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Posted to commits@cassandra.apache.org by "Sylvain Lebresne (JIRA)" <ji...@apache.org> on 2011/07/27 11:00:11 UTC
[jira] [Created] (CASSANDRA-2953) Use lazy initialization instead
of class initialization in NodeId
Use lazy initialization instead of class initialization in NodeId
-----------------------------------------------------------------
Key: CASSANDRA-2953
URL: https://issues.apache.org/jira/browse/CASSANDRA-2953
Project: Cassandra
Issue Type: Improvement
Components: Core
Affects Versions: 0.8.0
Reporter: Sylvain Lebresne
Assignee: Sylvain Lebresne
Priority: Trivial
Fix For: 0.8.3
Attachments: 0001-Use-lazy-initialization-for-NodeId.patch
The class initialization of NodeId triggers a read to a system table. When using the class introduced in CASSANDRA-2911, this happens to be triggered even though this is not necessary. This a a pain because when you use those classes, you don't have to have to set reasonable values for the data_dir and commitlog_dir in cassandra.yaml (it is a pain to have to have a cassandra.yaml in the classpath in the first place, but that's for another ticket).
This ticket proposes using lazy initialization in NodeId to avoid that.
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[jira] [Commented] (CASSANDRA-2953) Use lazy initialization instead
of class initialization in NodeId
Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071723#comment-13071723 ]
Jonathan Ellis commented on CASSANDRA-2953:
-------------------------------------------
+1
> Use lazy initialization instead of class initialization in NodeId
> -----------------------------------------------------------------
>
> Key: CASSANDRA-2953
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2953
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.8.0
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Priority: Trivial
> Fix For: 0.8.3
>
> Attachments: 0001-Use-lazy-initialization-for-NodeId.patch
>
>
> The class initialization of NodeId triggers a read to a system table. When using the class introduced in CASSANDRA-2911, this happens to be triggered even though this is not necessary. This a a pain because when you use those classes, you don't have to have to set reasonable values for the data_dir and commitlog_dir in cassandra.yaml (it is a pain to have to have a cassandra.yaml in the classpath in the first place, but that's for another ticket).
> This ticket proposes using lazy initialization in NodeId to avoid that.
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[jira] [Updated] (CASSANDRA-2953) Use lazy initialization instead
of class initialization in NodeId
Posted by "Sylvain Lebresne (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sylvain Lebresne updated CASSANDRA-2953:
----------------------------------------
Attachment: 0001-Use-lazy-initialization-for-NodeId.patch
> Use lazy initialization instead of class initialization in NodeId
> -----------------------------------------------------------------
>
> Key: CASSANDRA-2953
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2953
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.8.0
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Priority: Trivial
> Fix For: 0.8.3
>
> Attachments: 0001-Use-lazy-initialization-for-NodeId.patch
>
>
> The class initialization of NodeId triggers a read to a system table. When using the class introduced in CASSANDRA-2911, this happens to be triggered even though this is not necessary. This a a pain because when you use those classes, you don't have to have to set reasonable values for the data_dir and commitlog_dir in cassandra.yaml (it is a pain to have to have a cassandra.yaml in the classpath in the first place, but that's for another ticket).
> This ticket proposes using lazy initialization in NodeId to avoid that.
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[jira] [Commented] (CASSANDRA-2953) Use lazy initialization instead
of class initialization in NodeId
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/CASSANDRA-2953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071831#comment-13071831 ]
Hudson commented on CASSANDRA-2953:
-----------------------------------
Integrated in Cassandra-0.8 #240 (See [https://builds.apache.org/job/Cassandra-0.8/240/])
Use lazy initialization instead of class initialization in NodeId
patch by slebresne; reviewed by jbellis for CASSANDRA-2953
slebresne : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1151495
Files :
* /cassandra/branches/cassandra-0.8/CHANGES.txt
* /cassandra/branches/cassandra-0.8/src/java/org/apache/cassandra/utils/NodeId.java
> Use lazy initialization instead of class initialization in NodeId
> -----------------------------------------------------------------
>
> Key: CASSANDRA-2953
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2953
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.8.0
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Priority: Trivial
> Fix For: 0.8.3
>
> Attachments: 0001-Use-lazy-initialization-for-NodeId.patch
>
>
> The class initialization of NodeId triggers a read to a system table. When using the class introduced in CASSANDRA-2911, this happens to be triggered even though this is not necessary. This a a pain because when you use those classes, you don't have to have to set reasonable values for the data_dir and commitlog_dir in cassandra.yaml (it is a pain to have to have a cassandra.yaml in the classpath in the first place, but that's for another ticket).
> This ticket proposes using lazy initialization in NodeId to avoid that.
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