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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8356) Slice query on a super column family with counters doesn't get all the data
Date Fri, 21 Nov 2014 23:10:34 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14221557#comment-14221557
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Aleksey Yeschenko commented on CASSANDRA-8356:
----------------------------------------------

Looks like another (hopefully the last one this time) gift from CASSANDRA-3237.

Can you try to reproduce with regular, non-counter columns, but otherwise same schema/data?
I don't think this is going to be counters specific.

Thanks. 

> Slice query on a super column family with counters doesn't get all the data
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8356
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8356
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Nicolas Lalevée
>            Assignee: Aleksey Yeschenko
>             Fix For: 2.0.12
>
>
> We've finally been able to upgrade our cluster to 2.0.11, after CASSANDRA-7188 being
fixed.
> But now slice queries on a super column family with counters doesn't return all the expected
data. We first though because of all the trouble we had that we lost data, but there a way
to actually get the data, so nothing is lost; it just that cassandra seems to incorrectly
skip it.
> See the following CQL log:
> {noformat}
> cqlsh:Theme> desc table theme_view;
> CREATE TABLE theme_view (
>   key bigint,
>   column1 varint,
>   column2 text,
>   value counter,
>   PRIMARY KEY ((key), column1, column2)
> ) WITH COMPACT STORAGE AND
>   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
>   index_interval=128 AND
>   read_repair_chance=1.000000 AND
>   replicate_on_write='true' AND
>   populate_io_cache_on_flush='false' AND
>   default_time_to_live=0 AND
>   speculative_retry='99.0PERCENTILE' AND
>   memtable_flush_period_in_ms=0 AND
>   compaction={'class': 'SizeTieredCompactionStrategy'} AND
>   compression={'sstable_compression': 'SnappyCompressor'};
> cqlsh:Theme> select * from theme_view where key = 99421 limit 10;
>  key   | column1 | column2    | value
> -------+---------+------------+-------
>  99421 |     -12 | 2011-03-25 |    59
>  99421 |     -12 | 2011-03-26 |     5
>  99421 |     -12 | 2011-03-27 |     2
>  99421 |     -12 | 2011-03-28 |    40
>  99421 |     -12 | 2011-03-29 |    14
>  99421 |     -12 | 2011-03-30 |    17
>  99421 |     -12 | 2011-03-31 |     5
>  99421 |     -12 | 2011-04-01 |    37
>  99421 |     -12 | 2011-04-02 |     7
>  99421 |     -12 | 2011-04-03 |     4
> (10 rows)
> cqlsh:Theme> select * from theme_view where key = 99421 and column1 = -12 limit 10;
>  key   | column1 | column2    | value
> -------+---------+------------+-------
>  99421 |     -12 | 2011-03-25 |    59
>  99421 |     -12 | 2014-05-06 |    15
>  99421 |     -12 | 2014-06-06 |     7
>  99421 |     -12 | 2014-06-10 |    22
>  99421 |     -12 | 2014-06-11 |    34
>  99421 |     -12 | 2014-06-12 |    35
>  99421 |     -12 | 2014-06-13 |    26
>  99421 |     -12 | 2014-06-14 |    16
>  99421 |     -12 | 2014-06-15 |    24
>  99421 |     -12 | 2014-06-16 |    25
> (10 rows)
> {noformat}
> As you can see the second query should return data from 2012, but it is not. Via thrift,
we have the exact same bug.



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