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From "Pavel Yaskevich (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-2256) BRAF assertion error
Date Wed, 02 Mar 2011 17:52:36 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13001502#comment-13001502
] 

Pavel Yaskevich commented on CASSANDRA-2256:
--------------------------------------------

Test for the problem:
{code}
public void testAssertOnRead() throws IOException
    {
        BufferedRandomAccessFile file = createTempFile("braf");
        file.write(new byte[10]);
        file.sync();

        BufferedRandomAccessFile copy = new BufferedRandomAccessFile(file.getPath(), "r");

        copy.seek(15);
        copy.read();

        file.close();
        copy.close();
    }
{code}

This happens when you are trying to seek to position > file length on read-only file and
then read (because fileLength is cached, method isEOF() does not work properly). I don't think
that we should allow such seeks.

> BRAF assertion error
> --------------------
>
>                 Key: CASSANDRA-2256
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2256
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7.3
>            Reporter: Jonathan Ellis
>            Assignee: Pavel Yaskevich
>             Fix For: 0.7.4
>
>
> While investigating CASSANDRA-2240 I ran into this:
> {noformat}
> java.lang.AssertionError
>         at org.apache.cassandra.io.util.BufferedRandomAccessFile.read(BufferedRandomAccessFile.java\
> :230)
>         at java.io.RandomAccessFile.readByte(RandomAccessFile.java:589)
>         at org.apache.cassandra.utils.ByteBufferUtil.readShortLength(ByteBufferUtil.java:273)
>         at org.apache.cassandra.utils.ByteBufferUtil.readWithShortLength(ByteBufferUtil.java:284)
>         at org.apache.cassandra.db.CompactionManager.doScrub(CompactionManager.java:539)
> {noformat}

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