def rebalance(runner):
# find out about the cluster.
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
#stop list
target_host_ids = []
targets = []
if runner.opts.stoplist:
targets = runner.opts.stoplist.split(',')
for host in targets:
target = hosts.get_host(host)
if target == None:
runner.abort('Host not found in cluster: %s' % host)
else:
target_host_ids.append(str(target.id))
# Connect to an arbitrary host that isn't being stopped.
chost = hosts.get_connection_host(targets)
if chost is None:
runner.abort(
'Could not find a host other than the hosts to be stoppted.in cluster: %s'
% runner.opts.target_host)
user_info = ''
if runner.opts.username:
user_info = ', user: %s' % runner.opts.username
runner.info('Connecting to %s:%d%s (%s) to issue "rebalance" command' %
(chost.get_admininterface(), chost.adminport, user_info,
chost.hostname))
#set up connections
runner.voltdb_connect(chost.get_admininterface(), chost.adminport,
runner.opts.username, runner.opts.password)
json_opts = ['command:"rebalance"']
if target_host_ids:
stoplist = 'hosts:%s' % ("-".join(target_host_ids))
json_opts.append(stoplist)
if runner.opts.kfactor:
json_opts.append('kfactor:%s' % (runner.opts.kfactor))
if runner.opts.hostcount:
json_opts.append('hostcount:%s' % (runner.opts.hostcount))
if not runner.opts.dryrun:
response = runner.call_proc('@Rebalance',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['{%s}' % (','.join(json_opts))])
print response
def resize(runner):
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(*tuple)
# get current version and root directory from an arbitrary node
host = next(iter(hosts.hosts_by_id.values()))
# check the version of target cluster to make it work properly.
version = host.version
versionStr = version.split('.')
majorVersion = int(versionStr[0])
minorVersion = int(versionStr[1])
if "license" not in host:
runner.abort('Elastic resize only available for enterprise edition.')
if majorVersion < RELEASE_MAJOR_VERSION or (
majorVersion == RELEASE_MAJOR_VERSION
and minorVersion < RELEASE_MINOR_VERSION):
runner.abort('The version of targeting cluster is ' + version +
' which is lower than version ' +
str(RELEASE_MAJOR_VERSION) + '.' +
str(RELEASE_MINOR_VERSION) +
' for supporting elastic resize.')
# Convert shutdown delay input of minutes to millis
shutdown_delay = runner.opts.shutdown_delay * 60000 if runner.opts.shutdown_delay > 0 else -1
option = runner.opts.opt
result = runner.call_proc('@ElasticRemoveNT', [
VOLT.FastSerializer.VOLTTYPE_TINYINT,
VOLT.FastSerializer.VOLTTYPE_STRING,
VOLT.FastSerializer.VOLTTYPE_STRING,
VOLT.FastSerializer.VOLTTYPE_BIGINT
], [option, '', ','.join(runner.opts.skip_requirements), shutdown_delay
]).table(0)
status = result.tuple(0).column_integer(0)
message = result.tuple(0).column_string(1)
if option in (Option.TEST, Option.START) and "host ids:" in message:
host_names = ', '.join([
hostIdsToNames(id, hosts) for id in re.search(
'host ids: \[(.+?)\]', message).group(1).split(',')
])
if option == Option.TEST:
message = "Hosts will be removed: [" + host_names + "], " + message
elif option == Option.START:
message = "Starting cluster resize: Removing hosts: [" + host_names + "], " + message
if status == 0:
runner.info(message)
else:
runner.error(message)
sys.exit(1)
def basicCheck(runner):
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# get current version and root directory from an arbitrary node
host = hosts.hosts_by_id.itervalues().next()
fullClusterSize = int(host.fullclustersize)
if len(hosts.hosts_by_id) < fullClusterSize:
runner.abort(
"Current cluster needs %d more node(s) to achieve full K-safety. In-service upgrade is not recommended in partial K-safety cluster."
% (fullClusterSize - len(hosts.hosts_by_id)))
if fullClusterSize % 2 == 1 and runner.opts.newNode is None:
runner.abort(
"The cluster has odd number of nodes, plan_upgrade needs an extra node to generate the instructions"
)
host = hosts.hosts_by_id.itervalues().next()
currentVersion = host.version
currentVoltDBRoot = host.voltdbroot
currentDeployment = host.deployment
xmlroot = ElementTree.parse(currentDeployment).getroot()
cluster = xmlroot.find("./cluster")
if cluster is None:
runner.abort("Couldn't find cluster tag in current deployment file")
kfactor_tag = cluster.get('kfactor')
if kfactor_tag is None:
kfactor = 0
else:
kfactor = int(kfactor_tag)
# sanity check, in case of nodes number or K-factor is less than required
# K = 0, abort with error message
if kfactor == 0:
runner.abort(
"Current cluster doesn't have duplicate partitions to perform in-service upgrade. K-factor: %d"
% kfactor)
# N = 1, abort with error message
if fullClusterSize == 1:
runner.abort(
"Current cluster doesn't have enough node to perform in-service upgrade, at least two nodes are required"
)
return hosts, kfactor
def stop(runner):
# Exec @SystemInformation to find out about the cluster.
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# Connect to an arbitrary host that isn't being stopped.
defaultport = 3021
min_hosts = 1
max_hosts = 1
target_host = utility.parse_hosts(runner.opts.target_host, min_hosts,
max_hosts, defaultport)[0]
(thost,
chost) = hosts.get_target_and_connection_host(target_host.host,
target_host.port)
if thost is None:
runner.abort('Host not found in cluster: %s:%d' %
(target_host.host, target_host.port))
if chost is None:
runner.abort(
'The entire cluster is being stopped, use "shutdown" instead.')
if runner.opts.username:
user_info = ', user: %s' % runner.opts.username
else:
user_info = ''
runner.info('Connecting to %s:%d%s (%s) to issue "stop" command' %
(chost.get_admininterface(), chost.adminport, user_info,
chost.hostname))
runner.voltdb_connect(chost.get_admininterface(), chost.adminport,
runner.opts.username, runner.opts.password,
runner.opts.ssl_config, runner.opts.kerberos)
# Stop the requested host using exec @StopNode HOST_ID
runner.info('Stopping host %d: %s:%s' %
(thost.id, thost.hostname, thost.internalport))
if not runner.opts.dryrun:
response = runner.call_proc('@StopNode',
[VOLT.FastSerializer.VOLTTYPE_INTEGER],
[thost.id],
check_status=False)
print response
if response.status() != 1: # not SUCCESS
sys.exit(1)
def findTargetHsId(runner):
# Exec @SystemInformation to find out about the cluster.
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# Connect to an arbitrary host that isn't being stopped.
defaultport = 3021
min_hosts = 1
max_hosts = 1
target_host = utility.parse_hosts(runner.opts.target_host, min_hosts, max_hosts, defaultport)[0]
(thost, chost) = hosts.get_target_and_connection_host(target_host.host, target_host.port)
if thost is None:
runner.abort('Host not found in cluster: %s:%d' % (target_host.host, target_host.port))
return thost.id
def getOwnClusterId(runner):
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# get current version and root directory from an arbitrary node
host = hosts.hosts_by_id.itervalues().next()
# ClusterId in @SystemInformation is added in v7.2, so must check the version of target cluster to make it work properly.
version = host.version
versionStr = version.split('.')
majorVersion = int(versionStr[0])
minorVersion = int(versionStr[1])
if majorVersion < RELEASE_MAJOR_VERSION or (majorVersion == RELEASE_MAJOR_VERSION and minorVersion < RELEASE_MINOR_VERSION):
return -1
return int(host.clusterid)
def procedureCaller(runner, type):
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# get current version and root directory from an arbitrary node
host = hosts.hosts_by_id.itervalues().next()
# check the version of target cluster to make it work properly.
version = host.version
versionStr = version.split('.')
majorVersion = int(versionStr[0])
minorVersion = int(versionStr[1])
if majorVersion < RELEASE_MAJOR_VERSION or (
majorVersion == RELEASE_MAJOR_VERSION
and minorVersion < RELEASE_MINOR_VERSION):
runner.abort('The version of targeting cluster is ' + version +
' which is lower than version ' +
str(RELEASE_MAJOR_VERSION) + '.' +
str(RELEASE_MINOR_VERSION) +
' for supporting elastic resize.')
result = runner.call_proc('@ElasticRemoveNT', [
VOLT.FastSerializer.VOLTTYPE_TINYINT,
VOLT.FastSerializer.VOLTTYPE_STRING,
VOLT.FastSerializer.VOLTTYPE_STRING
], [type, '', ','.join(runner.opts.skip_requirements)]).table(0)
status = result.tuple(0).column_integer(0)
message = result.tuple(0).column_string(1)
if status == 0:
runner.info(message)
else:
runner.error(message)
sys.exit(1)
def getClusterInfo(runner, available_hosts, clearHostCache):
# raise execption when failed to connect
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'],
True, None, True)
if response.response.status != 1:
return None;
if clearHostCache:
available_hosts[:] = []
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
for hostId, hostInfo in hosts.hosts_by_id.items():
if hostInfo.hostname not in available_hosts:
available_hosts.append(hostInfo.hostname + ":" + str(hostInfo.clientport))
# get current version and root directory from an arbitrary node
host = hosts.hosts_by_id.itervalues().next()
# ClusterId in @SystemInformation is added in v7.2, so must check the version of target cluster to make it work properly.
version = host.version
versionStr = version.split('.')
majorVersion = int(versionStr[0])
minorVersion = int(versionStr[1])
if majorVersion < RELEASE_MAJOR_VERSION or (majorVersion == RELEASE_MAJOR_VERSION and minorVersion < RELEASE_MINOR_VERSION):
runner.abort("Only v7.2 or higher version of VoltDB supports this command. Target cluster running on v" + version + ".")
clusterId = host.clusterid
fullClusterSize = int(host.fullclustersize)
uptime = host.uptime
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['DEPLOYMENT'],
True, None, True)
for tuple in response.table(0).tuples():
if tuple[0] == 'kfactor':
kfactor = tuple[1]
break
cluster = Cluster(int(clusterId), version, int(kfactor), int(fullClusterSize), uptime)
for hostId, hostInfo in hosts.hosts_by_id.items():
cluster.add_member(hostId, hostInfo.hostname)
# number of live clients connect to the cluster
try:
response = checkstats.get_stats(runner, "LIVECLIENTS")
except StatisticsProcedureException as e:
runner.info(e.message)
sys.exit(e.exitCode)
liveclients = 0
for tuple in response.table(0).tuples():
isAdmin = tuple[5]
# exclude admin connections
if isAdmin != 1:
liveclients += 1
cluster.update_live_clients(liveclients)
if runner.opts.dr:
# Do we have any ongoing DR conversation?
try:
response = checkstats.get_stats(runner, "DRROLE")
except StatisticsProcedureException as e:
runner.info(e.message)
sys.exit(e.exitCode)
for tuple in response.table(0).tuples():
role = tuple[0]
status = tuple[1]
remote_cluster_id = tuple[2]
if (remote_cluster_id != -1):
cluster.add_remote_cluster(remote_cluster_id, status, role)
try:
response = checkstats.get_stats(runner, "DRPRODUCER")
except StatisticsProcedureException as e:
runner.info(e.message)
sys.exit(e.exitCode)
for tuple in response.table(0).tuples():
host_name = tuple[2]
remote_cluster_id = tuple[4]
last_queued_drid = tuple[10]
last_queued_ts = tuple[12]
last_acked_ts = tuple[13]
if last_queued_drid == -1:
delay = 0
else:
delay = (last_queued_ts - last_acked_ts).total_seconds()
cluster.get_remote_cluster(remote_cluster_id).update_producer_latency(host_name, remote_cluster_id, delay)
# Find remote topology through drconsumer stats
try:
response = checkstats.get_stats(runner, "DRCONSUMER")
except StatisticsProcedureException as e:
runner.info(e.message)
sys.exit(e.exitCode)
for tuple in response.table(1).tuples():
remote_cluster_id = tuple[4]
covering_host = tuple[7]
last_applied_ts = tuple[9]
if covering_host != '':
cluster.get_remote_cluster(remote_cluster_id).add_remote_member(covering_host)
return cluster
def basicCheck(runner):
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# get current version and root directory from an arbitrary node
host = next(iter(hosts.hosts_by_id.values()))
fullClusterSize = int(host.fullclustersize)
if len(hosts.hosts_by_id) < fullClusterSize:
delta = fullClusterSize - len(hosts.hosts_by_id)
runner.abort(
"Current cluster needs %d more node%s to achieve full K-safety. Online upgrade is not supported in partial K-safety cluster."
% (delta, "" if delta == 1 else "s"))
if fullClusterSize % 2 == 1 and runner.opts.newNode is None:
runner.abort(
"The cluster has odd number of nodes, plan_upgrade needs an extra node to generate the instructions"
)
if fullClusterSize % 2 == 0 and runner.opts.newNode is not None:
runner.abort(
"For even-numbered cluster, 2 parameters are expected (received 3)."
)
if runner.opts.newNode is not None:
result = checkNewNode(runner.opts.newNode)
if result is not None:
runner.abort("Failed to resolve host {0}:{1}.".format(
runner.opts.newNode, result))
host = next(iter(hosts.hosts_by_id.values()))
currentVersion = host.version
# get k-factor from @SystemInformation
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['DEPLOYMENT'])
for tuple in response.table(0).tuples():
if tuple[0] == 'kfactor':
kfactor = tuple[1]
break
# sanity check, in case of nodes number or K-factor is less than required
# K = 0, abort with error message
if kfactor == 0:
runner.abort(
"Current cluster doesn't have duplicate partitions to perform online upgrade. K-factor: %d"
% kfactor)
# N = 1, abort with error message
if fullClusterSize == 1:
runner.abort(
"Current cluster doesn't have enough nodes to perform online upgrade, at least two nodes are required"
)
response = checkstats.get_stats(runner, "DRROLE")
clusterIds = []
clusterIds.append(int(host.clusterid)) # add local cluster id first
for tuple in response.table(0).tuples():
remote_cluster_id = tuple[2]
if remote_cluster_id != -1:
clusterIds.append(
remote_cluster_id) # add remote cluster id if exists
if len(clusterIds) == 127:
runner.abort(
"Failed to generate upgrade plan: number of connected cluster reaches the maximum limit (127)."
)
# Check the existence of voltdb root path and new kit on all the existing nodes
response = runner.call_proc('@CheckUpgradePlanNT', [
VOLT.FastSerializer.VOLTTYPE_STRING,
VOLT.FastSerializer.VOLTTYPE_STRING
], [runner.opts.newKit, runner.opts.newRoot])
error = False
warnings = ""
for tuple in response.table(0).tuples():
hostId = tuple[0]
result = tuple[1]
warning = tuple[2]
if result != 'Success':
error = True
host = hosts.hosts_by_id[hostId]
if host is None:
runner.abort('@CheckUpgradePlanNT returns a host id ' +
hostId + " that doesn't belong to the cluster.")
runner.error('Check failed on host ' + getHostnameOrIp(host) +
" with the cause: " + result)
if warning is not None:
host = hosts.hosts_by_id[hostId]
if host is None:
runner.abort('@CheckUpgradePlanNT returns a host id ' +
hostId + " that doesn't belong to the cluster.")
warnings += 'On host ' + getHostnameOrIp(
host) + ': \n' + warning + '\n'
if error:
runner.abort("Failed to pass pre-upgrade check. Abort. ")
if warnings != "":
runner.warning(warnings[:-1]) # get rid of last '\n'
print('[1/4] Passed new VoltDB kit version check.')
print('[2/4] Passed new VoltDB root path existence check.')
return hosts, kfactor, clusterIds
def stop(runner):
# Exec @SystemInformation to find out about the cluster.
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# Connect to an arbitrary host that isn't being stopped.
defaultport = 3021
min_hosts = 1
max_hosts = 1
target_host = utility.parse_hosts(runner.opts.target_host, min_hosts,
max_hosts, defaultport)[0]
(thost,
chost) = hosts.get_target_and_connection_host(target_host.host,
target_host.port)
if thost is None:
runner.abort('Host not found in cluster: %s:%d' %
(target_host.host, target_host.port))
if chost is None:
runner.abort(
'The entire cluster is being stopped, use "shutdown" instead.')
if runner.opts.username:
user_info = ', user: %s' % runner.opts.username
else:
user_info = ''
runner.info('Connecting to %s:%d%s (%s) to issue "stop" command' %
(chost.get_admininterface(), chost.adminport, user_info,
chost.hostname))
runner.voltdb_connect(chost.get_admininterface(), chost.adminport,
runner.opts.username, runner.opts.password,
runner.opts.ssl_config, runner.opts.kerberos)
if not runner.opts.forcing:
stateMessage = 'The node shutdown process has stopped.'
actionMessage = 'You may shutdown the node with the "voltadmin stop --force" command.'
try:
runner.info('Preparing for stopping node.')
resp = runner.call_proc('@PrepareStopNode',
[VOLT.FastSerializer.VOLTTYPE_INTEGER],
[thost.id],
check_status=False)
if resp.status() != 1:
runner.abort(
'The preparation for node shutdown failed with status: %s'
% resp.response.statusString)
# monitor partition leader migration
runner.info(
'Completing partition leader migration away from host %d: %s' %
(thost.id, thost.hostname))
checkstats.check_partition_leaders_on_host(runner, thost.id)
runner.info('All partition leaders have been migrated.')
# monitor export master transfer, but don't fail on timeout: target may have been
# disabled, preventing transfer. In that case it's ok to proceed with the stop
try:
runner.info(
'Completing export master transfer away from host %d: %s' %
(thost.id, thost.hostname))
checkstats.check_export_mastership_on_host(runner, thost.id)
runner.info('All export masters have been transferred')
except StatisticsProcedureException as proex:
if not proex.isTimeout:
raise
runner.info(proex.message)
runner.info(
'This may be caused by an export target either disabled or removed from the configuration. No action is required; the stop node process will proceed.'
)
except StatisticsProcedureException as proex:
runner.info(stateMessage)
runner.error(proex.message)
if proex.isTimeout:
runner.info(actionMessage)
sys.exit(proex.exitCode)
except (KeyboardInterrupt, SystemExit):
runner.info(stateMessage)
runner.abort(actionMessage)
# Stop the requested host using exec @StopNode HOST_ID
runner.info('Stopping host %d: %s:%s' %
(thost.id, thost.hostname, thost.internalport))
if not runner.opts.dryrun:
response = runner.call_proc('@StopNode',
[VOLT.FastSerializer.VOLTTYPE_INTEGER],
[thost.id],
check_status=False)
print response
if response.status() != 1: # not SUCCESS
sys.exit(1)
def shutdown(runner):
if runner.opts.forcing and runner.opts.save:
runner.abort_with_help(
'You cannot specify both --force and --save options.')
if runner.opts.cancel and runner.opts.save:
runner.abort_with_help(
'You cannot specify both --cancel and --save options.')
if runner.opts.cancel and runner.opts.forcing:
runner.abort_with_help(
'You cannot specify both --cancel and --force options.')
if runner.opts.timeout <= 0:
runner.abort_with_help(
'The timeout value must be more than zero seconds.')
shutdown_params = []
columns = []
zk_pause_txnid = 0
if runner.opts.cancel:
runner.info('Canceling cluster shutdown ...')
response = runner.call_proc('@CancelShutdown', [], [])
if response.status() != 1:
runner.abort('Cancel shutdown failed with status: %d' %
resp.response.statusString)
else:
runner.info('Shutdown canceled.')
else:
runner.info('Cluster shutdown in progress.')
if not runner.opts.forcing:
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(*tuple)
host = hosts.hosts_by_id.itervalues().next()
if host.get('clustersafety') == "REDUCED":
runner.info(
'Since cluster is in reduced k safety mode, taking a final snapshot before shutdown.'
)
runner.opts.save = True
stateMessage = 'The cluster shutdown process has stopped. The cluster is still in a paused state.'
actionMessage = 'You may shutdown the cluster with the "voltadmin shutdown --force" command, '\
+ 'continue to wait with "voltadmin shutdown",\n'\
+ 'or cancel the shutdown with the "voltadmin shutdown --cancel" command'
try:
runner.info('Preparing for shutdown...')
resp = runner.call_proc('@PrepareShutdown', [], [])
if resp.status() != 1:
runner.abort(
'The preparation for shutdown failed with status: %d' %
resp.response.statusString)
zk_pause_txnid = resp.table(0).tuple(0).column_integer(0)
runner.info('The cluster is paused prior to shutdown.')
runner.info('Writing out all queued export data...')
status = runner.call_proc(
'@Quiesce', [], []).table(0).tuple(0).column_integer(0)
if status <> 0:
runner.abort(
'The cluster has failed to be quiesce with status: %d'
% status)
checkstats.check_clients(runner)
checkstats.check_importer(runner)
# Checking command log regardless of whether we're community or enterprise
checkstats.check_command_log(runner)
runner.info(
'If running Enterprise Edition, all transactions have been made durable.'
)
if runner.opts.save:
actionMessage = 'You may shutdown the cluster with the "voltadmin shutdown --force" command, '\
+ 'continue to wait with "voltadmin shutdown --save",\n'\
+ 'or cancel the shutdown with the "voltadmin shutdown --cancel" command.'
columns = [VOLT.FastSerializer.VOLTTYPE_BIGINT]
shutdown_params = [zk_pause_txnid]
# save option, check more stats
checkstats.check_dr_consumer(runner)
runner.info(
'Starting resolution of external commitments...')
checkstats.check_exporter(runner)
status = runner.call_proc(
'@Quiesce', [], []).table(0).tuple(0).column_integer(0)
if status <> 0:
runner.abort(
'The cluster has failed to quiesce with status: %d'
% status)
checkstats.check_dr_producer(runner)
runner.info(
'Saving a final snapshot, The cluster will shutdown after the snapshot is finished...'
)
else:
checkstats.check_exporter(runner)
runner.info('Shutting down the cluster...')
except StatisticsProcedureException as proex:
runner.info(stateMessage)
runner.error(proex.message)
if proex.isTimeout:
runner.info(actionMessage)
sys.exit(proex.exitCode)
except (KeyboardInterrupt, SystemExit):
runner.info(stateMessage)
runner.abort(actionMessage)
response = runner.call_proc('@Shutdown',
columns,
shutdown_params,
check_status=False)
print response
def basicCheck(runner):
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# get current version and root directory from an arbitrary node
host = hosts.hosts_by_id.itervalues().next()
fullClusterSize = int(host.fullclustersize)
if len(hosts.hosts_by_id) < fullClusterSize:
runner.abort(
"Current cluster needs %d more node(s) to achieve full K-safety. In-service upgrade is not recommended in partial K-safety cluster."
% (fullClusterSize - len(hosts.hosts_by_id)))
if fullClusterSize % 2 == 1 and runner.opts.newNode is None:
runner.abort(
"The cluster has odd number of nodes, plan_upgrade needs an extra node to generate the instructions"
)
host = hosts.hosts_by_id.itervalues().next()
currentVersion = host.version
# get k-factor from @SystemInformation
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['DEPLOYMENT'])
for tuple in response.table(0).tuples():
if tuple[0] == 'kfactor':
kfactor = tuple[1]
break
# sanity check, in case of nodes number or K-factor is less than required
# K = 0, abort with error message
if kfactor == 0:
runner.abort(
"Current cluster doesn't have duplicate partitions to perform online upgrade. K-factor: %d"
% kfactor)
# N = 1, abort with error message
if fullClusterSize == 1:
runner.abort(
"Current cluster doesn't have enough node to perform online upgrade, at least two nodes are required"
)
response = checkstats.get_stats(runner, "DRROLE")
largestClusterId = -1
for tuple in response.table(0).tuples():
remote_cluster_id = tuple[2]
if remote_cluster_id > largestClusterId:
largestClusterId = remote_cluster_id
# Check the existence of voltdb root path and new kit on all the existing nodes
response = runner.call_proc('@CheckUpgradePlanNT', [
VOLT.FastSerializer.VOLTTYPE_STRING,
VOLT.FastSerializer.VOLTTYPE_STRING
], [runner.opts.newKit, runner.opts.newRoot])
error = False
for tuple in response.table(0).tuples():
hostId = tuple[0]
result = tuple[1]
if result != 'Success':
error = True
host = hosts.hosts_by_id[hostId]
if host is None:
runner.abort('@CheckUpgradePlanNT returns a host id ' +
hostId + " that doesn't belong to the cluster.")
print 'Pre-upgrade check fails on host ' + getHostnameOrIp(
host) + " with the cause: " + result
if error:
runner.abort("Failed to pass pre-upgrade check. Abort. ")
print '[1/4] Passed new VoltDB kit version check.'
print '[2/4] Passed new VoltDB root path existence check.'
return hosts, kfactor, largestClusterId
def getClusterInfo(runner):
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['OVERVIEW'])
# Convert @SystemInformation results to objects.
hosts = Hosts(runner.abort)
for tuple in response.table(0).tuples():
hosts.update(tuple[0], tuple[1], tuple[2])
# get current version and root directory from an arbitrary node
host = hosts.hosts_by_id.itervalues().next()
clusterId = host.clusterid
fullClusterSize = int(host.fullclustersize)
version = host.version
uptime = host.uptime
response = runner.call_proc('@SystemInformation',
[VOLT.FastSerializer.VOLTTYPE_STRING],
['DEPLOYMENT'])
for tuple in response.table(0).tuples():
if tuple[0] == 'kfactor':
kfactor = tuple[1]
break
cluster = Cluster(int(clusterId), version, int(kfactor),
int(fullClusterSize), uptime)
for hostId, hostInfo in hosts.hosts_by_id.items():
cluster.add_member(hostId, hostInfo.hostname)
# number of live clients connect to the cluster
response = checkstats.get_stats(runner, "LIVECLIENTS")
liveclients = 0
for tuple in response.table(0).tuples():
isAdmin = tuple[5]
# exclude admin connections
if isAdmin != 1:
liveclients += 1
cluster.update_live_clients(liveclients)
if runner.opts.dr:
# Do we have any ongoing DR conversation?
response = checkstats.get_stats(runner, "DRROLE")
for tuple in response.table(0).tuples():
role = tuple[0]
status = tuple[1]
remote_cluster_id = tuple[2]
if (remote_cluster_id != -1):
cluster.add_remote_cluster(remote_cluster_id, status, role)
response = checkstats.get_stats(runner, "DRPRODUCER")
for tuple in response.table(0).tuples():
host_name = tuple[2]
remote_cluster_id = tuple[4]
last_queued_drid = tuple[10]
last_queued_ts = tuple[12]
last_acked_ts = tuple[13]
if last_queued_drid == -1:
delay = 0
else:
delay = (last_queued_ts - last_acked_ts).total_seconds()
cluster.get_remote_cluster(
remote_cluster_id).update_producer_latency(
host_name, remote_cluster_id, delay)
# Find remote topology through drconsumer stats
response = checkstats.get_stats(runner, "DRCONSUMER")
for tuple in response.table(1).tuples():
remote_cluster_id = tuple[4]
covering_host = tuple[7]
last_applied_ts = tuple[9]
if covering_host != '':
cluster.get_remote_cluster(
remote_cluster_id).add_remote_member(covering_host)
return cluster