[jira] [Updated] (CASSANDRA-10604) Secondary index metadata is not reloaded when table is altered

["Sam Tunnicliffe (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-10604?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sam Tunnicliffe updated CASSANDRA-10604:
----------------------------------------
    Reviewer: Tyler Hobbs

> Secondary index metadata is not reloaded when table is altered
> --------------------------------------------------------------
>
>                 Key: CASSANDRA-10604
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10604
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Tyler Hobbs
>            Assignee: Sam Tunnicliffe
>             Fix For: 3.x
>
>
> The javadocs for {{Index.getMetadataReloadTask()}} state the following:
> {quote}
> Returns a task to reload the internal metadata of an index.
> Called when the base table metadata is modified or when the configuration of the Index is updated.
> {quote}
> However, altering a table does not result in the reload task being executed.  I think the root of the problem is that in {{SecondaryIndexManager.reloadIndex()}}, we only execute the reload task when the old {{IndexMetadata}} does not equal the current {{IndexMetadata}}.  Altering the table does not change the index metadata, so this check always fails.
> This especially affects per-row secondary indexes, where the index may need to handle columns being added or dropped.



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