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From "Anton Gorbunov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-6374) AssertionError for rows with zero columns
Date Tue, 19 Nov 2013 06:15:22 GMT
Anton Gorbunov created CASSANDRA-6374:
-----------------------------------------

             Summary: AssertionError for rows with zero columns
                 Key: CASSANDRA-6374
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6374
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: Anton Gorbunov


After upgrading from 1.2.5 to 1.2.9 and then to 2.0.2 we've got those exceptions:
{code}
ERROR [FlushWriter:1] 2013-11-18 16:14:36,305 CassandraDaemon.java (line 187) Exception in
thread Thread[FlushWriter:1,5,main]
java.lang.AssertionError
        at org.apache.cassandra.io.sstable.SSTableWriter.rawAppend(SSTableWriter.java:198)
        at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:186)
        at org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:360)
        at org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:315)
        at org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
        at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
{code}

Also found similar issue in this thread:
http://www.mail-archive.com/user@cassandra.apache.org/msg32875.html
There Aaron Morton said that its caused by leaving rows with zero columns - that's exactly
what we do in some CFs (using Thrift & Astyanax).




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