[GitHub] merlimat opened a new pull request #3146: Use raw message when manually parsing messages from topic storage

[GitBox <gi...@apache.org>]

merlimat opened a new pull request #3146: Use raw message when manually parsing messages from topic storage
URL: https://github.com/apache/pulsar/pull/3146
 
 
   ### Motivation
   
   Use "raw" message interface when reading messages directly from storage.
   
   The regular `Message` interface exposes only a `byte[]` with the payload and it was meant to be simple. Eg. there is no ref-counting for messages. 
   
   When we are reading from storage directly, we need to take advantage that buffers are coming from direct memory and are already pooled. This will allow to avoid all memory copies and many objects allocation by exposing a lower level message interface, on which the users will need to explicitly call release.
   
   Note: this is a step-gap solution until we have more comprehensive and encapsulated API for direct storage access.

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