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From "Richard Low (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-6685) Nodes never bootstrap if schema is empty
Date Mon, 10 Feb 2014 12:48:19 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard Low updated CASSANDRA-6685:
-----------------------------------

    Description: 
Since 1.2.15, bootstrap never completes if the schema is empty. The bootstrapping node endlessly
prints:

bq. {{INFO 12:37:44,863 JOINING: waiting for schema information to complete}}

until you add something to the schema (i.e. create a keyspace).

The problem looks to be caused by CASSANDRA-6648, where MigrationManager.isReadForBootstrap()
was changed to:

bq. {{return Schema.instance.getVersion() != null && !Schema.emptyVersion.equals(Schema.instance.getVersion());}}

This is wrong since {{Schema.emptyVersion.equals(Schema.instance.getVersion())}} is always
true if there is no schema.

We need some different logic for determining when the schema is propagated.

I haven't tested, but I expect this issue appears in 2.0.5 too.

  was:
Since 1.2.15, bootstrap never completes if the schema is empty. The bootstrapping node endlessly
prints:

 INFO 12:37:44,863 JOINING: waiting for schema information to complete

until you add something to the schema (i.e. create a keyspace).

The problem looks to be caused by CASSANDRA-6648, where MigrationManager.isReadForBootstrap()
was changed to:

{{return Schema.instance.getVersion() != null && !Schema.emptyVersion.equals(Schema.instance.getVersion());}}

This is wrong since {{Schema.emptyVersion.equals(Schema.instance.getVersion())}} is always
true if there is no schema.

We need some different logic for determining when the schema is propagated.

I haven't tested, but I expect this issue appears in 2.0.5 too.


> Nodes never bootstrap if schema is empty
> ----------------------------------------
>
>                 Key: CASSANDRA-6685
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6685
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Richard Low
>
> Since 1.2.15, bootstrap never completes if the schema is empty. The bootstrapping node
endlessly prints:
> bq. {{INFO 12:37:44,863 JOINING: waiting for schema information to complete}}
> until you add something to the schema (i.e. create a keyspace).
> The problem looks to be caused by CASSANDRA-6648, where MigrationManager.isReadForBootstrap()
was changed to:
> bq. {{return Schema.instance.getVersion() != null && !Schema.emptyVersion.equals(Schema.instance.getVersion());}}
> This is wrong since {{Schema.emptyVersion.equals(Schema.instance.getVersion())}} is always
true if there is no schema.
> We need some different logic for determining when the schema is propagated.
> I haven't tested, but I expect this issue appears in 2.0.5 too.



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