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Cluster::CCS.3pm

NAME

Cluster::CCS - Perl wrapper for the Cluster Configuration Service library

SYNOPSIS

   use Cluster::CCS;
 
   my $ccs = new Cluster::CCS();
 
   $ccs->fullxpath(1);
 
   my $ccshandle = $ccs->connect();
 
   if ($ccshandle < 1) {
     print "Cannot comunicate with libccs\n";
     exit $ccshandle;
   }
 
   my $rtn;
   my $err;
 
   $err = $ccs->get($ccshandle, '/cluster/@name', $rtn);
 
   if ($err != 0) {
     print "Query is not valid\n";
   }
 
   print "My Cluster name is $rtn\n";
 
   $err = $ccs->disconnect($ccshandle);
 
   if ($err != 0) {
     print "Problems disconnecting from libccs\n";
   }
 
   exit $err;
 
 

DESCRIPTION

   Cluster::CCS provides a perl XS wrapper for libccs.
 
 

METHODS

new

   Creates a new Cluster::CCS object.
 
 

fullxpath(value)

   Enable or disable full xpath queries. Set 1 to enable, 0 to disable.
   This has to be set before connect() or force_connect.
   In order to change this value, a disconnect operation is required.
 
 

connect(void)

   Initialize the connection to libccs/libconfdb/corosync objdb.
   Returns 1 on success or negative on failure.
 
 

force_connect(cluster_name, blocking)

   Initialize the connection to libccs/libconfdb/corosync objdb.
   If blocking is set, it will retry the operation until it succeed.
   Returns 1 on success or negative on failure.
 
 

disconnect(desc)

   Disconnect and free resources allocated during opertaion.
   Returns 0 on success.
 
 

get(desc, query, rtn)

   Perform a simple xpath query.
   Returns 0 on success, negative otherwise. On success rtn will contain the
   requested data.
 
 

get_list(desc, query, rtn)

   Perform a simple xpath query and retain some data to iterate over a list of
   results.
   Returns 0 on success, negative otherwise. On success rtn will contain the
   requested data.
 
 

set(desc, path, val)

   This operation is not yet implemented in libccs.
 
 

lookup_nodename(desc, nodename, rtn)

   Perform a nodename lookup using several methods.
   Return 0 on success and rtn will contain the requested data.
 
 

EXPORTS

Nothing is exported by default.

BUGS

   https://bugzilla.redhat.com/
 
 

SEE ALSO

   cluster.conf(5), ccs(7), ccs_tool(8)
 
 

AUTHOR

Fabio M. Di Nitto <fdinitto@redhat.com>