On 20/11/2020 15:43, Eric Robinson wrote:
>> From: Mark Thomas <ma...@apache.org>


<snip/>

>> This information might turn out to be unnecessary. I have been re-looking at
>> the previous logs and I think I have enough evidence to ID a root cause. I'll
>> email off-list as I need to quote logs to prove my point.
>>
> 
> I'll be watching my inbox like a hawk!

Sent.

For the curious, the analysis indicated either JVM code or a native
library was incorrectly closing the file descriptor associated with the
socket being used by an in progress HTTP request.

A second look at the strace file from yesterday provided hard evidence
of a native library mis-using file descriptors and strong circumstantial
evidence linking that same library to a specific instance of the
observed failure.

TL;DR, an issue in an external library, not a Tomcat issue.

Mark

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