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From "T Jake Luciani (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-11046) Existing indexes are always rebuilt on upgrade to 3.0
Date Mon, 25 Jan 2016 16:59:39 GMT


T Jake Luciani commented on CASSANDRA-11046:


> Existing indexes are always rebuilt on upgrade to 3.0
> -----------------------------------------------------
>                 Key: CASSANDRA-11046
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Distributed Metadata
>            Reporter: Sam Tunnicliffe
>            Assignee: Sam Tunnicliffe
>            Priority: Critical
>             Fix For: 3.0.x, 3.x
> CASSANDRA-10127 made the naming of secondary indexes consistent internally. Previously
some places used just the index name, whilst others required the name in the format {{table.index}}.

> One place including the additional table name was the {{system.IndexInfo}} table, which
records whether or not the index has been built. On upgrade to 3.0, as the node restarts and
initialises and index, it checks this table to determine whether an initial build task is
necessary. Since 10127, this check expects the row to include just the index name, but the
actual row will still be in the old {{table.index}} format, causing the index manager to assume
the index is not built and submit a build task. 

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