[Spread-users] Leader crashing often

Ed Holyat eholyat at olf.com
Fri Nov 2 10:46:25 EDT 2007

It is not necessarily the number of members in the group.  The crash is
related to the number of members * the size of the private names
associated with that group.  This can not exceed the vector space that
sends this information out which will hold maximum
100 ( num_elements ) * MAX_PACKET_SIZE

-----Original Message-----
From: Nico Meyer [mailto:nmeyer at virtualminds.de] 
Sent: Friday, November 02, 2007 10:31 AM
To: Ed Holyat
Cc: spread-users at lists.spread.org
Subject: Re: [Spread-users] Leader crashing often

But does this relate to the total number of members summed over all
groups, or 
only the number of groups a certain message is directed to? Because we
have a high number of clients which are in no group (aside from their
group of course), but we certainly have no group with 100 members.

On Friday 02 November 2007 15:13:30 Ed Holyat wrote:
> This seems to be related to the issue I am also experiencing.
> See subject RE: [Spread-users] To protect against SEGV in scatter on
> mailing list.
> I attached a fix, the fix truncates the member list when the number of
> elements is exceeded.
> I am waiting to find out what the side effects of truncating the
> list is.  The correct fix may be to send two messages so the member
> is not truncated.
> -----Original Message-----
> From: spread-users-bounces at lists.spread.org
> [mailto:spread-users-bounces at lists.spread.org] On Behalf Of Nico Meyer
> Sent: Friday, November 02, 2007 4:45 AM
> To: spread-users at lists.spread.org
> Subject: [Spread-users] Leader crashing often
> Hello,
> lately one of our spread daemons started to crash very often with the
> following log message:
> spread: message.c:398: Message_add_scat_element: Assertion
> `msg->num_elements
> 100' failed.
> The only thing special about this one daemon is that it normally is
> leader.
> Does anbody know, what can cause this?
> Thank you,
> Nico
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