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From "Pavel Yaskevich (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4219) Problem with creating keyspace after drop
Date Fri, 11 May 2012 22:51:49 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273695#comment-13273695
] 

Pavel Yaskevich commented on CASSANDRA-4219:
--------------------------------------------

Ok, I understand your worries, we use CFS.getRangeSlice to fetch data which calls removeDeleted
in the process of request processing.
                
> Problem with creating keyspace after drop
> -----------------------------------------
>
>                 Key: CASSANDRA-4219
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4219
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.1.0
>         Environment: Debian 6.0.4 x64
>            Reporter: Jeff Williams
>            Assignee: Pavel Yaskevich
>             Fix For: 1.1.1
>
>         Attachments: 0001-Add-debug-logs.txt, CASSANDRA-4219.patch, system-91.223.192.26.log.gz,
system-debug.log.gz, system-startup-debug.log.gz, system.log.gz
>
>
> Hi,
> I'm doing testing and wanted to drop a keyspace (with a column family) to re-add it with
a different strategy. So I ran in cqlsh:
> DROP KEYSPACE PlayLog;
> CREATE KEYSPACE PlayLog WITH strategy_class = 'SimpleStrategy'
>  AND strategy_options:replication_factor = 2;
> And everything seemed to be fine. I ran some inserts, which also seemed to go fine, but
then selecting them gave me:
> cqlsh:PlayLog> select count(*) from playlog;
> TSocket read 0 bytes
> I wasn't sure what was wrong, so I tried dropping and creating again, and now when I
try to create I get:
> cqlsh> CREATE KEYSPACE PlayLog WITH strategy_class = 'SimpleStrategy'
>   ...   AND strategy_options:replication_factor = 2;
> TSocket read 0 bytes
> And the keyspace doesn't get created. In the log it shows:
> ERROR [Thrift:4] 2012-05-03 18:23:05,124 CustomTThreadPoolServer.java (line 204) Error
occurred during processing of message.
> java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.AssertionError
>        at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:372)
>        at org.apache.cassandra.service.MigrationManager.announce(MigrationManager.java:191)
>        at org.apache.cassandra.service.MigrationManager.announceNewKeyspace(MigrationManager.java:129)
>        at org.apache.cassandra.cql.QueryProcessor.processStatement(QueryProcessor.java:701)
>        at org.apache.cassandra.cql.QueryProcessor.process(QueryProcessor.java:875)
>        at org.apache.cassandra.thrift.CassandraServer.execute_cql_query(CassandraServer.java:1235)
>        at org.apache.cassandra.thrift.Cassandra$Processor$execute_cql_query.getResult(Cassandra.java:3458)
>        at org.apache.cassandra.thrift.Cassandra$Processor$execute_cql_query.getResult(Cassandra.java:3446)
>        at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:32)
>        at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34)
>        at org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:186)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>        at java.lang.Thread.run(Unknown Source)
> Caused by: java.util.concurrent.ExecutionException: java.lang.AssertionError
>        at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source)
>        at java.util.concurrent.FutureTask.get(Unknown Source)
>        at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:368)
>        ... 13 more
> Caused by: java.lang.AssertionError
>        at org.apache.cassandra.db.DefsTable.updateKeyspace(DefsTable.java:441)
>        at org.apache.cassandra.db.DefsTable.mergeKeyspaces(DefsTable.java:339)
>        at org.apache.cassandra.db.DefsTable.mergeSchema(DefsTable.java:269)
>        at org.apache.cassandra.service.MigrationManager$1.call(MigrationManager.java:214)
>        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
>        at java.util.concurrent.FutureTask.run(Unknown Source)
>        ... 3 more
> ERROR [MigrationStage:1] 2012-05-03 18:23:05,124 AbstractCassandraDaemon.java (line 134)
Exception in thread Thread[MigrationStage:1,5,main]
> java.lang.AssertionError
>        at org.apache.cassandra.db.DefsTable.updateKeyspace(DefsTable.java:441)
>        at org.apache.cassandra.db.DefsTable.mergeKeyspaces(DefsTable.java:339)
>        at org.apache.cassandra.db.DefsTable.mergeSchema(DefsTable.java:269)
>        at org.apache.cassandra.service.MigrationManager$1.call(MigrationManager.java:214)
>        at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
>        at java.util.concurrent.FutureTask.run(Unknown Source)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>        at java.lang.Thread.run(Unknown Source)
> Any ideas how I can recover from this?
> I am running version 1.1.0 and have tried nodetool repair, cleanup, compact. I can create
other keyspaces, but still can't create a keyspace called PlayLog even though it is not listed
anywhere.
> Jeff

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