[
https://issues.apache.org/jira/browse/CASSANDRA-16178?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Caleb Rackliffe updated CASSANDRA-16178:
----------------------------------------
Test and Documentation Plan: a new unit test that isolates and verifies the
fix
Status: Patch Available (was: In Progress)
Looks like this was just a minor mistake w/ passing an accessor to a method
that only needed the raw values. It obviously only affects trunk.
[branch|https://github.com/apache/cassandra/pull/766]
[j8
tests|https://app.circleci.com/pipelines/github/maedhroz/cassandra/122/workflows/1cd714e6-859d-46a0-95bd-68930fc7f78f]
[j11
tests|https://app.circleci.com/pipelines/github/maedhroz/cassandra/122/workflows/8664a5a1-f0f4-46d0-9713-b0188220ddcf]
> ByteBufferAccessor throws ClassCastException when trying to query
> system_views.local_read_latency
> -------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-16178
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16178
> Project: Cassandra
> Issue Type: Bug
> Components: Feature/Virtual Tables
> Reporter: Caleb Rackliffe
> Assignee: Caleb Rackliffe
> Priority: Normal
> Fix For: 4.0-beta
>
>
> If you start up a fresh trunk/4.0 node and execute the query “SELECT * FROM
> system_views.local_read_latency”, you’ll get the following error:
> ERROR [Native-Transport-Requests-1] 2020-09-30 09:44:45,099
> ErrorMessage.java:457 - Unexpected exception during request
> java.lang.ClassCastException:
> org.apache.cassandra.db.marshal.ByteBufferAccessor cannot be cast to
> java.lang.String
> at
> org.apache.cassandra.serializers.AbstractTextSerializer.serialize(AbstractTextSerializer.java:29)
> at
> org.apache.cassandra.db.marshal.AbstractType.decompose(AbstractType.java:131)
> at
> org.apache.cassandra.db.marshal.CompositeType.decompose(CompositeType.java:192)
> at
> org.apache.cassandra.db.virtual.SimpleDataSet.makeDecoratedKey(SimpleDataSet.java:87)
> at
> org.apache.cassandra.db.virtual.SimpleDataSet.row(SimpleDataSet.java:63)
> at
> org.apache.cassandra.db.virtual.TableMetricTables$TableMetricTable.data(TableMetricTables.java:196)
> at
> org.apache.cassandra.db.virtual.AbstractVirtualTable.select(AbstractVirtualTable.java:91)
> at
> org.apache.cassandra.db.VirtualTablePartitionRangeReadQuery.queryVirtualTable(VirtualTablePartitionRangeReadQuery.java:93)
> at
> org.apache.cassandra.db.VirtualTableReadQuery.executeLocally(VirtualTableReadQuery.java:61)
> at
> org.apache.cassandra.db.AbstractReadQuery.executeInternal(AbstractReadQuery.java:64)
> at
> org.apache.cassandra.db.VirtualTableReadQuery.executeInternal(VirtualTableReadQuery.java:32)
> at
> org.apache.cassandra.db.VirtualTableReadQuery.execute(VirtualTableReadQuery.java:54)
> at
> org.apache.cassandra.service.pager.AbstractQueryPager.fetchPage(AbstractQueryPager.java:75)
> at
> org.apache.cassandra.service.pager.PartitionRangeQueryPager.fetchPage(PartitionRangeQueryPager.java:29)
> at
> org.apache.cassandra.cql3.statements.SelectStatement$Pager$NormalPager.fetchPage(SelectStatement.java:352)
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:400)
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:250)
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:88)
> at
> org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:216)
> at
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:253)
> at
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:240)
> at
> org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:108)
> at
> org.apache.cassandra.transport.Message$Request.execute(Message.java:253)
> at
> org.apache.cassandra.transport.Message$Dispatcher.processRequest(Message.java:725)
> at
> org.apache.cassandra.transport.Message$Dispatcher.lambda$channelRead0$0(Message.java:630)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162)
> at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:119)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Thread.java:748)
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