Tyler Hobbs created CASSANDRA-5225:
--------------------------------------
Summary: Missing columns, errors when requesting specific columns
from wide rows
Key: CASSANDRA-5225
URL: https://issues.apache.org/jira/browse/CASSANDRA-5225
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.2.1
Reporter: Tyler Hobbs
Priority: Critical
Attachments: pycassa-repro.py
With Cassandra 1.2.1 (and probably 1.2.0), I'm seeing some problems with Thrift
queries that request a set of specific column names when the row is very wide.
To reproduce, I'm inserting 10 million columns into a single row and then
randomly requesting three columns by name in a loop. It's common for only one
or two of the three columns to be returned. I'm also seeing stack traces like
the following in the Cassandra log:
{noformat}
ERROR 13:12:01,017 Exception in thread Thread[ReadStage:76,5,main]
java.lang.RuntimeException:
org.apache.cassandra.io.sstable.CorruptSSTableException:
org.apache.cassandra.db.ColumnSerializer$CorruptColumnException: invalid column
name length 0
(/var/lib/cassandra/data/Keyspace1/CF1/Keyspace1-CF1-ib-5-Data.db, 14035168
bytes remaining)
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1576)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.apache.cassandra.io.sstable.CorruptSSTableException:
org.apache.cassandra.db.ColumnSerializer$CorruptColumnException: invalid column
name length 0
(/var/lib/cassandra/data/Keyspace1/CF1/Keyspace1-CF1-ib-5-Data.db, 14035168
bytes remaining)
at
org.apache.cassandra.db.columniterator.SSTableNamesIterator.<init>(SSTableNamesIterator.java:69)
at
org.apache.cassandra.db.filter.NamesQueryFilter.getSSTableColumnIterator(NamesQueryFilter.java:81)
at
org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:68)
at
org.apache.cassandra.db.CollationController.collectTimeOrderedData(CollationController.java:133)
at
org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:65)
at
org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1358)
at
org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1215)
at
org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1127)
at org.apache.cassandra.db.Table.getRow(Table.java:355)
at
org.apache.cassandra.db.SliceByNamesReadCommand.getRow(SliceByNamesReadCommand.java:64)
at
org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1052)
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1572)
... 3 more
{noformat}
This doesn't seem to happen when the row is smaller, so it might have something
to do with incremental large row compaction.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
