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Posted to commits@cassandra.apache.org by "Tyler Patterson (Commented) (JIRA)" <ji...@apache.org> on 2012/02/10 18:40:59 UTC
[jira] [Commented] (CASSANDRA-3884) Intermittent
SchemaDisagreementException
[ https://issues.apache.org/jira/browse/CASSANDRA-3884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205571#comment-13205571 ]
Tyler Patterson commented on CASSANDRA-3884:
--------------------------------------------
I found another problem that might be related. When I drop and re-create a column family while that column family is being compacted, I sometimes see the following error in the logs:
{% code %}
ERROR [NonPeriodicTasks:1] 2012-02-10 00:32:27,773 SSTableDeletingTask.java (line 76) Unable to delete /tmp/dtest-l4IQpd/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-73-Data.db (it will be removed on server restart; we'll also retry after GC)
INFO [CompactionExecutor:4] 2012-02-10 00:32:27,774 CompactionTask.java (line 226) Compacted to [/tmp/dtest-l4IQpd/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-82-Data.db,]. 94,406,208 to 11,542,817 (~12% of original) bytes for 302,584 keys at 1.436150MB/s. Time: 7,665ms.
ERROR [NonPeriodicTasks:1] 2012-02-10 00:32:27,774 SSTableDeletingTask.java (line 76) Unable to delete /tmp/dtest-l4IQpd/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-69-Data.db (it will be removed on server restart; we'll also retry after GC)
ERROR [NonPeriodicTasks:1] 2012-02-10 00:32:27,778 SSTableDeletingTask.java (line 76) Unable to delete /tmp/dtest-l4IQpd/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-80-Data.db (it will be removed on server restart; we'll also retry after GC)
ERROR [NonPeriodicTasks:1] 2012-02-10 00:32:27,779 SSTableDeletingTask.java (line 76) Unable to delete /tmp/dtest-l4IQpd/test/node1/data/Keyspace1/Standard1/Keyspace1-Standard1-hc-79-Data.db (it will be removed on server restart; we'll also retry after GC)
{% code %}
failing_tests/change_schema_under_load.py
> Intermittent SchemaDisagreementException
> ----------------------------------------
>
> Key: CASSANDRA-3884
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3884
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.1.0
> Environment: using ccm on ubuntu.
> Reporter: Tyler Patterson
>
> Set up a cluster of two nodes (on cassandra-1.1), create some keyspaces and column families, and then make several schema changes. Everything is being done through only one of the nodes. About once every 10 times (on my setup) I get a SchemaDisagreementException when creating and dropping keyspaces.
> There is a dtest for this: schema_changes_test.py. If your environment behaves like mine, you might need to run it 10 times to get the error.
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