Reference

Cluster::CCS(3pm)

Perl wrapper for the Cluster Configuration Service library

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 <[email protected]>

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