Hi Jonathan Why would there be no data associated with the key? All I did was restart the node while client threads were writing to the cluster. And what kind of impact does this bug cause? I can't make any more compactions on that node and I have to wipe out the data?
How does the trunk fix this problem? Thanks Ray On Sat, Nov 14, 2009 at 2:42 PM, Jonathan Ellis <[email protected]> wrote: > The failing assertion is there to check that there actually is data > associated with the key. > > Easiest fix to try is code from trunk. > > On Sat, Nov 14, 2009 at 4:08 PM, Ramzi Rabah <[email protected]> wrote: >> Hi all: >> I am using version 0.4.2 of Cassandra, and whenever I restart one of >> the nodes only I am getting the following exception consistently: >> INFO - Compacting >> [/disk1/cassandra/data/Keyspace1/Datastore-1-Data.db,/disk1/cassandra/data/Keyspace1/Datastore-2-Data.db,/disk1/cassandra/data/Keyspace1/Datastore-3-Data.db,/disk1/cassandra/data/Keyspace1/Datastore-4-Data.db,/disk1/cassandra/data/Keyspace1/Datastore-7-Data.db,/disk1/cassandra/data/Keyspace1/Datastore-10-Data.db,/disk1/cassandra/data/Keyspace1/Datastore-13-Data.db,/disk1/cassandra/data/Keyspace1/Datastore-31-Data.db] >> INFO - Replaying >> /var/lib/cassandra/commitlog/CommitLog-1258227394451.log, >> /var/lib/cassandra/commitlog/CommitLog-1258235275214.log >> ERROR - Error in ThreadPoolExecutor >> java.util.concurrent.ExecutionException: java.lang.AssertionError >> at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222) >> at java.util.concurrent.FutureTask.get(FutureTask.java:83) >> at >> org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:86) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:887) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907) >> at java.lang.Thread.run(Thread.java:619) >> Caused by: java.lang.AssertionError >> at >> org.apache.cassandra.io.SSTableWriter.append(SSTableWriter.java:100) >> at >> org.apache.cassandra.db.ColumnFamilyStore.doFileCompaction(ColumnFamilyStore.java:1103) >> at >> org.apache.cassandra.db.ColumnFamilyStore.doCompaction(ColumnFamilyStore.java:686) >> at >> org.apache.cassandra.db.MinorCompactionManager$1.call(MinorCompactionManager.java:166) >> at >> org.apache.cassandra.db.MinorCompactionManager$1.call(MinorCompactionManager.java:163) >> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) >> at java.util.concurrent.FutureTask.run(FutureTask.java:138) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885) >> ... 2 more >> INFO - Flushing Memtable(Datastore)@349572395 >> >> Seems like it's happening in the compaction phase. Any idea why that might >> be? >> >> Thanks >> Ray >> >
