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Posted to dev@ignite.apache.org by "Sergey Chugunov (Jira)" <ji...@apache.org> on 2020/06/26 14:45:00 UTC

[jira] [Created] (IGNITE-13190) Core defragmentation functions

Sergey Chugunov created IGNITE-13190:
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             Summary: Core defragmentation functions
                 Key: IGNITE-13190
                 URL: https://issues.apache.org/jira/browse/IGNITE-13190
             Project: Ignite
          Issue Type: Sub-task
            Reporter: Sergey Chugunov


The following set of functions covering defragmentation happy-case needed:
 * Initialization of defragmentation manager when node is started in maintenance mode.
 * Information about partition files is gathered by defrag mgr.
 * For each partition file corresponding file of defragmented partition is created and initialized.
 * Keys are transferred from old partitions to new partitions.
 * Checkpointer is aware of new partition files and flushes defragmented memory to new partition files.

 

No fault-tolerance code nor index defragmentation mappings are needed in this task.



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