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https://issues.apache.org/jira/browse/CASSANDRA-6892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jonathan Ellis reassigned CASSANDRA-6892:
-----------------------------------------
Assignee: Tyler Hobbs
> Cassandra 2.0.x validates Thrift columns incorrectly and causes
> InvalidRequestException
> ---------------------------------------------------------------------------------------
>
> Key: CASSANDRA-6892
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6892
> Project: Cassandra
> Issue Type: Bug
> Components: API
> Reporter: Christian Spriegel
> Assignee: Tyler Hobbs
> Fix For: 2.0.7
>
> Attachments: CASSANDRA-6892_V1.patch
>
>
> I just upgrade my local dev machine to Cassandra 2.0, which causes one of my
> automated tests to fail now. With the latest 1.2.x it was working fine.
> The Exception I get on my client (using Hector) is:
> {code}
> me.prettyprint.hector.api.exceptions.HInvalidRequestException:
> InvalidRequestException(why:(Expected 8 or 0 byte long (21))
> [MDS_0][MasterdataIndex][key2] failed validation)
> at
> me.prettyprint.cassandra.service.ExceptionsTranslatorImpl.translate(ExceptionsTranslatorImpl.java:52)
> at
> me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:265)
> at
> me.prettyprint.cassandra.model.ExecutingKeyspace.doExecuteOperation(ExecutingKeyspace.java:113)
> at
> me.prettyprint.cassandra.model.MutatorImpl.execute(MutatorImpl.java:243)
> at
> me.prettyprint.cassandra.service.template.AbstractColumnFamilyTemplate.executeBatch(AbstractColumnFamilyTemplate.java:115)
> at
> me.prettyprint.cassandra.service.template.AbstractColumnFamilyTemplate.executeIfNotBatched(AbstractColumnFamilyTemplate.java:163)
> at
> me.prettyprint.cassandra.service.template.ColumnFamilyTemplate.update(ColumnFamilyTemplate.java:69)
> at
> com.mycompany.spring3utils.dataaccess.cassandra.AbstractCassandraDAO.doUpdate(AbstractCassandraDAO.java:482)
> ....
> Caused by: InvalidRequestException(why:(Expected 8 or 0 byte long (21))
> [MDS_0][MasterdataIndex][key2] failed validation)
> at
> org.apache.cassandra.thrift.Cassandra$batch_mutate_result.read(Cassandra.java:20833)
> at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
> at
> org.apache.cassandra.thrift.Cassandra$Client.recv_batch_mutate(Cassandra.java:964)
> at
> org.apache.cassandra.thrift.Cassandra$Client.batch_mutate(Cassandra.java:950)
> at
> me.prettyprint.cassandra.model.MutatorImpl$3.execute(MutatorImpl.java:246)
> at
> me.prettyprint.cassandra.model.MutatorImpl$3.execute(MutatorImpl.java:1)
> at
> me.prettyprint.cassandra.service.Operation.executeAndSetResult(Operation.java:104)
> at
> me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:258)
> ... 46 more
> {code}
> The schema of my column family is:
> {code}
> create column family MasterdataIndex with
> compression_options = {sstable_compression:SnappyCompressor,
> chunk_length_kb:64} and
> comparator = UTF8Type and
> key_validation_class = 'CompositeType(UTF8Type,LongType)' and
> default_validation_class = BytesType;
> {code}
> From the error message it looks like Cassandra is trying to validate the
> value with the key-validator! (My value in this case it 21 bytes long)
> I studied the Cassandra 2.0 code and found something wrong. It seems in
> CFMetaData.addDefaultKeyAliases it passes the KeyValidator into
> ColumnDefinition.partitionKeyDef. Inside ColumnDefinition the validator is
> expected to be the value validator!
> In CFMetaData:
> {code}
> private List<ColumnDefinition>
> addDefaultKeyAliases(List<ColumnDefinition> pkCols)
> {
> for (int i = 0; i < pkCols.size(); i++)
> {
> if (pkCols.get(i) == null)
> {
> Integer idx = null;
> AbstractType<?> type = keyValidator;
> if (keyValidator instanceof CompositeType)
> {
> idx = i;
> type = ((CompositeType)keyValidator).types.get(i);
> }
> // For compatibility sake, we call the first alias 'key'
> rather than 'key1'. This
> // is inconsistent with column alias, but it's probably not
> worth risking breaking compatibility now.
> ByteBuffer name = ByteBufferUtil.bytes(i == 0 ?
> DEFAULT_KEY_ALIAS : DEFAULT_KEY_ALIAS + (i + 1));
> ColumnDefinition newDef =
> ColumnDefinition.partitionKeyDef(name, type, idx); // type is LongType in my
> case, as it uses keyValidator !!!
> column_metadata.put(newDef.name, newDef);
> pkCols.set(i, newDef);
> }
> }
> return pkCols;
> }
> ...
> public AbstractType<?> getValidator() // in ThriftValidation this is
> expected to be the value validator!
> {
> return validator;
> }
> {code}
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