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https://issues.apache.org/jira/browse/CASSANDRA-18966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17780046#comment-17780046
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Brandon Williams commented on CASSANDRA-18966:
----------------------------------------------
This is a problem with the driver which CASSANDRA-18960 may solve when it does
an upgrade.
> Error thrown when creating transaction with counter column type
> ---------------------------------------------------------------
>
> Key: CASSANDRA-18966
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18966
> Project: Cassandra
> Issue Type: Bug
> Components: CQL/Interpreter
> Reporter: Luis E Fernandez
> Priority: Normal
>
> *System configuration and information:*
> Single node Cassandra with Accord transactions enabled running on docker
> Built from commit:
> [a7cd114435704b988c81f47ef53d0bfd6441f38b|https://github.com/apache/cassandra/commit/a7cd114435704b988c81f47ef53d0bfd6441f38b]
> CQLSH: [cqlsh 6.2.0 | Cassandra 5.0-alpha2-SNAPSHOT | CQL spec 3.4.7 | Native
> protocol v5]
>
> *Steps to reproduce in CQLSH:*
> {code:java}
> CREATE KEYSPACE accord WITH replication = {'class': 'SimpleStrategy',
> 'replication_factor': '1'} AND durable_writes = true;{code}
> {code:java}
> CREATE TABLE accord.accounts (
> partition_key text,
> account_id int,
> balance counter,
> PRIMARY KEY (partition_key, account_id)
> ) WITH CLUSTERING ORDER BY (account_id ASC)
> {code}
> {code:java}
> BEGIN TRANSACTION UPDATE accord.accounts SET balance = balance + 1000 WHERE
> partition_key = 'default' AND account_id = 1; COMMIT TRANSACTION;{code}
> at this point the row is correctly inserted
> bug happens after executing the following statement:
> I was not able to update the `balance` counter column. I expected to be able
> to update the `balance` column to 2000.
> {code:java}
> BEGIN TRANSACTION LET row = (SELECT * FROM accord.accounts WHERE
> partition_key = 'default' AND account_id = 1); SELECT row.balance; UPDATE
> accord.accounts SET balance = balance + 1000 WHERE partition_key = 'default'
> AND account_id = 1; COMMIT TRANSACTION;{code}
>
> Bug / Error:
> ======================================================================
> {color:#de350b}Traceback (most recent call last):{color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 755, in recv_results_rows{color}
> {color:#de350b} self.parsed_rows = [{color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 756, in <listcomp>{color}
> {color:#de350b} tuple(ctype.from_binary(val, protocol_version){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 756, in <genexpr>{color}
> {color:#de350b} tuple(ctype.from_binary(val, protocol_version){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py",
> line 312, in from_binary{color}
> {color:#de350b} return cls.deserialize(byts, protocol_version){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py",
> line 550, in deserialize{color}
> {color:#de350b} return int64_unpack(byts){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/marshal.py",
> line 22, in <lambda>{color}
> {color:#de350b} unpack = lambda s: packer.unpack(s)[0]{color}
> {color:#de350b}struct.error: unpack requires a buffer of 8 bytes{color}
> {color:#de350b}During handling of the above exception, another exception
> occurred:{color}
> {color:#de350b}Traceback (most recent call last):{color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 763, in recv_results_rows{color}
> {color:#de350b} self.column_types[i].from_binary(row[i],
> protocol_version){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py",
> line 312, in from_binary{color}
> {color:#de350b} return cls.deserialize(byts, protocol_version){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cqltypes.py",
> line 550, in deserialize{color}
> {color:#de350b} return int64_unpack(byts){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/marshal.py",
> line 22, in <lambda>{color}
> {color:#de350b} unpack = lambda s: packer.unpack(s)[0]{color}
> {color:#de350b}struct.error: unpack requires a buffer of 8 bytes{color}
> {color:#de350b}During handling of the above exception, another exception
> occurred:{color}
> {color:#de350b}Traceback (most recent call last):{color}
> {color:#de350b} File "/opt/cassandra/bin/../pylib/cqlshlib/cqlshmain.py",
> line 987, in perform_simple_statement{color}
> {color:#de350b} result = future.result(){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/cluster.py",
> line 4894, in result{color}
> {color:#de350b} raise self._final_exception{color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/connection.py",
> line 1199, in process_msg{color}
> {color:#de350b} response = decoder(header.version, self.user_type_map,
> stream_id,{color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 1196, in decode_message{color}
> {color:#de350b} msg = msg_class.recv_body(body, protocol_version,
> user_type_map, result_metadata){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 744, in recv_body{color}
> {color:#de350b} msg.recv(f, protocol_version, user_type_map,
> result_metadata){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 730, in recv{color}
> {color:#de350b} self.recv_results_rows(f, protocol_version, user_type_map,
> result_metadata){color}
> {color:#de350b} File
> "/opt/cassandra/bin/../lib/cassandra-driver-internal-only-3.25.0.zip/cassandra-driver-3.25.0/cassandra/protocol.py",
> line 765, in recv_results_rows{color}
> {color:#de350b} raise DriverException('Failed decoding result column "%s"
> of type %s: %s' % (self.column_names[i],{color}
> {color:#de350b}cassandra.DriverException: Failed decoding result column
> "row.balance" of type counter: unpack requires a buffer of 8 bytes{color}
>
> {color:#172b4d}This is found while testing Accord transactions with
> [~henrik.ingo] and team.{color}
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