[
https://issues.apache.org/jira/browse/CASSANDRA-9037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14394198#comment-14394198
]
Sylvain Lebresne commented on CASSANDRA-9037:
---------------------------------------------
Fyi, as I suggested in CASSANDRA-7557, I suggest we just entirely get rid of
function execution at prepare time. The short version is that it's imo starting
to add way more complexity than it's worth as an optimization.
> Terminal UDFs evaluated at prepare time throw protocol version error
> --------------------------------------------------------------------
>
> Key: CASSANDRA-9037
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9037
> Project: Cassandra
> Issue Type: Bug
> Reporter: Sam Tunnicliffe
> Assignee: Sam Tunnicliffe
> Fix For: 3.0
>
>
> When a pure function with only terminal arguments (or with no arguments) is
> used in a where clause, it's executed at prepare time and
> {{Server.CURRENT_VERSION}} passed as the protocol version for serialization
> purposes. For native functions, this isn't a problem, but UDFs use classes in
> the bundled java-driver-core jar for (de)serialization of args and return
> values. When {{Server.CURRENT_VERSION}} is greater than the highest version
> supported by the bundled java driver the execution fails with the following
> exception:
> {noformat}
> ERROR [SharedPool-Worker-1] 2015-03-24 18:10:59,391 QueryMessage.java:132 -
> Unexpected error during query
> org.apache.cassandra.exceptions.FunctionExecutionException: execution of
> 'ks.overloaded[text]' failed: java.lang.IllegalArgumentException: No protocol
> version matching integer version 4
> at
> org.apache.cassandra.exceptions.FunctionExecutionException.create(FunctionExecutionException.java:35)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.udf.gen.Cksoverloaded_1.execute(Cksoverloaded_1.java)
> ~[na:na]
> at
> org.apache.cassandra.cql3.functions.FunctionCall.executeInternal(FunctionCall.java:78)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.functions.FunctionCall.access$200(FunctionCall.java:34)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.functions.FunctionCall$Raw.execute(FunctionCall.java:176)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.functions.FunctionCall$Raw.prepare(FunctionCall.java:161)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.SingleColumnRelation.toTerm(SingleColumnRelation.java:108)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.SingleColumnRelation.newEQRestriction(SingleColumnRelation.java:143)
> ~[main/:na]
> at org.apache.cassandra.cql3.Relation.toRestriction(Relation.java:127)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.restrictions.StatementRestrictions.<init>(StatementRestrictions.java:126)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.statements.SelectStatement$RawStatement.prepareRestrictions(SelectStatement.java:787)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.statements.SelectStatement$RawStatement.prepare(SelectStatement.java:740)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.QueryProcessor.getStatement(QueryProcessor.java:488)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:252)
> ~[main/:na]
> at
> org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:246)
> ~[main/:na]
> at
> org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:119)
> ~[main/:na]
> at
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:475)
> [main/:na]
> at
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:371)
> [main/:na]
> at
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> [netty-all-4.0.23.Final.jar:4.0.23.Final]
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:333)
> [netty-all-4.0.23.Final.jar:4.0.23.Final]
> at
> io.netty.channel.AbstractChannelHandlerContext.access$700(AbstractChannelHandlerContext.java:32)
> [netty-all-4.0.23.Final.jar:4.0.23.Final]
> at
> io.netty.channel.AbstractChannelHandlerContext$8.run(AbstractChannelHandlerContext.java:324)
> [netty-all-4.0.23.Final.jar:4.0.23.Final]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> [na:1.7.0_71]
> at
> org.apache.cassandra.concurrent.AbstractTracingAwareExecutorService$FutureTask.run(AbstractTracingAwareExecutorService.java:164)
> [main/:na]
> at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105)
> [main/:na]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_71]
> Caused by: java.lang.IllegalArgumentException: No protocol version matching
> integer version 4
> at
> com.datastax.driver.core.ProtocolVersion.fromInt(ProtocolVersion.java:89)
> ~[cassandra-driver-core-2.1.2.jar:na]
> at
> org.apache.cassandra.cql3.functions.UDFunction.compose(UDFunction.java:177)
> ~[main/:na]
> ... 25 common frames omitted
> {noformat}
> This is currently the case on trunk following the bump of
> {{Server.CURRENT_VERSION}} to 4 by CASSANDRA-7660.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
