mirror of
https://github.com/fluencelabs/redis
synced 2025-03-18 16:40:50 +00:00
Cluster: configEpoch added in cluster nodes description.
This commit is contained in:
parent
da257afe57
commit
12483b0061
@ -59,6 +59,23 @@ int bitmapTestBit(unsigned char *bitmap, int pos);
|
||||
* Initialization
|
||||
* -------------------------------------------------------------------------- */
|
||||
|
||||
/* This function is called at startup in order to set the currentEpoch
|
||||
* (which is not saved on permanent storage) to the greatest configEpoch found
|
||||
* in the loaded nodes (configEpoch is stored on permanent storage as soon as
|
||||
* it changes for some node). */
|
||||
void clusterSetStartupEpoch() {
|
||||
dictIterator *di;
|
||||
dictEntry *de;
|
||||
|
||||
di = dictGetSafeIterator(server.cluster->nodes);
|
||||
while((de = dictNext(di)) != NULL) {
|
||||
clusterNode *node = dictGetVal(de);
|
||||
if (node->configEpoch > server.cluster->currentEpoch)
|
||||
server.cluster->currentEpoch = node->configEpoch;
|
||||
}
|
||||
dictReleaseIterator(di);
|
||||
}
|
||||
|
||||
int clusterLoadConfig(char *filename) {
|
||||
FILE *fp = fopen(filename,"r");
|
||||
char *line;
|
||||
@ -143,8 +160,11 @@ int clusterLoadConfig(char *filename) {
|
||||
if (atoi(argv[4])) n->ping_sent = time(NULL);
|
||||
if (atoi(argv[5])) n->pong_received = time(NULL);
|
||||
|
||||
/* Set configEpoch for this node. */
|
||||
n->configEpoch = strtoull(argv[6],NULL,10);
|
||||
|
||||
/* Populate hash slots served by this instance. */
|
||||
for (j = 7; j < argc; j++) {
|
||||
for (j = 8; j < argc; j++) {
|
||||
int start, stop;
|
||||
|
||||
if (argv[j][0] == '[') {
|
||||
@ -189,6 +209,7 @@ int clusterLoadConfig(char *filename) {
|
||||
redisAssert(server.cluster->myself != NULL);
|
||||
redisLog(REDIS_NOTICE,"Node configuration loaded, I'm %.40s",
|
||||
server.cluster->myself->name);
|
||||
clusterSetStartupEpoch();
|
||||
clusterUpdateState();
|
||||
return REDIS_OK;
|
||||
|
||||
@ -230,6 +251,7 @@ void clusterInit(void) {
|
||||
|
||||
server.cluster = zmalloc(sizeof(clusterState));
|
||||
server.cluster->myself = NULL;
|
||||
server.cluster->currentEpoch = 0;
|
||||
server.cluster->state = REDIS_CLUSTER_FAIL;
|
||||
server.cluster->size = 1;
|
||||
server.cluster->nodes = dictCreate(&clusterNodesDictType,NULL);
|
||||
@ -360,6 +382,7 @@ clusterNode *createClusterNode(char *nodename, int flags) {
|
||||
else
|
||||
getRandomHexChars(node->name, REDIS_CLUSTER_NAMELEN);
|
||||
node->ctime = time(NULL);
|
||||
node->configEpoch = 0;
|
||||
node->flags = flags;
|
||||
memset(node->slots,0,sizeof(node->slots));
|
||||
node->numslots = 0;
|
||||
@ -2071,9 +2094,10 @@ sds clusterGenNodesDescription(int filter) {
|
||||
ci = sdscatprintf(ci,"- ");
|
||||
|
||||
/* Latency from the POV of this node, link status */
|
||||
ci = sdscatprintf(ci,"%ld %ld %s",
|
||||
ci = sdscatprintf(ci,"%ld %ld %llu %s",
|
||||
(long) node->ping_sent,
|
||||
(long) node->pong_received,
|
||||
(unsigned long long) node->configEpoch,
|
||||
(node->link || node->flags & REDIS_NODE_MYSELF) ?
|
||||
"connected" : "disconnected");
|
||||
|
||||
|
@ -617,6 +617,7 @@ struct clusterNode {
|
||||
time_t ctime; /* Node object creation time. */
|
||||
char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */
|
||||
int flags; /* REDIS_NODE_... */
|
||||
uint64_t configEpoch; /* Last configEpoch observed for this node */
|
||||
unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */
|
||||
int numslots; /* Number of slots handled by this node */
|
||||
int numslaves; /* Number of slave nodes, if this is a master */
|
||||
@ -634,6 +635,7 @@ typedef struct clusterNode clusterNode;
|
||||
|
||||
typedef struct {
|
||||
clusterNode *myself; /* This node */
|
||||
uint64_t currentEpoch;
|
||||
int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */
|
||||
int size; /* Num of master nodes with at least one slot */
|
||||
dict *nodes; /* Hash table of name -> clusterNode structures */
|
||||
@ -707,6 +709,9 @@ typedef struct {
|
||||
uint64_t time; /* Time at which this request was sent (in milliseconds),
|
||||
this field is copied in reply messages so that the
|
||||
original sender knows how old the reply is. */
|
||||
uint64_t currentEpoch; /* The epoch accordingly to the sending node. */
|
||||
uint64_t configEpoch; /* The config epoch if it's a master, or the last epoch
|
||||
advertised by its master if it is a slave. */
|
||||
char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */
|
||||
unsigned char myslots[REDIS_CLUSTER_SLOTS/8];
|
||||
char slaveof[REDIS_CLUSTER_NAMELEN];
|
||||
|
Loading…
x
Reference in New Issue
Block a user