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From "Pavel Yaskevich (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-4837) IllegalStateException when upgrading schema
Date Fri, 19 Oct 2012 21:16:12 GMT


Pavel Yaskevich commented on CASSANDRA-4837:

[~wadey] It looks like related to CASSANDRA-4698. Can you dump the user-defined schema using
CLI 'show schema' command, remove all sstables from system/schema_* directories on the nodes
and try to re-create schema back using CLI, that would fix the problem with deleted-at and
you will be able to do a safe rolling restart.
> IllegalStateException when upgrading schema
> -------------------------------------------
>                 Key: CASSANDRA-4837
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.6
>         Environment: Linux
>            Reporter: Wade Simmons
>            Assignee: Pavel Yaskevich
> I am upgrading a cluster from 1.1.2 to 1.1.6. When restarting the second node with new
code, I am seeing this exception repeat in the logs:
> {code}
> ERROR [InternalResponseStage:21] 2012-10-19 00:41:26,794
(line 135) Exception in thread Thread[InternalResponseStage:21,5,main]
> java.lang.IllegalStateException: One row required, 0 found
>         at
>         at org.apache.cassandra.config.KSMetaData.fromSchema(
>         at org.apache.cassandra.db.DefsTable.mergeKeyspaces(
>         at org.apache.cassandra.db.DefsTable.mergeSchema(
>         at org.apache.cassandra.db.DefsTable.mergeRemoteSchema(
>         at org.apache.cassandra.service.MigrationManager$MigrationTask$1.response(
>         at
>         at
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(
>         at java.util.concurrent.ThreadPoolExecutor$
>         at
> {code}
> I added in some debugging logging to see what Row it was trying to load, and I see this:
> {code}
> Unable to load keyspace schema: Row(key=DecoratedKey(112573196966143652100562749464385838776,
5365676d656e7473496e746567726174696f6e54657374), cf=ColumnFamily(schema_keyspaces -deleted
at 1350665377628000- []))
> {code}
> The hex key translates to a schema that exists in schema_keyspaces when I query on the
rest of the cluster. I tried restarting one of the other nodes without upgrading the jar and
it restarted without exceptions.

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