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https://issues.apache.org/jira/browse/CASSANDRA-2950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081969#comment-13081969
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Brandon Williams commented on CASSANDRA-2950:
---------------------------------------------
bq. but we record CL "context" at time of flush in the sstable it makes, and we
on replay we ignore any mutations from before that position.
I think there's something wrong with that, then:
{noformat}
INFO 21:25:15,274 Replaying
/var/lib/cassandra/commitlog/CommitLog-1312924388053.log
DEBUG 21:25:15,290 Replaying
/var/lib/cassandra/commitlog/CommitLog-1312924388053.log starting at 0
DEBUG 21:25:15,291 Reading mutation at 0
DEBUG 21:25:15,295 replaying mutation for system.4c: {ColumnFamily(LocationInfo
[47656e65726174696f6e:false:4@1312924388140000,])}
DEBUG 21:25:15,321 Reading mutation at 89
DEBUG 21:25:15,322 replaying mutation for system.426f6f747374726170:
{ColumnFamily(LocationInfo [42:false:1@1312924388203,])}
DEBUG 21:25:15,322 Reading mutation at 174
DEBUG 21:25:15,322 replaying mutation for system.4c: {ColumnFamily(LocationInfo
[546f6b656e:false:16@1312924388204,])}
DEBUG 21:25:15,322 Reading mutation at 270
DEBUG 21:25:15,324 replaying mutation for Keyspace1.3030:
{ColumnFamily(Standard1
[C0:false:34@1312924813259,C1:false:34@1312924813260,C2:false:34@1312924813260,C3:false:34@1312924813260,C4:false:34@1312924813260,])}
{noformat}
The last entry there is the first of many errant mutations.
> Data from truncated CF reappears after server restart
> -----------------------------------------------------
>
> Key: CASSANDRA-2950
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2950
> Project: Cassandra
> Issue Type: Bug
> Reporter: Cathy Daw
> Assignee: Brandon Williams
>
> * Configure 3 node cluster
> * Ensure the java stress tool creates Keyspace1 with RF=3
> {code}
> // Run Stress Tool to generate 10 keys, 1 column
> stress --operation=INSERT -t 2 --num-keys=50 --columns=20
> --consistency-level=QUORUM --average-size-values --replication-factor=3
> --create-index=KEYS --nodes=cathy1,cathy2
> // Verify 50 keys in CLI
> use Keyspace1;
> list Standard1;
> // TRUNCATE CF in CLI
> use Keyspace1;
> truncate counter1;
> list counter1;
> // Run stress tool and verify creation of 1 key with 10 columns
> stress --operation=INSERT -t 2 --num-keys=1 --columns=10
> --consistency-level=QUORUM --average-size-values --replication-factor=3
> --create-index=KEYS --nodes=cathy1,cathy2
> // Verify 1 key in CLI
> use Keyspace1;
> list Standard1;
> // Restart all three nodes
> // You will see 51 keys in CLI
> use Keyspace1;
> list Standard1;
> {code}
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