On Sun, Mar 18, 2018 at 11:21 AM, Jean-Paul Calderone <exarkun@twistedmatrix.com> wrote:

On Sun, Mar 18, 2018 at 11:04 AM, Alex Railean <ralienpp@gmail.com> wrote:

Hello,

I have inherited a misbehaving system and am trying to troubleshoot it. The code
is not documented and I cannot produce a minimal working example that illustrates
the problem yet, as I don't know which parts are involved and how they relate. 

This produces the following entries in the log:
Unhandled error in Deferred:
CRITICAL _legacy       twcore Unhandled error in Deferred:

Traceback (most recent call last):
Failure: __builtin__.type: <class 'twisted.internet.error.TimeoutError'>
CRITICAL _legacy       twcore



How can I get more clues about what is going on? I was expecting a line number,
or a complete call-stack.

What are the recommended troubleshooting steps for finding the Deferred in which
the error occurred?  There are are around 30 of them throughout the code, is
there a heuristic I can use to narrow down the list of suspects?








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