Digant Modha created CASSANDRA-7817:
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Summary: when entire row is deleted, the records in the row seem
to counted toward TombstoneOverwhelmingException
Key: CASSANDRA-7817
URL: https://issues.apache.org/jira/browse/CASSANDRA-7817
Project: Cassandra
Issue Type: Bug
Environment: Cassandra version 2.0.9
Reporter: Digant Modha
I saw this behavior in development cluster, but was able to reproduce it in a
single node setup. In development cluster I had more than 52,000 records and
used default values for tombstone threshold.
For testing purpose, I used lower numbers for thresholds:
tombstone_warn_threshold: 100
tombstone_failure_threshold: 1000
Here are the steps:
table:
CREATE TABLE cstestcf_conflate_data (
key ascii,
datehr int,
validfrom timestamp,
asof timestamp,
copied boolean,
datacenter ascii,
storename ascii,
value blob,
version ascii,
PRIMARY KEY ((key, datehr), validfrom, asof)
) WITH CLUSTERING ORDER BY (validfrom DESC, asof DESC) ;
cqlsh:cstestks> select count(*) from cstestcf_conflate_data WHERE KEY='BK_2'
and datehr = 2014082119;
count
-------
470
(1 rows)
cqlsh:cstestks> delete from cstestcf_conflate_data WHERE KEY='BK_2' and datehr
= 2014082119;
cqlsh:cstestks> select count(*) from cstestcf_conflate_data WHERE KEY='BK_2'
and datehr = 2014082119;
Request did not complete within rpc_timeout.
Exception in system.log:
java.lang.RuntimeException:
org.apache.cassandra.db.filter.TombstoneOverwhelmingException
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1931)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.cassandra.db.filter.TombstoneOverwhelmingException
at
org.apache.cassandra.db.filter.SliceQueryFilter.collectReducedColumns(SliceQueryFilter.java:202)
at
org.apache.cassandra.db.filter.QueryFilter.collateColumns(QueryFilter.java:122)
at
org.apache.cassandra.db.filter.QueryFilter.collateOnDiskAtom(QueryFilter.java:80)
at
org.apache.cassandra.db.filter.QueryFilter.collateOnDiskAtom(QueryFilter.java:72)
at
org.apache.cassandra.db.CollationController.collectAllData(CollationController.java:297)
at
org.apache.cassandra.db.CollationController.getTopLevelColumns(CollationController.java:53)
at
org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:1547)
at
org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:1376)
at org.apache.cassandra.db.Keyspace.getRow(Keyspace.java:333)
at
org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:65)
at
org.apache.cassandra.service.StorageProxy$LocalReadRunnable.runMayThrow(StorageProxy.java:1363)
at
org.apache.cassandra.service.StorageProxy$DroppableRunnable.run(StorageProxy.java:1927)
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