You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hbase.apache.org by "chenxu (Jira)" <ji...@apache.org> on 2019/10/02 01:46:00 UTC
[jira] [Created] (HBASE-23107) Avoid temp byte array creation when
doing cacheDataOnWrite
chenxu created HBASE-23107:
------------------------------
Summary: Avoid temp byte array creation when doing cacheDataOnWrite
Key: HBASE-23107
URL: https://issues.apache.org/jira/browse/HBASE-23107
Project: HBase
Issue Type: Improvement
Reporter: chenxu
Assignee: chenxu
code in HFileBlock.Writer.cloneUncompressedBufferWithHeader
{code:java}
ByteBuffer cloneUncompressedBufferWithHeader() {
expectState(State.BLOCK_READY);
byte[] uncompressedBlockBytesWithHeader = baosInMemory.toByteArray();
…
}
{code}
When cacheOnWrite feature enabled, a temp byte array was created in order to copy block’s data, we can avoid this by use of ByteBuffAllocator. This can improve GC performance in write heavy scenarios.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)