[SPARK-24107] ChunkedByteBuffer.writeFully method has not reset the limit value

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.3.1, 2.4.0
• Component/s: Block Manager, Input/Output, Spark Core
• Labels: correctness
• Assignee: jinhai
• Reporter: jinhai
• Created: 27/Apr/18 03:03
• Updated: 17/May/20 18:21
• Resolved: 02/May/18 14:52

Description

ChunkedByteBuffer.writeFully method has not reset the limit value. When
chunks larger than bufferWriteChunkSize, such as 80*1024*1024 larger than
config.BUFFER_WRITE_CHUNK_SIZE(64 * 1024 * 1024)，only while once, will lost 16*1024*1024 byte

Issue Links

• is caused by: SPARK-21527 Use buffer limit in order to take advantage of JAVA NIO Util's buffercache
• links to: [Github] Pull Request #21175 (manbuyun)
• links to: [Github] Pull Request #21327 (cloud-fan)