Chen Luo created ASTERIXDB-2365:
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Summary: Various LSM IO Operations Shouldn't Simply Share the Same
Write Queue
Key: ASTERIXDB-2365
URL: https://issues.apache.org/jira/browse/ASTERIXDB-2365
Project: Apache AsterixDB
Issue Type: Improvement
Components: STO - Storage
Reporter: Chen Luo
Currently the BufferCache has a single writer queue for all write operations
(mainly for LSM component bulkloading). However, without a smart scheduling
algorithm, this causes unnecessary stalls for short duration operations (e.g.,
flush) if some heavy operation (e.g., large merge) is ongoing. It is necessary
to develop some sort of I/O scheduling algorithm to ensure short duration
operations are not blocked by those longer ones.
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