[HADOOP-15654] wasb client "java.lang.IllegalArgumentException: Self-suppression not permitted" in close()

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.2.0
• Component/s: fs/azure
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 07/Aug/18 00:27
• Updated: 07/Aug/18 00:29

Description

On a test on a network connection which is clearly overloaded (parallel D/L of hadoop 3.1 JARS, 8 test threads active), got an exception

[ERROR] testMetricsOnBigFileCreateRead(org.apache.hadoop.fs.azure.metrics.ITestAzureFileSystemInstrumentation)  Time elapsed: 71.585 s  <<< ERROR! java.lang.IllegalArgumentException: Self-suppression not permitted
	at java.lang.Throwable.addSuppressed(Throwable.java:1043)
	at java.io.FilterOutputStream.close(FilterOutputStream.java:159)
	at org.apache.hadoop.fs.azure.NativeAzureFileSystem$NativeAzureFsOutputStream.close(NativeAzureFileSystem.java:1058)

This seems to imply that an exception was called with initcause==self. I don't see how the codepath would permit that though