Xiao Chen created HDFS-9590:
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Summary: NPE in Storage#unlock
Key: HDFS-9590
URL: https://issues.apache.org/jira/browse/HDFS-9590
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Xiao Chen
Assignee: Xiao Chen
The code looks to be possible to have race conditions in multiple-threaded runs.
{code}
public void unlock() throws IOException {
if (this.lock == null)
return;
this.lock.release();
lock.channel().close();
lock = null;
}
{code}
This is called in a handful of places, and I don't see any protection. Shall we
add some synchronization mechanism? Not sure if I missed any design assumptions
here.
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