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From Michal Augustýn <augustyn.mic...@gmail.com>
Subject Re: cant seem to figure out secondary index definition
Date Tue, 15 Feb 2011 14:52:55 GMT
Hi,

if you download Cassandra and look into "conf/cassandra.yaml" then you can
see this:

"this keyspace definition is for demonstration purposes only. Cassandra will
not load these definitions during startup. See
http://wiki.apache.org/cassandra/FAQ#no_keyspaces for an explanation."

So you should make all schema-related operation via Thrift/AVRO API, or you
can use Cassandra CLI.

Augi


2011/2/15 Roland Gude <roland.gude@yoochoose.com>

> Hi,
>
>
>
> i am a little puzzled on creation of secondary indexes and the docs in that
> area are still very sparse.
>
> What I am trying to do is – in a columnfamily with TimeUUID comparator, I
> want the “special” timeuuid 00000000-0000-1000-0000-000000000000 to be
> indexed. The value being some UTF8 string on which I want to perform
> equality checks.
>
>
>
> What do I need to put in my cassandra.yaml file?
>
> Something like this?
>
>
>
>   - column_metadata: [{name: 00000000-0000-1000-0000-000000000000,
> validation_class: UTF8Type, index_name: MyIndex, index_type: KEYS}]
>
>
>
> This gives me that error:
>
>
>
> 15:05:12.492 [pool-1-thread-1] ERROR o.a.c.config.DatabaseDescriptor -
> Fatal error: null; Can't construct a java object for tag:yaml.org,2002:org.apache.cassandra.config.Config;
> exception=Cannot create property=keyspaces for
> JavaBean=org.apache.cassandra.config.Config@7eb6e2; Cannot create
> property=column_families for
> JavaBean=org.apache.cassandra.config.RawKeyspace@987a33; Cannot create
> property=column_metadata for
> JavaBean=org.apache.cassandra.config.RawColumnFamily@716cb7; Cannot create
> property=validation_class for
> JavaBean=org.apache.cassandra.config.RawColumnDefinition@e29820; Unable to
> find property 'validation_class' on class:
> org.apache.cassandra.config.RawColumnDefinition
>
> Bad configuration; unable to start server
>
>
>
>
>
> I am furthermor uncertain if the column name will be correctly used if
> given like this. Should I put the byte representation of the uuid there?
>
>
>
> Greetings,
>
> roland
>
> --
>
> YOOCHOOSE GmbH
>
>
>
> Roland Gude
>
> Software Engineer
>
>
>
> Im Mediapark 8, 50670 Köln
>
>
>
> +49 221 4544151 (Tel)
>
> +49 221 4544159 (Fax)
>
> +49 171 7894057 (Mobil)
>
>
>
>
>
> Email: roland.gude@yoochoose.com
>
> WWW: www.yoochoose.com
>
>
>
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>
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>
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>
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>
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>
>
>

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