def _check_decommission(cluster, instances, check_func, option):
poll_utils.plugin_option_poll(cluster, is_decommissioned, option,
_("Wait for decommissioning"), 5, {
'cluster': cluster,
'check_func': check_func,
'instances': instances
})
def wait_for_host_registrations(self, num_hosts, ambari_info):
cluster = ambari_info.get_cluster()
poll_utils.plugin_option_poll(
cluster, self._check_host_registrations,
cfgprov.HOST_REGISTRATIONS_TIMEOUT,
_("Wait for host registrations"), 5, {
'num_hosts': num_hosts, 'ambari_info': ambari_info})
def wait_for_host_registrations(self, num_hosts, ambari_info):
cluster = ambari_info.get_cluster()
poll_utils.plugin_option_poll(cluster, self._check_host_registrations,
cfgprov.HOST_REGISTRATIONS_TIMEOUT,
_("Wait for host registrations"), 5, {
'num_hosts': num_hosts,
'ambari_info': ambari_info
})
def _start_cloudera_manager(self, cluster, timeout_config):
manager = self.get_manager(cluster)
with manager.remote() as r:
cmd.start_cloudera_db(r)
cmd.start_manager(r)
poll_utils.plugin_option_poll(
cluster, self._check_cloudera_manager_started, timeout_config,
_("Await starting Cloudera Manager"), 2, {'manager': manager})
def _await_agents(self, cluster, instances, timeout_config):
api = self.get_api_client(instances[0].cluster)
poll_utils.plugin_option_poll(cluster,
self._agents_connected, timeout_config,
_("Await Cloudera agents"), 5, {
'instances': instances,
'api': api
})
def _start_cloudera_manager(self, cluster, timeout_config):
manager = self.get_manager(cluster)
with manager.remote() as r:
cmd.start_cloudera_db(r)
cmd.start_manager(r)
poll_utils.plugin_option_poll(
cluster, self._check_cloudera_manager_started, timeout_config,
_("Await starting Cloudera Manager"), 2, {'manager': manager})
def _check_decommission(cluster, instances, check_func, option):
poll_utils.plugin_option_poll(
cluster,
is_decommissioned,
option,
_("Wait for decommissioning"),
5,
{"cluster": cluster, "check_func": check_func, "instances": instances},
)
def _await_agents(self, cluster, instances, timeout_config):
api = self.get_api_client(instances[0].cluster)
poll_utils.plugin_option_poll(
cluster,
self._agents_connected,
timeout_config,
_("Await Cloudera agents"),
5,
{"instances": instances, "api": api},
)
def await_datanodes(cluster):
datanodes_count = len(utils.get_instances(cluster, "datanode"))
if datanodes_count < 1:
return
log_msg = _("Waiting on %d DataNodes to start up") % datanodes_count
with utils.get_instance(cluster, "namenode").remote() as r:
poll_utils.plugin_option_poll(
cluster, _check_datanodes_count,
c_helper.DATANODES_STARTUP_TIMEOUT,
log_msg, 1, {"remote": r, "count": datanodes_count})
def await_datanodes(cluster):
datanodes_count = len(vu.get_datanodes(cluster))
if datanodes_count < 1:
return
l_message = _("Waiting on %s datanodes to start up") % datanodes_count
with vu.get_namenode(cluster).remote() as r:
poll_utils.plugin_option_poll(
cluster, _check_datanodes_count,
c_helper.DATANODES_STARTUP_TIMEOUT, l_message, 1, {
'remote': r, 'count': datanodes_count})
def test_plugin_poll_first_scenario(self, cluster_exists, logger):
cluster_exists.return_value = True
fake_get_status = mock.Mock()
fake_get_status.side_effect = [False, False, True]
fake_kwargs = {'kwargs': {'cat': 'tom', 'bond': 'james bond'}}
poll_utils.plugin_option_poll(FakeCluster({}), fake_get_status,
FakeOption(5, 'target', 'name'),
'fake_operation', 5, **fake_kwargs)
expected_call = mock.call('Operation with name fake_operation was '
'executed successfully in timeout 5')
self.assertEqual([expected_call], logger.call_args_list)
def test_plugin_poll_first_scenario(self, cluster_exists, logger):
cluster_exists.return_value = True
fake_get_status = mock.Mock()
fake_get_status.side_effect = [False, False, True]
fake_kwargs = {'kwargs': {'cat': 'tom', 'bond': 'james bond'}}
poll_utils.plugin_option_poll(
FakeCluster({}), fake_get_status, FakeOption(5, 'target', 'name'),
'fake_operation', 5, **fake_kwargs)
expected_call = mock.call('Operation with name fake_operation was '
'executed successfully in timeout 5')
self.assertEqual([expected_call], logger.call_args_list)
def await_datanodes(cluster):
datanodes_count = len(vu.get_datanodes(cluster))
if datanodes_count < 1:
return
l_message = _("Waiting on %s datanodes to start up") % datanodes_count
with vu.get_namenode(cluster).remote() as r:
poll_utils.plugin_option_poll(
cluster, _check_datanodes_count,
c_helper.DATANODES_STARTUP_TIMEOUT, l_message, 1, {
'remote': r, 'count': datanodes_count})
def _await_datanodes(self, cluster):
datanodes_count = len(vu.get_datanodes(cluster))
if datanodes_count < 1:
return
l_message = _("Waiting on %s datanodes to start up") % datanodes_count
LOG.info(l_message)
with remote.get_remote(vu.get_namenode(cluster)) as r:
poll_utils.plugin_option_poll(
cluster, run.check_datanodes_count,
c_helper.DATANODES_STARTUP_TIMEOUT, l_message, 1, {
'remote': r,
'count': datanodes_count})
def await_datanodes(cluster):
datanodes_count = len(utils.get_instances(cluster, "datanode"))
if datanodes_count < 1:
return
log_msg = _("Waiting on %d DataNodes to start up") % datanodes_count
with utils.get_instance(cluster, "namenode").remote() as r:
poll_utils.plugin_option_poll(cluster, _check_datanodes_count,
c_helper.DATANODES_STARTUP_TIMEOUT,
log_msg, 1, {
"remote": r,
"count": datanodes_count
})
def _await_datanodes(self, cluster):
datanodes_count = len(vu.get_datanodes(cluster))
if datanodes_count < 1:
return
l_message = _("Waiting on %s datanodes to start up") % datanodes_count
LOG.info(l_message)
with remote.get_remote(vu.get_namenode(cluster)) as r:
poll_utils.plugin_option_poll(
cluster, run.check_datanodes_count,
c_helper.DATANODES_STARTUP_TIMEOUT, l_message, 1, {
'remote': r,
'count': datanodes_count})
def decommission_dn(nn, inst_to_be_deleted, survived_inst):
with remote.get_remote(nn) as r:
r.write_file_to('/etc/hadoop/dn.excl',
utils.generate_fqdn_host_names(
inst_to_be_deleted))
run.refresh_nodes(remote.get_remote(nn), "dfsadmin")
context.sleep(3)
poll_utils.plugin_option_poll(
nn.cluster, _is_decommissioned, c_helper.DECOMMISSIONING_TIMEOUT,
_("Decommission %s") % "DataNodes", 3, {
'r': r, 'inst_to_be_deleted': inst_to_be_deleted})
r.write_files_to({
'/etc/hadoop/dn.incl': utils.
generate_fqdn_host_names(survived_inst),
'/etc/hadoop/dn.excl': ""})
def decommission_dn(nn, inst_to_be_deleted, survived_inst):
with remote.get_remote(nn) as r:
r.write_file_to('/etc/hadoop/dn.excl',
utils.generate_fqdn_host_names(
inst_to_be_deleted))
run.refresh_nodes(remote.get_remote(nn), "dfsadmin")
context.sleep(3)
poll_utils.plugin_option_poll(
nn.cluster, is_decommissioned,
config_helper.DECOMMISSIONING_TIMEOUT,
_("Decommission %s") % "DataNodes", 3,
{'r': r, 'inst_to_be_deleted': inst_to_be_deleted})
r.write_files_to({'/etc/hadoop/dn.incl':
utils.generate_fqdn_host_names(survived_inst),
'/etc/hadoop/dn.excl': ""})
def _check_decommission(cluster, instances, check_func, option):
poll_utils.plugin_option_poll(
cluster, is_decommissioned, option, _("Wait for decommissioning"),
5, {'cluster': cluster, 'check_func': check_func,
'instances': instances})
def plugin_option_poll(cluster, get_status, option, operation_name, sleep_time,
kwargs):
poll_utils.plugin_option_poll(cluster, get_status, option, operation_name,
sleep_time, kwargs)
