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From "Davide Giannella (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (OAK-4032) Performance issues on Oracle after introducing bulk updates
Date Thu, 10 Mar 2016 11:20:41 GMT

     [ https://issues.apache.org/jira/browse/OAK-4032?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davide Giannella closed OAK-4032.
---------------------------------

Bulk close for 1.4.0

> Performance issues on Oracle after introducing bulk updates
> -----------------------------------------------------------
>
>                 Key: OAK-4032
>                 URL: https://issues.apache.org/jira/browse/OAK-4032
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: rdbmk
>            Reporter: Tomek Rękawek
>            Priority: Critical
>             Fix For: 1.4, 1.4.0
>
>
> OAK-2066 introduces bulk updates support for Mongo and RDB document stores. New feature
is used in the {{Commit}} class to improve the performance. Due to bug OAK-3938, batch updates
have been disabled for the Oracle DB - as a result, the bulk {{createOrUpdate()}} method applies
changes sequentially on Oracle.
> However, after the OAK-3724, the Commit class sends all inserts using the new {{createOrUpdate()}}
(rather than bulk {{create()}}, as it used to do). As a result, Oracle doesn't use bulk INSERTs
anymore.
> Possible solutions:
> * check if OAK-4027 makes the new createOrUpdate() works on the Oracle. If so, require
the new Oracle JDBC driver in the RDBDocumentStore.
> * improve the fallback createOrUpdate() to insert documents in bulk and update them sequentially.



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