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* '''What’s the best way for an application to determine the name/slot of the currently active controller in the cluster?''' | * '''What’s the best way for an application to determine the name/slot of the currently active controller in the cluster?''' | ||
| − | : The relevant API is " | + | : The relevant API is "clCpmMasterAddressGet". Example code (which also converts the node's address into its name) is as follows: |
<pre> | <pre> | ||
#include <clCpmExtApi.h> | #include <clCpmExtApi.h> | ||
Revision as of 01:14, 14 June 2011
High Availability (AMF)
Overview
OpenClovis ASP provides a SA-Forum compliant High Availability solution (the AMF in SAF terminology). This component controls the starting/stopping of applications, application redundancy configuration, and role assignment.
FAQ
- What’s the best way for an application to determine the name/slot of the currently active controller in the cluster?
- The relevant API is "clCpmMasterAddressGet". Example code (which also converts the node's address into its name) is as follows:
#include <clCpmExtApi.h>
ClRcT masterNodeGet(void)
{
ClIocNodeAddressT node = 0;
ClRcT rc = clCpmMasterAddressGet(&node);
if(node)
{
ClCpmSlotInfoT slotInfo = {.slotId = node } ;
rc = clCpmSlotGet(CL_CPM_SLOT_ID, &slotInfo);
if(rc == CL_OK)
clLogNotice("MASTER", "GET", " Currently active controller node name is [%.*s]",
slotInfo.nodeName.length, slotInfo.nodeName.value);
}
return rc;
}