Without looking into details too closely, I'd say you're probably hitting https://issues.apache.org/jira/browse/CASSANDRA-5292 (since you use NTS+propertyFileSnitch+a DC name in caps).
Long story short, the CREATE KEYSPACE interpret your DC-TORONTO as dc-toronto, which then probably don't match what you have in you property file. This will be fixed in 1.2.3. In the meantime, a workaround would be to use the cassandra-cli to create/update your keyspace definition. -- Sylvain On Tue, Mar 5, 2013 at 11:24 AM, Gabriel Ciuloaica <gciuloa...@gmail.com>wrote: > Hello, > > I'm trying to find out what the problem is and where it is located. > I have a 3 nodes Cassandra cluster (1.2.1), RF=3. > I have a keyspace and a cf as defined (using PropertyFileSnitch): > > CREATE KEYSPACE backend WITH replication = { > 'class': 'NetworkTopologyStrategy', > 'DC-TORONTO': '3' > }; > > USE backend; > > CREATE TABLE avatars ( > id bigint PRIMARY KEY, > avatar blob, > image_type text > ) WITH > bloom_filter_fp_chance=0.**010000 AND > caching='KEYS_ONLY' AND > comment='' AND > dclocal_read_repair_chance=0.**000000 AND > gc_grace_seconds=864000 AND > read_repair_chance=0.100000 AND > replicate_on_write='true' AND > compaction={'class': 'SizeTieredCompactionStrategy'**} AND > compression={'sstable_**compression': 'SnappyCompressor'}; > > Status of the cluster: > Datacenter: DC-TORONTO > ====================== > Status=Up/Down > |/ State=Normal/Leaving/Joining/**Moving > -- Address Load Tokens Owns Host ID > Rack > UN 10.11.1.109 44.98 MB 256 46.8% > 726689df-edc3-49a0-b680-**370953994a8c > RAC2 > UN 10.11.1.200 6.57 MB 64 10.3% > d6d700d4-28aa-4722-b215-**a6a7d304b8e7 > RAC3 > UN 10.11.1.108 54.32 MB 256 42.8% > 73cd86a9-4efb-4407-9fe8-**9a1b3a277af7 > RAC1 > > I'm trying to read my writes, by using CQL (datastax-java-driver), using > LOCAL_QUORUM for reads and writes. For some reason, some of the writes are > lost. Not sure if it is a driver issue or cassandra issue. > Dinging further, using cqlsh client (1.2.1), I found a strange situation: > > select count(*) from avatars; > > count > ------- > 226 > > select id from avatars; > > id > --------- > 314 > 396 > 19 > ......... -> 77 rows in result > > select id, image_type from avatars; > > id | image_type > ---------+------------ > 332 | png > 314 | png > 396 | jpeg > 19 | png > 1250014 | jpeg > ........ -> 226 rows in result. > > I do not understand why for second select I'm able to retrieve just a part > of the rows and not all rows. > > Not sure if this is related or not to the initial problem. > > Any help is really appreciated. > Thanks, > Gabi > > > > >