[jira] [Updated] (HDDS-10283) Apply Zero-Copy when Ozone client reads chunks

["Duong (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-10283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duong updated HDDS-10283:
-------------------------
    Component/s: Ozone Client

> Apply Zero-Copy when Ozone client reads chunks
> ----------------------------------------------
>
>                 Key: HDDS-10283
>                 URL: https://issues.apache.org/jira/browse/HDDS-10283
>             Project: Apache Ozone
>          Issue Type: Bug
>          Components: Ozone Client
>            Reporter: Duong
>            Priority: Major
>
> Ozone client, or ChunkInputStream, reads chunks via grpc call. The chunk data is included in the `ReadChunkResponseProto` serialized by GRPC. By default, GRPC serializes bytes data by copying the data it receives from network (in the native memory zone) to heap buffers (LiteralByteString). The ChunkInputStream uses these buffers to back the read.
> We can apply zero-copy marshaller (ZeroCopyMessageMarshaller) to client reads to instruct GRPC to serialize chunks by wrapping the direct buffers of data received from the network. This will eliminate the need to allocate extra heap buffers when reading data.
>  
>  



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