[ 
https://issues.apache.org/jira/browse/CASSANDRA-5397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13622618#comment-13622618
 ] 

Jonathan Ellis commented on CASSANDRA-5397:
-------------------------------------------

Odd, I'm seeing the following with v4:

{noformat}
formite:git johnathanellis$ patch -p1 < ~/.JIRAClient/download/5397-1.2-v4.txt 
patching file src/java/org/apache/cassandra/db/AtomicSortedColumns.java
patching file src/java/org/apache/cassandra/db/index/SecondaryIndexManager.java
patch: **** malformed patch at line 159: diff --git 
a/test/unit/org/apache/cassandra/SchemaLoader.java 
b/test/unit/org/apache/cassandra/SchemaLoader.java
{noformat}

I committed what I think is the same code based on v3, please doublecheck it.
                
> Updates to PerRowSecondaryIndex don't use most current values 
> --------------------------------------------------------------
>
>                 Key: CASSANDRA-5397
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5397
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 1.2.3
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>            Priority: Minor
>         Attachments: 5397_12.txt, 5397-1.2-v3.txt, 5397-1.2-v4.txt, 
> 5397_trunk.txt, 5397.txt
>
>
> The way that updates to secondary indexes are performed using  
> SecondaryIndexManager.Updater is flawed for PerRowSecondaryIndexes.  Unlike 
> PerColumnSecondaryIndexes, which only require the old & new values for a 
> single column,  the expectation is that a PerRow indexer can be given just a 
> key which it will use to retrieve the entire row (or as many columns as it 
> requires) and perform its indexing on those columns.  As the indexes are 
> updated before the memtable atomic swap occurs, a per-row indexer may only 
> read the previous values for the row, not the new ones that are being 
> written. In the case of an insert, there is no previous value and so nothing 
> is added to the index.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Reply via email to