incubator-couchdb-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Nicolas Maupu (JIRA)" <j...@apache.org>
Subject [jira] Created: (COUCHDB-1052) CouchDB crashes by Erlang Heartbeat Runtime System
Date Tue, 01 Feb 2011 17:16:29 GMT
CouchDB crashes by Erlang Heartbeat Runtime System
--------------------------------------------------

                 Key: COUCHDB-1052
                 URL: https://issues.apache.org/jira/browse/COUCHDB-1052
             Project: CouchDB
          Issue Type: Improvement
          Components: Infrastructure
    Affects Versions: 1.0.1, 0.10.1
         Environment: Solaris 10
            Reporter: Nicolas Maupu


Hello,

We have several couchdb in our production environment (starting from 0.10.1 and upgraded to
1.0.1). Some instances began to crash several times a day.
After research (I am not aware of all erlang tips and tricks), I found that the problem was
caused by erlang heartbeat runtime system (http://www.erlang.org/doc/man/heart.html).
For some reasons (it seems to be a problem with system clock), this heartbeat process sends
a signal to main erlang process to trigger HEARTBEAT_COMMAND. 
The command configured by couchdb startup script is to call 'bin/couchdb -k' which kill server
...

I don't know if this is wanted or not but is Erlang heartbeat system provided to restart a
service if this one crash ?

I patched mine to restart process gracefully but I would like to know if this is a feature
or a bug : next time I upgrade, I will have to patch again.
My patch is a little bit specific to my architecture so I did not provide it. Ask me if you
are interested.

nm.

-- 
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message