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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (CASSANDRA-2809) In the Cli, update column family <cf> with comparator; create Column metadata
Date Fri, 15 Jul 2011 21:21:00 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-2809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis reopened CASSANDRA-2809:
---------------------------------------


bq. That column metadata is a feature: when you use a function call in SET statement it is
storing information about validation class for individual columns locally

Ah, I remember that.  But this shouldn't show up in a describe keyspace or we cause the above
confusion. :)

> In the Cli, update column family <cf> with comparator; create Column metadata
> -----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-2809
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2809
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>         Environment: Ubuntu 10.10, 32bit
> java version "1.6.0_24"
> installed from Debian packages of Brisk-beta2
>            Reporter: Silvère Lestang
>            Assignee: Pavel Yaskevich
>            Priority: Minor
>             Fix For: 0.8.2
>
>         Attachments: 2809-validate.txt
>
>
> Using cassandra-cli, I can't update the comparator of a column family with the type I
want and when I did it with BytesType, Column metadata appear for each of my existing columns.
> Step to reproduce:
> {code}
> [default@unknown] create keyspace Test
>     with placement_strategy = 'org.apache.cassandra.locator.SimpleStrategy'
>     and strategy_options = [{replication_factor:1}];
> [default@unknown] use Test;
> Authenticated to keyspace: Test
> [default@Test] create column family test;
> [default@Test] describe keyspace;
> ...
>     ColumnFamily: test
>       Key Validation Class: org.apache.cassandra.db.marshal.BytesType
>       Default column value validator: org.apache.cassandra.db.marshal.BytesType
>       Columns sorted by: org.apache.cassandra.db.marshal.BytesType
>       Row cache size / save period in seconds: 0.0/0
>       Key cache size / save period in seconds: 200000.0/14400
>       Memtable thresholds: 0.571875/122/1440 (millions of ops/MB/minutes)
>       GC grace seconds: 864000
>       Compaction min/max thresholds: 4/32
>       Read repair chance: 1.0
>       Replicate on write: false
>       Built indexes: []
> ...
> [default@Test] update column family test with comparator = 'LongType';
> comparators do not match.
> {code}
> why?? the CF is empty
> {code}
> [default@Test] update column family test with comparator = 'BytesType';
> f8e4dcb0-9cca-11e0-0000-d0583497e7ff
> Waiting for schema agreement...
> ... schemas agree across the cluster
> [default@Test] describe keyspace;
> ...
>     ColumnFamily: test
>       Key Validation Class: org.apache.cassandra.db.marshal.BytesType
>       Default column value validator: org.apache.cassandra.db.marshal.BytesType
>       Columns sorted by: org.apache.cassandra.db.marshal.BytesType
>       Row cache size / save period in seconds: 0.0/0
>       Key cache size / save period in seconds: 200000.0/14400
>       Memtable thresholds: 0.571875/122/1440 (millions of ops/MB/minutes)
>       GC grace seconds: 864000
>       Compaction min/max thresholds: 4/32
>       Read repair chance: 1.0
>       Replicate on write: false
>       Built indexes: []
> ...
> [default@Test] set test[ascii('row1')][long(1)]=integer(35);
> set test[ascii('row1')][long(2)]=integer(36);
> set test[ascii('row1')][long(3)]=integer(38);
> set test[ascii('row2')][long(1)]=integer(45);
> set test[ascii('row2')][long(2)]=integer(42);
> set test[ascii('row2')][long(3)]=integer(33);
> [default@Test] list test;
> Using default limit of 100
> -------------------
> RowKey: 726f7731
> => (column=0000000000000001, value=35, timestamp=1308744931122000)
> => (column=0000000000000002, value=36, timestamp=1308744931124000)
> => (column=0000000000000003, value=38, timestamp=1308744931125000)
> -------------------
> RowKey: 726f7732
> => (column=0000000000000001, value=45, timestamp=1308744931127000)
> => (column=0000000000000002, value=42, timestamp=1308744931128000)
> => (column=0000000000000003, value=33, timestamp=1308744932722000)
> 2 Rows Returned.
> [default@Test] update column family test with comparator = 'LongType';
> comparators do not match.
> {code}
> same question than before, my columns contains only long, why I can't?
> {code}
> [default@Test] update column family test with comparator = 'BytesType';
> [default@Test] describe keyspace;                                      
> Keyspace: Test:
>   Replication Strategy: org.apache.cassandra.locator.SimpleStrategy
>     Options: [replication_factor:1]
>   Column Families:
>     ColumnFamily: test
>       Key Validation Class: org.apache.cassandra.db.marshal.BytesType
>       Default column value validator: org.apache.cassandra.db.marshal.BytesType
>       Columns sorted by: org.apache.cassandra.db.marshal.BytesType
>       Row cache size / save period in seconds: 0.0/0
>       Key cache size / save period in seconds: 200000.0/14400
>       Memtable thresholds: 0.571875/122/1440 (millions of ops/MB/minutes)
>       GC grace seconds: 864000
>       Compaction min/max thresholds: 4/32
>       Read repair chance: 1.0
>       Replicate on write: false
>       Built indexes: []
>       Column Metadata:
>         Column Name:  (0000000000000001)
>           Validation Class: org.apache.cassandra.db.marshal.IntegerType
>         Column Name:  (0000000000000003)
>           Validation Class: org.apache.cassandra.db.marshal.IntegerType
>         Column Name:  (0000000000000002)
>           Validation Class: org.apache.cassandra.db.marshal.IntegerType
> {code}
> Column Metadata appear from nowhere. I don't think that it's expected.

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