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Cluster: more chatty slaves when failover is stalled.

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This commit is contained in:
antirez
2014-10-07 09:51:55 +02:00
parent e4b0c8ec50
commit edb3987a06
2 changed files with 94 additions and 4 deletions
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10
src/cluster.h
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@ -62,6 +62,14 @@ typedef struct clusterLink {
#define nodeTimedOut(n) ((n)->flags & REDIS_NODE_PFAIL)
#define nodeFailed(n) ((n)->flags & REDIS_NODE_FAIL)
/* Reasons why a slave is not able to failover. */
#define REDIS_CLUSTER_CANT_FAILOVER_NONE 0
#define REDIS_CLUSTER_CANT_FAILOVER_DATA_AGE 1
#define REDIS_CLUSTER_CANT_FAILOVER_WAITING_DELAY 2
#define REDIS_CLUSTER_CANT_FAILOVER_EXPIRED 3
#define REDIS_CLUSTER_CANT_FAILOVER_WAITING_VOTES 4
#define REDIS_CLUSTER_CANT_FAILOVER_RELOG_PERIOD (60*5) /* seconds. */
/* This structure represent elements of node->fail_reports. */
typedef struct clusterNodeFailReport {
struct clusterNode *node; /* Node reporting the failure condition. */
@ -107,6 +115,8 @@ typedef struct clusterState {
int failover_auth_sent; /* True if we already asked for votes. */
int failover_auth_rank; /* This slave rank for current auth request. */
uint64_t failover_auth_epoch; /* Epoch of the current election. */
int cant_failover_reason; /* Why a slave is currently not able to
failover. See the CANT_FAILOVER_* macros. */
/* Manual failover state in common. */
mstime_t mf_end; /* Manual failover time limit (ms unixtime).
It is zero if there is no MF in progress. */