Sun Cluster 3.1 Release Notes

Path Timeouts When Using ce Adapters on the Private Interconnect (4746175)

Problem Summary: Clusters using ce adapters on the private interconnect may notice path timeouts and subsequent node panics if one or more cluster nodes have more than four processors.

Workaround: Set the ce_taskq_disable parameter in the ce driver by adding set ce:ce_taskq_disable=1 to /etc/system file on all cluster nodes and then rebooting the cluster nodes. This ensures that heartbeats (and other packets) are always delivered in the interrupt context, eliminating path timeouts and the subsequent node panics. Quorum considerations should be observed while rebooting cluster nodes.