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ruanhaishen
redis
Commits
70c4851f
Commit
70c4851f
authored
May 11, 2020
by
WuYunlong
Browse files
Handle keys with hash tag when computing hash slot using tcl cluster client.
parent
bc9efb57
Changes
1
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Inline
Side-by-side
tests/support/cluster.tcl
View file @
70c4851f
...
@@ -286,8 +286,29 @@ proc ::redis_cluster::crc16 {s} {
...
@@ -286,8 +286,29 @@ proc ::redis_cluster::crc16 {s} {
# Hash a single key returning the slot it belongs to, Implemented hash
# Hash a single key returning the slot it belongs to, Implemented hash
# tags as described in the Redis Cluster specification.
# tags as described in the Redis Cluster specification.
proc ::redis_cluster::hash
{
key
}
{
proc ::redis_cluster::hash
{
key
}
{
# TODO: Handle hash slots.
set keylen
[
string length $key
]
expr
{[
::redis_cluster::crc16 $key
]
& 16383
}
set s
{}
set e
{}
for
{
set s 0
}
{
$s
< $keylen
}
{
incr s
}
{
if
{[
string index $key $s
]
eq
"
\{
"
}
break
}
if
{[
expr
{
$s
== $keylen
}]}
{
set res
[
expr
{[
crc16 $key
]
& 16383
}]
return $res
}
for
{
set e
[
expr
{
$s
+1
}]}
{
$e
< $keylen
}
{
incr e
}
{
if
{[
string index $key $e
]
==
"
\}
"
}
break
}
if
{
$e
== $keylen || $e ==
[
expr
{
$s
+1
}]}
{
set res
[
expr
{[
crc16 $key
]
& 16383
}]
return $res
}
set key_sub
[
string range $key
[
expr
{
$s
+1
}]
[
expr
{
$e-1
}]]
return
[
expr
{[
crc16 $key_sub
]
& 16383
}]
}
}
# Return the slot the specified keys hash to.
# Return the slot the specified keys hash to.
...
...
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