Maxim Muzafarov created IGNITE-11074:
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             Summary: 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


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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