don't make log noise when an OS process chooses to terminate normally
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Key: COUCHDB-588
URL: https://issues.apache.org/jira/browse/COUCHDB-588
Project: CouchDB
Issue Type: Improvement
Reporter: Mark Hammond
Assignee: Adam Kocoloski
Priority: Minor
Fix For: 0.11
Attachments: bug-588.patch
If an "os process" itself chooses to terminate normally (ie, with an exit code
of zero), couchdb logs a fair bit of noise, including a stack-trace. This
noise can cause well-meaning users to report a bug when infact the exit was
expected. This is particularly useful for "externals" - if the implementation
of the external changes, it can decide to terminate normally so the next
request causes the new implementation to be picked up.
The attached patch causes an OS process terminating with a non-zero exit code
to be treated as before (ie, lots of log information written) while an exit
code of zero emits a couple of "info" records about the termination with no
stack-traces etc.
Assigning to Adam for review - please assign back if it looks OK and I'll check
it in (and thanks for your pointers - they helped immensely)
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