[CASSANDRA-6374] AssertionError for rows with zero columns

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.0.3
• Severity: Normal
• Assignee: Jonathan Ellis
• Reporter: Anton Gorbunov

Authors

Jonathan Ellis

Reviewers

Jason Brown

• Created: 19/Nov/13 06:13
• Updated: 16/Apr/19 09:31
• Resolved: 21/Nov/13 21:15

Description

After upgrading from 1.2.5 to 1.2.9 and then to 2.0.2 we've got those exceptions:

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)

Also found similar issue in this thread:
http://www.mail-archive.com/[e-mail]/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).