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ruanhaishen
redis
Commits
e6b9d5e9
Commit
e6b9d5e9
authored
Nov 12, 2013
by
antirez
Browse files
Sentinel: +new-epoch events.
parent
54c447be
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/sentinel.c
View file @
e6b9d5e9
...
...
@@ -1724,8 +1724,11 @@ void sentinelReceiveHelloMessages(redisAsyncContext *c, void *reply, void *privd
}
/* Update local current_epoch if received current_epoch is greater. */
if
(
current_epoch
>
sentinel
.
current_epoch
)
if
(
current_epoch
>
sentinel
.
current_epoch
)
{
sentinel
.
current_epoch
=
current_epoch
;
sentinelEvent
(
REDIS_WARNING
,
"+new-epoch"
,
ri
,
"%llu"
,
(
unsigned
long
long
)
sentinel
.
current_epoch
);
}
/* Update master info if received configuration is newer. */
if
((
msgmaster
=
sentinelGetMasterByName
(
token
[
5
]))
!=
NULL
)
{
...
...
@@ -2399,15 +2402,18 @@ int compareRunID(const void *a, const void *b) {
* If a vote is not available returns NULL, otherwise return the Sentinel
* runid and populate the leader_epoch with the epoch of the last vote. */
char
*
sentinelVoteLeader
(
sentinelRedisInstance
*
master
,
uint64_t
req_epoch
,
char
*
req_runid
,
uint64_t
*
leader_epoch
)
{
if
(
req_epoch
>
sentinel
.
current_epoch
)
if
(
req_epoch
>
sentinel
.
current_epoch
)
{
sentinel
.
current_epoch
=
req_epoch
;
sentinelEvent
(
REDIS_WARNING
,
"+new-epoch"
,
master
,
"%llu"
,
(
unsigned
long
long
)
sentinel
.
current_epoch
);
}
if
(
master
->
leader_epoch
<
req_epoch
&&
sentinel
.
current_epoch
<=
req_epoch
)
{
sdsfree
(
master
->
leader
);
master
->
leader
=
sdsnew
(
req_runid
);
master
->
leader_epoch
=
sentinel
.
current_epoch
;
printf
(
"Selected leader %s for epoch %llu
\n
"
,
master
->
leader
,
(
unsigned
long
long
)
master
->
leader_epoch
);
sentinelEvent
(
REDIS_WARNING
,
"+vote-for-leader
"
,
master
,
"%s %llu"
,
master
->
leader
,
(
unsigned
long
long
)
master
->
leader_epoch
);
}
*
leader_epoch
=
master
->
leader_epoch
;
...
...
@@ -2539,7 +2545,9 @@ void sentinelStartFailover(sentinelRedisInstance *master) {
master
->
failover_state
=
SENTINEL_FAILOVER_STATE_WAIT_START
;
master
->
flags
|=
SRI_FAILOVER_IN_PROGRESS
;
master
->
failover_epoch
=
++
sentinel
.
current_epoch
;
sentinelEvent
(
REDIS_WARNING
,
"+failover-triggered"
,
master
,
"%@"
);
sentinelEvent
(
REDIS_WARNING
,
"+new-epoch"
,
master
,
"%llu"
,
(
unsigned
long
long
)
sentinel
.
current_epoch
);
sentinelEvent
(
REDIS_WARNING
,
"+try-failover"
,
master
,
"%@"
);
master
->
failover_start_time
=
mstime
();
master
->
failover_state_change_time
=
mstime
();
}
...
...
@@ -2658,6 +2666,7 @@ void sentinelFailoverWaitStart(sentinelRedisInstance *ri) {
/* If I'm not the leader, I can't continue with the failover. */
if
(
!
isleader
)
return
;
sentinelEvent
(
REDIS_WARNING
,
"+elected-leader"
,
ri
,
"%@"
);
/* Start the failover going to the next state if enough time has
* elapsed. */
...
...
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