Hello,
Is there any way to get openais/corosync working on Amazon EC2? Multicast is
not permitted there...
What I'd like to set up is a two node cluster.
My current attempt to get this working is to set up vtun tunnels between the
two nodes. vtun is supposed to be able to tunnel multicast.
The two nodes have 192.168.1.1 and 192.168.1.2 on their tun0 interfaces
respectively, and I'm able to pass traffic through the tunnel.
This is failing right now because totem won't bind to the tun0 address.
On the first node I tried setting bindnetaddr to 192.168.1.0 and
192.168.1.1. In both cases debugging indicates 'network interface is down'
and totem binding to 127.0.0.1.
Strangely enough when I configure it to bind on 192.168.1.2 it does bind,
but obviously that's wrong and doesn't work.
The OS is Ubuntu hardy heron. I tried the openais out of the heron repo
(0.82-3ubuntu2), and built corosync from the karmic source repo
(1.0.0-5ubuntu1).
Both behave the same way.
Any pointers?
# ifconfig tun0
tun0 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:192.168.1.1 P-t-P:192.168.1.2 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1450 Metric:1
RX packets:11 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:924 (924.0 B) TX bytes:924 (924.0 B)
# egrep -v '#|^$' /etc/corosync/corosync.conf
totem {
version: 2
token: 3000
token_retransmits_before_loss_const: 10
join: 60
consensus: 1500
vsftype: none
max_messages: 20
clear_node_high_bit: yes
secauth: off
threads: 0
rrp_mode: none
interface {
ringnumber: 0
bindnetaddr: 192.168.1.0
mcastaddr: 226.94.1.1
mcastport: 5405
}
}
amf {
mode: disabled
}
service {
ver: 0
name: pacemaker
}
aisexec {
user: root
group: root
}
logging {
fileline: off
to_stderr: yes
to_logfile: no
to_syslog: yes
syslog_facility: daemon
debug: on
timestamp: on
logger_subsys {
subsys: AMF
debug: on
tags: enter|leave|trace1|trace2|trace3|trace4|trace6
}
}
# corosync -f
Dec 13 12:00:06 corosync [MAIN ] Corosync Cluster Engine ('trunk'): started
and ready to provide service.
Dec 13 12:00:06 corosync [MAIN ] Successfully read main configuration file
'/etc/corosync/corosync.conf'.
Dec 13 12:00:06 corosync [TOTEM ] Token Timeout (3000 ms) retransmit timeout
(294 ms)
Dec 13 12:00:06 corosync [TOTEM ] token hold (225 ms) retransmits before
loss (10 retrans)
Dec 13 12:00:06 corosync [TOTEM ] join (60 ms) send_join (0 ms) consensus
(1500 ms) merge (200 ms)
Dec 13 12:00:06 corosync [TOTEM ] downcheck (1000 ms) fail to recv const (50
msgs)
Dec 13 12:00:06 corosync [TOTEM ] seqno unchanged const (30 rotations)
Maximum network MTU 1500
Dec 13 12:00:06 corosync [TOTEM ] window size per rotation (50 messages)
maximum messages per rotation (20 messages)
Dec 13 12:00:06 corosync [TOTEM ] send threads (0 threads)
Dec 13 12:00:06 corosync [TOTEM ] RRP token expired timeout (294 ms)
Dec 13 12:00:06 corosync [TOTEM ] RRP token problem counter (2000 ms)
Dec 13 12:00:06 corosync [TOTEM ] RRP threshold (10 problem count)
Dec 13 12:00:06 corosync [TOTEM ] RRP mode set to none.
Dec 13 12:00:06 corosync [TOTEM ] heartbeat_failures_allowed (0)
Dec 13 12:00:06 corosync [TOTEM ] max_network_delay (50 ms)
Dec 13 12:00:06 corosync [TOTEM ] HeartBeat is Disabled. To enable set
heartbeat_failures_allowed > 0
Dec 13 12:00:06 corosync [TOTEM ] Initializing transmit/receive security:
libtomcrypt SOBER128/SHA1HMAC (mode 0).
Dec 13 12:00:06 corosync [TOTEM ] Receive multicast socket recv buffer size
(288000 bytes).
Dec 13 12:00:06 corosync [TOTEM ] Transmit multicast socket send buffer size
(262142 bytes).
Dec 13 12:00:06 corosync [TOTEM ] The network interface is down.
Dec 13 12:00:06 corosync [TOTEM ] Created or loaded sequence id 20.127.0.0.1
for this ring.
Dec 13 12:00:06 corosync [TOTEM ] entering GATHER state from 15.
Dec 13 12:00:06 corosync [SERV ] Service failed to load 'pacemaker'.
Dec 13 12:00:06 corosync [SERV ] Service initialized 'corosync extended
virtual synchrony service'
Dec 13 12:00:06 corosync [SERV ] Service initialized 'corosync
configuration service'
Dec 13 12:00:06 corosync [SERV ] Service initialized 'corosync cluster
closed process group service v1.01'
Dec 13 12:00:06 corosync [SERV ] Service initialized 'corosync cluster
config database access v1.01'
Dec 13 12:00:06 corosync [SERV ] Service initialized 'corosync profile
loading service'
Dec 13 12:00:06 corosync [MAIN ] Compatibility mode set to whitetank.
Using V1 and V2 of the synchronization engine.
Dec 13 12:00:06 corosync [TOTEM ] Creating commit token because I am the
rep.
Dec 13 12:00:06 corosync [TOTEM ] Saving state aru 0 high seq received 0
Dec 13 12:00:06 corosync [TOTEM ] Storing new sequence id for ring 18
Dec 13 12:00:06 corosync [TOTEM ] entering COMMIT state.
Dec 13 12:00:06 corosync [TOTEM ] got commit token
Dec 13 12:00:06 corosync [TOTEM ] entering RECOVERY state.
Dec 13 12:00:06 corosync [TOTEM ] position [0] member 127.0.0.1:
Dec 13 12:00:06 corosync [TOTEM ] previous ring seq 20 rep 127.0.0.1
Dec 13 12:00:06 corosync [TOTEM ] aru 0 high delivered 0 received flag 1
Dec 13 12:00:06 corosync [TOTEM ] Did not need to originate any messages in
recovery.
Dec 13 12:00:06 corosync [TOTEM ] got commit token
Dec 13 12:00:06 corosync [TOTEM ] Sending initial ORF token
Dec 13 12:00:06 corosync [TOTEM ] token retrans flag is 0 my set retrans
flag0 retrans queue empty 1 count 0, aru 0
--
Robert Borkowski
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