[Spread-users] Multicast after dynamic configuration
John Robinson
jr at vertica.com
Thu Aug 21 23:47:47 EDT 2008
We noticed the same thing. I like your dummy idea.
/jr
---
Mike Nuss wrote:
> Hi,
>
>
>
> I’m trying to get dynamic configuration to work in Spread and I’ve run
> into some quirky behavior. The symptom is that if I have a single host
> listed in the configuration file, then add a new host, issue the reload
> command using spmonitor, and start Spread on the new host, the first
> host does not see any messages from the second host. If I then restart
> Spread on the first host, everything starts working properly.
>
>
>
> My suspicion (without looking at the code) is that Spread doesn’t listen
> on the multicast address (I’m using 239.255.0.1) if there is only a
> single entry in the config file. However, after the reload, it
> **should** start listening on that address, since there are now two
> entries. If it doesn’t, then it can’t communicate with the other host
> unless the daemon is restarted.
>
>
>
> To test this theory, I added a dummy entry to the original config file,
> so I’m now going from 2 to 3 daemons instead of from 1 to 2. The
> reconfiguration works flawlessly now. Is this just a coincidence, or is
> my suspicion correct? Is this a bug in Spread or is it expected behavior?
>
>
>
> Thanks,
>
> Mike
>
>
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