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https://issues.apache.org/jira/browse/IGNITE-11074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maxim Muzafarov updated IGNITE-11074:
-------------------------------------
    Description: 
While the demander node is in the partition file transmission state it must 
save all cache entries corresponding to the moving partition into a new 
temporary WAL storage. These entries will be applied later one by one on the 
received cache partition file. All asynchronous operations will be enrolled to 
the end of temporary WAL storage during storage reads until it becomes fully 
read. The file-based FIFO approach assumes to be used by this process.

The new write-ahead-log manager for writing temporary records must support to:
 * Unlimited number of wal-files to store temporary data records;
 * Iterating over stored data records during an asynchronous writer thread 
inserts new records;
 * WAL-per-partiton approach needs to be used;
 * Write operations to temporary WAL storage must have higher priority over 
reading operations;

  was:
While the demander node is in the partition file transmission state it must 
save all cache entries corresponding to the moving partition into a new 
temporary WAL storage. These entries will be applied later one by one on the 
received cache partition file. All asynchronous operations will be enrolled to 
the end of temporary WAL storage during storage reads until it becomes fully 
read. The file-based FIFO approach assumes to be used by this process.

The new write-ahead-log manager for writing temporary records must support to:

Unlimited number of wal-files to store temporary data records;
Iterating over stored data records during an asynchronous writer thread inserts 
new records;
WAL-per-partiton approach needs to be used;
Write operations to temporary WAL storage must have higher priority over 
reading operations;


> Implement catch-up temporary WAL
> --------------------------------
>
>                 Key: IGNITE-11074
>                 URL: https://issues.apache.org/jira/browse/IGNITE-11074
>             Project: Ignite
>          Issue Type: Sub-task
>            Reporter: Maxim Muzafarov
>            Assignee: Maxim Muzafarov
>            Priority: Major
>              Labels: iep-28
>
> While the demander node is in the partition file transmission state it must 
> save all cache entries corresponding to the moving partition into a new 
> temporary WAL storage. These entries will be applied later one by one on the 
> received cache partition file. All asynchronous operations will be enrolled 
> to the end of temporary WAL storage during storage reads until it becomes 
> fully read. The file-based FIFO approach assumes to be used by this process.
> The new write-ahead-log manager for writing temporary records must support to:
>  * Unlimited number of wal-files to store temporary data records;
>  * Iterating over stored data records during an asynchronous writer thread 
> inserts new records;
>  * WAL-per-partiton approach needs to be used;
>  * Write operations to temporary WAL storage must have higher priority over 
> reading operations;



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