[Spread-users] help with starting multiple instances of spread, please

[Dan Christians]

Hello,

I am new to using spread and could use your help.
I have read through the archives but did not find a discussion on
this topic exactly.

I would like to run multiple instances of spread on a single node to
simulate a multinode cluster.   We setup 3 aliases for the NIC, e.g.
eth1:0, eth1:1, and eth1:2 etc..  We are using spread version 4.01.00.

What I have done is created a config file for each spread using
a different port.   However, by doing this the spread processes do
not talk to each other.   We used spuser to join the same group but
each instance says its the only member.  If I specify the same port
I get an address already in use error from the second instance of
spread.   Here are the 3 config files I have for 3 spread instances:

$ cat spread_5819.conf
Spread_Segment 172.19.1.255:5819 {
   N172019001003    172.19.1.3 {
     172.19.1.3
   }
   N172019001004    172.19.1.4 {
     172.19.1.4
   }
   N172019001005    172.19.1.5 {
     172.19.1.5
   }
}
EventLogFile = /tmp/spread_5819.log
EventTimeStamp = "[%a %d %b %Y %H:%M:%S]"
DaemonUser = spread
DaemonGroup = spread
DebugFlags = { PRINT EXIT SESSION CONFIGURATION MEMBERSHIP GROUPS }

$ cat spread_5823.conf
Spread_Segment 172.19.1.255:5823 {
   N172019001003    172.19.1.3 {
     172.19.1.3
   }
   N172019001004    172.19.1.4 {
     172.19.1.4
   }
   N172019001005    172.19.1.5 {
     172.19.1.5
   }
}
EventLogFile = /tmp/spread_5823.log
EventTimeStamp = "[%a %d %b %Y %H:%M:%S]"
DaemonUser = spread
DaemonGroup = spread
DebugFlags = { PRINT EXIT SESSION CONFIGURATION MEMBERSHIP GROUPS }

$ cat spread_5826.conf
Spread_Segment 172.19.1.255:5826 {
   N172019001003    172.19.1.3 {
     172.19.1.3
   }
   N172019001004    172.19.1.4 {
     172.19.1.4
   }
   N172019001005    172.19.1.5 {
     172.19.1.5
   }
}
EventLogFile = /tmp/spread_5826.log
EventTimeStamp = "[%a %d %b %Y %H:%M:%S]"
DaemonUser = spread
DaemonGroup = spread
DebugFlags = { PRINT EXIT SESSION CONFIGURATION MEMBERSHIP GROUPS }


This is the ifconfig output:

eth1:0    Link encap:Ethernet  HWaddr 00:1B:78:BB:15:18
           inet addr:172.19.1.3  Bcast:172.19.255.255  Mask:255.255.0.0
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           Interrupt:177 Memory:fa000000-fa011100

eth1:1    Link encap:Ethernet  HWaddr 00:1B:78:BB:15:18
           inet addr:172.19.1.4  Bcast:172.19.255.255  Mask:255.255.0.0
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           Interrupt:177 Memory:fa000000-fa011100

eth1:2    Link encap:Ethernet  HWaddr 00:1B:78:BB:15:18
           inet addr:172.19.1.5  Bcast:172.19.255.255  Mask:255.255.0.0
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           Interrupt:177 Memory:fa000000-fa011100

And this is how I started the 3 spreads (as user spread):

  spread -n N172019001003 -c spread_5819.conf
  spread -n N172019001004 -c spread_5823.conf
  spread -n N172019001005 -c spread_5826.conf


I would really like to know if what I am trying to do is
possible and if so, what I am doing wrong.

Any help on this would be appreciated,

Thanks,

Dan