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https://issues.apache.org/jira/browse/CASSANDRA-1477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12907612#action_12907612
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Gary Dusbabek commented on CASSANDRA-1477:
------------------------------------------
On the ML you indicated you had a unit tests that was producing this failure.
Is it possible for you to attach it to this ticket? I would like to include it
in our tests.
> drop/recreate column family race condition
> ------------------------------------------
>
> Key: CASSANDRA-1477
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1477
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7 beta 2
> Environment: 1 Node cluster, latest code from 0.7 trunk
> Reporter: B. Todd Burruss
> Assignee: Gary Dusbabek
> Fix For: 0.7 beta 2
>
>
> using 0.7 latest from trunk as of few minutes ago. 1 client, 1 node
> i have the scenario where i want to drop a column family and recreate it
> - unit testing for instance, is a good reason you may want to do this
> (always start fresh).
> the problem i observe is that if i do the following:
> 1 - drop the column family
> 2 - recreate it
> 3 - read data from a key that existed before dropping, but doesn't exist now
> if those steps happen fast enough, i will get the old row - definitely
> no good.
> if they happen slow enough, get_slice throws:
> "org.apache.thrift.TApplicationException: Internal error processing
> get_slice"
> .. and on the server i see:
> 2010-09-07 13:53:48,086 ERROR
> [org.apache.cassandra.thrift.Cassandra$Processor] (pool-1-thread-4:) -
> Internal error processing get_slice
> java.lang.RuntimeException: java.util.concurrent.ExecutionException:
> java.io.IOError: java.io.FileNotFoundException:
> cassandra-data/data/Queues/test_1283892789285_Waiting-e-1-Data.db (No
> such file or directory)
> at
> org.apache.cassandra.service.StorageProxy.weakRead(StorageProxy.java:275)
> at
> org.apache.cassandra.service.StorageProxy.readProtocol(StorageProxy.java:218)
> at
> org.apache.cassandra.thrift.CassandraServer.readColumnFamily(CassandraServer.java:114)
> at
> org.apache.cassandra.thrift.CassandraServer.getSlice(CassandraServer.java:220)
> at
> org.apache.cassandra.thrift.CassandraServer.multigetSliceInternal(CassandraServer.java:299)
> at
> org.apache.cassandra.thrift.CassandraServer.get_slice(CassandraServer.java:260)
> at
> org.apache.cassandra.thrift.Cassandra$Processor$get_slice.process(Cassandra.java:2795)
> at
> org.apache.cassandra.thrift.Cassandra$Processor.process(Cassandra.java:2651)
> at
> org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:167)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
> Caused by: java.util.concurrent.ExecutionException: java.io.IOError:
> java.io.FileNotFoundException:
> cassandra-data/data/Queues/test_1283892789285_Waiting-e-1-Data.db (No
> such file or directory)
> at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
> at java.util.concurrent.FutureTask.get(FutureTask.java:83)
> at
> org.apache.cassandra.service.StorageProxy.weakRead(StorageProxy.java:271)
> ... 11 more
> Caused by: java.io.IOError: java.io.FileNotFoundException:
> cassandra-data/data/Queues/test_1283892789285_Waiting-e-1-Data.db (No
> such file or directory)
> at
> org.apache.cassandra.io.util.BufferedSegmentedFile.getSegment(BufferedSegmentedFile.java:68)
> at
> org.apache.cassandra.io.sstable.SSTableReader.getFileDataInput(SSTableReader.java:509)
> at
> org.apache.cassandra.db.columniterator.SSTableSliceIterator.<init>(SSTableSliceIterator.java:49)
> at
> org.apache.cassandra.db.filter.SliceQueryFilter.getSSTableColumnIterator(SliceQueryFilter.java:65)
> at
> org.apache.cassandra.db.filter.QueryFilter.getSSTableColumnIterator(QueryFilter.java:76)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getTopLevelColumns(ColumnFamilyStore.java:961)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:856)
> at
> org.apache.cassandra.db.ColumnFamilyStore.getColumnFamily(ColumnFamilyStore.java:826)
> at org.apache.cassandra.db.Table.getRow(Table.java:321)
> at
> org.apache.cassandra.db.SliceFromReadCommand.getRow(SliceFromReadCommand.java:63)
> at
> org.apache.cassandra.service.StorageProxy$weakReadLocalCallable.call(StorageProxy.java:737)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> ... 3 more
> Caused by: java.io.FileNotFoundException:
> cassandra-data/data/Queues/test_1283892789285_Waiting-e-1-Data.db (No
> such file or directory)
> at java.io.RandomAccessFile.open(Native Method)
> at java.io.RandomAccessFile.<init>(RandomAccessFile.java:212)
> at java.io.RandomAccessFile.<init>(RandomAccessFile.java:98)
> at
> org.apache.cassandra.io.util.BufferedRandomAccessFile.<init>(BufferedRandomAccessFile.java:142)
> at
> org.apache.cassandra.io.util.BufferedSegmentedFile.getSegment(BufferedSegmentedFile.java:62)
> ... 15 more
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