[HDFS-14473] BlockReceiver.receiveBlock() throws an IOException when interrupted

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: Haicheng Chen
• Created: 06/May/19 14:28
• Updated: 29/May/19 18:08
• Resolved: 29/May/19 18:08

Description

Dear HDFS developers, we are developing a tool to detect exception-related bugs in Java. Our prototype has spotted the following throw statement whose exception class and error message indicate different error conditions.

 

Version: Hadoop-3.1.2

File: HADOOP-ROOT/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java

Line: 1070

throw new IOException("Interrupted receiveBlock");

 

An IOException can mean many different errors, while the error message indicates that receiveBlock() is interrupted. This mismatch could be a problem. For example, the callers trying to handle other IOException may accidentally (and incorrectly) handle the interrupt. An InterruptedIOException may be better here.