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Gabriel Monnerat
slapos
Commits
9e118e67
Commit
9e118e67
authored
Nov 15, 2012
by
Marco Mariani
Browse files
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Plain Diff
renamed variables for clarity, string constants, cleanup
parent
1daa1179
Changes
2
Hide whitespace changes
Inline
Side-by-side
Showing
2 changed files
with
64 additions
and
55 deletions
+64
-55
slapos/recipe/addresiliency/__init__.py
slapos/recipe/addresiliency/__init__.py
+4
-4
slapos/recipe/addresiliency/bully.py
slapos/recipe/addresiliency/bully.py
+60
-51
No files found.
slapos/recipe/addresiliency/__init__.py
View file @
9e118e67
...
@@ -39,15 +39,15 @@ class Recipe(GenericSlapRecipe):
...
@@ -39,15 +39,15 @@ class Recipe(GenericSlapRecipe):
confpath
=
os
.
path
.
join
(
self
.
options
[
'script'
],
'bully.conf'
)
confpath
=
os
.
path
.
join
(
self
.
options
[
'script'
],
'bully.conf'
)
ip
=
self
.
parameter_dict
[
'ip-list'
].
split
(
' '
)
ip
_list
=
self
.
parameter_dict
[
'ip-list'
]
print
'Creating bully configuration with ips : %s
\
n
'
%
ip
print
'Creating bully configuration with ips : %s
\
n
'
%
ip
_list
conf
=
self
.
createFile
(
confpath
,
conf
=
self
.
createFile
(
confpath
,
self
.
substituteTemplate
(
self
.
substituteTemplate
(
self
.
getTemplateFilename
(
'bully.conf.in'
),
self
.
getTemplateFilename
(
'bully.conf.in'
),
{
{
'self_id'
:
int
(
self
.
parameter_dict
[
'number'
]),
'self_id'
:
int
(
self
.
parameter_dict
[
'number'
]),
'ip_list'
:
ip
'ip_list'
:
ip
_list
}
}
))
))
path_list
.
append
(
conf
)
path_list
.
append
(
conf
)
...
@@ -58,7 +58,7 @@ class Recipe(GenericSlapRecipe):
...
@@ -58,7 +58,7 @@ class Recipe(GenericSlapRecipe):
wrapper
=
self
.
createPythonScript
(
wrapper
=
self
.
createPythonScript
(
name
=
os
.
path
.
join
(
self
.
options
[
'bin'
],
self
.
parameter_dict
[
'wrapper'
]),
name
=
os
.
path
.
join
(
self
.
options
[
'bin'
],
self
.
parameter_dict
[
'wrapper'
]),
absolute_function
=
'slapos.recipe.addresiliency.bully.run'
,
absolute_function
=
'slapos.recipe.addresiliency.bully.run'
,
arguments
=
{
arguments
=
{
'confpath'
:
confpath
,
'confpath'
:
confpath
,
'server_url'
:
slap_connection
[
'server-url'
],
'server_url'
:
slap_connection
[
'server-url'
],
'key_file'
:
slap_connection
.
get
(
'key-file'
),
'key_file'
:
slap_connection
.
get
(
'key-file'
),
...
...
slapos/recipe/addresiliency/bully.py
View file @
9e118e67
...
@@ -8,12 +8,25 @@ import time
...
@@ -8,12 +8,25 @@ import time
from
slapos
import
slap
as
slapmodule
from
slapos
import
slap
as
slapmodule
import
slapos
import
slapos
log
=
logging
.
getLogger
(
__name__
)
logging
.
basicConfig
(
level
=
logging
.
DEBUG
)
BASE_PORT
=
50000
BASE_PORT
=
50000
SLEEPING_MINS
=
2
# XXX was 30, increase after testing
SLEEPING_MINS
=
2
# XXX was 30, increase after testing
log
=
logging
.
getLogger
(
__name__
)
MSG_PING
=
'ping'
logging
.
basicConfig
(
level
=
logging
.
DEBUG
)
MSG_HALT
=
'halt'
MSG_VICTORY
=
'victory'
MSG_OK
=
'ok'
STATE_NORMAL
=
'normal'
STATE_WAITINGCONFIRM
=
'waitingConfirm'
STATE_ELECTION
=
'election'
STATE_REORGANIZATION
=
'reorganization'
class
Renamer
(
object
):
class
Renamer
(
object
):
...
@@ -44,7 +57,7 @@ class Renamer(object):
...
@@ -44,7 +57,7 @@ class Renamer(object):
partition_reference
=
cp_old_name
)
partition_reference
=
cp_old_name
)
broken_new_name
=
'broken-{}'
.
format
(
time
.
strftime
(
"%d-%b_%H:%M:%S"
,
time
.
gmtime
()))
broken_new_name
=
'broken-{}'
.
format
(
time
.
strftime
(
"%d-%b_%H:%M:%S"
,
time
.
gmtime
()))
# XXX how
to print the old name
# XXX how
can we retrieve and log the old name?
log
.
debug
(
"Renaming {}: {}"
.
format
(
broken
.
getId
(),
broken_new_name
))
log
.
debug
(
"Renaming {}: {}"
.
format
(
broken
.
getId
(),
broken_new_name
))
broken
.
rename
(
broken_new_name
)
broken
.
rename
(
broken_new_name
)
...
@@ -69,38 +82,36 @@ class ResilientInstance(object):
...
@@ -69,38 +82,36 @@ class ResilientInstance(object):
def
__init__
(
self
,
comm
,
renamer
,
confpath
):
def
__init__
(
self
,
comm
,
renamer
,
confpath
):
self
.
comm
=
comm
self
.
comm
=
comm
self
.
id
=
0
self
.
participant_
id
=
0
self
.
state
=
'normal'
self
.
state
=
STATE_NORMAL
self
.
halter
=
0
self
.
halter
_id
=
0
self
.
inElection
=
False
self
.
inElection
=
False
self
.
alive
=
True
self
.
alive
=
True
self
.
lastPing
=
time
.
clock
()
self
.
lastPing
=
time
.
clock
()
self
.
mainCanal
=
self
.
comm
.
canal
([
'ping'
,
'halt'
,
'victory'
])
self
.
mainCanal
=
self
.
comm
.
canal
([
MSG_PING
,
MSG_HALT
,
MSG_VICTORY
])
self
.
renamer
=
renamer
self
.
renamer
=
renamer
self
.
okCanal
=
self
.
comm
.
canal
([
'ok'
])
self
.
okCanal
=
self
.
comm
.
canal
([
MSG_OK
])
self
.
confpath
=
confpath
self
.
confpath
=
confpath
self
.
loadConnectionInfo
()
self
.
loadConnectionInfo
()
def
loadConnectionInfo
(
self
):
def
loadConnectionInfo
(
self
):
file
=
open
(
self
.
confpath
,
'r'
)
params
=
open
(
self
.
confpath
,
'r'
).
readlines
()
params
=
file
.
read
().
split
(
'
\
n
'
)
self
.
total_participants
=
len
(
params
[
0
].
split
())
file
.
close
()
self
.
nbComp
=
len
([
x
.
strip
(
"' "
)
for
x
in
params
[
0
].
strip
(
'[],'
).
split
(
','
)])
new_id
=
int
(
params
[
1
])
new_id
=
int
(
params
[
1
])
if
self
.
id
!=
new_id
:
if
self
.
participant_
id
!=
new_id
:
self
.
halter
=
new_id
self
.
halter
_id
=
new_id
self
.
id
=
new_id
self
.
participant_
id
=
new_id
## Needs to be changed to use the master
## Needs to be changed to use the master
def
aliveManagement
(
self
):
def
aliveManagement
(
self
):
while
self
.
alive
:
while
self
.
alive
:
log
.
info
(
'XXX sleeping for %d minutes'
%
SLEEPING_MINS
)
log
.
info
(
'XXX sleeping for %d minutes'
%
SLEEPING_MINS
)
time
.
sleep
(
SLEEPING_MINS
*
60
)
time
.
sleep
(
SLEEPING_MINS
*
60
)
if
self
.
id
==
0
:
if
self
.
participant_
id
==
0
:
continue
continue
self
.
comm
.
send
(
'ping'
,
0
)
self
.
comm
.
send
(
MSG_PING
,
0
)
message
,
sender
=
self
.
okCanal
.
get
()
message
,
sender
=
self
.
okCanal
.
get
()
if
message
:
if
message
:
continue
continue
...
@@ -113,29 +124,29 @@ class ResilientInstance(object):
...
@@ -113,29 +124,29 @@ class ResilientInstance(object):
def
main
(
self
):
def
main
(
self
):
while
self
.
alive
:
while
self
.
alive
:
message
,
sender
=
self
.
mainCanal
.
get
()
message
,
sender
=
self
.
mainCanal
.
get
()
if
message
==
'ping'
:
if
message
==
MSG_PING
:
self
.
comm
.
send
(
'ok'
,
sender
)
self
.
comm
.
send
(
MSG_OK
,
sender
)
elif
message
==
'halt'
:
elif
message
==
MSG_HALT
:
self
.
state
=
'waitingConfirm'
self
.
state
=
STATE_WAITINGCONFIRM
self
.
halter
=
sender
self
.
halter
_id
=
int
(
sender
)
self
.
comm
.
send
(
'ok'
,
sender
)
self
.
comm
.
send
(
MSG_OK
,
sender
)
elif
message
==
'victory'
:
elif
message
==
MSG_VICTORY
:
if
int
(
sender
)
==
int
(
self
.
halter
)
and
self
.
state
==
'waitingConfirm'
:
if
int
(
sender
)
==
self
.
halter_id
and
self
.
state
==
STATE_WAITINGCONFIRM
:
log
.
info
(
'{} thinks {} is the leader'
.
format
(
self
.
id
,
sender
))
log
.
info
(
'{} thinks {} is the leader'
.
format
(
self
.
participant_
id
,
sender
))
self
.
comm
.
send
(
'ok'
,
sender
)
self
.
comm
.
send
(
MSG_OK
,
sender
)
self
.
state
=
'normal'
self
.
state
=
STATE_NORMAL
def
election
(
self
):
def
election
(
self
):
self
.
inElection
=
True
self
.
inElection
=
True
self
.
loadConnectionInfo
()
self
.
loadConnectionInfo
()
#Check if I'm the highest instance alive
#
Check if I'm the highest instance alive
for
higher
in
range
(
self
.
id
+
1
,
self
.
nbComp
):
for
higher
in
range
(
self
.
participant_id
+
1
,
self
.
total_participants
):
self
.
comm
.
send
(
'ping'
,
higher
)
self
.
comm
.
send
(
MSG_PING
,
higher
)
message
,
sender
=
self
.
okCanal
.
get
()
message
,
sender
=
self
.
okCanal
.
get
()
if
message
:
if
message
:
log
.
info
(
'{} is alive ({})'
.
format
(
higher
,
self
.
id
))
log
.
info
(
'{} is alive ({})'
.
format
(
higher
,
self
.
participant_
id
))
self
.
inElection
=
False
self
.
inElection
=
False
return
False
return
False
continue
continue
...
@@ -143,29 +154,29 @@ class ResilientInstance(object):
...
@@ -143,29 +154,29 @@ class ResilientInstance(object):
if
not
self
.
alive
:
if
not
self
.
alive
:
return
False
return
False
#I should be the new coordinator, halt those below me
#
I should be the new coordinator, halt those below me
log
.
info
(
'Should be ME : {}'
.
format
(
self
.
id
))
log
.
info
(
'Should be ME : {}'
.
format
(
self
.
participant_
id
))
self
.
state
=
'election'
self
.
state
=
STATE_ELECTION
self
.
halter
=
self
.
id
self
.
halter
_id
=
self
.
participant_
id
ups
=
[]
ups
=
[]
for
lower
in
range
(
self
.
id
):
for
lower
in
range
(
self
.
participant_
id
):
self
.
comm
.
send
(
'halt'
,
lower
)
self
.
comm
.
send
(
MSG_HALT
,
lower
)
message
,
sender
=
self
.
okCanal
.
get
()
message
,
sender
=
self
.
okCanal
.
get
()
if
message
:
if
message
:
ups
.
append
(
lower
)
ups
.
append
(
lower
)
#Broadcast Victory
#Broadcast Victory
self
.
state
=
'reorganization'
self
.
state
=
STATE_REORGANIZATION
for
up
in
ups
:
for
up
in
ups
:
self
.
comm
.
send
(
'victory'
,
up
)
self
.
comm
.
send
(
MSG_VICTORY
,
up
)
message
,
sender
=
self
.
okCanal
.
get
()
message
,
sender
=
self
.
okCanal
.
get
()
if
message
:
if
message
:
continue
continue
log
.
info
(
'Something is wrong... let
\
'
s start over'
)
log
.
info
(
'Something is wrong... let
\
'
s start over'
)
return
self
.
election
()
return
self
.
election
()
self
.
state
=
'normal'
self
.
state
=
STATE_NORMAL
self
.
active
=
True
self
.
active
=
True
log
.
info
(
'{} Is THE LEADER'
.
format
(
self
.
id
))
log
.
info
(
'{} Is THE LEADER'
.
format
(
self
.
participant_
id
))
self
.
renamer
.
failover
()
self
.
renamer
.
failover
()
...
@@ -204,23 +215,21 @@ class Wrapper(object):
...
@@ -204,23 +215,21 @@ class Wrapper(object):
def
__init__
(
self
,
confpath
,
timeout
=
20
):
def
__init__
(
self
,
confpath
,
timeout
=
20
):
self
.
canals
=
[]
self
.
canals
=
[]
self
.
ips
=
[]
self
.
ips
=
[]
self
.
id
=
0
self
.
participant_
id
=
0
self
.
timeout
=
timeout
self
.
timeout
=
timeout
self
.
confpath
=
confpath
self
.
confpath
=
confpath
self
.
getConnectionInfo
()
self
.
getConnectionInfo
()
self
.
socket
=
None
self
.
socket
=
None
def
getConnectionInfo
(
self
):
def
getConnectionInfo
(
self
):
file
=
open
(
self
.
confpath
,
'r'
)
params
=
open
(
self
.
confpath
,
'r'
).
readlines
()
params
=
file
.
read
().
split
(
'
\
n
'
)
self
.
ips
=
params
[
0
].
split
()
file
.
close
()
self
.
participant_id
=
int
(
params
[
1
])
self
.
ips
=
[
x
.
strip
(
"' "
)
for
x
in
params
[
0
].
strip
(
'[],'
).
split
(
','
)]
self
.
id
=
int
(
params
[
1
])
def
start
(
self
):
def
start
(
self
):
self
.
getConnectionInfo
()
self
.
getConnectionInfo
()
self
.
socket
=
socket
.
socket
(
socket
.
AF_INET6
,
socket
.
SOCK_STREAM
)
self
.
socket
=
socket
.
socket
(
socket
.
AF_INET6
,
socket
.
SOCK_STREAM
)
self
.
socket
.
bind
((
self
.
ips
[
self
.
id
],
BASE_PORT
+
self
.
id
))
self
.
socket
.
bind
((
self
.
ips
[
self
.
participant_id
],
BASE_PORT
+
self
.
participant_
id
))
self
.
socket
.
listen
(
5
)
self
.
socket
.
listen
(
5
)
def
send
(
self
,
message
,
number
):
def
send
(
self
,
message
,
number
):
...
@@ -228,7 +237,7 @@ class Wrapper(object):
...
@@ -228,7 +237,7 @@ class Wrapper(object):
try
:
try
:
s
=
socket
.
socket
(
socket
.
AF_INET6
,
socket
.
SOCK_STREAM
)
s
=
socket
.
socket
(
socket
.
AF_INET6
,
socket
.
SOCK_STREAM
)
s
.
connect
((
self
.
ips
[
number
],
BASE_PORT
+
number
))
s
.
connect
((
self
.
ips
[
number
],
BASE_PORT
+
number
))
s
.
send
(
message
+
(
' {}
\
n
'
.
format
(
self
.
id
)))
s
.
send
(
message
+
(
' {}
\
n
'
.
format
(
self
.
participant_
id
)))
except
(
socket
.
error
,
socket
.
herror
,
socket
.
gaierror
,
socket
.
timeout
):
except
(
socket
.
error
,
socket
.
herror
,
socket
.
gaierror
,
socket
.
timeout
):
pass
pass
finally
:
finally
:
...
@@ -269,7 +278,7 @@ def run(args):
...
@@ -269,7 +278,7 @@ def run(args):
computer
=
ResilientInstance
(
wrapper
,
renamer
=
renamer
,
confpath
=
confpath
)
computer
=
ResilientInstance
(
wrapper
,
renamer
=
renamer
,
confpath
=
confpath
)
# idle waiting for connection infos
# idle waiting for connection infos
while
computer
.
nbComp
<
2
:
while
computer
.
total_participants
<
2
:
computer
.
loadConnectionInfo
()
computer
.
loadConnectionInfo
()
time
.
sleep
(
30
)
time
.
sleep
(
30
)
...
...
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