def do_trace(self, context, rsc_id, op=None, interval=None):
'usage: trace <rsc> [<op>] [<interval>]'
rsc = self._get_trace_rsc(rsc_id)
if not rsc:
return False
if op == "probe":
op = "monitor"
if interval is None:
interval = "0"
if op is None:
self._trace_resource(context, rsc_id, rsc)
elif interval is None:
self._trace_op(context, rsc_id, rsc, op)
else:
self._trace_op_interval(context, rsc_id, rsc, op, interval)
if not cib_factory.commit():
return False
if op is not None:
common_info("Trace for %s:%s is written to %s/trace_ra/" %
(rsc_id, op, config.path.heartbeat_dir))
else:
common_info("Trace for %s is written to %s/trace_ra/" %
(rsc_id, config.path.heartbeat_dir))
if op is not None and op != "monitor":
common_info("Trace set, restart %s to trace the %s operation" % (rsc_id, op))
else:
common_info("Trace set, restart %s to trace non-monitor operations" % (rsc_id))
return True
def do_trace(self, context, rsc_id, op=None, interval=None):
'usage: trace <rsc> [<op>] [<interval>]'
rsc = self._get_trace_rsc(rsc_id)
if not rsc:
return False
if op == "probe":
op = "monitor"
if op is None:
self._trace_resource(context, rsc_id, rsc)
elif interval is None:
self._trace_op(context, rsc_id, rsc, op)
else:
self._trace_op_interval(context, rsc_id, rsc, op, interval)
if not cib_factory.commit():
return False
if op is not None:
common_info("Trace for %s:%s is written to %s/trace_ra/" %
(rsc_id, op, config.path.heartbeat_dir))
else:
common_info("Trace for %s is written to %s/trace_ra/" %
(rsc_id, config.path.heartbeat_dir))
if op is not None and op != "monitor":
common_info("Trace set, restart %s to trace the %s operation" % (rsc_id, op))
else:
common_info("Trace set, restart %s to trace non-monitor operations" % (rsc_id))
return True
def set_deep_meta_attr(rsc, attr, value, commit=True):
"""
If the referenced rsc is a primitive that belongs to a group,
then set its attribute.
Otherwise, go up to the topmost resource which contains this
resource and set the attribute there (i.e. if the resource is
cloned).
If it's a group then check its children. If any of them has
the attribute set to a value different from the one given,
then ask the user whether to reset them or not (exact
behaviour depends on the value of config.core.manage_children).
"""
def update_obj(obj):
"""
set the meta attribute in the given object
"""
node = obj.node
obj.set_updated()
if not (node.tag == "primitive" and
node.getparent().tag == "group"):
node = xmlutil.get_topmost_rsc(node)
return set_deep_meta_attr_node(node, attr, value)
def flatten(objs):
for obj in objs:
if isinstance(obj, list):
for subobj in obj:
yield subobj
else:
yield obj
def resolve(obj):
if obj.obj_type == 'tag':
return [cib_factory.find_object(o) for o in obj.node.xpath('./obj_ref/@id')]
return obj
objs = cib_factory.find_objects(rsc)
while any(obj for obj in objs if obj.obj_type == 'tag'):
objs = list(flatten(resolve(obj) for obj in objs))
common_debug("set_deep_meta_attr: %s" % (', '.join([obj.obj_id for obj in objs])))
if not objs:
common_error("Resource not found: %s" % (rsc))
return False
ok = all(update_obj(obj) for obj in objs)
if not ok:
common_error("Failed to update meta attributes for %s" % (rsc))
return False
if not commit:
return True
ok = cib_factory.commit()
if not ok:
common_error("Failed to commit updates to %s" % (rsc))
return False
return True
def _stop_if_running(self, rscs):
rscstate = xmlutil.RscState()
to_stop = [rsc for rsc in rscs if rscstate.is_running(rsc)]
from ui_resource import set_deep_meta_attr
if len(to_stop) > 0:
ok = all(set_deep_meta_attr(rsc, 'target-role', 'Stopped',
commit=False) for rsc in to_stop)
if not ok or not cib_factory.commit():
raise ValueError("Failed to stop one or more running resources: %s" %
(', '.join(to_stop)))
def _commit(self, force=None):
if force and force != "force":
syntax_err(('configure.commit', force))
return False
if not cib_factory.has_cib_changed():
common_info("apparently there is nothing to commit")
common_info("try changing something first")
return True
rc1 = True
if not (force or utils.cibadmin_can_patch()):
rc1 = cib_factory.is_current_cib_equal()
rc2 = cib_factory.has_no_primitives() or \
self._verify(mkset_obj("xml", "changed"), mkset_obj("xml"))
if rc1 and rc2:
return cib_factory.commit()
if force or config.core.force:
common_info("commit forced")
return cib_factory.commit(force=True)
if utils.ask("Do you still want to commit?"):
return cib_factory.commit(force=True)
return False
def _stop_if_running(self, rscs):
rscstate = xmlutil.RscState()
to_stop = [rsc for rsc in rscs if rscstate.is_running(rsc)]
from ui_resource import set_deep_meta_attr
if len(to_stop) > 0:
ok = all(
set_deep_meta_attr(rsc, 'target-role', 'Stopped', commit=False)
for rsc in to_stop)
if not ok or not cib_factory.commit():
raise ValueError(
"Failed to stop one or more running resources: %s" %
(', '.join(to_stop)))
def _commit(self, force=False, replace=False):
if force:
syntax_err(('configure.commit', force))
return False
if not cib_factory.has_cib_changed():
common_info("apparently there is nothing to commit")
common_info("try changing something first")
return True
replace = replace or not utils.cibadmin_can_patch()
rc1 = True
if replace and not force:
rc1 = cib_factory.is_current_cib_equal()
rc2 = cib_factory.has_no_primitives() or \
self._verify(mkset_obj("xml", "changed"), mkset_obj("xml"))
if rc1 and rc2:
return cib_factory.commit(replace=replace)
if force or config.core.force:
common_info("commit forced")
return cib_factory.commit(force=True, replace=replace)
if utils.ask("Do you still want to commit?"):
return cib_factory.commit(force=True, replace=replace)
return False
def do_untrace(self, context, rsc_id, op=None, interval=None):
'usage: untrace <rsc> [<op>] [<interval>]'
rsc = self._get_trace_rsc(rsc_id)
if not rsc:
return False
if op == "probe":
op = "monitor"
if op is None:
n = 0
for tn in rsc.node.xpath('.//*[@%s]' % (constants.trace_ra_attr)):
self._remove_trace(rsc, tn)
n += 1
for tn in rsc.node.xpath('.//*[@name="%s"]' % (constants.trace_ra_attr)):
if tn.getparent().getparent().tag == 'op':
self._remove_trace(rsc, tn.getparent().getparent())
n += 1
else:
op_node = xmlutil.find_operation(rsc.node, op, interval=interval)
if op_node is None:
common_err("operation %s does not exist in %s" % (op, rsc.obj_id))
return False
self._remove_trace(rsc, op_node)
return cib_factory.commit()
def do_untrace(self, context, rsc_id, op=None, interval=None):
'usage: untrace <rsc> [<op>] [<interval>]'
rsc = self._get_trace_rsc(rsc_id)
if not rsc:
return False
if op == "probe":
op = "monitor"
if op is None:
n = 0
for tn in rsc.node.xpath('.//*[@%s]' % (constants.trace_ra_attr)):
self._remove_trace(rsc, tn)
n += 1
for tn in rsc.node.xpath('.//*[@name="%s"]' % (constants.trace_ra_attr)):
if tn.getparent().getparent().tag == 'op':
self._remove_trace(rsc, tn.getparent().getparent())
n += 1
else:
op_node = xmlutil.find_operation(rsc.node, op, interval=interval)
if op_node is None:
common_err("operation %s does not exist in %s" % (op, rsc.obj_id))
return False
self._remove_trace(rsc, op_node)
return cib_factory.commit()
def set_deep_meta_attr(rsc, attr, value, commit=True):
"""
If the referenced rsc is a primitive that belongs to a group,
then set its attribute.
Otherwise, go up to the topmost resource which contains this
resource and set the attribute there (i.e. if the resource is
cloned).
If it's a group then check its children. If any of them has
the attribute set to a value different from the one given,
then ask the user whether to reset them or not (exact
behaviour depends on the value of config.core.manage_children).
"""
def update_obj(obj):
"""
set the meta attribute in the given object
"""
node = obj.node
obj.set_updated()
if not (node.tag == "primitive" and
node.getparent().tag == "group"):
node = xmlutil.get_topmost_rsc(node)
return set_deep_meta_attr_node(node, attr, value)
def flatten(objs):
for obj in objs:
if isinstance(obj, list):
for subobj in obj:
yield subobj
else:
yield obj
def resolve(obj):
if obj.obj_type == 'tag':
ret = [cib_factory.find_object(o) for o in obj.node.xpath('./obj_ref/@id')]
ret = [r for r in ret if r is not None]
return ret
return obj
def is_resource(obj):
return xmlutil.is_resource(obj.node)
objs = cib_factory.find_objects(rsc)
if objs is None:
common_error("CIB is not valid!")
return False
while any(obj for obj in objs if obj.obj_type == 'tag'):
objs = list(flatten(resolve(obj) for obj in objs))
objs = filter(is_resource, objs)
common_debug("set_deep_meta_attr: %s" % (', '.join([obj.obj_id for obj in objs])))
if not objs:
common_error("Resource not found: %s" % (rsc))
return False
ok = all(update_obj(obj) for obj in objs)
if not ok:
common_error("Failed to update meta attributes for %s" % (rsc))
return False
if not commit:
return True
ok = cib_factory.commit()
if not ok:
common_error("Failed to commit updates to %s" % (rsc))
return False
return True
