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Cluster: remove node from master slaves when it turns into a master.

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Also, a few nearby comments improved.
This commit is contained in:
antirez 2013-03-15 16:15:40 +01:00
parent 44c92f5aeb
commit 004fbef847
1 changed files with 7 additions and 3 deletions
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10
src/cluster.c
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@ -877,11 +877,13 @@ int clusterProcessPacket(clusterLink *link) {
/* Update our info about the node */ /* Update our info about the node */
if (link->node) link->node->pong_received = time(NULL); if (link->node) link->node->pong_received = time(NULL);
/* Update master/slave info */ /* Update master/slave state */
if (sender) { if (sender) {
if (!memcmp(hdr->slaveof,REDIS_NODE_NULL_NAME, if (!memcmp(hdr->slaveof,REDIS_NODE_NULL_NAME,
sizeof(hdr->slaveof))) sizeof(hdr->slaveof)))
{ {
if (sender->slaveof)
clusterNodeRemoveSlave(sender->slaveof,sender);
sender->flags &= ~REDIS_NODE_SLAVE; sender->flags &= ~REDIS_NODE_SLAVE;
sender->flags |= REDIS_NODE_MASTER; sender->flags |= REDIS_NODE_MASTER;
sender->slaveof = NULL; sender->slaveof = NULL;
@ -898,7 +900,9 @@ int clusterProcessPacket(clusterLink *link) {
} }
} }
/* Update our info about served slots. */ /* Update our info about served slots.
* Note: this MUST happen after we update the master/slave state
* so that REDIS_NODE_MASTER flag will be set. */
if (sender && sender->flags & REDIS_NODE_MASTER) { if (sender && sender->flags & REDIS_NODE_MASTER) {
int changes, j; int changes, j;
@ -909,7 +913,7 @@ int clusterProcessPacket(clusterLink *link) {
if (bitmapTestBit(hdr->myslots,j)) { if (bitmapTestBit(hdr->myslots,j)) {
/* If this slot was not served, or served by a node /* If this slot was not served, or served by a node
* in FAIL state, update the table with the new node * in FAIL state, update the table with the new node
* caliming to serve the slot. */ * claiming to serve the slot. */
if (server.cluster->slots[j] == sender) continue; if (server.cluster->slots[j] == sender) continue;
if (server.cluster->slots[j] == NULL || if (server.cluster->slots[j] == NULL ||
server.cluster->slots[j]->flags & REDIS_NODE_FAIL) server.cluster->slots[j]->flags & REDIS_NODE_FAIL)