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ruanhaishen
redis
Commits
de9a2217
Commit
de9a2217
authored
Jun 28, 2013
by
antirez
Browse files
CONFIG SET maxclients.
parent
8e2d0820
Changes
3
Show whitespace changes
Inline
Side-by-side
src/config.c
View file @
de9a2217
...
...
@@ -559,10 +559,35 @@ void configSetCommand(redisClient *c) {
}
freeMemoryIfNeeded
();
}
}
else
if
(
!
strcasecmp
(
c
->
argv
[
2
]
->
ptr
,
"maxclients"
))
{
int
orig_value
=
server
.
maxclients
;
if
(
getLongLongFromObject
(
o
,
&
ll
)
==
REDIS_ERR
||
ll
<
0
)
goto
badfmt
;
/* Try to check if the OS is capable of supporting so many FDs. */
server
.
maxclients
=
ll
;
if
(
ll
>
orig_value
)
{
adjustOpenFilesLimit
();
if
(
server
.
maxclients
!=
ll
)
{
addReplyErrorFormat
(
c
,
"The operating system is not able to handle the specified number of clients, try with %d"
,
server
.
maxclients
);
server
.
maxclients
=
orig_value
;
return
;
}
if
(
aeGetSetSize
(
server
.
el
)
<
server
.
maxclients
+
REDIS_EVENTLOOP_FDSET_INCR
)
{
if
(
aeResizeSetSize
(
server
.
el
,
server
.
maxclients
+
REDIS_EVENTLOOP_FDSET_INCR
)
==
AE_ERR
)
{
addReplyError
(
c
,
"The event loop API used by Redis is not able to handle the specified number of clients"
);
server
.
maxclients
=
orig_value
;
return
;
}
}
}
}
else
if
(
!
strcasecmp
(
c
->
argv
[
2
]
->
ptr
,
"hz"
))
{
if
(
getLongLongFromObject
(
o
,
&
ll
)
==
REDIS_ERR
||
ll
<
0
)
goto
badfmt
;
server
.
hz
=
(
int
)
ll
;
if
(
getLongLongFromObject
(
o
,
&
ll
)
==
REDIS_ERR
||
ll
<
0
)
goto
badfmt
;
server
.
hz
=
ll
;
if
(
server
.
hz
<
REDIS_MIN_HZ
)
server
.
hz
=
REDIS_MIN_HZ
;
if
(
server
.
hz
>
REDIS_MAX_HZ
)
server
.
hz
=
REDIS_MAX_HZ
;
}
else
if
(
!
strcasecmp
(
c
->
argv
[
2
]
->
ptr
,
"maxmemory-policy"
))
{
...
...
src/redis.c
View file @
de9a2217
...
...
@@ -1422,7 +1422,7 @@ void initServer() {
createSharedObjects
();
adjustOpenFilesLimit
();
server
.
el
=
aeCreateEventLoop
(
server
.
maxclients
+
1024
);
server
.
el
=
aeCreateEventLoop
(
server
.
maxclients
+
REDIS_EVENTLOOP_FDSET_INCR
);
server
.
db
=
zmalloc
(
sizeof
(
redisDb
)
*
server
.
dbnum
);
if
(
server
.
port
!=
0
)
{
...
...
src/redis.h
View file @
de9a2217
...
...
@@ -130,6 +130,10 @@
#define REDIS_MBULK_BIG_ARG (1024*32)
#define REDIS_LONGSTR_SIZE 21
/* Bytes needed for long -> str */
#define REDIS_AOF_AUTOSYNC_BYTES (1024*1024*32)
/* fdatasync every 32MB */
/* When configuring the Redis eventloop, we setup it so that the total number
* of file descriptors we can handle are server.maxclients + FDSET_INCR
* that is our safety margin. */
#define REDIS_EVENTLOOP_FDSET_INCR 128
/* Hash table parameters */
#define REDIS_HT_MINFILL 10
/* Minimal hash table fill 10% */
...
...
@@ -1239,6 +1243,7 @@ int htNeedsResize(dict *dict);
void
oom
(
const
char
*
msg
);
void
populateCommandTable
(
void
);
void
resetCommandTableStats
(
void
);
void
adjustOpenFilesLimit
(
void
);
/* Set data type */
robj
*
setTypeCreate
(
robj
*
value
);
...
...
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