suyue created IOTDB-267:
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Summary: Reduce IO during the process of deserializing chunk header
Key: IOTDB-267
URL: https://issues.apache.org/jira/browse/IOTDB-267
Project: Apache IoTDB
Issue Type: Improvement
Reporter: suyue
When executing a query, IOTDB needs to read ChunkMetaData first and then use it
to read ChunkHeader and ChunkData. Currently, deserializing the chunk header
requires 2 disk read operations. One is reading chunkheader length, the other
is reading chunkheader content. So we considerate to reduce IO operations in
chunk header deserialization.
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