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From Sasha Dolgy <sdo...@gmail.com>
Subject Re: forced index creation?
Date Wed, 13 Apr 2011 19:12:06 GMT
odd ... checked again today.   still not there.  will dig around the
logs a bit.  my indexes work ... just not seeing anything in the CLI
... are you also on 0.7.4 ?

    ColumnFamily: applications
      Columns sorted by: org.apache.cassandra.db.marshal.UTF8Type
      Row cache size / save period: 0.0/0
      Key cache size / save period: 200000.0/14400
      Memtable thresholds: 0.24843749999999998/53/1440
      GC grace seconds: 864000
      Compaction min/max thresholds: 4/32
      Read repair chance: 1.0
      Column Metadata:
        Column Name: app_name (app_name)
          Validation Class: org.apache.cassandra.db.marshal.UTF8Type
        Column Name: app_id (app_id)
          Validation Class: org.apache.cassandra.db.marshal.UTF8Type
        Column Name: app_uri (app_uri)
          Validation Class: org.apache.cassandra.db.marshal.UTF8Type
          Index Type: KEYS


On Wed, Apr 13, 2011 at 4:35 AM, aaron morton <aaron@thelastpickle.com> wrote:
> Built indexes are there for me
>
> [default@unknown] describe keyspace Keyspace1;
> Keyspace: Keyspace1:
>  Replication Strategy: org.apache.cassandra.locator.SimpleStrategy
>    Replication Factor: 1
>  Column Families:
>    ColumnFamily: Indexed1
>      default_validation_class: org.apache.cassandra.db.marshal.LongType
>      Columns sorted by: org.apache.cassandra.db.marshal.UTF8Type
>      Row cache size / save period in seconds: 0.0/0
>      Key cache size / save period in seconds: 200000.0/14400
>      Memtable thresholds: 0.14531249999999998/31/1440 (millions of ops/minutes/MB)
>      GC grace seconds: 864000
>      Compaction min/max thresholds: 4/32
>      Read repair chance: 1.0
>      Built indexes: [Indexed1.birthdate_idx]
>      Column Metadata:
>        Column Name: birthdate
>          Validation Class: org.apache.cassandra.db.marshal.LongType
>          Index Name: birthdate_idx
>          Index Type: KEYS
>
> When the index is created existing data is indexed async, and any new data is indexed
as part of the write. Not sure how to force/check things though.
>
> Can you turn logging up to DEBUG and compare the requests between the two clusters ?
>
> Aaron
>
> On 13 Apr 2011, at 05:46, Sasha Dolgy wrote:
>
>> hi, just deployed a new keyspace on 0.7.4 and added the following column family:
>>
>> create column family applications with comparator=UTF8Type and column_metadata=[
>>    {column_name: app_name, validation_class: UTF8Type},
>>    {column_name: app_uri, validation_class: UTF8Type,index_type: KEYS},
>>    {column_name: app_id, validation_class: UTF8Type}
>> ];
>>
>> I then proceeded to add two new rows of data to it.  When i try and
>> query the secondary index on app_uri, my query with phpcassa fails.
>> on the same CF in a different cluster, it works fine.  when comparing
>> the CF between clusters, see there's a difference: ---  Built indexes:
>> --- shows up when i run --> describe keyspace foobar;
>>
>>
>>
>>      Column Metadata:
>>        Column Name: app_name (app_name)
>>          Validation Class: org.apache.cassandra.db.marshal.UTF8Type
>>        Column Name: app_id (app_id)
>>          Validation Class: org.apache.cassandra.db.marshal.UTF8Type
>>        Column Name: app_uri (app_uri)
>>          Validation Class: org.apache.cassandra.db.marshal.UTF8Type
>>          Index Type: KEYS
>>
>> Checking out a bit further:
>>
>> get applications where 'app_uri' = 'get-test';
>> -------------------
>> RowKey: 9d699733-9afe-4a41-83ca-c60d040dacc0
>>
>>
>> get applications where 'app_id' = '9d699733-9afe-4a41-83ca-c60d040dacc0';
>> No indexed columns present in index clause with operator EQ
>>
>> So .. I can see that the secondary indexes are working.
>>
>> Question 1:  Has "Built indexes" been removed from the "describe
>> keyspace" output?  Or have i done something ....
>> Question 2:  Is there a way to force secondary index creation?
>>
>>
>>
>>
>>
>> --
>> Sasha Dolgy
>> sasha.dolgy@gmail.com
>
>



-- 
Sasha Dolgy
sasha.dolgy@gmail.com

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