From dev-return-70639-archive-asf-public=cust-asf.ponee.io@hbase.apache.org Fri Aug 17 23:51:05 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 DCE2E18067A for ; Fri, 17 Aug 2018 23:51:04 +0200 (CEST) Received: (qmail 99863 invoked by uid 500); 17 Aug 2018 21:51:03 -0000 Mailing-List: contact dev-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hbase.apache.org Delivered-To: mailing list dev@hbase.apache.org Received: (qmail 99714 invoked by uid 99); 17 Aug 2018 21:51:03 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 17 Aug 2018 21:51:03 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id 293781A2D85 for ; Fri, 17 Aug 2018 21:51:03 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -110.301 X-Spam-Level: X-Spam-Status: No, score=-110.301 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, 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 (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id QJALAA80Ioc9 for ; Fri, 17 Aug 2018 21:51:02 +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 564C95F27B for ; Fri, 17 Aug 2018 21:51:01 +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 834F1E12FE for ; Fri, 17 Aug 2018 21:51:00 +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 28BAB2468F for ; Fri, 17 Aug 2018 21:51:00 +0000 (UTC) Date: Fri, 17 Aug 2018 21:51:00 +0000 (UTC) From: "Thomas D'Silva (JIRA)" To: dev@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HBASE-21069) NPE in StoreScanner.updateReaders causes RS to crash MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Thomas D'Silva created HBASE-21069: -------------------------------------- Summary: NPE in StoreScanner.updateReaders causes RS to crash Key: HBASE-21069 URL: https://issues.apache.org/jira/browse/HBASE-21069 Project: HBase Issue Type: Bug Affects Versions: 1.3.2 Reporter: Thomas D'Silva I see the following NPE in the region server log for a table that is taking heavy writes. I am not sure how the {{memStoreScanners}} variable gets set to null. {code} 2018-08-17 19:59:23,682 DEBUG [MemStoreFlusher.1] regionserver.HRegionFileSystem - Committing store file ... 2018-08-17 19:59:23,684 INFO [MemStoreFlusher.1] regionserver.HStore - Added hdfs://...., entries=919170, sequenceid=275114, filesize=22.6 M 2018-08-17 19:59:23,689 FATAL [MemStoreFlusher.1] regionserver.HRegionServer - ABORTING region server iotperf1dchbase1a-dnds22-2-prd.eng.sfdc.net,60020,1533915690501: Replay of WAL required. Forcing server shutdown org.apache.hadoop.hbase.DroppedSnapshotException: region: ...... at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2581) at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2258) at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2220) at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2106) at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2031) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:508) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:478) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76) at org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.NullPointerException at java.util.ArrayList.(ArrayList.java:177) at org.apache.hadoop.hbase.regionserver.StoreScanner.updateReaders(StoreScanner.java:827) at org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:1160) at org.apache.hadoop.hbase.regionserver.HStore.updateStorefiles(HStore.java:1133) at org.apache.hadoop.hbase.regionserver.HStore.access$900(HStore.java:120) at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.commit(HStore.java:2487) at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2536) ... 9 more 2018-08-17 19:59:23,692 FATAL [MemStoreFlusher.1] regionserver.HRegionServer - RegionServer abort: loaded coprocessors are: [org.apache.hadoop.hbase.security.access.AccessController, org.apache.phoenix.coprocessor.ScanRegionObserver, org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver, org.apache.phoenix.hbase.index.Indexer, org.apache.phoenix.coprocessor.GroupedAggregateRegionObserver, org.apache.hadoop.hbase.security.token.TokenProvider, org.apache.phoenix.coprocessor.ServerCachingEndpointImpl] {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)