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Posted to commits@cassandra.apache.org by "Gary Dusbabek (JIRA)" <ji...@apache.org> on 2010/07/27 22:56:18 UTC
[jira] Commented: (CASSANDRA-1292) Multiple migrations might run at
once
[ https://issues.apache.org/jira/browse/CASSANDRA-1292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892925#action_12892925 ]
Gary Dusbabek commented on CASSANDRA-1292:
------------------------------------------
same thing goes for loadSchemaFromYaml()
> Multiple migrations might run at once
> -------------------------------------
>
> Key: CASSANDRA-1292
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1292
> Project: Cassandra
> Issue Type: Bug
> Reporter: Stu Hood
> Assignee: Gary Dusbabek
> Priority: Critical
> Fix For: 0.7.0
>
>
> The service.MigrationManager class manages a MIGRATION_STAGE where nodes should execute db.migration.Migration instances.
> The problem is that the node that a client connects to via Thrift or Avro initiates the migration in their client thread (calls migration.apply). Instead, the Thrift and Avro clients should ensure that the migration occurs in MIGRATION_STAGE, and should block until the migration is applied by the stage.
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