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From "Gary Ogasawara" <ga...@geminimobile.com>
Subject CounterColumn java.lang.AssertionError: Wrong class type.
Date Mon, 27 Feb 2012 02:54:46 GMT
Using v1.0.7, we see many of the following errors.
Any thoughts on why this is occurring?
Thanks in advance.
 -gary

ERROR [ReadRepairStage:9] 2012-02-24 18:31:28,623
AbstractCassandraDaemon.java
(line 139) Fatal exception in thread Thread[ReadRepairStage:9,5,main]
java.lang.AssertionError: Wrong class type.
        at
org.apache.cassandra.db.CounterColumn.diff(CounterColumn.java:112)
        at org.apache.cassandra.db.ColumnFamily.diff(ColumnFamily.java:230)
        at org.apache.cassandra.db.ColumnFamily.diff(ColumnFamily.java:309)
        at
org.apache.cassandra.service.RowRepairResolver.scheduleRepairs(RowRepairReso
lver.java:117)
        at
org.apache.cassandra.service.RowRepairResolver.resolve(RowRepairResolver.jav
a:94)
        at
org.apache.cassandra.service.AsyncRepairCallback$1.runMayThrow(AsyncRepairCa
llback.java:54)
        at
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:11
10)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:6
03)
        at java.lang.Thread.run(Thread.java:722)
ERROR [ReadRepairStage:9] 2012-02-24 18:31:28,625
AbstractCassandraDaemon.java
(line 139) Fatal exception in thread Thread[ReadRepairStage:9,5,main]
------

>From cassandra-cli "show schema", I think the relevant CF is:

create column family QOSCounters
  with column_type = 'Standard'
  and comparator = 'UTF8Type'
  and default_validation_class = 'CounterColumnType'
  and key_validation_class = 'UTF8Type'
  and rows_cached = 0.0
  and row_cache_save_period = 0
  and row_cache_keys_to_save = 2147483647
  and keys_cached = 200000.0
  and key_cache_save_period = 14400
  and read_repair_chance = 1.0
  and gc_grace = 604800
  and min_compaction_threshold = 4
  and max_compaction_threshold = 32
  and replicate_on_write = true
  and row_cache_provider = 'SerializingCacheProvider'
  and compaction_strategy =
'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy';



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