ReversedType Marshalling Exception about helenus

[gian788]

Probably the bug is in the getInnerType function which returns the comparator type in a form like 'org.apache.cassandra.db.marshal.UTF8Type' and not 'UTF8Type'.

[gian788]

I have changed getInnerType (index.js file) function to:
function getInnerType(str){
console.log(str)
var index = str.indexOf('(');
return index > 0 ? getType(str.substring(index + 1, str.length - 1)) : getType(str);
}
and it works.

[ncperng]

Dear Gian,

Thanks for the help. However, it didn't work at my side. I think the problem is not the text parsing issue, since the string at my side passed to getInnerType() is 'ReversedType' not the 'ReversedType(org.apache.cassandra.db.marshal.UTF8Type)' as expected.

So that the Marshal object can only get 'ReversedType' and cannot identify it. My question now is why the res.schema at Line 433 in /lib/connection.js didn't pass the full type string? It should be 'ReversedType(org.apache.cassandra.db.marshal.UTF8Type)' instead of 'ReversedType' only.

[devdazed]

What version of C* are you using? and what version of CQL?

[ncperng]

The version of C is: gcc version 4.2.1 (Based on Apple Inc. build 5658).
Cassandra and CQL versions:
Cassandra 1.1.0 (I also tried Cassandra 1.1.3)
CQL spec 2.0.0
Thrift protocol 19.30.0

By the way, I'm working on MacOSX version 10.7.4, and the Nodejs is 0.8.5 binary download from http://www.nodejs.org.

I guess the problem comes from column family schema parsing. Where can I find this part from Helenus source?

[devdazed]

So it seems the CQL query, as you have stated, is returning ReversedType rather than ReversedType(UTF8Type). This poses a problem as the marshaller doesn't know how to deserialize it. I'll put in a result of IDENTITY that should fix this. Expect to see an update soon,

[devdazed]

This fix is published in npm under version 0.5.7

[ncperng]

It now works fine here. Many thanks for the efforts.