[Pacemaker] Failed to connection to the cluster

[龙龙]

Hi,
Now,I have installed pacemaker on two nodes(node4 and node2),they works
fine.Then,I installed pacemaker on another node(7)---with the same
configure file.But when I use crm_mon to watch the cluster status,it
returns me "Attempting connection to the
cluster....................................................."
Now I watch the cluster status via node4 ,it returns me
"Reconnecting...root at node4:~# crm_mon

============
Last updated: Mon Sep 24 23:24:50 2012
Last change: Sun Sep 23 21:40:48 2012 via crmd on node2
Stack: openais
Current DC: node4 - partition WITHOUT quorum
Version: 1.1.6-9971ebba4494012a93c03b40a2c58ec0eb60f50c
2 Nodes configured, 3 expected votes
0 Resources configured.
============

Online: [ node4 ]
OFFLINE: [ node2 ]"


And here is the log file of node7:/var/log/corosync/corosync.log
Sep 24 23:17:41 corosync [MAIN  ] Corosync Cluster Engine ('1.4.2'):
started and ready to provide service.
Sep 24 23:17:41 corosync [MAIN  ] Corosync built-in features: nss
Sep 24 23:17:41 corosync [MAIN  ] Successfully read main configuration file
'/etc/corosync/corosync.conf'.
Sep 24 23:17:41 corosync [TOTEM ] Token Timeout (5000 ms) retransmit
timeout (247 ms)
Sep 24 23:17:41 corosync [TOTEM ] token hold (187 ms) retransmits before
loss (20 retrans)
Sep 24 23:17:41 corosync [TOTEM ] join (1000 ms) send_join (0 ms) consensus
(7500 ms) merge (200 ms)
Sep 24 23:17:41 corosync [TOTEM ] downcheck (1000 ms) fail to recv const
(2500 msgs)
Sep 24 23:17:41 corosync [TOTEM ] seqno unchanged const (30 rotations)
Maximum network MTU 1402
Sep 24 23:17:41 corosync [TOTEM ] window size per rotation (50 messages)
maximum messages per rotation (20 messages)
Sep 24 23:17:41 corosync [TOTEM ] missed count const (5 messages)
Sep 24 23:17:41 corosync [TOTEM ] send threads (0 threads)
Sep 24 23:17:41 corosync [TOTEM ] RRP token expired timeout (247 ms)
Sep 24 23:17:41 corosync [TOTEM ] RRP token problem counter (2000 ms)
Sep 24 23:17:41 corosync [TOTEM ] RRP threshold (10 problem count)
Sep 24 23:17:41 corosync [TOTEM ] RRP multicast threshold (100 problem
count)
Sep 24 23:17:41 corosync [TOTEM ] RRP automatic recovery check timeout
(1000 ms)
Sep 24 23:17:41 corosync [TOTEM ] RRP mode set to none.
Sep 24 23:17:41 corosync [TOTEM ] heartbeat_failures_allowed (0)
Sep 24 23:17:41 corosync [TOTEM ] max_network_delay (50 ms)
Sep 24 23:17:41 corosync [TOTEM ] HeartBeat is Disabled. To enable set
heartbeat_failures_allowed > 0
Sep 24 23:17:41 corosync [TOTEM ] Initializing transport (UDP/IP Multicast).
Sep 24 23:17:41 corosync [TOTEM ] Initializing transmit/receive security:
libtomcrypt SOBER128/SHA1HMAC (mode 0).
Sep 24 23:17:41 corosync [IPC   ] you are using ipc api v2
Set r/w permissions for uid=0, gid=0 on /var/log/corosync/corosync.log
Sep 24 23:17:41 corosync [TOTEM ] Receive multicast socket recv buffer size
(262142 bytes).
Sep 24 23:17:41 corosync [TOTEM ] Transmit multicast socket send buffer
size (262142 bytes).
Sep 24 23:17:41 corosync [TOTEM ] The network interface [192.168.1.17] is
now up.
Sep 24 23:17:41 corosync [TOTEM ] Created or loaded sequence id
10968.192.168.1.17 for this ring.
Sep 24 23:17:41 corosync [pcmk  ] debug: pcmk_user_lookup: Cluster user
root has uid=0 gid=0
Sep 24 23:17:41 corosync [pcmk  ] info: process_ais_conf: Reading configure
Sep 24 23:17:41 corosync [pcmk  ] info: config_find_init: Local handle:
4730966301143465987 for logging
Sep 24 23:17:41 corosync [pcmk  ] info: config_find_next: Processing
additional logging options...
Sep 24 23:17:41 corosync [pcmk  ] info: get_config_opt: Found 'on' for
option: debug

I need your help,thank you!!
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