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From "Erick Tryzelaar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-1012) Problems reading remote rows in trunk?
Date Thu, 22 Apr 2010 21:54:49 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-1012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12860037#action_12860037
] 

Erick Tryzelaar commented on CASSANDRA-1012:
--------------------------------------------

Yes, I believe so. I did some instrumenting on the code, and as best as I can tell that when
I read from machine2, it is getting a db.Row back from machine1, but the db.Row's db.ColumnFamily
is being deserialized to null, and then the ThriftServer returns an empty result set to the
client.

> Problems reading remote rows in trunk?
> --------------------------------------
>
>                 Key: CASSANDRA-1012
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1012
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.7
>            Reporter: Erick Tryzelaar
>
> I've run into a problem with my small 3 node cluster where quorum reads do not return
anything. I'm inserting 10 rows into a fresh database with replication factor 3. I've inserted
with QUORUM, but when I try to read back at QUORUM no data gets returned. However, if I use
the consistency level ONE, I do get results.
> I've dug a bit into this problem, and it appears that internally ThriftServer.getSlice
is finding the column family for the given key, but it's not finding any of the columns, so
thrift doesn't return anything.
> In order to confirm there being a problem, I dropped the RF down to 1 and rebuilt the
cluster. I then reinserted some data, and I can only read data off of one machine.

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