A column value is not updated via Thrift 0.2.0 API (C#)
--------------------------------------------------------
Key: CASSANDRA-1048
URL: https://issues.apache.org/jira/browse/CASSANDRA-1048
Project: Cassandra
Issue Type: Bug
Components: Tools
Affects Versions: 0.6.1
Environment: Windows Server 2003 R2 32-bit, JRE 6, Cassandra 0.6.1,
Thrift 0.2.0, MS VS 2008/.NET 3.5
Reporter: Alexander S
Hello all,
Please forgive me, if the issue I am describing is not a bug, but rather my
lack of knowledge. I have just started playing with Cassandra and at this
moment I am stuck.
I am a .NET developer and have very little experience with Java. This is why I
decided to use Thrift generated C# classes in order to communicate with
Cassandra. It appears I can insert columns, but I cannot updated them using C#
interface. At the same time I can do it successfully using cassandra-cli. Let
me provide some details:
// Inserting column:
long tStamp = DateTime.Now.Millisecond;
//Insert the data into the column 'name'
client.insert("Keyspace1",
"Test",
nameColumnPath,
utf8Encoding.GetBytes("Value"),
tStamp,
ConsistencyLevel.ONE);
ColumnOrSuperColumn returnedCol = new ColumnOrSuperColumn();
returnedCol = client.get("Keyspace1", "Test", nameColumnPath,
ConsistencyLevel.ONE);
Console.WriteLine("Column Data in Keyspace1/Standard1: name: {0},
value: {1}",
utf8Encoding.GetString(returnedCol.Column.Name),
utf8Encoding.GetString(returnedCol.Column.Value));
// Column Data in Keyspace1/Standard1: name: name, value: Value
// update same column:
Console.WriteLine("Update column value");
//Insert the data into the column 'name'
client.insert("Keyspace1",
"Test",
nameColumnPath,
utf8Encoding.GetBytes("Value updated"),
tStamp,
ConsistencyLevel.ONE);
returnedCol = client.get("Keyspace1", "Test", nameColumnPath,
ConsistencyLevel.ONE);
Console.WriteLine("Column Data in Keyspace1/Standard1: name: {0},
value: {1}",
utf8Encoding.GetString(returnedCol.Column.Name),
utf8Encoding.GetString(returnedCol.Column.Value));
//Column Data in Keyspace1/Standard1: name: name, value: Value (it has NOT been
changed!!!)
Now I try achieve same results with cassandra-cli:
cassandra> set Keyspace1.Standard1['Test']['name']='Value'
Value inserted.
cassandra> get Keyspace1.Standard1['Test']
=> (column=6e616d65, value=Value, timestamp=1272932956231000)
Returned 1 results.
cassandra> set Keyspace1.Standard1['Test']['name']='Value updated'
Value inserted.
cassandra> get Keyspace1.Standard1['Test']
=> (column=6e616d65, value=Value updated, timestamp=1272932970637000)
Returned 1 results.
cassandra>
As you can see it works.
It doesn't matter if timestamps values are different for C# example. I tried it
too.
Thank you very much.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
