06-09-2013
It feels like the synchronization was performed - "forced". As Bakunin mentions, it is most likely a communication problem.
Basic test - start all nodes but do not start a resource groups. I suspect you will not be able to start all nodes.
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LEARN ABOUT CENTOS
ucmatose
UCMATOSE(1) librdmacm UCMATOSE(1)
NAME
ucmatose - RDMA CM connection and simple ping-pong test.
SYNOPSIS
ucmatose [-s server_address] [-b bind_address] [-c connections]
[-C message_count] [-S message_size]
ucmatose -s server_address [-b bind_address] [-c connections]
[-C message_count] [-S message_size] [-t tos]
DESCRIPTION
Establishes a set of reliable RDMA connections between two nodes using the librdmacm, optionally transfers data between the nodes, then
disconnects.
OPTIONS
-s server_address
The network name or IP address of the server system listening for connections. The used name or address must route over an RDMA
device. This option must be specified by the client.
-b bind_address
The local network address to bind to.
-c connections
The number of connections to establish between the client and server. (default 1)
-C message_count
The number of messages to transfer over each connection. (default 10)
-S message_size
The size of each message transferred, in bytes. (default 100)
-t tos Indicates the type of service used for the communication. Type of service is implementation dependent based on subnet configura-
tion.
-m Tests event channel migration. Migrates all communication identifiers to a different event channel for disconnect events.
NOTES
Basic usage is to start ucmatose on a server system, then run ucmatose -s server_name on a client system.
Because this test maps RDMA resources to userspace, users must ensure that they have available system resources and permissions. See the
libibverbs README file for additional details.
SEE ALSO
rdma_cm(7), udaddy(1), mckey(1), rping(1)
librdmacm 2007-05-15 UCMATOSE(1)