Return-Path: X-Original-To: apmail-cassandra-commits-archive@www.apache.org Delivered-To: apmail-cassandra-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 7E3C618DF9 for ; Wed, 28 Oct 2015 17:17:02 +0000 (UTC) Received: (qmail 88949 invoked by uid 500); 28 Oct 2015 17:16:28 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 88874 invoked by uid 500); 28 Oct 2015 17:16:28 -0000 Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list commits@cassandra.apache.org Received: (qmail 88856 invoked by uid 99); 28 Oct 2015 17:16:28 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 28 Oct 2015 17:16:28 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id B1AFC2C1F57 for ; Wed, 28 Oct 2015 17:16:27 +0000 (UTC) Date: Wed, 28 Oct 2015 17:16:27 +0000 (UTC) From: "Tyler Hobbs (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (CASSANDRA-10614) AssertionError while flushing memtables 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/CASSANDRA-10614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14978789#comment-14978789 ] Tyler Hobbs commented on CASSANDRA-10614: ----------------------------------------- It looks like this was introduced by CASSANDRA-9664, and is likely the cause of CASSANDRA-10609. > AssertionError while flushing memtables > --------------------------------------- > > Key: CASSANDRA-10614 > URL: https://issues.apache.org/jira/browse/CASSANDRA-10614 > Project: Cassandra > Issue Type: Bug > Components: Core, Local Write-Read Paths > Reporter: Tyler Hobbs > Assignee: T Jake Luciani > Priority: Critical > Fix For: 3.0.0 > > > While running mvbench against a single local node, I noticed this stacktrace showing up multiple times in the logs: > {noformat} > ERROR 16:40:01 Exception in thread Thread[MemtableFlushWriter:1,5,main] > java.lang.AssertionError: null > at org.apache.cassandra.db.rows.Rows.collectStats(Rows.java:70) ~[main/:na] > at org.apache.cassandra.io.sstable.format.big.BigTableWriter$StatsCollector.applyToRow(BigTableWriter.java:197) ~[main/:na] > at org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:116) ~[main/:na] > at org.apache.cassandra.db.transform.UnfilteredRows.isEmpty(UnfilteredRows.java:38) ~[main/:na] > at org.apache.cassandra.db.ColumnIndex.writeAndBuildIndex(ColumnIndex.java:49) ~[main/:na] > at org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:149) ~[main/:na] > at org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:45) ~[main/:na] > at org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:52) ~[main/:na] > at org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:389) ~[main/:na] > at org.apache.cassandra.db.Memtable$FlushRunnable.runMayThrow(Memtable.java:352) ~[main/:na] > at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[main/:na] > at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:299) ~[guava-18.0.jar:na] > at org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1037) ~[main/:na] > at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_45] > at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_45] > at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_45] > {noformat} > To reproduce, run mvbench with the regular schema and the following arguments: > {noformat} > mvn exec:java -Dexec.args="--num-users 100000 --num-songs 1000000 --num-artists 10000 -n 500000 --endpoint 127.0.0.1" > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)