18:32:42 -0000 [ https://issues.apache.org/jira/browse/HDFS-11395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15899900#comment-15899900 ] Jing Zhao commented on HDFS-11395: ---------------------------------- The 005 patch looks good to me. Let me trigger the Jenkins. > RequestHedgingProxyProvider#RequestHedgingInvocationHandler hides the Exception thrown from NameNode > ---------------------------------------------------------------------------------------------------- > > Key: HDFS-11395 > URL: https://issues.apache.org/jira/browse/HDFS-11395 > Project: Hadoop HDFS > Issue Type: Bug > Components: ha > Reporter: Nandakumar > Assignee: Nandakumar > Attachments: HDFS-11395.000.patch, HDFS-11395.001.patch, HDFS-11395.002.patch, HDFS-11395.003.patch, HDFS-11395.004.patch, HDFS-11395.005.patch > > > When using RequestHedgingProxyProvider, in case of Exception (like FileNotFoundException) from ActiveNameNode, {{RequestHedgingProxyProvider#RequestHedgingInvocationHandler.invoke}} receives {{ExecutionException}} since we use {{CompletionService}} for the call. The ExecutionException is put into a map and wrapped with {{MultiException}}. > So for a FileNotFoundException the client receives {{MultiException(Map(ExecutionException(InvocationTargetException(RemoteException(FileNotFoundException)))))}} > It will cause problem in clients which are handling RemoteExceptions. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org