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Alter text of synchronization messages

This commit is contained in:
Joshua Boniface 2020-10-20 13:08:18 -04:00
parent f9e7e9884f
commit 224c8082ef
2 changed files with 88 additions and 88 deletions
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112
node-daemon/pvcnoded/NodeInstance.py
View File

@ -321,30 +321,30 @@ class NodeInstance(object):
# Synchronize nodes A (I am writer) # Synchronize nodes A (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node') lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring write lock for synchronization A', state='i') self.logger.out('Acquiring write lock for synchronization phase A', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization A', state='o') self.logger.out('Acquired write lock for synchronization phase A', state='o')
time.sleep(1) # Time for reader to acquire the lock time.sleep(1) # Time for reader to acquire the lock
self.logger.out('Releasing write lock for synchronization A', state='i') self.logger.out('Releasing write lock for synchronization phase A', state='i')
zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''}) zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
lock.release() lock.release()
self.logger.out('Released write lock for synchronization A', state='o') self.logger.out('Released write lock for synchronization phase A', state='o')
time.sleep(0.1) # Time for new writer to acquire the lock time.sleep(0.1) # Time for new writer to acquire the lock
# Synchronize nodes B (I am reader) # Synchronize nodes B (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node') lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring read lock for synchronization B', state='i') self.logger.out('Acquiring read lock for synchronization phase B', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization B', state='o') self.logger.out('Acquired read lock for synchronization phase B', state='o')
self.logger.out('Releasing read lock for synchronization B', state='i') self.logger.out('Releasing read lock for synchronization phase B', state='i')
lock.release() lock.release()
self.logger.out('Released read lock for synchronization B', state='o') self.logger.out('Released read lock for synchronization phase B', state='o')
# Synchronize nodes C (I am writer) # Synchronize nodes C (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node') lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring write lock for synchronization C', state='i') self.logger.out('Acquiring write lock for synchronization phase C', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization C', state='o') self.logger.out('Acquired write lock for synchronization phase C', state='o')
time.sleep(0.5) # Time for reader to acquire the lock time.sleep(0.5) # Time for reader to acquire the lock
# 1. Add Upstream floating IP # 1. Add Upstream floating IP
self.logger.out( self.logger.out(
@ -356,16 +356,16 @@ class NodeInstance(object):
state='o' state='o'
) )
common.createIPAddress(self.upstream_ipaddr, self.upstream_cidrnetmask, 'brupstream') common.createIPAddress(self.upstream_ipaddr, self.upstream_cidrnetmask, 'brupstream')
self.logger.out('Releasing write lock for synchronization C', state='i') self.logger.out('Releasing write lock for synchronization phase C', state='i')
zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''}) zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
lock.release() lock.release()
self.logger.out('Released write lock for synchronization C', state='o') self.logger.out('Released write lock for synchronization phase C', state='o')
# Synchronize nodes D (I am writer) # Synchronize nodes D (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node') lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring write lock for synchronization D', state='i') self.logger.out('Acquiring write lock for synchronization phase D', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization D', state='o') self.logger.out('Acquired write lock for synchronization phase D', state='o')
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
# 2. Add Cluster floating IP # 2. Add Cluster floating IP
self.logger.out( self.logger.out(
@ -377,16 +377,16 @@ class NodeInstance(object):
state='o' state='o'
) )
common.createIPAddress(self.vni_ipaddr, self.vni_cidrnetmask, 'brcluster') common.createIPAddress(self.vni_ipaddr, self.vni_cidrnetmask, 'brcluster')
self.logger.out('Releasing write lock for synchronization D', state='i') self.logger.out('Releasing write lock for synchronization phase D', state='i')
zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''}) zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
lock.release() lock.release()
self.logger.out('Released write lock for synchronization D', state='o') self.logger.out('Released write lock for synchronization phase D', state='o')
# Synchronize nodes E (I am writer) # Synchronize nodes E (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node') lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring write lock for synchronization E', state='i') self.logger.out('Acquiring write lock for synchronization phase E', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization E', state='o') self.logger.out('Acquired write lock for synchronization phase E', state='o')
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
# 3. Add Metadata link-local IP # 3. Add Metadata link-local IP
self.logger.out( self.logger.out(
@ -398,30 +398,30 @@ class NodeInstance(object):
state='o' state='o'
) )
common.createIPAddress('169.254.169.254', '32', 'lo') common.createIPAddress('169.254.169.254', '32', 'lo')
self.logger.out('Releasing write lock for synchronization E', state='i') self.logger.out('Releasing write lock for synchronization phase E', state='i')
zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''}) zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
lock.release() lock.release()
self.logger.out('Released write lock for synchronization E', state='o') self.logger.out('Released write lock for synchronization phase E', state='o')
# Synchronize nodes F (I am writer) # Synchronize nodes F (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node') lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring write lock for synchronization F', state='i') self.logger.out('Acquiring write lock for synchronization phase F', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization F', state='o') self.logger.out('Acquired write lock for synchronization phase F', state='o')
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
# 4. Add gateway IPs # 4. Add gateway IPs
for network in self.d_network: for network in self.d_network:
self.d_network[network].createGateways() self.d_network[network].createGateways()
self.logger.out('Releasing write lock for synchronization F', state='i') self.logger.out('Releasing write lock for synchronization phase F', state='i')
zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''}) zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
lock.release() lock.release()
self.logger.out('Released write lock for synchronization F', state='o') self.logger.out('Released write lock for synchronization phase F', state='o')
# Synchronize nodes G (I am writer) # Synchronize nodes G (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node') lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring write lock for synchronization G', state='i') self.logger.out('Acquiring write lock for synchronization phase G', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization G', state='o') self.logger.out('Acquired write lock for synchronization phase G', state='o')
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
# 5. Transition Patroni primary # 5. Transition Patroni primary
self.logger.out('Setting Patroni leader to this node', state='i') self.logger.out('Setting Patroni leader to this node', state='i')
@ -484,10 +484,10 @@ class NodeInstance(object):
self.dns_aggregator.start_aggregator() self.dns_aggregator.start_aggregator()
else: else:
self.logger.out('Not starting DNS aggregator due to Patroni failures', state='e') self.logger.out('Not starting DNS aggregator due to Patroni failures', state='e')
self.logger.out('Releasing write lock for synchronization G', state='i') self.logger.out('Releasing write lock for synchronization phase G', state='i')
zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''}) zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
lock.release() lock.release()
self.logger.out('Released write lock for synchronization G', state='o') self.logger.out('Released write lock for synchronization phase G', state='o')
# Wait 2 seconds for everything to stabilize before we declare all-done # Wait 2 seconds for everything to stabilize before we declare all-done
time.sleep(2) time.sleep(2)
@ -503,28 +503,28 @@ class NodeInstance(object):
# Synchronize nodes A (I am reader) # Synchronize nodes A (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node') lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring read lock for synchronization A', state='i') self.logger.out('Acquiring read lock for synchronization phase A', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization A', state='o') self.logger.out('Acquired read lock for synchronization phase A', state='o')
self.logger.out('Releasing read lock for synchronization A', state='i') self.logger.out('Releasing read lock for synchronization phase A', state='i')
lock.release() lock.release()
self.logger.out('Released read lock for synchronization A', state='o') self.logger.out('Released read lock for synchronization phase A', state='o')
# Synchronize nodes B (I am writer) # Synchronize nodes B (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node') lock = zkhandler.writelock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring write lock for synchronization B', state='i') self.logger.out('Acquiring write lock for synchronization phase B', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization B', state='o') self.logger.out('Acquired write lock for synchronization phase B', state='o')
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
# 1. Stop DNS aggregator # 1. Stop DNS aggregator
self.dns_aggregator.stop_aggregator() self.dns_aggregator.stop_aggregator()
# 2. Stop DHCP servers # 2. Stop DHCP servers
for network in self.d_network: for network in self.d_network:
self.d_network[network].stopDHCPServer() self.d_network[network].stopDHCPServer()
self.logger.out('Releasing write lock for synchronization B', state='i') self.logger.out('Releasing write lock for synchronization phase B', state='i')
zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''}) zkhandler.writedata(self.zk_conn, {'/locks/primary_node': ''})
lock.release() lock.release()
self.logger.out('Released write lock for synchronization B', state='o') self.logger.out('Released write lock for synchronization phase B', state='o')
# 3. Stop client API # 3. Stop client API
if self.config['enable_api']: if self.config['enable_api']:
self.logger.out('Stopping PVC API client service', state='i') self.logger.out('Stopping PVC API client service', state='i')
@ -535,9 +535,9 @@ class NodeInstance(object):
# Synchronize nodes C (I am reader) # Synchronize nodes C (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node') lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring read lock for synchronization C', state='i') self.logger.out('Acquiring read lock for synchronization phase C', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization C', state='o') self.logger.out('Acquired read lock for synchronization phase C', state='o')
# 5. Remove Upstream floating IP # 5. Remove Upstream floating IP
self.logger.out( self.logger.out(
'Removing floating upstream IP {}/{} from interface {}'.format( 'Removing floating upstream IP {}/{} from interface {}'.format(
@ -548,15 +548,15 @@ class NodeInstance(object):
state='o' state='o'
) )
common.removeIPAddress(self.upstream_ipaddr, self.upstream_cidrnetmask, 'brupstream') common.removeIPAddress(self.upstream_ipaddr, self.upstream_cidrnetmask, 'brupstream')
self.logger.out('Releasing read lock for synchronization C', state='i') self.logger.out('Releasing read lock for synchronization phase C', state='i')
lock.release() lock.release()
self.logger.out('Released read lock for synchronization C', state='o') self.logger.out('Released read lock for synchronization phase C', state='o')
# Synchronize nodes D (I am reader) # Synchronize nodes D (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node') lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring read lock for synchronization D', state='i') self.logger.out('Acquiring read lock for synchronization phase D', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization D', state='o') self.logger.out('Acquired read lock for synchronization phase D', state='o')
# 6. Remove Cluster floating IP # 6. Remove Cluster floating IP
self.logger.out( self.logger.out(
'Removing floating management IP {}/{} from interface {}'.format( 'Removing floating management IP {}/{} from interface {}'.format(
@ -567,15 +567,15 @@ class NodeInstance(object):
state='o' state='o'
) )
common.removeIPAddress(self.vni_ipaddr, self.vni_cidrnetmask, 'brcluster') common.removeIPAddress(self.vni_ipaddr, self.vni_cidrnetmask, 'brcluster')
self.logger.out('Releasing read lock for synchronization D', state='i') self.logger.out('Releasing read lock for synchronization phase D', state='i')
lock.release() lock.release()
self.logger.out('Released read lock for synchronization D', state='o') self.logger.out('Released read lock for synchronization phase D', state='o')
# Synchronize nodes E (I am reader) # Synchronize nodes E (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node') lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring read lock for synchronization E', state='i') self.logger.out('Acquiring read lock for synchronization phase E', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization E', state='o') self.logger.out('Acquired read lock for synchronization phase E', state='o')
# 7. Remove Metadata link-local IP # 7. Remove Metadata link-local IP
self.logger.out( self.logger.out(
'Removing Metadata link-local IP {}/{} from interface {}'.format( 'Removing Metadata link-local IP {}/{} from interface {}'.format(
@ -586,33 +586,33 @@ class NodeInstance(object):
state='o' state='o'
) )
common.removeIPAddress('169.254.169.254', '32', 'lo') common.removeIPAddress('169.254.169.254', '32', 'lo')
self.logger.out('Releasing read lock for synchronization E', state='i') self.logger.out('Releasing read lock for synchronization phase E', state='i')
lock.release() lock.release()
self.logger.out('Released read lock for synchronization E', state='o') self.logger.out('Released read lock for synchronization phase E', state='o')
# Synchronize nodes F (I am reader) # Synchronize nodes F (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node') lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring read lock for synchronization F', state='i') self.logger.out('Acquiring read lock for synchronization phase F', state='i')
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization F', state='o') self.logger.out('Acquired read lock for synchronization phase F', state='o')
# 8. Remove gateway IPs # 8. Remove gateway IPs
for network in self.d_network: for network in self.d_network:
self.d_network[network].removeGateways() self.d_network[network].removeGateways()
self.logger.out('Releasing read lock for synchronization F', state='i') self.logger.out('Releasing read lock for synchronization phase F', state='i')
lock.release() lock.release()
self.logger.out('Released read lock for synchronization F', state='o') self.logger.out('Released read lock for synchronization phase F', state='o')
# Synchronize nodes G (I am reader) # Synchronize nodes G (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node') lock = zkhandler.readlock(self.zk_conn, '/locks/primary_node')
self.logger.out('Acquiring read lock for synchronization G', state='i') self.logger.out('Acquiring read lock for synchronization phase G', state='i')
try: try:
lock.acquire(timeout=60) # Don't wait forever and completely block us lock.acquire(timeout=60) # Don't wait forever and completely block us
self.logger.out('Acquired read lock for synchronization G', state='o') self.logger.out('Acquired read lock for synchronization phase G', state='o')
except: except:
pass pass
self.logger.out('Releasing read lock for synchronization G', state='i') self.logger.out('Releasing read lock for synchronization phase G', state='i')
lock.release() lock.release()
self.logger.out('Released read lock for synchronization G', state='o') self.logger.out('Released read lock for synchronization phase G', state='o')
# Wait 2 seconds for everything to stabilize before we declare all-done # Wait 2 seconds for everything to stabilize before we declare all-done
time.sleep(2) time.sleep(2)

64
node-daemon/pvcnoded/VMInstance.py
View File

@ -365,18 +365,18 @@ class VMInstance(object):
# Synchronize nodes A (I am reader) # Synchronize nodes A (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring read lock for synchronization A', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring read lock for synchronization phase A', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization A', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired read lock for synchronization phase A', state='o', prefix='Domain {}'.format(self.domuuid))
self.logger.out('Releasing read lock for synchronization A', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing read lock for synchronization phase A', state='i', prefix='Domain {}'.format(self.domuuid))
lock.release() lock.release()
self.logger.out('Released read lock for synchronization A', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Released read lock for synchronization phase A', state='o', prefix='Domain {}'.format(self.domuuid))
# Synchronize nodes B (I am writer) # Synchronize nodes B (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring write lock for synchronization B', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring write lock for synchronization phase B', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization B', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired write lock for synchronization phase B', state='o', prefix='Domain {}'.format(self.domuuid))
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
def migrate_live(): def migrate_live():
@ -432,34 +432,34 @@ class VMInstance(object):
else: else:
do_migrate_shutdown = True do_migrate_shutdown = True
self.logger.out('Releasing write lock for synchronization B', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing write lock for synchronization phase B', state='i', prefix='Domain {}'.format(self.domuuid))
zkhandler.writedata(self.zk_conn, { '/locks/primary_node': self.domuuid }) zkhandler.writedata(self.zk_conn, { '/locks/primary_node': self.domuuid })
lock.release() lock.release()
self.logger.out('Released write lock for synchronization B', state='o') self.logger.out('Released write lock for synchronization phase B', state='o')
# Synchronize nodes C (I am writer) # Synchronize nodes C (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring write lock for synchronization C', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring write lock for synchronization phase C', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization C', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired write lock for synchronization phase C', state='o', prefix='Domain {}'.format(self.domuuid))
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
if do_migrate_shutdown: if do_migrate_shutdown:
migrate_shutdown_result = migrate_live() migrate_shutdown_result = migrate_live()
self.logger.out('Releasing write lock for synchronization C', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing write lock for synchronization phase C', state='i', prefix='Domain {}'.format(self.domuuid))
zkhandler.writedata(self.zk_conn, { '/locks/primary_node': self.domuuid }) zkhandler.writedata(self.zk_conn, { '/locks/primary_node': self.domuuid })
lock.release() lock.release()
self.logger.out('Released write lock for synchronization C', state='o') self.logger.out('Released write lock for synchronization phase C', state='o')
# Synchronize nodes D (I am reader) # Synchronize nodes D (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring read lock for synchronization D', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring read lock for synchronization phase D', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization D', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired read lock for synchronization phase D', state='o', prefix='Domain {}'.format(self.domuuid))
self.logger.out('Releasing read lock for synchronization D', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing read lock for synchronization phase D', state='i', prefix='Domain {}'.format(self.domuuid))
lock.release() lock.release()
self.logger.out('Released read lock for synchronization D', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Released read lock for synchronization phase D', state='o', prefix='Domain {}'.format(self.domuuid))
# Wait 0.5 seconds for everything to stabilize before we declare all-done # Wait 0.5 seconds for everything to stabilize before we declare all-done
time.sleep(0.5) time.sleep(0.5)
@ -479,39 +479,39 @@ class VMInstance(object):
# Synchronize nodes A (I am writer) # Synchronize nodes A (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring write lock for synchronization A', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring write lock for synchronization phase A', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization A', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired write lock for synchronization phase A', state='o', prefix='Domain {}'.format(self.domuuid))
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
self.logger.out('Releasing write lock for synchronization A', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing write lock for synchronization phase A', state='i', prefix='Domain {}'.format(self.domuuid))
zkhandler.writedata(self.zk_conn, { '/locks/domain_migrate': self.domuuid }) zkhandler.writedata(self.zk_conn, { '/locks/domain_migrate': self.domuuid })
lock.release() lock.release()
self.logger.out('Released write lock for synchronization A', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Released write lock for synchronization phase A', state='o', prefix='Domain {}'.format(self.domuuid))
time.sleep(0.1) # Time for new writer to acquire the lock time.sleep(0.1) # Time for new writer to acquire the lock
# Synchronize nodes B (I am reader) # Synchronize nodes B (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring read lock for synchronization B', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring read lock for synchronization phase B', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization B', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired read lock for synchronization phase B', state='o', prefix='Domain {}'.format(self.domuuid))
self.logger.out('Releasing read lock for synchronization B', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing read lock for synchronization phase B', state='i', prefix='Domain {}'.format(self.domuuid))
lock.release() lock.release()
self.logger.out('Released read lock for synchronization B', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Released read lock for synchronization phase B', state='o', prefix='Domain {}'.format(self.domuuid))
# Synchronize nodes C (I am reader) # Synchronize nodes C (I am reader)
lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.readlock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring read lock for synchronization C', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring read lock for synchronization phase C', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired read lock for synchronization C', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired read lock for synchronization phase C', state='o', prefix='Domain {}'.format(self.domuuid))
self.logger.out('Releasing read lock for synchronization C', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing read lock for synchronization phase C', state='i', prefix='Domain {}'.format(self.domuuid))
lock.release() lock.release()
self.logger.out('Released read lock for synchronization C', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Released read lock for synchronization phase C', state='o', prefix='Domain {}'.format(self.domuuid))
# Synchronize nodes D (I am writer) # Synchronize nodes D (I am writer)
lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate') lock = zkhandler.writelock(self.zk_conn, '/locks/domain_migrate')
self.logger.out('Acquiring write lock for synchronization D', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquiring write lock for synchronization phase D', state='i', prefix='Domain {}'.format(self.domuuid))
lock.acquire() lock.acquire()
self.logger.out('Acquired write lock for synchronization D', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Acquired write lock for synchronization phase D', state='o', prefix='Domain {}'.format(self.domuuid))
time.sleep(0.2) # Time for reader to acquire the lock time.sleep(0.2) # Time for reader to acquire the lock
self.state = zkhandler.readdata(self.zk_conn, '/domains/{}/state'.format(self.domuuid)) self.state = zkhandler.readdata(self.zk_conn, '/domains/{}/state'.format(self.domuuid))
@ -537,10 +537,10 @@ class VMInstance(object):
# The send failed catastrophically # The send failed catastrophically
self.logger.out('Send failed catastrophically, VM in undefined state', state='e', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Send failed catastrophically, VM in undefined state', state='e', prefix='Domain {}'.format(self.domuuid))
self.logger.out('Releasing write lock for synchronization D', state='i', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Releasing write lock for synchronization phase D', state='i', prefix='Domain {}'.format(self.domuuid))
zkhandler.writedata(self.zk_conn, { '/locks/domain_migrate': '' }) zkhandler.writedata(self.zk_conn, { '/locks/domain_migrate': '' })
lock.release() lock.release()
self.logger.out('Released write lock for synchronization D', state='o', prefix='Domain {}'.format(self.domuuid)) self.logger.out('Released write lock for synchronization phase D', state='o', prefix='Domain {}'.format(self.domuuid))
time.sleep(0.1) # Time for new writer to acquire the lock time.sleep(0.1) # Time for new writer to acquire the lock
self.inreceive = False self.inreceive = False