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From "Denis Magda (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-2310) Lock cache partition for affinityRun/affinityCall execution
Date Thu, 12 May 2016 09:13:12 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-2310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Denis Magda updated IGNITE-2310:
--------------------------------
    Fix Version/s:     (was: 1.6)
                   1.7

> Lock cache partition for affinityRun/affinityCall execution
> -----------------------------------------------------------
>
>                 Key: IGNITE-2310
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2310
>             Project: Ignite
>          Issue Type: New Feature
>          Components: cache
>            Reporter: Valentin Kulichenko
>            Assignee: Andrey Gura
>            Priority: Critical
>              Labels: community
>             Fix For: 1.7
>
>
> Partition of a key passed to {{affinityRun}} must be located on the affinity node when
a compute job is being sent to the node. The partition has to be locked on the cache until
the compute job is being executed. This will let to execute queries safely (Scan or local
SQL) over the data that is located locally in the locked partition.
> In addition Ignite Compute API has to be extended by adding {{affinityCall}} and {{affinityRun}}
methods that accept list of caches which partitions have to be locked at the time a compute
task is being executed.
> Test cases to validate the functionality:
> 1) local SQL query over data located in a concrete partition in multple caches.
> - create cache Organisation cache and create Persons cache.
> - collocate Persons by 'organisationID';
> - send {{affinityRun}} using 'organisationID' as an affinity key and passing Organisation
and Persons caches' names to the method to be sure that the partition will be locked on caches;
> - execute local SQL query "SELECT * FROM Persons as p, Organisation as o WHERE p.orgId=o.id'
on a changing topology. The result set must be complete, the partition over which the query
will be executed mustn't be moved to the other node. Due to affinity collocation the partition
number will be the same for all Persons that belong to particular 'organisationID'
> 2) Scan Query over particular partition that is locked when {{affinityCall}} is executed.
 



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