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体验新版 GitCode,发现更多精彩内容 >>
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9a38df87
编写于
9月 30, 2011
作者:
A
antirez
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差异文件
redis-trib: actual slot migration work in progress, more work needed.
上级
c5954c19
变更
1
隐藏空白更改
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1 changed file
with
19 addition
and
2 deletion
+19
-2
src/redis-trib.rb
src/redis-trib.rb
+19
-2
未找到文件。
src/redis-trib.rb
浏览文件 @
9a38df87
...
...
@@ -314,10 +314,20 @@ class RedisTrib
def
show_reshard_table
(
table
)
table
.
each
{
|
e
|
puts
"Moving slot
#{
e
[
:slot
]
}
from
#{
e
[
:source
].
info
[
:name
]
}
"
puts
"
Moving slot
#{
e
[
:slot
]
}
from
#{
e
[
:source
].
info
[
:name
]
}
"
}
end
def
move_slot
(
source
,
target
,
slot
)
# We start marking the slot as importing in the destination node,
# and the slot as migrating in the target host. Note that the order of
# the operations is important, as otherwise a client may be redirected to
# the target node that does not yet know it is importing this slot.
target
.
r
(
"cluster"
,
"setslot"
,
slot
,
"importing"
,
source
.
info
[
:name
])
source
.
r
(
"cluster"
,
"setslot"
,
slot
,
"migrating"
,
source
.
info
[
:name
])
# Migrate all the keys from source to target using the MIGRATE command
end
# redis-trib subcommands implementations
def
check_cluster_cmd
...
...
@@ -334,7 +344,7 @@ class RedisTrib
end
numslots
=
0
while
numslots
<=
0
or
numslots
>
4096
print
"How many slots do you want to move (from 1 to 4096)?"
print
"How many slots do you want to move (from 1 to 4096)?
"
numslots
=
STDIN
.
gets
.
to_i
end
target
=
nil
...
...
@@ -380,7 +390,14 @@ class RedisTrib
puts
" Destination node:"
puts
"
#{
target
.
info_string
}
"
reshard_table
=
compute_reshard_table
(
sources
,
numslots
)
puts
" Resharding plan:"
show_reshard_table
(
reshard_table
)
print
"Do you want to proceed with the proposed reshard plan (yes/no)? "
yesno
=
STDIN
.
gets
.
chop
exit
(
1
)
if
(
yesno
!=
"yes"
)
reshard_table
.
each
{
|
e
|
move_slot
(
e
[
:source
],
target
,
e
[
:slot
])
}
end
def
create_cluster_cmd
...
...
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