[HDFS-15936] Solve BlockSender#sendPacket() does not record SocketTimeout exception

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.4.0, 3.3.2
• Fix Version/s: 3.4.0, 3.3.2
• Component/s: datanode
• Labels: pull-request-available
• Target Version/s: 3.4.0, 3.3.2
• Hadoop Flags: Reviewed
• Assignee: JiangHua Zhu
• Reporter: JiangHua Zhu
• Created: 30/Mar/21 06:21
• Updated: 11/Feb/24 09:14
• Resolved: 29/Jul/21 07:45

Description

In BlockSender#sendPacket(), if a SocketTimeout exception occurs, no information is recorded here.
try

{ ...... }

catch (IOException e) {
if (e instanceof SocketTimeoutException)

{ /* * writing to client timed out. This happens if the client reads * part of a block and then decides not to read the rest (but leaves * the socket open). * * Reporting of this case is done in DataXceiver#run */ }

}
No records are generated here, which is not conducive to troubleshooting.
We should add a line of warning type log.

Issue Links

• links to: GitHub Pull Request #2836