Daniel Strawson created CASSANDRA-4973:
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Summary: Secondary Index stops returning rows
Key: CASSANDRA-4973
URL: https://issues.apache.org/jira/browse/CASSANDRA-4973
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.1.6, 1.1.2
Environment: Centos 6.3, Java 1.6.0_35, cass. 1.1.2 upgraded to 1.1.6
Reporter: Daniel Strawson
I've been using cassandra on a project for a little while in development and
have recently suddenly started having an issue where the secondary index stops
working, this is happening on my new production system, we are not yet live.
Things work ok one moment, then suddenly queries to the cf through the
secondary index stop returning data. I've seen it happen on 3 CFs. I've tried:
- various nodetools repair / scrub / rebuild_indexes options, none seem to make
a difference.
- Doing a 'update column family <whatever> with column_metadata=[]' then
repeating with my correct column_metadata definition. This seems to fix the
problem (temporarily) until it comes back.
The last time it happened I had just restarted cassandra, so it could be that
which is causing the issue, I've got the production system ok at the moment, I
will try restarting a bit later when its not being used and if I can get the
issue to reoccur I will add more information.
Here is an example of the create column family I'm using for one of the CFs
that affected:
create column family region
with column_type = 'Standard'
and comparator = 'UTF8Type'
and default_validation_class = 'BytesType'
and key_validation_class = 'UTF8Type'
and read_repair_chance = 0.1
and dclocal_read_repair_chance = 0.0
and gc_grace = 864000
and min_compaction_threshold = 4
and max_compaction_threshold = 32
and replicate_on_write = true
and compaction_strategy =
'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'
and caching = 'KEYS_ONLY'
and column_metadata = [
{column_name : 'label',
validation_class : UTF8Type},
{column_name : 'countryCode',
validation_class : UTF8Type,
index_name : 'region_countryCode_idx',
index_type : 0},
]
and compression_options = {'sstable_compression' :
'org.apache.cassandra.io.compress.SnappyCompressor'};
I've noticed that CASSANDRA-4785 looks similar, in my case once the system has
the problem, it doesn't go away until I fix it.
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