Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
hanoi2005
redis
提交
3b5e72d4
R
redis
项目概览
hanoi2005
/
redis
与 Fork 源项目一致
从无法访问的项目Fork
通知
1
Star
0
Fork
0
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
0
列表
看板
标记
里程碑
合并请求
0
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
R
redis
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
0
Issue
0
列表
看板
标记
里程碑
合并请求
0
合并请求
0
Pages
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
提交
Issue看板
体验新版 GitCode,发现更多精彩内容 >>
提交
3b5e72d4
编写于
11月 05, 2010
作者:
A
antirez
浏览文件
操作
浏览文件
下载
差异文件
Merge branch 'aaslave'
上级
ecc72ca1
4ebfc455
变更
6
隐藏空白更改
内联
并排
Showing
6 changed file
with
206 addition
and
66 deletion
+206
-66
redis.conf
redis.conf
+13
-0
src/config.c
src/config.c
+14
-0
src/networking.c
src/networking.c
+1
-0
src/redis.c
src/redis.c
+28
-9
src/redis.h
src/redis.h
+15
-3
src/replication.c
src/replication.c
+135
-54
未找到文件。
redis.conf
浏览文件 @
3b5e72d4
...
...
@@ -110,6 +110,19 @@ dir ./
#
# masterauth <master-password>
# When a slave lost the connection with the master, or when the replication
# is still in progress, the slave can act in two different ways:
#
# 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will
# still reply to client requests, possibly with out of data data, or the
# data set may just be empty if this is the first synchronization.
#
# 2) if slave-serve-stale data is set to 'no' the slave will reply with
# an error "SYNC with master in progress" to all the kind of commands
# but to INFO and SLAVEOF.
#
slave
-
serve
-
stale
-
data
yes
################################## SECURITY ###################################
# Require clients to issue AUTH <PASSWORD> before processing any other
...
...
src/config.c
浏览文件 @
3b5e72d4
...
...
@@ -152,6 +152,10 @@ void loadServerConfig(char *filename) {
server
.
replstate
=
REDIS_REPL_CONNECT
;
}
else
if
(
!
strcasecmp
(
argv
[
0
],
"masterauth"
)
&&
argc
==
2
)
{
server
.
masterauth
=
zstrdup
(
argv
[
1
]);
}
else
if
(
!
strcasecmp
(
argv
[
0
],
"slave-serve-stale-data"
)
&&
argc
==
2
)
{
if
((
server
.
repl_serve_stale_data
=
yesnotoi
(
argv
[
1
]))
==
-
1
)
{
err
=
"argument must be 'yes' or 'no'"
;
goto
loaderr
;
}
}
else
if
(
!
strcasecmp
(
argv
[
0
],
"glueoutputbuf"
)
&&
argc
==
2
)
{
if
((
server
.
glueoutputbuf
=
yesnotoi
(
argv
[
1
]))
==
-
1
)
{
err
=
"argument must be 'yes' or 'no'"
;
goto
loaderr
;
...
...
@@ -379,6 +383,11 @@ void configSetCommand(redisClient *c) {
appendServerSaveParams
(
seconds
,
changes
);
}
sdsfreesplitres
(
v
,
vlen
);
}
else
if
(
!
strcasecmp
(
c
->
argv
[
2
]
->
ptr
,
"slave-serve-stale-data"
))
{
int
yn
=
yesnotoi
(
o
->
ptr
);
if
(
yn
==
-
1
)
goto
badfmt
;
server
.
repl_serve_stale_data
=
yn
;
}
else
{
addReplyErrorFormat
(
c
,
"Unsupported CONFIG parameter: %s"
,
(
char
*
)
c
->
argv
[
2
]
->
ptr
);
...
...
@@ -488,6 +497,11 @@ void configGetCommand(redisClient *c) {
sdsfree
(
buf
);
matches
++
;
}
if
(
stringmatch
(
pattern
,
"slave-serve-stale-data"
,
0
))
{
addReplyBulkCString
(
c
,
"slave-serve-stale-data"
);
addReplyBulkCString
(
c
,
server
.
repl_serve_stale_data
?
"yes"
:
"no"
);
matches
++
;
}
setDeferredMultiBulkLength
(
c
,
replylen
,
matches
*
2
);
}
...
...
src/networking.c
浏览文件 @
3b5e72d4
...
...
@@ -467,6 +467,7 @@ void freeClient(redisClient *c) {
/* Case 2: we lost the connection with the master. */
if
(
c
->
flags
&
REDIS_MASTER
)
{
server
.
master
=
NULL
;
/* FIXME */
server
.
replstate
=
REDIS_REPL_CONNECT
;
/* Since we lost the connection with the master, we should also
* close the connection with all our slaves if we have any, so
...
...
src/redis.c
浏览文件 @
3b5e72d4
...
...
@@ -633,14 +633,10 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
}
}
/* Check if we should connect to a MASTER */
if
(
server
.
replstate
==
REDIS_REPL_CONNECT
&&
!
(
loops
%
10
))
{
redisLog
(
REDIS_NOTICE
,
"Connecting to MASTER..."
);
if
(
syncWithMaster
()
==
REDIS_OK
)
{
redisLog
(
REDIS_NOTICE
,
"MASTER <-> SLAVE sync succeeded"
);
if
(
server
.
appendonly
)
rewriteAppendOnlyFileBackground
();
}
}
/* Replication cron function -- used to reconnect to master and
* to detect transfer failures. */
if
(
!
(
loops
%
10
))
replicationCron
();
return
100
;
}
...
...
@@ -790,6 +786,7 @@ void initServerConfig() {
server
.
masterport
=
6379
;
server
.
master
=
NULL
;
server
.
replstate
=
REDIS_REPL_NONE
;
server
.
repl_serve_stale_data
=
1
;
/* Double constants initialization */
R_Zero
=
0
.
0
;
...
...
@@ -998,6 +995,17 @@ int processCommand(redisClient *c) {
return
REDIS_OK
;
}
/* Only allow INFO and SLAVEOF when slave-serve-stale-data is no and
* we are a slave with a broken link with master. */
if
(
server
.
masterhost
&&
server
.
replstate
!=
REDIS_REPL_CONNECTED
&&
server
.
repl_serve_stale_data
==
0
&&
cmd
->
proc
!=
infoCommand
&&
cmd
->
proc
!=
slaveofCommand
)
{
addReplyError
(
c
,
"link with MASTER is down and slave-serve-stale-data is set to no"
);
return
REDIS_OK
;
}
/* Exec the command */
if
(
c
->
flags
&
REDIS_MULTI
&&
cmd
->
proc
!=
execCommand
&&
cmd
->
proc
!=
discardCommand
&&
...
...
@@ -1187,12 +1195,23 @@ sds genRedisInfoString(void) {
"master_port:%d
\r\n
"
"master_link_status:%s
\r\n
"
"master_last_io_seconds_ago:%d
\r\n
"
"master_sync_in_progress:%d
\r\n
"
,
server
.
masterhost
,
server
.
masterport
,
(
server
.
replstate
==
REDIS_REPL_CONNECTED
)
?
"up"
:
"down"
,
server
.
master
?
((
int
)(
time
(
NULL
)
-
server
.
master
->
lastinteraction
))
:
-
1
server
.
master
?
((
int
)(
time
(
NULL
)
-
server
.
master
->
lastinteraction
))
:
-
1
,
server
.
replstate
==
REDIS_REPL_TRANSFER
);
if
(
server
.
replstate
==
REDIS_REPL_TRANSFER
)
{
info
=
sdscatprintf
(
info
,
"master_sync_left_bytes:%ld
\r\n
"
"master_sync_last_io_seconds_ago:%d
\r\n
"
,(
long
)
server
.
repl_transfer_left
,
(
int
)(
time
(
NULL
)
-
server
.
repl_transfer_lastio
)
);
}
}
if
(
server
.
vm_enabled
)
{
lockThreadedIO
();
...
...
src/redis.h
浏览文件 @
3b5e72d4
...
...
@@ -152,7 +152,8 @@
/* Slave replication state - slave side */
#define REDIS_REPL_NONE 0
/* No active replication */
#define REDIS_REPL_CONNECT 1
/* Must connect to master */
#define REDIS_REPL_CONNECTED 2
/* Connected to master */
#define REDIS_REPL_TRANSFER 2
/* Receiving .rdb from master */
#define REDIS_REPL_CONNECTED 3
/* Connected to master */
/* Slave replication state - from the point of view of master
* Note that in SEND_BULK and ONLINE state the slave receives new updates
...
...
@@ -360,7 +361,8 @@ struct redisServer {
long
long
dirty_before_bgsave
;
/* used to restore dirty on failed BGSAVE */
list
*
clients
;
dict
*
commands
;
/* Command table hahs table */
struct
redisCommand
*
delCommand
,
*
multiCommand
;
/* often lookedup cmds */
/* Fast pointers to often looked up command */
struct
redisCommand
*
delCommand
,
*
multiCommand
;
list
*
slaves
,
*
monitors
;
char
neterr
[
ANET_ERR_LEN
];
aeEventLoop
*
el
;
...
...
@@ -401,15 +403,24 @@ struct redisServer {
int
activerehashing
;
/* Replication related */
int
isslave
;
/* Slave specific fields */
char
*
masterauth
;
char
*
masterhost
;
int
masterport
;
redisClient
*
master
;
/* client that is master for this slave */
int
replstate
;
int
replstate
;
/* replication status if the instance is a slave */
off_t
repl_transfer_left
;
/* bytes left reading .rdb */
int
repl_transfer_s
;
/* slave -> master SYNC socket */
int
repl_transfer_fd
;
/* slave -> master SYNC temp file descriptor */
char
*
repl_transfer_tmpfile
;
/* slave-> master SYNC temp file name */
time_t
repl_transfer_lastio
;
/* unix time of the latest read, for timeout */
int
repl_serve_stale_data
;
/* Serve stale data when link is down? */
/* Limits */
unsigned
int
maxclients
;
unsigned
long
long
maxmemory
;
int
maxmemory_policy
;
int
maxmemory_samples
;
/* Blocked clients */
unsigned
int
blpop_blocked_clients
;
unsigned
int
vm_blocked_clients
;
/* Sort parameters - qsort_r() is only available under BSD so we
...
...
@@ -713,6 +724,7 @@ void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
void
replicationFeedMonitors
(
list
*
monitors
,
int
dictid
,
robj
**
argv
,
int
argc
);
int
syncWithMaster
(
void
);
void
updateSlavesWaitingBgsave
(
int
bgsaveerr
);
void
replicationCron
(
void
);
/* RDB persistence */
int
rdbLoad
(
char
*
filename
);
...
...
src/replication.c
浏览文件 @
3b5e72d4
...
...
@@ -5,6 +5,8 @@
#include <fcntl.h>
#include <sys/stat.h>
/* ---------------------------------- MASTER -------------------------------- */
void
replicationFeedSlaves
(
list
*
slaves
,
int
dictid
,
robj
**
argv
,
int
argc
)
{
listNode
*
ln
;
listIter
li
;
...
...
@@ -288,9 +290,101 @@ void updateSlavesWaitingBgsave(int bgsaveerr) {
}
}
/* ----------------------------------- SLAVE -------------------------------- */
/* Abort the async download of the bulk dataset while SYNC-ing with master */
void
replicationAbortSyncTransfer
(
void
)
{
redisAssert
(
server
.
replstate
==
REDIS_REPL_TRANSFER
);
aeDeleteFileEvent
(
server
.
el
,
server
.
repl_transfer_s
,
AE_READABLE
);
close
(
server
.
repl_transfer_s
);
close
(
server
.
repl_transfer_fd
);
unlink
(
server
.
repl_transfer_tmpfile
);
zfree
(
server
.
repl_transfer_tmpfile
);
server
.
replstate
=
REDIS_REPL_CONNECT
;
}
/* Asynchronously read the SYNC payload we receive from a master */
void
readSyncBulkPayload
(
aeEventLoop
*
el
,
int
fd
,
void
*
privdata
,
int
mask
)
{
char
buf
[
4096
];
ssize_t
nread
,
readlen
;
REDIS_NOTUSED
(
el
);
REDIS_NOTUSED
(
privdata
);
REDIS_NOTUSED
(
mask
);
/* If repl_transfer_left == -1 we still have to read the bulk length
* from the master reply. */
if
(
server
.
repl_transfer_left
==
-
1
)
{
if
(
syncReadLine
(
fd
,
buf
,
1024
,
3600
)
==
-
1
)
{
redisLog
(
REDIS_WARNING
,
"I/O error reading bulk count from MASTER: %s"
,
strerror
(
errno
));
replicationAbortSyncTransfer
();
return
;
}
if
(
buf
[
0
]
==
'-'
)
{
redisLog
(
REDIS_WARNING
,
"MASTER aborted replication with an error: %s"
,
buf
+
1
);
replicationAbortSyncTransfer
();
return
;
}
else
if
(
buf
[
0
]
!=
'$'
)
{
redisLog
(
REDIS_WARNING
,
"Bad protocol from MASTER, the first byte is not '$', are you sure the host and port are right?"
);
replicationAbortSyncTransfer
();
return
;
}
server
.
repl_transfer_left
=
strtol
(
buf
+
1
,
NULL
,
10
);
redisLog
(
REDIS_NOTICE
,
"MASTER <-> SLAVE sync: receiving %ld bytes from master"
,
server
.
repl_transfer_left
);
return
;
}
/* Read bulk data */
readlen
=
(
server
.
repl_transfer_left
<
(
signed
)
sizeof
(
buf
))
?
server
.
repl_transfer_left
:
(
signed
)
sizeof
(
buf
);
nread
=
read
(
fd
,
buf
,
readlen
);
if
(
nread
<=
0
)
{
redisLog
(
REDIS_WARNING
,
"I/O error trying to sync with MASTER: %s"
,
(
nread
==
-
1
)
?
strerror
(
errno
)
:
"connection lost"
);
replicationAbortSyncTransfer
();
return
;
}
server
.
repl_transfer_lastio
=
time
(
NULL
);
if
(
write
(
server
.
repl_transfer_fd
,
buf
,
nread
)
!=
nread
)
{
redisLog
(
REDIS_WARNING
,
"Write error or short write writing to the DB dump file needed for MASTER <-> SLAVE synchrnonization: %s"
,
strerror
(
errno
));
replicationAbortSyncTransfer
();
return
;
}
server
.
repl_transfer_left
-=
nread
;
/* Check if the transfer is now complete */
if
(
server
.
repl_transfer_left
==
0
)
{
if
(
rename
(
server
.
repl_transfer_tmpfile
,
server
.
dbfilename
)
==
-
1
)
{
redisLog
(
REDIS_WARNING
,
"Failed trying to rename the temp DB into dump.rdb in MASTER <-> SLAVE synchronization: %s"
,
strerror
(
errno
));
replicationAbortSyncTransfer
();
return
;
}
redisLog
(
REDIS_NOTICE
,
"MASTER <-> SLAVE sync: Loading DB in memory"
);
emptyDb
();
if
(
rdbLoad
(
server
.
dbfilename
)
!=
REDIS_OK
)
{
redisLog
(
REDIS_WARNING
,
"Failed trying to load the MASTER synchronization DB from disk"
);
replicationAbortSyncTransfer
();
return
;
}
/* Final setup of the connected slave <- master link */
aeDeleteFileEvent
(
server
.
el
,
server
.
repl_transfer_s
,
AE_READABLE
);
zfree
(
server
.
repl_transfer_tmpfile
);
close
(
server
.
repl_transfer_fd
);
server
.
master
=
createClient
(
server
.
repl_transfer_s
);
server
.
master
->
flags
|=
REDIS_MASTER
;
server
.
master
->
authenticated
=
1
;
server
.
replstate
=
REDIS_REPL_CONNECTED
;
redisLog
(
REDIS_NOTICE
,
"MASTER <-> SLAVE sync: Finished with success"
);
}
}
int
syncWithMaster
(
void
)
{
char
buf
[
1024
],
tmpfile
[
256
],
authcmd
[
1024
];
long
dumpsize
;
int
fd
=
anetTcpConnect
(
NULL
,
server
.
masterhost
,
server
.
masterport
);
int
dfd
,
maxtries
=
5
;
...
...
@@ -330,26 +424,8 @@ int syncWithMaster(void) {
strerror
(
errno
));
return
REDIS_ERR
;
}
/* Read the bulk write count */
if
(
syncReadLine
(
fd
,
buf
,
1024
,
3600
)
==
-
1
)
{
close
(
fd
);
redisLog
(
REDIS_WARNING
,
"I/O error reading bulk count from MASTER: %s"
,
strerror
(
errno
));
return
REDIS_ERR
;
}
if
(
buf
[
0
]
==
'-'
)
{
close
(
fd
);
redisLog
(
REDIS_WARNING
,
"MASTER aborted replication with an error: %s"
,
buf
+
1
);
return
REDIS_ERR
;
}
else
if
(
buf
[
0
]
!=
'$'
)
{
close
(
fd
);
redisLog
(
REDIS_WARNING
,
"Bad protocol from MASTER, the first byte is not '$', are you sure the host and port are right?"
);
return
REDIS_ERR
;
}
dumpsize
=
strtol
(
buf
+
1
,
NULL
,
10
);
redisLog
(
REDIS_NOTICE
,
"Receiving %ld bytes data dump from MASTER"
,
dumpsize
);
/* Read the bulk write data on a temp file */
/* Prepare a suitable temp file for bulk transfer */
while
(
maxtries
--
)
{
snprintf
(
tmpfile
,
256
,
"temp-%d.%ld.rdb"
,(
int
)
time
(
NULL
),(
long
int
)
getpid
());
...
...
@@ -362,43 +438,21 @@ int syncWithMaster(void) {
redisLog
(
REDIS_WARNING
,
"Opening the temp file needed for MASTER <-> SLAVE synchronization: %s"
,
strerror
(
errno
));
return
REDIS_ERR
;
}
while
(
dumpsize
)
{
int
nread
,
nwritten
;
nread
=
read
(
fd
,
buf
,(
dumpsize
<
1024
)
?
dumpsize
:
1024
);
if
(
nread
<=
0
)
{
redisLog
(
REDIS_WARNING
,
"I/O error trying to sync with MASTER: %s"
,
(
nread
==
-
1
)
?
strerror
(
errno
)
:
"connection lost"
);
close
(
fd
);
close
(
dfd
);
return
REDIS_ERR
;
}
nwritten
=
write
(
dfd
,
buf
,
nread
);
if
(
nwritten
==
-
1
)
{
redisLog
(
REDIS_WARNING
,
"Write error writing to the DB dump file needed for MASTER <-> SLAVE synchrnonization: %s"
,
strerror
(
errno
));
close
(
fd
);
close
(
dfd
);
return
REDIS_ERR
;
}
dumpsize
-=
nread
;
}
close
(
dfd
);
if
(
rename
(
tmpfile
,
server
.
dbfilename
)
==
-
1
)
{
redisLog
(
REDIS_WARNING
,
"Failed trying to rename the temp DB into dump.rdb in MASTER <-> SLAVE synchronization: %s"
,
strerror
(
errno
));
unlink
(
tmpfile
);
/* Setup the non blocking download of the bulk file. */
if
(
aeCreateFileEvent
(
server
.
el
,
fd
,
AE_READABLE
,
readSyncBulkPayload
,
NULL
)
==
AE_ERR
)
{
close
(
fd
);
redisLog
(
REDIS_WARNING
,
"Can't create readable event for SYNC"
);
return
REDIS_ERR
;
}
emptyDb
();
if
(
rdbLoad
(
server
.
dbfilename
)
!=
REDIS_OK
)
{
redisLog
(
REDIS_WARNING
,
"Failed trying to load the MASTER synchronization DB from disk"
);
close
(
fd
);
return
REDIS_ERR
;
}
server
.
master
=
createClient
(
fd
);
server
.
master
->
flags
|=
REDIS_MASTER
;
server
.
master
->
authenticated
=
1
;
server
.
replstate
=
REDIS_REPL_CONNECTED
;
server
.
replstate
=
REDIS_REPL_TRANSFER
;
server
.
repl_transfer_left
=
-
1
;
server
.
repl_transfer_s
=
fd
;
server
.
repl_transfer_fd
=
dfd
;
server
.
repl_transfer_lastio
=
time
(
NULL
);
server
.
repl_transfer_tmpfile
=
zstrdup
(
tmpfile
);
return
REDIS_OK
;
}
...
...
@@ -409,6 +463,8 @@ void slaveofCommand(redisClient *c) {
sdsfree
(
server
.
masterhost
);
server
.
masterhost
=
NULL
;
if
(
server
.
master
)
freeClient
(
server
.
master
);
if
(
server
.
replstate
==
REDIS_REPL_TRANSFER
)
replicationAbortSyncTransfer
();
server
.
replstate
=
REDIS_REPL_NONE
;
redisLog
(
REDIS_NOTICE
,
"MASTER MODE enabled (user request)"
);
}
...
...
@@ -417,9 +473,34 @@ void slaveofCommand(redisClient *c) {
server
.
masterhost
=
sdsdup
(
c
->
argv
[
1
]
->
ptr
);
server
.
masterport
=
atoi
(
c
->
argv
[
2
]
->
ptr
);
if
(
server
.
master
)
freeClient
(
server
.
master
);
if
(
server
.
replstate
==
REDIS_REPL_TRANSFER
)
replicationAbortSyncTransfer
();
server
.
replstate
=
REDIS_REPL_CONNECT
;
redisLog
(
REDIS_NOTICE
,
"SLAVE OF %s:%d enabled (user request)"
,
server
.
masterhost
,
server
.
masterport
);
}
addReply
(
c
,
shared
.
ok
);
}
/* --------------------------- REPLICATION CRON ---------------------------- */
#define REDIS_REPL_TRANSFER_TIMEOUT 60
void
replicationCron
(
void
)
{
/* Bulk transfer I/O timeout? */
if
(
server
.
masterhost
&&
server
.
replstate
==
REDIS_REPL_TRANSFER
&&
(
time
(
NULL
)
-
server
.
repl_transfer_lastio
)
>
REDIS_REPL_TRANSFER_TIMEOUT
)
{
redisLog
(
REDIS_WARNING
,
"Timeout receiving bulk data from MASTER..."
);
replicationAbortSyncTransfer
();
}
/* Check if we should connect to a MASTER */
if
(
server
.
replstate
==
REDIS_REPL_CONNECT
)
{
redisLog
(
REDIS_NOTICE
,
"Connecting to MASTER..."
);
if
(
syncWithMaster
()
==
REDIS_OK
)
{
redisLog
(
REDIS_NOTICE
,
"MASTER <-> SLAVE sync started: SYNC sent"
);
if
(
server
.
appendonly
)
rewriteAppendOnlyFileBackground
();
}
}
}
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录