Matteo Merli created BOOKKEEPER-1068: ----------------------------------------
Summary: Expose ByteBuf in LedgerEntry to avoid data copy Key: BOOKKEEPER-1068 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-1068 Project: Bookkeeper Issue Type: Improvement Reporter: Matteo Merli Assignee: Matteo Merli Fix For: 4.5.0 To avoid copying the entries payloads when writing/reading on a ledger and having to allocate a lot of byte[] on the JVM heap, we need to accept Netty ByteBuf buffer. By passing a ByteBuf, an application can use a pooled buffer, pointing to direct memory, to the {{LedgerHandle.addEntry()}} and have the same buffer forwarded on the connection sockets to the bookies. The same thing on the read side, {{LedgerEntry}} exposes an additional {{getEntryBuffer()}} method that can be used to get the underlying buffer and possibly forward that to some other connection, with zero-copy behavior (excluding getting data in-out of the kernel). -- This message was sent by Atlassian JIRA (v6.3.15#6346)