def run(args, options):
"""usage: run cluster/role/env/job cmd
Runs a shell command on all machines currently hosting shards of a single job.
This feature supports the same command line wildcards that are used to
populate a job's commands.
This means anything in the {{mesos.*}} and {{thermos.*}} namespaces.
"""
# TODO(William Farner): Add support for invoking on individual shards.
# TODO(Kevin Sweeney): Restore the ability to run across jobs with globs (See MESOS-3010).
if not args:
die("job path is required")
job_path = args.pop(0)
new_cmd = ["task", "run"]
instances_spec = job_path
if options.num_threads != 1:
new_cmd.append("--threads=%s" % options.num_threads)
if options.ssh_user is not None:
new_cmd.append("--ssh-user=%s" % options.ssh_user)
if options.executor_sandbox:
new_cmd.append("--executor-sandbox")
new_cmd.append('"%s"' % " ".join(args))
v1_deprecation_warning("ssh", new_cmd)
try:
cluster_name, role, env, name = AuroraJobKey.from_path(job_path)
except AuroraJobKey.Error as e:
die('Invalid job path "%s": %s' % (job_path, e))
command = " ".join(args)
cluster = CLUSTERS[cluster_name]
dcr = DistributedCommandRunner(cluster, role, env, [name], options.ssh_user)
dcr.run(command, parallelism=options.num_threads, executor_sandbox=options.executor_sandbox)
def parse_and_validate_sla_overrides(options, hostnames):
"""Parses and validates host SLA override 3-tuple (percentage, duration, reason).
In addition, logs an admin message about overriding default SLA values.
:param options: command line options
:type options: list of app.option
:param hostnames: host names override is issued to
:type hostnames: list of string
:rtype: a tuple of: override percentage (float) and override duration (Amount)
"""
has_override = bool(options.percentage) or bool(options.duration) or bool(
options.reason)
all_overrides = bool(options.percentage) and bool(
options.duration) and bool(options.reason)
if has_override != all_overrides:
die('All --override_* options are required when attempting to override default SLA values.'
)
print(options.percentage)
percentage = parse_sla_percentage(
options.percentage) if options.percentage else None
duration = parse_time(options.duration) if options.duration else None
if options.reason:
log_admin_message(
logging.WARNING,
'Default SLA values (percentage: %s, duration: %s) are overridden for the following '
'hosts: %s. New percentage: %s, duration: %s, override reason: %s'
% (SLA_UPTIME_PERCENTAGE_LIMIT, SLA_UPTIME_DURATION_LIMIT,
hostnames, percentage, duration, options.reason))
return percentage or SLA_UPTIME_PERCENTAGE_LIMIT, duration or SLA_UPTIME_DURATION_LIMIT
def parse_and_validate_sla_overrides(options, hostnames):
"""Parses and validates host SLA override 3-tuple (percentage, duration, reason).
In addition, logs an admin message about overriding default SLA values.
:param options: command line options
:type options: list of app.option
:param hostnames: host names override is issued to
:type hostnames: list of string
:rtype: a tuple of: override percentage (float) and override duration (Amount)
"""
has_override = bool(options.percentage) or bool(options.duration) or bool(options.reason)
all_overrides = bool(options.percentage) and bool(options.duration) and bool(options.reason)
if has_override != all_overrides:
die('All --override_* options are required when attempting to override default SLA values.')
print(options.percentage)
percentage = parse_sla_percentage(options.percentage) if options.percentage else None
duration = parse_time(options.duration) if options.duration else None
if options.reason:
log_admin_message(
logging.WARNING,
'Default SLA values (percentage: %s, duration: %s) are overridden for the following '
'hosts: %s. New percentage: %s, duration: %s, override reason: %s' % (
SLA_UPTIME_PERCENTAGE_LIMIT,
SLA_UPTIME_DURATION_LIMIT,
hostnames,
percentage,
duration,
options.reason))
return percentage or SLA_UPTIME_PERCENTAGE_LIMIT, duration or SLA_UPTIME_DURATION_LIMIT
def perform_maintenance_hosts(cluster):
"""usage: perform_maintenance_hosts {--filename=filename | --hosts=hosts}
[--batch_size=num]
[--post_drain_script=path]
[--grouping=function]
cluster
Asks the scheduler to remove any running tasks from the machine and remove it
from service temporarily, perform some action on them, then return the machines
to service.
"""
options = app.get_options()
drainable_hosts = parse_hosts(options)
if options.post_drain_script:
if not os.path.exists(options.post_drain_script):
die("No such file: %s" % options.post_drain_script)
cmd = os.path.abspath(options.post_drain_script)
drained_callback = lambda host: subprocess.Popen([cmd, host])
else:
drained_callback = None
MesosMaintenance(CLUSTERS[cluster], options.verbosity).perform_maintenance(
drainable_hosts,
batch_size=int(options.batch_size),
callback=drained_callback,
grouping_function=options.grouping)
def warn_if_dangerous_change(api, job_spec, config):
# Get the current job status, so that we can check if there's anything
# dangerous about this update.
resp = api.query_no_configs(
api.build_query(config.role(),
config.name(),
statuses=ACTIVE_STATES,
env=config.environment()))
if resp.responseCode != ResponseCode.OK:
die('Could not get job status from server for comparison: %s' %
resp.messageDEPRECATED)
remote_tasks = [
t.assignedTask.task for t in resp.result.scheduleStatusResult.tasks
]
resp = api.populate_job_config(config)
if resp.responseCode != ResponseCode.OK:
die('Server could not populate job config for comparison: %s' %
resp.messageDEPRECATED)
local_task_count = len(
resp.result.populateJobResult.populatedDEPRECATED)
remote_task_count = len(remote_tasks)
if (local_task_count >= 4 * remote_task_count
or local_task_count <= 4 * remote_task_count
or local_task_count == 0):
print(
'Warning: this update is a large change. Press ^c within 5 seconds to abort'
)
time.sleep(5)
def do_open(args, _):
"""usage: open cluster[/role[/env/job]]
Opens the scheduler page for a cluster, role or job in the default web browser.
"""
cluster_name = role = env = job = None
if len(args) == 0:
print('Open command requires a jobkey parameter.')
exit(1)
v1_deprecation_warning("open", ["job", "open"])
args = args[0].split("/")
if len(args) > 0:
cluster_name = args[0]
if len(args) > 1:
role = args[1]
if len(args) > 2:
env = args[2]
if len(args) > 3:
job = args[3]
else:
# TODO(ksweeney): Remove this after MESOS-2945 is completed.
die('env scheduler pages are not yet implemented, please specify job'
)
if not cluster_name:
die('cluster is required')
api = make_client(cluster_name)
import webbrowser
webbrowser.open_new_tab(
synthesize_url(api.scheduler_proxy.scheduler_client().url, role, env,
job))
def do_open(args, _):
"""usage: open cluster[/role[/env/job]]
Opens the scheduler page for a cluster, role or job in the default web browser.
"""
cluster_name = role = env = job = None
args = args[0].split("/")
if len(args) > 0:
cluster_name = args[0]
if len(args) > 1:
role = args[1]
if len(args) > 2:
env = args[2]
if len(args) > 3:
job = args[3]
else:
# TODO(ksweeney): Remove this after MESOS-2945 is completed.
die('env scheduler pages are not yet implemented, please specify job')
if not cluster_name:
die('cluster is required')
api = make_client(cluster_name)
import webbrowser
webbrowser.open_new_tab(
synthesize_url(api.scheduler_proxy.scheduler_client().url, role, env, job))
def list_jobs(cluster_and_role):
"""usage: list_jobs [--show-cron] cluster/role/env/job
Shows all jobs that match the job-spec known by the scheduler.
If --show-cron is specified, then also shows the registered cron schedule.
"""
def show_job_simple(job):
if options.show_cron_schedule:
print(('{0}/{1.key.role}/{1.key.environment}/{1.key.name}' +
'\t\'{1.cronSchedule}\'\t{1.cronCollisionPolicy}').format(cluster, job))
else:
print('{0}/{1.key.role}/{1.key.environment}/{1.key.name}'.format(cluster, job))
def show_job_pretty(job):
print("Job %s/%s/%s/%s:" %
(cluster, job.key.role, job.key.environment, job.key.name))
print('\tcron schedule: %s' % job.cronSchedule)
print('\tcron policy: %s' % job.cronCollisionPolicy)
options = app.get_options()
if options.show_cron_schedule and options.pretty:
print_fn = show_job_pretty
else:
print_fn = show_job_simple
# Take the cluster_and_role parameter, and split it into its two components.
if cluster_and_role.count('/') != 1:
die('list_jobs parameter must be in cluster/role format')
(cluster,role) = cluster_and_role.split('/')
api = make_client(cluster)
resp = api.get_jobs(role)
check_and_log_response(resp)
for job in resp.result.getJobsResult.configs:
print_fn(job)
def disambiguate_args_or_die(cls, args, options, client_factory=AuroraClientAPI):
"""
Returns a (AuroraClientAPI, AuroraJobKey, AuroraConfigFile:str) tuple
if one can be found given the args, potentially querying the scheduler with the returned client.
Calls die() with an appropriate error message otherwise.
Arguments:
args: args from app command invocation.
options: options from app command invocation. must have env and cluster attributes.
client_factory: a callable (cluster) -> AuroraClientAPI.
"""
if not len(args) > 0:
die('job path is required')
try:
job_key = AuroraJobKey.from_path(args[0])
client = client_factory(job_key.cluster)
config_file = args[1] if len(args) > 1 else None # the config for hooks
return client, job_key, config_file
except AuroraJobKey.Error:
log.warning("Failed to parse job path, falling back to compatibility mode")
role = args[0] if len(args) > 0 else None
name = args[1] if len(args) > 1 else None
env = None
config_file = None # deprecated form does not support hooks functionality
cluster = options.cluster
if not cluster:
die('cluster is required')
client = client_factory(cluster)
return client, cls._disambiguate_or_die(client, role, env, name), config_file
def make_admin_client(cluster):
if cluster not in CLUSTERS:
die('Unknown cluster: %s. Known clusters: %s' %
(cluster, ", ".join(CLUSTERS.keys())))
verbose = getattr(app.get_options(), 'verbosity', 'normal') == 'verbose'
return AuroraClientAPI(CLUSTERS[cluster],
AURORA_ADMIN_USER_AGENT_NAME,
verbose=verbose)
def diff(job_spec, config_file):
"""usage: diff cluster/role/env/job config
Compares a job configuration against a running job.
By default the diff will be displayed using 'diff', though you may choose an alternate
diff program by specifying the DIFF_VIEWER environment variable."""
options = app.get_options()
config = get_job_config(job_spec, config_file, options)
if options.rename_from:
cluster, role, env, name = options.rename_from
else:
cluster = config.cluster()
role = config.role()
env = config.environment()
name = config.name()
api = make_client(cluster)
resp = api.query(api.build_query(role, name, statuses=ACTIVE_STATES, env=env))
if resp.responseCode != ResponseCode.OK:
die('Request failed, server responded with "%s"' % resp.messageDEPRECATED)
remote_tasks = [t.assignedTask.task for t in resp.result.scheduleStatusResult.tasks]
resp = api.populate_job_config(config)
if resp.responseCode != ResponseCode.OK:
die('Request failed, server responded with "%s"' % resp.messageDEPRECATED)
local_tasks = resp.result.populateJobResult.populated
pp = pprint.PrettyPrinter(indent=2)
def pretty_print_task(task):
# The raw configuration is not interesting - we only care about what gets parsed.
task.configuration = None
task.executorConfig = ExecutorConfig(
name=AURORA_EXECUTOR_NAME,
data=json.loads(task.executorConfig.data))
return pp.pformat(vars(task))
def pretty_print_tasks(tasks):
return ',\n'.join([pretty_print_task(t) for t in tasks])
def dump_tasks(tasks, out_file):
out_file.write(pretty_print_tasks(tasks))
out_file.write('\n')
out_file.flush()
diff_program = os.environ.get('DIFF_VIEWER', 'diff')
with NamedTemporaryFile() as local:
dump_tasks(local_tasks, local)
with NamedTemporaryFile() as remote:
dump_tasks(remote_tasks, remote)
result = subprocess.call([diff_program, remote.name, local.name])
# Unlike most commands, diff doesn't return zero on success; it returns
# 1 when a successful diff is non-empty.
if result != 0 and result != 1:
return result
else:
return 0
def parse_hosts(options):
if bool(options.filename) == bool(options.hosts):
die('Please specify either --filename or --hosts')
if options.filename:
with open(options.filename, 'r') as hosts:
hosts = [hostname.strip() for hostname in hosts]
elif options.hosts:
hosts = [hostname.strip() for hostname in options.hosts.split(",")]
if not hosts:
die('No valid hosts found.')
return hosts
def _validate_update_config(config):
job_size = config.instances()
max_failures = config.update_config().max_total_failures().get()
if max_failures >= job_size:
die(UPDATE_CONFIG_MAX_FAILURES_ERROR % (job_size, job_size - 1))
if config.is_dedicated():
min_failure_threshold = int(math.floor(job_size * 0.02))
if max_failures < min_failure_threshold:
die(UPDATE_CONFIG_DEDICATED_THRESHOLD_ERROR % (job_size, min_failure_threshold))
def parse_sla_percentage(percentage):
"""Parses percentage value for an SLA check.
:param percentage: string percentage to parse
:type percentage: string
:rtype: float
"""
val = float(percentage)
if val <= 0 or val > 100:
die('Invalid percentage %s. Must be within (0, 100].' % percentage)
return val
def parse_sla_percentage(percentage):
"""Parses percentage value for an SLA check.
:param percentage: string percentage to parse
:type percentage: string
:rtype: float
"""
val = float(percentage)
if val <= 0 or val > 100:
die('Invalid percentage %s. Must be within (0, 100].' % percentage)
return val
def make_admin_client(cluster):
if cluster not in CLUSTERS:
die('Unknown cluster: %s. Known clusters: %s' % (cluster, ", ".join(CLUSTERS.keys())))
options = app.get_options()
verbose = getattr(options, 'verbosity', 'normal') == 'verbose'
return AuroraClientAPI(
CLUSTERS[cluster],
AURORA_ADMIN_USER_AGENT_NAME,
verbose=verbose,
bypass_leader_redirect=options.bypass_leader_redirect)
def parse_script(filename):
"""Parses shell script from the provided file and wraps it up into a subprocess callback.
:param filename: name of the script file
:type filename: string
:rtype: function
"""
if filename:
if not os.path.exists(filename):
die("No such file: %s" % filename)
cmd = os.path.abspath(filename)
return lambda host: subprocess.Popen([cmd, host])
else:
return None
def perform_maintenance_hosts(cluster):
"""usage: perform_maintenance_hosts {--filename=filename | --hosts=hosts}
[--post_drain_script=path]
[--grouping=function]
[--override_percentage=percentage]
[--override_duration=duration]
[--override_reason=reason]
[--unsafe_hosts_file=unsafe_hosts_filename]
cluster
Asks the scheduler to remove any running tasks from the machine and remove it
from service temporarily, perform some action on them, then return the machines
to service.
"""
options = app.get_options()
drainable_hosts = parse_hostnames(options.filename, options.hosts)
get_grouping_or_die(options.grouping)
has_override = bool(options.percentage) or bool(options.duration) or bool(options.reason)
all_overrides = bool(options.percentage) and bool(options.duration) and bool(options.reason)
if has_override != all_overrides:
die("All --override_* options are required when attempting to override default SLA values.")
percentage = parse_sla_percentage(options.percentage) if options.percentage else None
duration = parse_time(options.duration) if options.duration else None
if options.reason:
log_admin_message(
logging.WARNING,
"Default SLA values (percentage: %s, duration: %s) are overridden for the following "
"hosts: %s. New percentage: %s, duration: %s, override reason: %s"
% (
HostMaintenance.SLA_UPTIME_PERCENTAGE_LIMIT,
HostMaintenance.SLA_UPTIME_DURATION_LIMIT,
drainable_hosts,
percentage,
duration,
options.reason,
),
)
drained_callback = parse_script(options.post_drain_script)
HostMaintenance(CLUSTERS[cluster], options.verbosity).perform_maintenance(
drainable_hosts,
grouping_function=options.grouping,
callback=drained_callback,
percentage=percentage,
duration=duration,
output_file=options.unsafe_hosts_filename,
)
def parse_jobs_file(filename):
result = {}
with open(filename, 'r') as overrides:
for line in overrides:
if not line.strip():
continue
tokens = line.split()
if len(tokens) != 3:
die('Invalid line in %s:%s' % (filename, line))
job_key = AuroraJobKey.from_path(tokens[0])
result[job_key] = JobUpTimeLimit(
job=job_key,
percentage=parse_sla_percentage(tokens[1]),
duration_secs=parse_time(tokens[2]).as_(Time.SECONDS))
return result
def parse_jobs_file(filename):
result = {}
with open(filename, 'r') as overrides:
for line in overrides:
if not line.strip():
continue
tokens = line.split()
if len(tokens) != 3:
die('Invalid line in %s:%s' % (filename, line))
job_key = AuroraJobKey.from_path(tokens[0])
result[job_key] = JobUpTimeLimit(
job=job_key,
percentage=parse_sla_percentage(tokens[1]),
duration_secs=parse_time(tokens[2]).as_(Time.SECONDS)
)
return result
def warn_if_dangerous_change(api, job_spec, config):
# Get the current job status, so that we can check if there's anything
# dangerous about this update.
resp = api.query_no_configs(api.build_query(config.role(), config.name(),
statuses=ACTIVE_STATES, env=config.environment()))
if resp.responseCode != ResponseCode.OK:
die('Could not get job status from server for comparison: %s' % resp.messageDEPRECATED)
remote_tasks = [t.assignedTask.task for t in resp.result.scheduleStatusResult.tasks]
resp = api.populate_job_config(config)
if resp.responseCode != ResponseCode.OK:
die('Server could not populate job config for comparison: %s' % resp.messageDEPRECATED)
local_task_count = len(resp.result.populateJobResult.populated)
remote_task_count = len(remote_tasks)
if (local_task_count >= 4 * remote_task_count or local_task_count <= 4 * remote_task_count
or local_task_count == 0):
print('Warning: this update is a large change. Press ^c within 5 seconds to abort')
time.sleep(5)
def parse_script(filename):
"""Parses shell script from the provided file and wraps it up into a subprocess callback.
:param filename: name of the script file
:type filename: string
:rtype: function
"""
def callback(host):
subprocess.Popen([cmd, host]).wait()
if filename:
if not os.path.exists(filename):
die("No such file: %s" % filename)
cmd = os.path.abspath(filename)
return callback
else:
return None
def _validate_health_check_config(config):
health_check_config = config.health_check_config().get()
health_checker = health_check_config.get('health_checker', {})
# If we have old-style of configuring.
# TODO (AURORA-1563): Remove this code after we drop support for defining these directly in
# HealthCheckConfig.
for deprecated in {'endpoint', 'expected_response', 'expected_response_code'}:
if deprecated in health_check_config:
log.warn(HTTP_DEPRECATION_WARNING)
break
if SHELL_HEALTH_CHECK in health_checker:
# Make sure we specified a shell_command if we chose a shell config.
shell_health_checker = health_checker.get(SHELL_HEALTH_CHECK, {})
shell_command = shell_health_checker.get('shell_command')
if not shell_command:
# Must define a command.
die(MUST_PROVIDE_SHELL_COMMAND_ERROR)
def help_command(args):
"""usage: help [subcommand]
Prints help for using the aurora client, or one of its specific subcommands.
"""
if not args:
print(generate_full_usage())
sys.exit(0)
if len(args) > 1:
die('Please specify at most one subcommand.')
subcmd = args[0]
if subcmd in app.get_commands():
app.command_parser(subcmd).print_help()
else:
print('Subcommand %s not found.' % subcmd)
sys.exit(1)
def help(args):
"""usage: help [subcommand]
Prints help for using the aurora client, or one of its specific subcommands.
"""
if not args:
print(generate_full_usage())
sys.exit(0)
if len(args) > 1:
die('Please specify at most one subcommand.')
subcmd = args[0]
if subcmd in app.get_commands():
app.command_parser(subcmd).print_help()
else:
print('Subcommand %s not found.' % subcmd)
sys.exit(1)
def parse_hostnames_optional(list_option, file_option):
"""Parses host names from a comma-separated list or a filename.
Does not require either of the arguments (returns None list if no option provided).
:param list_option: command option with comma-separated list of host names
:type list_option: app.option
:param file_option: command option with filename (one host per line)
:type file_option: app.option
:rtype: list of host names or None.
"""
if bool(list_option) and bool(file_option):
die('Cannot specify both filename and list for the same option.')
hostnames = None
if file_option:
hostnames = _parse_hostname_file(file_option)
elif list_option:
hostnames = _parse_hostname_list(list_option)
return hostnames
def reconcile_tasks(cluster):
"""usage: reconcile_tasks
[--type=RECONCILIATION_TYPE]
[--batch_size=BATCHSIZE]
cluster
Reconcile the Mesos master and the scheduler. Default runs explicit
reconciliation with a batch size set in reconciliation_explicit_batch_size
scheduler configuration option.
"""
options = app.get_options()
client = make_admin_client_with_options(cluster)
if options.type == 'implicit':
resp = client.reconcile_implicit()
elif options.type == 'explicit':
resp = client.reconcile_explicit(options.batch_size)
else:
die('Unexpected value for --type: %s' % options.type)
check_and_log_response(resp)
def reconcile_tasks(cluster):
"""usage: reconcile_tasks
[--type=RECONCILIATION_TYPE]
[--batch_size=BATCHSIZE]
cluster
Reconcile the Mesos master and the scheduler. Default runs explicit
reconciliation with a batch size set in reconciliation_explicit_batch_size
scheduler configuration option.
"""
options = app.get_options()
client = make_admin_client_with_options(cluster)
if options.type == 'implicit':
resp = client.reconcile_implicit()
elif options.type == 'explicit':
resp = client.reconcile_explicit(options.batch_size)
else:
die('Unexpected value for --type: %s' % options.type)
check_and_log_response(resp)
def parse_hostnames_optional(list_option, file_option):
"""Parses host names from a comma-separated list or a filename.
Does not require either of the arguments (returns None list if no option provided).
:param list_option: command option with comma-separated list of host names
:type list_option: app.option
:param file_option: command option with filename (one host per line)
:type file_option: app.option
:rtype: list of host names or None.
"""
if bool(list_option) and bool(file_option):
die('Cannot specify both filename and list for the same option.')
hostnames = None
if file_option:
hostnames = _parse_hostname_file(file_option)
elif list_option:
hostnames = _parse_hostname_list(list_option)
return hostnames
def parse_hostnames(filename, hostnames):
"""Parses host names from a comma-separated list or a filename.
Fails if neither filename nor hostnames provided.
:param filename: filename with host names (one per line)
:type filename: string
:param hostnames: comma-separated list of host names
:type hostnames: string
:rtype: list of host names
"""
if bool(filename) == bool(hostnames):
die('Please specify either --filename or --hosts')
if filename:
hostnames = _parse_hostname_file(filename)
elif hostnames:
hostnames = _parse_hostname_list(hostnames)
if not hostnames:
die('No valid hosts found.')
return hostnames
def parse_hostnames(filename, hostnames):
"""Parses host names from a comma-separated list or a filename.
Fails if neither filename nor hostnames provided.
:param filename: filename with host names (one per line)
:type filename: string
:param hostnames: comma-separated list of host names
:type hostnames: string
:rtype: list of host names
"""
if bool(filename) == bool(hostnames):
die('Please specify either --filename or --hosts')
if filename:
hostnames = _parse_hostname_file(filename)
elif hostnames:
hostnames = _parse_hostname_list(hostnames)
if not hostnames:
die('No valid hosts found.')
return hostnames
def set_quota(cluster, role, cpu_str, ram, disk):
"""usage: set_quota cluster role cpu ram[MGT] disk[MGT]
Alters the amount of production quota allocated to a user.
"""
try:
ram_size = parse_data(ram).as_(Data.MB)
disk_size = parse_data(disk).as_(Data.MB)
except ValueError as e:
die(str(e))
try:
cpu = float(cpu_str)
ram_mb = int(ram_size)
disk_mb = int(disk_size)
except ValueError as e:
die(str(e))
resp = make_admin_client(cluster).set_quota(role, cpu, ram_mb, disk_mb)
check_and_log_response(resp)
def prune_tasks(args, options):
if len(args) == 0:
die('Must specify at least cluster.')
cluster = args[0]
t = TaskQuery()
if options.states:
t.statuses = set(map(ScheduleStatus._NAMES_TO_VALUES.get, options.states.split(',')))
if options.role:
t.role = options.role
if options.environment:
t.environment = options.environment
if options.limit:
t.limit = options.limit
api = make_admin_client_with_options(cluster)
rsp = api.prune_tasks(t)
if rsp.responseCode != ResponseCode.OK:
die('Failed to prune tasks: %s' % combine_messages(rsp))
else:
print("Tasks pruned.")
def set_quota(cluster, role, cpu_str, ram, disk):
"""usage: set_quota cluster role cpu ram[MGT] disk[MGT]
Alters the amount of production quota allocated to a user.
"""
try:
ram_size = parse_data(ram).as_(Data.MB)
disk_size = parse_data(disk).as_(Data.MB)
except ValueError as e:
die(str(e))
try:
cpu = float(cpu_str)
ram_mb = int(ram_size)
disk_mb = int(disk_size)
except ValueError as e:
die(str(e))
options = app.get_options()
resp = AuroraClientAPI(CLUSTERS[cluster], options.verbosity).set_quota(role, cpu, ram_mb, disk_mb)
check_and_log_response(resp)
def set_quota(cluster, role, cpu_str, ram, disk):
"""usage: set_quota cluster role cpu ram[MGT] disk[MGT]
Alters the amount of production quota allocated to a user.
"""
try:
ram_size = parse_data(ram).as_(Data.MB)
disk_size = parse_data(disk).as_(Data.MB)
except ValueError as e:
die(str(e))
try:
cpu = float(cpu_str)
ram_mb = int(ram_size)
disk_mb = int(disk_size)
except ValueError as e:
die(str(e))
options = app.get_options()
resp = AuroraClientAPI(CLUSTERS[cluster], options.verbosity).set_quota(role, cpu, ram_mb, disk_mb)
check_and_log_response(resp)
def _validate_update_config(config):
job_size = config.instances()
update_config = config.update_config()
health_check_config = config.health_check_config()
max_failures = update_config.max_total_failures().get()
watch_secs = update_config.watch_secs().get()
initial_interval_secs = health_check_config.initial_interval_secs().get()
max_consecutive_failures = health_check_config.max_consecutive_failures(
).get()
interval_secs = health_check_config.interval_secs().get()
if max_failures >= job_size:
die(UPDATE_CONFIG_MAX_FAILURES_ERROR % (job_size, job_size - 1))
if config.is_dedicated():
min_failure_threshold = int(math.floor(job_size * 0.02))
if max_failures < min_failure_threshold:
die(UPDATE_CONFIG_DEDICATED_THRESHOLD_ERROR %
(job_size, min_failure_threshold))
target_watch = initial_interval_secs + (max_consecutive_failures *
interval_secs)
if watch_secs <= target_watch:
die(WATCH_SECS_INSUFFICIENT_ERROR_FORMAT %
(watch_secs, target_watch, initial_interval_secs,
max_consecutive_failures, interval_secs))
def _validate_update_config(config):
job_size = config.instances()
update_config = config.update_config()
health_check_config = config.health_check_config()
max_failures = update_config.max_total_failures().get()
watch_secs = update_config.watch_secs().get()
initial_interval_secs = health_check_config.initial_interval_secs().get()
max_consecutive_failures = health_check_config.max_consecutive_failures().get()
min_consecutive_successes = health_check_config.min_consecutive_successes().get()
interval_secs = health_check_config.interval_secs().get()
if max_failures >= job_size:
die(UPDATE_CONFIG_MAX_FAILURES_ERROR % (job_size, job_size - 1))
if config.is_dedicated():
min_failure_threshold = int(math.floor(job_size * 0.02))
if max_failures < min_failure_threshold:
die(UPDATE_CONFIG_DEDICATED_THRESHOLD_ERROR % (job_size, min_failure_threshold))
params = [
(watch_secs, 'watch_secs'),
(max_consecutive_failures, 'max_consecutive_failures'),
(min_consecutive_successes, 'min_consecutive_successes'),
(initial_interval_secs, 'initial_interval_secs'),
(interval_secs, 'interval_secs')
]
for value, name in params:
if value < 0:
die(INVALID_VALUE_ERROR_FORMAT % (value, name))
def _validate_update_config(config):
job_size = config.instances()
update_config = config.update_config()
health_check_config = config.health_check_config()
max_failures = update_config.max_total_failures().get()
watch_secs = update_config.watch_secs().get()
initial_interval_secs = health_check_config.initial_interval_secs().get()
max_consecutive_failures = health_check_config.max_consecutive_failures().get()
interval_secs = health_check_config.interval_secs().get()
if max_failures >= job_size:
die(UPDATE_CONFIG_MAX_FAILURES_ERROR % (job_size, job_size - 1))
if config.is_dedicated():
min_failure_threshold = int(math.floor(job_size * 0.02))
if max_failures < min_failure_threshold:
die(UPDATE_CONFIG_DEDICATED_THRESHOLD_ERROR % (job_size, min_failure_threshold))
target_watch = initial_interval_secs + (max_consecutive_failures * interval_secs)
if watch_secs <= target_watch:
die(
WATCH_SECS_INSUFFICIENT_ERROR_FORMAT
% (watch_secs, target_watch, initial_interval_secs, max_consecutive_failures, interval_secs)
)
def _validate_update_config(config):
job_size = config.instances()
update_config = config.update_config()
health_check_config = config.health_check_config()
max_failures = update_config.max_total_failures().get()
watch_secs = update_config.watch_secs().get()
initial_interval_secs = health_check_config.initial_interval_secs().get()
max_consecutive_failures = health_check_config.max_consecutive_failures(
).get()
min_consecutive_successes = health_check_config.min_consecutive_successes(
).get()
interval_secs = health_check_config.interval_secs().get()
if max_failures >= job_size:
die(UPDATE_CONFIG_MAX_FAILURES_ERROR % (job_size, job_size - 1))
if config.is_dedicated():
min_failure_threshold = int(math.floor(job_size * 0.02))
if max_failures < min_failure_threshold:
die(UPDATE_CONFIG_DEDICATED_THRESHOLD_ERROR %
(job_size, min_failure_threshold))
params = [(watch_secs, 'watch_secs'),
(max_consecutive_failures, 'max_consecutive_failures'),
(min_consecutive_successes, 'min_consecutive_successes'),
(initial_interval_secs, 'initial_interval_secs'),
(interval_secs, 'interval_secs')]
for value, name in params:
if value < 0:
die(INVALID_VALUE_ERROR_FORMAT % (value, name))
def make_admin_client(cluster, verbose=False, bypass_leader_redirect=False):
"""Creates an API client with the specified options for use in admin commands.
:param cluster: The cluster to connect with.
:type cluster: Either a string cluster name or a Cluster object.
:param verbose: Should the client emit verbose output.
:type verbose: bool
:type bypass_leader_redirect: Should the client bypass the scheduler's leader redirect filter.
:type bypass_leader_redirect: bool
:rtype: an AuroraClientAPI instance.
"""
is_cluster_object = isinstance(cluster, Cluster)
if not is_cluster_object and cluster not in CLUSTERS:
die('Unknown cluster: %s. Known clusters: %s' % (cluster, ", ".join(CLUSTERS.keys())))
return AuroraClientAPI(
cluster if is_cluster_object else CLUSTERS[cluster],
AURORA_ADMIN_USER_AGENT_NAME,
verbose=verbose,
bypass_leader_redirect=bypass_leader_redirect)
def make_admin_client(cluster, verbose=False, bypass_leader_redirect=False):
"""Creates an API client with the specified options for use in admin commands.
:param cluster: The cluster to connect with.
:type cluster: Either a string cluster name or a Cluster object.
:param verbose: Should the client emit verbose output.
:type verbose: bool
:type bypass_leader_redirect: Should the client bypass the scheduler's leader redirect filter.
:type bypass_leader_redirect: bool
:rtype: an AuroraClientAPI instance.
"""
is_cluster_object = isinstance(cluster, Cluster)
if not is_cluster_object and cluster not in CLUSTERS:
die('Unknown cluster: %s. Known clusters: %s' %
(cluster, ", ".join(CLUSTERS.keys())))
return AuroraClientAPI(cluster if is_cluster_object else CLUSTERS[cluster],
AURORA_ADMIN_USER_AGENT_NAME,
verbose=verbose,
bypass_leader_redirect=bypass_leader_redirect)
def run(args, options):
"""usage: run cluster/role/env/job cmd
Runs a shell command on all machines currently hosting shards of a single job.
This feature supports the same command line wildcards that are used to
populate a job's commands.
This means anything in the {{mesos.*}} and {{thermos.*}} namespaces.
"""
# TODO(William Farner): Add support for invoking on individual shards.
# TODO(Kevin Sweeney): Restore the ability to run across jobs with globs (See MESOS-3010).
if not args:
die('job path is required')
job_path = args.pop(0)
new_cmd = ["task", "run"]
instances_spec = job_path
if options.num_threads != 1:
new_cmd.append("--threads=%s" % options.num_threads)
if options.ssh_user is not None:
new_cmd.append("--ssh-user=%s" % options.ssh_user)
if options.executor_sandbox:
new_cmd.append("--executor-sandbox")
new_cmd.append("\"%s\"" % " ".join(args))
v1_deprecation_warning("ssh", new_cmd)
try:
cluster_name, role, env, name = AuroraJobKey.from_path(job_path)
except AuroraJobKey.Error as e:
die('Invalid job path "%s": %s' % (job_path, e))
command = ' '.join(args)
cluster = CLUSTERS[cluster_name]
dcr = DistributedCommandRunner(cluster, role, env, [name],
options.ssh_user)
dcr.run(command,
parallelism=options.num_threads,
executor_sandbox=options.executor_sandbox)
def prune_tasks(args, options):
if len(args) == 0:
die('Must specify at least cluster.')
cluster = args[0]
t = TaskQuery()
if options.states:
t.statuses = set(
map(ScheduleStatus._NAMES_TO_VALUES.get,
options.states.split(',')))
if options.role:
t.role = options.role
if options.environment:
t.environment = options.environment
if options.limit:
t.limit = options.limit
api = make_admin_client_with_options(cluster)
rsp = api.prune_tasks(t)
if rsp.responseCode != ResponseCode.OK:
die('Failed to prune tasks: %s' % combine_messages(rsp))
else:
print("Tasks pruned.")
def list_jobs(cluster_and_role):
"""usage: list_jobs [--show-cron] cluster/role/env/job
Shows all jobs that match the job-spec known by the scheduler.
If --show-cron is specified, then also shows the registered cron schedule.
"""
def show_job_simple(job):
if options.show_cron_schedule:
print(('{0}/{1.key.role}/{1.key.environment}/{1.key.name}' +
'\t\'{1.cronSchedule}\'\t{1.cronCollisionPolicy}').format(
cluster, job))
else:
print('{0}/{1.key.role}/{1.key.environment}/{1.key.name}'.format(
cluster, job))
def show_job_pretty(job):
print("Job %s/%s/%s/%s:" %
(cluster, job.key.role, job.key.environment, job.key.name))
print('\tcron schedule: %s' % job.cronSchedule)
print('\tcron policy: %s' % job.cronCollisionPolicy)
options = app.get_options()
v1_deprecation_warning("list_jobs", ["job", "list", cluster_and_role])
if options.show_cron_schedule and options.pretty:
print_fn = show_job_pretty
else:
print_fn = show_job_simple
# Take the cluster_and_role parameter, and split it into its two components.
if cluster_and_role.count('/') != 1:
die('list_jobs parameter must be in cluster/role format')
cluster, role = cluster_and_role.split('/')
api = make_client(cluster)
resp = api.get_jobs(role)
check_and_log_response(resp)
for job in resp.result.getJobsResult.configs:
print_fn(job)
def run(args, options):
"""usage: run cluster/role/env/job cmd
Runs a shell command on all machines currently hosting shards of a single job.
This feature supports the same command line wildcards that are used to
populate a job's commands.
This means anything in the {{mesos.*}} and {{thermos.*}} namespaces.
"""
# TODO(William Farner): Add support for invoking on individual shards.
# TODO(Kevin Sweeney): Restore the ability to run across jobs with globs (See MESOS-3010).
if not args:
die('job path is required')
job_path = args.pop(0)
try:
cluster_name, role, env, name = AuroraJobKey.from_path(job_path)
except AuroraJobKey.Error as e:
die('Invalid job path "%s": %s' % (job_path, e))
command = ' '.join(args)
cluster = CLUSTERS[cluster_name]
dcr = DistributedCommandRunner(cluster, role, env, [name], options.ssh_user)
dcr.run(command, parallelism=options.num_threads, executor_sandbox=options.executor_sandbox)
def _disambiguate_or_die(cls, client, role, env, name):
# Returns a single AuroraJobKey if one can be found given the args, potentially
# querying the scheduler. Calls die() with an appropriate error message otherwise.
try:
disambiguator = cls(client, role, env, name)
except ValueError as e:
die(e)
if not disambiguator.ambiguous:
return AuroraJobKey(client.cluster.name, role, env, name)
deprecation_warning("Job ambiguously specified - querying the scheduler to disambiguate")
matches = disambiguator.query_matches()
if len(matches) == 1:
(match,) = matches
log.info("Found job %s" % match)
return match
elif len(matches) == 0:
die("No jobs found")
else:
die("Multiple jobs match (%s) - disambiguate by using the CLUSTER/ROLE/ENV/NAME form"
% ",".join(str(m) for m in matches))
def _parse_hostname_list(hostname_list):
hostnames = [hostname.strip() for hostname in hostname_list.split(",")]
if not hostnames:
die('No valid hosts found.')
return hostnames
def query(args, options):
"""usage: query [--force]
[--listformat=FORMAT]
[--shards=N[,N,...]]
[--states=State[,State,...]]
cluster [role [job]]
Query Mesos about jobs and tasks.
"""
def _convert_fmt_string(fmtstr):
import re
def convert(match):
return "%%(%s)s" % match.group(1)
return re.sub(r'%(\w+)%', convert, fmtstr)
def flatten_task(t, d={}):
for key in t.__dict__.keys():
val = getattr(t, key)
try:
val.__dict__.keys()
except AttributeError:
d[key] = val
else:
flatten_task(val, d)
return d
def map_values(d):
default_value = lambda v: v
mapping = {
'status': lambda v: ScheduleStatus._VALUES_TO_NAMES[v],
}
return dict(
(k, mapping.get(k, default_value)(v)) for (k, v) in d.items()
)
for state in options.states.split(','):
if state not in ScheduleStatus._NAMES_TO_VALUES:
msg = "Unknown state '%s' specified. Valid states are:\n" % state
msg += ','.join(ScheduleStatus._NAMES_TO_VALUES.keys())
die(msg)
# Role, Job, Instances, States, and the listformat
if len(args) == 0:
die('Must specify at least cluster.')
cluster = args[0]
role = args[1] if len(args) > 1 else None
job = args[2] if len(args) > 2 else None
instances = set(map(int, options.shards.split(','))) if options.shards else set()
if options.states:
states = set(map(ScheduleStatus._NAMES_TO_VALUES.get, options.states.split(',')))
else:
states = ACTIVE_STATES | TERMINAL_STATES
listformat = _convert_fmt_string(options.listformat)
# Figure out "expensive" queries here and bone if they do not have --force
# - Does not specify role
if not role and not options.force:
die('--force is required for expensive queries (no role specified)')
# - Does not specify job
if not job and not options.force:
die('--force is required for expensive queries (no job specified)')
# - Specifies status outside of ACTIVE_STATES
if not (states <= ACTIVE_STATES) and not options.force:
die('--force is required for expensive queries (states outside ACTIVE states')
api = make_admin_client(cluster)
query_info = api.query(TaskQuery(role=role, jobName=job, instanceIds=instances, statuses=states))
if query_info.responseCode != ResponseCode.OK:
die('Failed to query scheduler: %s' % combine_messages(query_info))
tasks = query_info.result.scheduleStatusResult.tasks
if tasks is None:
return
try:
for task in tasks:
d = flatten_task(task)
print(listformat % map_values(d))
except KeyError:
msg = "Unknown key in format string. Valid keys are:\n"
msg += ','.join(d.keys())
die(msg)
def _parse_hostname_file(filename):
with open(filename, 'r') as hosts:
hostnames = [hostname.strip() for hostname in hosts]
if not hostnames:
die('No valid hosts found in %s.' % filename)
return hostnames
def ssh(args, options):
"""usage: ssh cluster/role/env/job shard [args...]
Initiate an SSH session on the machine that a shard is running on.
"""
if not args:
die('Job path is required')
job_path = args.pop(0)
try:
cluster_name, role, env, name = AuroraJobKey.from_path(job_path)
except AuroraJobKey.Error as e:
die('Invalid job path "%s": %s' % (job_path, e))
if not args:
die('Shard is required')
try:
shard = int(args.pop(0))
except ValueError:
die('Shard must be an integer')
api = make_client(cluster_name)
resp = api.query(api.build_query(role, name, set([int(shard)]), env=env))
check_and_log_response(resp)
first_task = resp.result.scheduleStatusResult.tasks[0]
remote_cmd = 'bash' if not args else ' '.join(args)
command = DistributedCommandRunner.substitute(remote_cmd, first_task,
api.cluster, executor_sandbox=options.executor_sandbox)
ssh_command = ['ssh', '-t']
role = first_task.assignedTask.task.owner.role
slave_host = first_task.assignedTask.slaveHost
for tunnel in options.tunnels:
try:
port, name = tunnel.split(':')
port = int(port)
except ValueError:
die('Could not parse tunnel: %s. Must be of form PORT:NAME' % tunnel)
if name not in first_task.assignedTask.assignedPorts:
die('Task %s has no port named %s' % (first_task.assignedTask.taskId, name))
ssh_command += [
'-L', '%d:%s:%d' % (port, slave_host, first_task.assignedTask.assignedPorts[name])]
ssh_command += ['%s@%s' % (options.ssh_user or role, slave_host), command]
return subprocess.call(ssh_command)
def ssh(args, options):
"""usage: ssh cluster/role/env/job shard [args...]
Initiate an SSH session on the machine that a shard is running on.
"""
if not args:
die('Job path is required')
job_path = args.pop(0)
try:
cluster_name, role, env, name = AuroraJobKey.from_path(job_path)
except AuroraJobKey.Error as e:
die('Invalid job path "%s": %s' % (job_path, e))
if not args:
die('Shard is required')
try:
shard = int(args.pop(0))
except ValueError:
die('Shard must be an integer')
newcmd = ["task", "ssh", "%s/%s" % (job_path, shard)]
if len(options.tunnels) > 0:
newcmd.append("--tunnels=%s" % options.tunnels)
if options.ssh_user is not None:
newcmd.append("--ssh-user=%s" % options.ssh_user)
if options.executor_sandbox:
newcmd.append("--executor-sandbox")
if len(args) > 0:
newcmd.append("--command=\"%s\"" % " ".join(args))
v1_deprecation_warning("ssh", newcmd)
api = make_client(cluster_name)
resp = api.query(api.build_query(role, name, set([int(shard)]), env=env))
check_and_log_response(resp)
if (resp.result.scheduleStatusResult.tasks is None or
len(resp.result.scheduleStatusResult.tasks) == 0):
die("Job %s not found" % job_path)
first_task = resp.result.scheduleStatusResult.tasks[0]
remote_cmd = 'bash' if not args else ' '.join(args)
command = DistributedCommandRunner.substitute(remote_cmd, first_task,
api.cluster, executor_sandbox=options.executor_sandbox)
ssh_command = ['ssh', '-t']
role = first_task.assignedTask.task.owner.role
slave_host = first_task.assignedTask.slaveHost
for tunnel in options.tunnels:
try:
port, name = tunnel.split(':')
port = int(port)
except ValueError:
die('Could not parse tunnel: %s. Must be of form PORT:NAME' % tunnel)
if name not in first_task.assignedTask.assignedPorts:
die('Task %s has no port named %s' % (first_task.assignedTask.taskId, name))
ssh_command += [
'-L', '%d:%s:%d' % (port, slave_host, first_task.assignedTask.assignedPorts[name])]
ssh_command += ['%s@%s' % (options.ssh_user or role, slave_host), command]
return subprocess.call(ssh_command)
def wait_kill_tasks(scheduler, job_key, instances=None):
monitor = JobMonitor(scheduler, job_key)
if not monitor.wait_until(
monitor.terminal, instances=instances, with_timeout=True):
die('Tasks were not killed in time.')
def test_die(self, mock_log, mock_sys_exit):
msg = 'fatal message'
out = base.die(msg)
self.assertIsNone(out)
mock_sys_exit.assert_called_once_with(1)
mock_log.assert_called_once_with(msg)
def _validate_health_check_config(config):
# TODO(Sathya): Remove this check after health_check_interval_secs deprecation cycle is complete.
if config.raw().has_health_check_interval_secs() and config.raw(
).has_health_check_config():
die(HEALTH_CHECK_INTERVAL_SECS_ERROR)
def diff(job_spec, config_file):
"""usage: diff cluster/role/env/job config
Compares a job configuration against a running job.
By default the diff will be displayed using 'diff', though you may choose an alternate
diff program by specifying the DIFF_VIEWER environment variable."""
options = app.get_options()
newcmd = ["job", "diff", job_spec, config_file]
if options.json:
newcmd.append("--read-json")
v1_deprecation_warning("diff", newcmd)
config = get_job_config(job_spec, config_file, options)
if options.rename_from:
cluster, role, env, name = options.rename_from
else:
cluster = config.cluster()
role = config.role()
env = config.environment()
name = config.name()
api = make_client(cluster)
resp = api.query(
api.build_query(role, name, statuses=ACTIVE_STATES, env=env))
if resp.responseCode != ResponseCode.OK:
die('Request failed, server responded with "%s"' %
resp.messageDEPRECATED)
remote_tasks = [
t.assignedTask.task for t in resp.result.scheduleStatusResult.tasks
]
resp = api.populate_job_config(config)
if resp.responseCode != ResponseCode.OK:
die('Request failed, server responded with "%s"' %
resp.messageDEPRECATED)
local_tasks = resp.result.populateJobResult.populatedDEPRECATED
pp = pprint.PrettyPrinter(indent=2)
def pretty_print_task(task):
# The raw configuration is not interesting - we only care about what gets parsed.
task.configuration = None
task.executorConfig = ExecutorConfig(name=AURORA_EXECUTOR_NAME,
data=json.loads(
task.executorConfig.data))
return pp.pformat(vars(task))
def pretty_print_tasks(tasks):
return ',\n'.join([pretty_print_task(t) for t in tasks])
def dump_tasks(tasks, out_file):
out_file.write(pretty_print_tasks(tasks))
out_file.write('\n')
out_file.flush()
diff_program = os.environ.get('DIFF_VIEWER', 'diff')
with NamedTemporaryFile() as local:
dump_tasks(local_tasks, local)
with NamedTemporaryFile() as remote:
dump_tasks(remote_tasks, remote)
result = subprocess.call([diff_program, remote.name, local.name])
# Unlike most commands, diff doesn't return zero on success; it returns
# 1 when a successful diff is non-empty.
if result != 0 and result != 1:
return result
else:
return 0