gvsafronov/futriix
1
0
Fork 0
Code Issues Pull Requests Actions 3 Packages Projects Releases Wiki Activity

Cluster: verifyClusterConfigWithData() implemented.

Browse Source
This commit is contained in:
antirez 2013-02-25 11:43:49 +01:00
parent 9947b0d96d
commit a517c89321
1 changed files with 37 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
src/cluster.c
View File

@ -1299,6 +1299,43 @@ void clusterUpdateState(void) {
* about desynchronizations between the data we have in memory and the
* cluster configuration. */
int verifyClusterConfigWithData(void) {
int j;
int update_config = 0;
/* Make sure we only have keys in DB0. */
for (j = 1; j < server.dbnum; j++) {
if (dictSize(server.db[j].dict)) return REDIS_ERR;
}
/* Check that all the slots we see populated memory have a corresponding
* entry in the cluster table. Otherwise fix the table. */
for (j = 0; j < REDIS_CLUSTER_SLOTS; j++) {
if (!countKeysInSlot(j)) continue; /* No keys in this slot. */
/* Check if we are assigned to this slot or if we are importing it.
* In both cases check the next slot as the configuration makes
* sense. */
if (server.cluster->slots[j] == server.cluster->myself ||
server.cluster->importing_slots_from[j] != NULL) continue;
/* If we are here data and cluster config don't agree, and we have
* slot 'j' populated even if we are not importing it, nor we are
* assigned to this slot. Fix this condition. */
update_config++;
/* Case A: slot is unassigned. Take responsability for it. */
if (server.cluster->slots[j] == NULL) {
redisLog(REDIS_WARNING, "I've keys about slot %d that is "
"unassigned. Taking responsability "
"for it.",j);
clusterAddSlot(server.cluster->myself,j);
} else {
redisLog(REDIS_WARNING, "I've keys about slot %d that is "
"already assigned to a different node. "
"Setting it in importing state.",j);
server.cluster->importing_slots_from[j] = server.cluster->slots[j];
}
}
if (update_config) clusterSaveConfigOrDie();
return REDIS_OK;
}