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From "Paul Joseph Davis (JIRA)" <>
Subject [jira] Resolved: (COUCHDB-20) Output from update listener causes error messages/db server crash
Date Sun, 02 Aug 2009 08:08:14 GMT


Paul Joseph Davis resolved COUCHDB-20.

       Resolution: Won't Fix
    Fix Version/s:     (was: 1.0)
         Assignee: Paul Joseph Davis

Ignoring this for now because fixing would require quite a bit of effort given the way things
are written. Plus as we're we may be dropping external listening to update notifications the
whole problem might disappear anyway.

> Output from update listener causes error messages/db server crash
> -----------------------------------------------------------------
>                 Key: COUCHDB-20
>                 URL:
>             Project: CouchDB
>          Issue Type: Bug
>            Reporter: Noah Slater
>            Assignee: Paul Joseph Davis
>            Priority: Minor
>             Fix For: 0.10
> What steps will reproduce the problem?
> 1. Write a program/script that continuously reads its stdin and writes 
> something to stdout as stdin line has arrived
> 2. Register it as a db update listener in couch.ini
> [Couch]
> ...
> DbUpdateNotificationProcess=/path/to/daemon
> 3. Start couchdb. Each time db is updated, the listener program receives 
> input and writes back to stdout.
> This causes long and obscure error messages in couchdb server concole 
> output (not showed here). According to [1], listener is not supposed to 
> send anything back.
> It is therefore proposed that whatever is received from the listener is 
> merely logged in special log file e. g. notifier_log (which may be 
> redirected to /dev/null in couch.ini if not needed).
> [1] 
> b/7285fb233fa10368#7285fb233fa10368

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