Fixing of hanging after "exit" in process which is linked to handler … #3
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…process
Problem statement:
Request handler start linked process, which is finishing with exit(Reason).
In such case the `info` function clause for error handling will never be called
and default clause will be called instead. This causes hanging of cowboy.
The typical situation is starting gen_server from request handler.
If gen_server returns {stop, Reason} after error in initialisation
then otp calls `exit(Reason)` internally.
The solution:
New `info` clause for error without stacktrace.
motobob
approved these changes
Dec 27, 2017
|
let's review other alternatives before we merge |
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Problem statement:
Request handler start linked process, which is finishing with
exit(Reason).In such case the function clause for error handling will never be called and default clause will be called instead. This causes hanging of cowboy.The typical situation is starting
gen_serverfrom request handler. Ifgen_serverreturns{stop, Reason}after error in initialisation thenotpcallsexit(Reason)internally.The solution:
New
infoclause for error without stacktrace.@motobob please, take a look.