Return-Path: X-Original-To: apmail-hbase-dev-archive@www.apache.org Delivered-To: apmail-hbase-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id AB3A310CD8 for ; Wed, 15 Oct 2014 16:42:36 +0000 (UTC) Received: (qmail 33150 invoked by uid 500); 15 Oct 2014 16:42:35 -0000 Delivered-To: apmail-hbase-dev-archive@hbase.apache.org Received: (qmail 33042 invoked by uid 500); 15 Oct 2014 16:42:34 -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 32891 invoked by uid 99); 15 Oct 2014 16:42:34 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 15 Oct 2014 16:42:34 +0000 Date: Wed, 15 Oct 2014 16:42:34 +0000 (UTC) From: "Khaled Elmeleegy (JIRA)" To: dev@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HBASE-12270) A bug in the bucket cache, with cache blocks on write enabled MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Khaled Elmeleegy created HBASE-12270: ---------------------------------------- Summary: A bug in the bucket cache, with cache blocks on write enabled Key: HBASE-12270 URL: https://issues.apache.org/jira/browse/HBASE-12270 Project: HBase Issue Type: Bug Affects Versions: 0.98.6.1 Environment: I can reproduce it on a simple 2 node cluster, one running the master and another running a RS. I was testing on ec2. I used the following configurations for the cluster. hbase-env:HBASE_REGIONSERVER_OPTS=-Xmx2G -XX:MaxDirectMemorySize=5G -XX:CMSInitiatingOccupancyFraction=88 -XX:+AggressiveOpts -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -Xlog gc:/tmp/hbase-regionserver-gc.log hbase-site: hbase.bucketcache.ioengine=offheap hbase.bucketcache.size=4196 hbase.rs.cacheblocksonwrite=true hfile.block.index.cacheonwrite=true hfile.block.bloom.cacheonwrite=true Reporter: Khaled Elmeleegy Priority: Critical In my experiments, I have writers streaming their output to HBase. The reader powers a web page and does this scatter/gather, where it reads 1000 keys written last and passes them the the front end. With this workload, I get the exception below at the region server. Again, I am using HBAse (0.98.6.1). Any help is appreciated. 2014-10-10 15:06:44,173 ERROR [B.DefaultRpcServer.handler=62,queue=2,port=60020] ipc.RpcServer: Unexpected throwable object java.lang.IllegalArgumentException at java.nio.Buffer.position(Buffer.java:236) at org.apache.hadoop.hbase.util.ByteBufferUtils.skip(ByteBufferUtils.java:434) at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$ScannerV2.readKeyValueLen(HFileReaderV2.java:849) at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$ScannerV2.next(HFileReaderV2.java:760) at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekAtOrAfter(StoreFileScanner.java:248) at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seek(StoreFileScanner.java:152) at org.apache.hadoop.hbase.regionserver.StoreScanner.seekScanners(StoreScanner.java:317) at org.apache.hadoop.hbase.regionserver.StoreScanner.(StoreScanner.java:176) at org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:1780) at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.(HRegion.java:3758) at org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1950) at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1936) at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1913) at org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3157) at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29587) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2027) at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108) at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:114) at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:94) at java.lang.Thread.run(Thread.java:744) -- This message was sent by Atlassian JIRA (v6.3.4#6332)