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Date: Tue, 15 Feb 2011 11:27:08 -0500
Message-ID: <AANLkTimX5xV7rEJeN=9FQALue7NNdvvKVQc9Xf=74Mqf@mail.gmail.com>
Subject: Re: Possible EOFException regression in 0.7.1
From: Jake Luciani <jakers@gmail.com>
To: user@cassandra.apache.org
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Have you made any changes to the cassandra config?

2011/2/15 Jonas Borgstr=F6m <jonas.borgstrom@trioptima.com>

> Hi all,
>
> While testing the new 0.7.1 release I got the following exception:
>
> ERROR [ReadStage:11] 2011-02-15 16:39:18,105
> DebuggableThreadPoolExecutor.java (line 103) Error in ThreadPoolExecutor
> java.io.IOError: java.io.EOFException
>        at
>
> org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTabl=
eNamesIterator.java:75)
>        at
>
> org.apache.cassandra.db.filter.NamesQueryFilter.getSSTableColumnIterator(=
NamesQueryFilter.java:59)
>        at
>
> org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(Query=
Filter.java:80)
>        at
>
> org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamily=
Store.java:1274)
>        at
>
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilySto=
re.java:1166)
>        at
>
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilySto=
re.java:1095)
>        at org.apache.cassandra.db.Table.getRow(Table.java:384)
>        at
>
> org.apache.cassandra.db.SliceByNamesReadCommand.getRow(SliceByNamesReadCo=
mmand.java:60)
>        at
>
> org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(S=
torageProxy.java:473)
>        at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
>        at
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java=
:1110)
>        at
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.jav=
a:603)
>        at java.lang.Thread.run(Thread.java:636)
> Caused by: java.io.EOFException
>        at java.io.DataInputStream.readInt(DataInputStream.java:392)
>        at
>
> org.apache.cassandra.utils.BloomFilterSerializer.deserialize(BloomFilterS=
erializer.java:48)
>        at
>
> org.apache.cassandra.utils.BloomFilterSerializer.deserialize(BloomFilterS=
erializer.java:30)
>        at
>
> org.apache.cassandra.io.sstable.IndexHelper.defreezeBloomFilter(IndexHelp=
er.java:108)
>        at
>
> org.apache.cassandra.db.columniterator.SSTableNamesIterator.read(SSTableN=
amesIterator.java:106)
>        at
>
> org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTabl=
eNamesIterator.java:71)
>        ... 12 more
>
> I'm able reliably reproduce this using the following one node cluster:
> - apache-cassandra-0.7.1-bin.tar.gz
> - Fedora 14
> - java version "1.6.0_20".
>  OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode)
> - Default cassandra.yaml
> - cassandra-env.sh: MAX_HEAP_SIZE=3D"1G"; HEAP_NEWSIZE=3D"200M"
>
> cassandra-cli initialization:
> - create keyspace foo;
> - use foo;
> - create column family datasets;
>
> $ python dataset_check.py (attached)
> Inserting row 0 of 10
> Inserting row 1 of 10
> Inserting row 2 of 10
> Inserting row 3 of 10
> Inserting row 4 of 10
> Inserting row 5 of 10
> Inserting row 6 of 10
> Inserting row 7 of 10
> Inserting row 8 of 10
> Inserting row 9 of 10
> Attempting to fetch key 0
> Traceback (most recent call last):
> ...
> pycassa.pool.MaximumRetryException: Retried 6 times
>
> After this I have 6 EOFExceptions in system.log.
> Running "get datasets[0]['name'];" using cassandra-cli also triggers the
> same exception.
> I've not been able to reproduce this with cassandra 0.7.0.
>
> Regards,
> Jonas
>
>
>

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Have you made any changes to the cassandra config?<br><br><div class=3D"gma=
il_quote">2011/2/15 Jonas Borgstr=F6m <span dir=3D"ltr">&lt;<a href=3D"mail=
to:jonas.borgstrom@trioptima.com">jonas.borgstrom@trioptima.com</a>&gt;</sp=
an><br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;">Hi all,<br>
<br>
While testing the new 0.7.1 release I got the following exception:<br>
<br>
ERROR [ReadStage:11] 2011-02-15 16:39:18,105<br>
DebuggableThreadPoolExecutor.java (line 103) Error in ThreadPoolExecutor<br=
>
java.io.IOError: java.io.EOFException<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.columniterator.SSTableNamesIterator.&lt;init&gt;(SS=
TableNamesIterator.java:75)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.filter.NamesQueryFilter.getSSTableColumnIterator(Na=
mesQueryFilter.java:59)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFi=
lter.java:80)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilySt=
ore.java:1274)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore=
.java:1166)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore=
.java:1095)<br>
 =A0 =A0 =A0 =A0at org.apache.cassandra.db.Table.getRow(Table.java:384)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.SliceByNamesReadCommand.getRow(SliceByNamesReadComm=
and.java:60)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(Sto=
rageProxy.java:473)<br>
 =A0 =A0 =A0 =A0at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRu=
nnable.java:30)<br>
 =A0 =A0 =A0 =A0at<br>
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1=
110)<br>
 =A0 =A0 =A0 =A0at<br>
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:=
603)<br>
 =A0 =A0 =A0 =A0at java.lang.Thread.run(Thread.java:636)<br>
Caused by: java.io.EOFException<br>
 =A0 =A0 =A0 =A0at java.io.DataInputStream.readInt(DataInputStream.java:392=
)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.utils.BloomFilterSerializer.deserialize(BloomFilterSer=
ializer.java:48)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.utils.BloomFilterSerializer.deserialize(BloomFilterSer=
ializer.java:30)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.io.sstable.IndexHelper.defreezeBloomFilter(IndexHelper=
.java:108)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.columniterator.SSTableNamesIterator.read(SSTableNam=
esIterator.java:106)<br>
 =A0 =A0 =A0 =A0at<br>
org.apache.cassandra.db.columniterator.SSTableNamesIterator.&lt;init&gt;(SS=
TableNamesIterator.java:71)<br>
 =A0 =A0 =A0 =A0... 12 more<br>
<br>
I&#39;m able reliably reproduce this using the following one node cluster:<=
br>
- apache-cassandra-0.7.1-bin.tar.gz<br>
- Fedora 14<br>
- java version &quot;1.6.0_20&quot;.<br>
 =A0OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode)<br>
- Default cassandra.yaml<br>
- cassandra-env.sh: MAX_HEAP_SIZE=3D&quot;1G&quot;; HEAP_NEWSIZE=3D&quot;20=
0M&quot;<br>
<br>
cassandra-cli initialization:<br>
- create keyspace foo;<br>
- use foo;<br>
- create column family datasets;<br>
<br>
$ python dataset_check.py (attached)<br>
Inserting row 0 of 10<br>
Inserting row 1 of 10<br>
Inserting row 2 of 10<br>
Inserting row 3 of 10<br>
Inserting row 4 of 10<br>
Inserting row 5 of 10<br>
Inserting row 6 of 10<br>
Inserting row 7 of 10<br>
Inserting row 8 of 10<br>
Inserting row 9 of 10<br>
Attempting to fetch key 0<br>
Traceback (most recent call last):<br>
...<br>
pycassa.pool.MaximumRetryException: Retried 6 times<br>
<br>
After this I have 6 EOFExceptions in system.log.<br>
Running &quot;get datasets[0][&#39;name&#39;];&quot; using cassandra-cli al=
so triggers the<br>
same exception.<br>
I&#39;ve not been able to reproduce this with cassandra 0.7.0.<br>
<br>
Regards,<br>
<font color=3D"#888888">Jonas<br>
<br>
<br>
</font></blockquote></div><br>

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