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Date: Fri, 24 Mar 2017 15:44:41 +0000 (UTC)
From: "Alex Petrov (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.13056599.1489657383000.113575.1490370281803@Atlassian.JIRA>
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Subject: [jira] [Commented] (CASSANDRA-13337) Dropping column results in
 "corrupt" SSTable
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archived-at: Fri, 24 Mar 2017 15:44:49 -0000


    [ https://issues.apache.org/jira/browse/CASSANDRA-13337?page=3Dcom.atla=
ssian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=
=3D15940589#comment-15940589 ]=20

Alex Petrov commented on CASSANDRA-13337:
-----------------------------------------

Sorry for the delay, I have somehow missed the notification.=20
The new patch looks great, thanks for taking care of it!

+1=20

> Dropping column results in "corrupt" SSTable
> --------------------------------------------
>
>                 Key: CASSANDRA-13337
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1333=
7
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: Jonas Borgstr=C3=B6m
>            Assignee: Sylvain Lebresne
>             Fix For: 3.0.x, 3.11.x
>
>
> It seems like dropping a column can make SSTables containing rows with wr=
ites to only the dropped column will become uncompactable.
> Also Cassandra <=3D 3.9 and <=3D 3.0.11 will even refuse to start with th=
e same stack trace
> {code}
> cqlsh -e "create keyspace test with replication =3D { 'class' : 'SimpleSt=
rategy', 'replication_factor' : 1 }"
> cqlsh -e "create table test.test(pk text primary key, x text, y text)"
> cqlsh -e "update test.test set x=3D'1' where pk=3D'1'"
> nodetool flush
> cqlsh -e "update test.test set x=3D'1', y=3D'1' where pk=3D'1'"
> nodetool flush
> cqlsh -e "alter table test.test drop x"
> nodetool compact test test
> error: Corrupt empty row found in unfiltered partition
> -- StackTrace --
> java.io.IOException: Corrupt empty row found in unfiltered partition
> =09at org.apache.cassandra.db.rows.UnfilteredSerializer.deserialize(Unfil=
teredSerializer.java:382)
> =09at org.apache.cassandra.io.sstable.SSTableSimpleIterator$CurrentFormat=
Iterator.computeNext(SSTableSimpleIterator.java:87)
> =09at org.apache.cassandra.io.sstable.SSTableSimpleIterator$CurrentFormat=
Iterator.computeNext(SSTableSimpleIterator.java:65)
> =09at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterato=
r.java:47)
> =09at org.apache.cassandra.io.sstable.SSTableIdentityIterator.doCompute(S=
STableIdentityIterator.java:123)
> =09at org.apache.cassandra.io.sstable.SSTableIdentityIterator.computeNext=
(SSTableIdentityIterator.java:100)
> =09at org.apache.cassandra.io.sstable.SSTableIdentityIterator.computeNext=
(SSTableIdentityIterator.java:30)
> =09at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterato=
r.java:47)
> =09at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator=
.computeNext(LazilyInitializedUnfilteredRowIterator.java:95)
> =09at org.apache.cassandra.db.rows.LazilyInitializedUnfilteredRowIterator=
.computeNext(LazilyInitializedUnfilteredRowIterator.java:32)
> =09at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterato=
r.java:47)
> =09at org.apache.cassandra.utils.MergeIterator$Candidate.advance(MergeIte=
rator.java:369)
> =09at org.apache.cassandra.utils.MergeIterator$ManyToOne.advance(MergeIte=
rator.java:189)
> =09at org.apache.cassandra.utils.MergeIterator$ManyToOne.computeNext(Merg=
eIterator.java:158)
> =09at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterato=
r.java:47)
> =09at org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMe=
rgeIterator.computeNext(UnfilteredRowIterators.java:509)
> =09at org.apache.cassandra.db.rows.UnfilteredRowIterators$UnfilteredRowMe=
rgeIterator.computeNext(UnfilteredRowIterators.java:369)
> =09at org.apache.cassandra.utils.AbstractIterator.hasNext(AbstractIterato=
r.java:47)
> =09at org.apache.cassandra.db.transform.BaseRows.hasNext(BaseRows.java:12=
9)
> =09at org.apache.cassandra.db.transform.UnfilteredRows.isEmpty(Unfiltered=
Rows.java:58)
> =09at org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(P=
urgeFunction.java:67)
> =09at org.apache.cassandra.db.partitions.PurgeFunction.applyToPartition(P=
urgeFunction.java:26)
> =09at org.apache.cassandra.db.transform.BasePartitions.hasNext(BasePartit=
ions.java:96)
> =09at org.apache.cassandra.db.compaction.CompactionIterator.hasNext(Compa=
ctionIterator.java:227)
> =09at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(Compa=
ctionTask.java:190)
> =09at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java=
:28)
> =09at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(C=
ompactionTask.java:89)
> =09at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(A=
bstractCompactionTask.java:61)
> =09at org.apache.cassandra.db.compaction.CompactionManager$8.runMayThrow(=
CompactionManager.java:610)
> =09at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java=
:28)
> =09at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:=
511)
> =09at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> =09at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:=
511)
> =09at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> =09at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecuto=
r.java:1142)
> =09at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecut=
or.java:617)
> =09at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLoc=
alDeallocator$0(NamedThreadFactory.java:79)
> =09at java.lang.Thread.run(Thread.java:745)
> {code}


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