Steve Loughran created HADOOP-19567:
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             Summary: error stack traces printed on analytics stream factory 
close
                 Key: HADOOP-19567
                 URL: https://issues.apache.org/jira/browse/HADOOP-19567
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: fs/s3
    Affects Versions: 3.4.2
            Reporter: Steve Loughran


When you close an s3a filesystem just after initialisation -and before any file 
reads have taken place- there is a lot of ERROR level stack traces about a 
CancellationException -despite that being exactly what is wanted.

Core of it comes from netty.
{code}
        Suppressed: software.amazon.awssdk.core.exception.SdkClientException: 
Request attempt 1 failure: Unable to execute HTTP request: The connection was 
closed during the request. The request will usually succeed on a retry, but if 
it does not: consider disabling any proxies you have configured, enabling debug 
logging, or performing a TCP dump to identify the root cause. If this is a 
streaming operation, validate that data is being read or written in a timely 
manner. Channel Information: ChannelDiagnostics(channel=[id: 0x801baead, 
L:0.0.0.0/0.0.0.0:59534 ! 
R:bucket.vpce-0117f6033eaf7aee5-2hxd9fg4.s3.us-west-2.vpce.amazonaws.com/10.80.134.179:443],
 channelAge=PT0.676S, requestCount=1, responseCount=0, 
lastIdleDuration=PT0.006284125S)
Caused by: java.lang.IllegalStateException: executor not accepting a task
{code}




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