feat: limit multiple threads fetch the same block simultaneous #1190
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jiacai2050
reviewed
Sep 6, 2023
jiacai2050
reviewed
Sep 7, 2023
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Rationale
The current disk cache may encounter the following scenario: Multiple threads taking the same block from object_store at the same time, To avoid this problem, we maintain a pull queue for each block, so that only one thread will pull the same block at the same time.
Detailed Changes
Test Plan
Add new UT
test_disk_cache_multi_thread_fetch_same_block