def validate_additional_ng_scaling(cluster, additional):
rm = vu.get_resourcemanager(cluster)
scalable_processes = _get_scalable_processes()
for ng_id in additional:
ng = u.get_by_id(cluster.node_groups, ng_id)
if not set(ng.node_processes).issubset(scalable_processes):
msg = _("Vanilla plugin cannot scale nodegroup with processes: %s")
raise ex.NodeGroupCannotBeScaled(ng.name,
msg % ' '.join(ng.node_processes))
if not rm and 'nodemanager' in ng.node_processes:
msg = _("Vanilla plugin cannot scale node group with processes "
"which have no master-processes run in cluster")
raise ex.NodeGroupCannotBeScaled(ng.name, msg)
def validate_additional_ng_scaling(cls, cluster, additional):
rm = cls.PU.get_resourcemanager(cluster)
scalable_processes = cls._get_scalable_processes()
for ng_id in additional:
ng = u.get_by_id(cluster.node_groups, ng_id)
if not set(ng.node_processes).issubset(scalable_processes):
msg = _("CDH plugin cannot scale nodegroup with processes: "
"%(processes)s")
raise ex.NodeGroupCannotBeScaled(
ng.name, msg % {'processes': ' '.join(ng.node_processes)})
if not rm and 'YARN_NODEMANAGER' in ng.node_processes:
msg = _("CDH plugin cannot scale node group with processes "
"which have no master-processes run in cluster")
raise ex.NodeGroupCannotBeScaled(ng.name, msg)
def _validate_existing_ng_scaling(self, cluster, existing):
scalable_processes = self._get_scalable_processes()
dn_to_delete = 0
for ng in cluster.node_groups:
if ng.id in existing:
if ng.count > existing[ng.id] and ("datanode"
in ng.node_processes):
dn_to_delete += ng.count - existing[ng.id]
if not set(ng.node_processes).issubset(scalable_processes):
raise ex.NodeGroupCannotBeScaled(
ng.name,
_("Spark plugin cannot scale nodegroup"
" with processes: %s") % ' '.join(ng.node_processes))
dn_amount = len(utils.get_instances(cluster, "datanode"))
rep_factor = utils.get_config_value_or_default('HDFS',
"dfs.replication",
cluster)
if dn_to_delete > 0 and dn_amount - dn_to_delete < rep_factor:
raise ex.ClusterCannotBeScaled(
cluster.name,
_("Spark plugin cannot shrink cluster because "
"there would be not enough nodes for HDFS "
"replicas (replication factor is %s)") % rep_factor)
def _validate_additional_ng_scaling(self, cluster, additional):
jt = vu.get_jobtracker(cluster)
scalable_processes = self._get_scalable_processes()
for ng_id in additional:
ng = g.get_by_id(cluster.node_groups, ng_id)
if not set(ng.node_processes).issubset(scalable_processes):
raise ex.NodeGroupCannotBeScaled(
ng.name, _("Vanilla plugin cannot scale nodegroup"
" with processes: %s") %
' '.join(ng.node_processes))
if not jt and 'tasktracker' in ng.node_processes:
raise ex.NodeGroupCannotBeScaled(
ng.name, _("Vanilla plugin cannot scale node group with "
"processes which have no master-processes run "
"in cluster"))
def _validate_existing_ng_scaling(self, cluster, existing):
scalable_processes = self._get_scalable_processes()
for ng in cluster.node_groups:
if ng.id in existing:
if not set(ng.node_processes).issubset(scalable_processes):
raise ex.NodeGroupCannotBeScaled(
ng.name,
_("Storm plugin cannot scale nodegroup"
" with processes: %s") % ' '.join(ng.node_processes))
def _validate_additional_ng_scaling(self, cluster, additional):
scalable_processes = self._get_scalable_processes()
for ng_id in additional:
ng = ug.get_by_id(cluster.node_groups, ng_id)
if not set(ng.node_processes).issubset(scalable_processes):
raise ex.NodeGroupCannotBeScaled(
ng.name,
_("Spark plugin cannot scale nodegroup"
" with processes: %s") % ' '.join(ng.node_processes))
def validate_existing_ng_scaling(cluster, existing):
scalable_processes = _get_scalable_processes()
dn_to_delete = 0
for ng in cluster.node_groups:
if ng.id in existing:
if ng.count > existing[ng.id] and "datanode" in ng.node_processes:
dn_to_delete += ng.count - existing[ng.id]
if not set(ng.node_processes).issubset(scalable_processes):
msg = _("CDH plugin cannot scale nodegroup with processes: "
"%(processes)s")
raise ex.NodeGroupCannotBeScaled(
ng.name, msg % {'processes': ' '.join(ng.node_processes)})
def validate_existing_ng_scaling(cluster, existing):
scalable_processes = _get_scalable_processes()
dn_to_delete = 0
for ng in cluster.node_groups:
if ng.id in existing:
if (ng.count > existing[ng.id]
and 'HDFS_DATANODE' in ng.node_processes):
dn_to_delete += ng.count - existing[ng.id]
if not set(ng.node_processes).issubset(scalable_processes):
msg = _("CDH plugin cannot scale nodegroup with processes: "
"%(processes)s")
raise ex.NodeGroupCannotBeScaled(
ng.name, msg % {'processes': ' '.join(ng.node_processes)})
dn_count = _get_inst_count(cluster, 'HDFS_DATANODE') - dn_to_delete
replicas = PU.get_config_value('HDFS', 'dfs_replication', cluster)
if dn_count < replicas:
raise ex.ClusterCannotBeScaled(
cluster,
_('Number of datanodes must be not less than dfs_replication.'))
def validate_existing_ng_scaling(pctx, cluster, existing):
scalable_processes = _get_scalable_processes()
dn_to_delete = 0
for ng in cluster.node_groups:
if ng.id in existing:
if ng.count > existing[ng.id] and "datanode" in ng.node_processes:
dn_to_delete += ng.count - existing[ng.id]
if not set(ng.node_processes).issubset(scalable_processes):
msg = _("Vanilla plugin cannot scale nodegroup "
"with processes: %s")
raise ex.NodeGroupCannotBeScaled(
ng.name, msg % ' '.join(ng.node_processes))
dn_amount = len(vu.get_datanodes(cluster))
rep_factor = cu.get_config_value(pctx, 'HDFS', 'dfs.replication', cluster)
if dn_to_delete > 0 and dn_amount - dn_to_delete < rep_factor:
msg = _("Vanilla plugin cannot shrink cluster because it would be "
"not enough nodes for replicas (replication factor is %s)")
raise ex.ClusterCannotBeScaled(cluster.name, msg % rep_factor)
