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https://github.com/fluencelabs/redis
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Cluster Manager: code cleanup.
This commit is contained in:
artix
parent
5bf13eaaf8
commit
eaac9f9e93
128
src/redis-cli.c
128
src/redis-cli.c
@ -2746,10 +2746,23 @@ cleanup:
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return success;
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}
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static int clusterManagerDelSlot(clusterManagerNode *node, int slot) {
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static int clusterManagerClearSlotStatus(clusterManagerNode *node, int slot) {
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redisReply *reply = CLUSTER_MANAGER_COMMAND(node,
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"CLUSTER SETSLOT %d %s", slot, "STABLE");
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int success = clusterManagerCheckRedisReply(node, reply, NULL);
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if (reply) freeReplyObject(reply);
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return success;
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}
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static int clusterManagerDelSlot(clusterManagerNode *node, int slot,
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int ignore_unassigned_err)
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{
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redisReply *reply = CLUSTER_MANAGER_COMMAND(node,
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"CLUSTER DELSLOTS %d", slot);
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int success = clusterManagerCheckRedisReply(node, reply, NULL);
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if (!success && reply && reply->type == REDIS_REPLY_ERROR &&
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ignore_unassigned_err &&
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strstr(reply->str, "already unassigned") != NULL) success = 1;
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if (reply) freeReplyObject(reply);
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return success;
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}
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@ -3658,24 +3671,18 @@ static int clusterManagerFixSlotsCoverage(char *all_slots) {
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listRewind(none, &li);
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while ((ln = listNext(&li)) != NULL) {
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sds slot = ln->value;
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int s = atoi(slot);
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clusterManagerNode *n = clusterManagerNodeMasterRandom();
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clusterManagerLogInfo(">>> Covering slot %s with %s:%d\n",
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slot, n->ip, n->port);
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/* Ensure the slot is not already assigned. */
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redisReply *r = CLUSTER_MANAGER_COMMAND(n,
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"CLUSTER DELSLOTS %s", slot);
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if (r) freeReplyObject(r);
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r = CLUSTER_MANAGER_COMMAND(n,
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"CLUSTER ADDSLOTS %s", slot);
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if (!clusterManagerCheckRedisReply(n, r, NULL)) fixed = -1;
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if (r) freeReplyObject(r);
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r = CLUSTER_MANAGER_COMMAND(n, "CLUSTER BUMPEPOCH");
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if (!clusterManagerCheckRedisReply(n, r, NULL)) fixed = -1;
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if (r) freeReplyObject(r);
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clusterManagerDelSlot(n, s, 1);
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if (!clusterManagerAddSlot(n, s)) fixed = -1;
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if (fixed >= 0 && !clusterManagerBumpEpoch(n)) fixed = -1;
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if (fixed < 0) goto cleanup;
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/* Since CLUSTER ADDSLOTS succeeded, we also update the slot
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* info into the node struct, in order to keep it synced */
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n->slots[atoi(slot)] = 1;
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n->slots[s] = 1;
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fixed++;
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}
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}
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@ -3691,6 +3698,7 @@ static int clusterManagerFixSlotsCoverage(char *all_slots) {
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listRewind(single, &li);
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while ((ln = listNext(&li)) != NULL) {
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sds slot = ln->value;
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int s = atoi(slot);
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dictEntry *entry = dictFind(clusterManagerUncoveredSlots, slot);
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assert(entry != NULL);
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list *nodes = (list *) dictGetVal(entry);
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@ -3700,16 +3708,9 @@ static int clusterManagerFixSlotsCoverage(char *all_slots) {
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clusterManagerLogInfo(">>> Covering slot %s with %s:%d\n",
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slot, n->ip, n->port);
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/* Ensure the slot is not already assigned. */
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redisReply *r = CLUSTER_MANAGER_COMMAND(n,
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"CLUSTER DELSLOTS %s", slot);
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if (r) freeReplyObject(r);
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r = CLUSTER_MANAGER_COMMAND(n,
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"CLUSTER ADDSLOTS %s", slot);
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if (!clusterManagerCheckRedisReply(n, r, NULL)) fixed = -1;
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if (r) freeReplyObject(r);
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r = CLUSTER_MANAGER_COMMAND(n, "CLUSTER BUMPEPOCH");
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if (!clusterManagerCheckRedisReply(n, r, NULL)) fixed = -1;
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if (r) freeReplyObject(r);
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clusterManagerDelSlot(n, s, 1);
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if (!clusterManagerAddSlot(n, s)) fixed = -1;
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if (fixed >= 0 && !clusterManagerBumpEpoch(n)) fixed = -1;
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if (fixed < 0) goto cleanup;
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/* Since CLUSTER ADDSLOTS succeeded, we also update the slot
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* info into the node struct, in order to keep it synced */
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@ -3744,21 +3745,12 @@ static int clusterManagerFixSlotsCoverage(char *all_slots) {
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"to %s:%d\n", slot,
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target->ip, target->port);
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/* Ensure the slot is not already assigned. */
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redisReply *r = CLUSTER_MANAGER_COMMAND(target,
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"CLUSTER DELSLOTS %s", slot);
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if (r) freeReplyObject(r);
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r = CLUSTER_MANAGER_COMMAND(target,
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"CLUSTER ADDSLOTS %s", slot);
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if (!clusterManagerCheckRedisReply(target, r, NULL)) fixed = -1;
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if (r) freeReplyObject(r);
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clusterManagerDelSlot(target, s, 1);
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if (!clusterManagerAddSlot(target, s)) fixed = -1;
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if (fixed < 0) goto cleanup;
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r = CLUSTER_MANAGER_COMMAND(target,
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"CLUSTER SETSLOT %s %s", slot, "STABLE");
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if (!clusterManagerCheckRedisReply(target, r, NULL)) fixed = -1;
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if (r) freeReplyObject(r);
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r = CLUSTER_MANAGER_COMMAND(target, "CLUSTER BUMPEPOCH");
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if (!clusterManagerCheckRedisReply(target, r, NULL)) fixed = -1;
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if (r) freeReplyObject(r);
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if (!clusterManagerClearSlotStatus(target, s))
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fixed = -1;
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if (fixed >= 0 && !clusterManagerBumpEpoch(target)) fixed = -1;
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if (fixed < 0) goto cleanup;
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/* Since CLUSTER ADDSLOTS succeeded, we also update the slot
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* info into the node struct, in order to keep it synced */
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@ -3770,23 +3762,15 @@ static int clusterManagerFixSlotsCoverage(char *all_slots) {
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clusterManagerNode *src = nln->value;
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if (src == target) continue;
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/* Assign the slot to target node in the source node. */
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redisReply *r = CLUSTER_MANAGER_COMMAND(src,
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"CLUSTER SETSLOT %s %s %s", slot,
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"NODE", target->name);
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if (!clusterManagerCheckRedisReply(src, r, NULL))
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if (!clusterManagerSetSlot(src, target, s, "NODE", NULL))
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fixed = -1;
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if (r) freeReplyObject(r);
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if (fixed < 0) goto cleanup;
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/* Set the source node in 'importing' state
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* (even if we will actually migrate keys away)
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* in order to avoid receiving redirections
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* for MIGRATE. */
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r = CLUSTER_MANAGER_COMMAND(src,
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"CLUSTER SETSLOT %s %s %s", slot,
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"IMPORTING", target->name);
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if (!clusterManagerCheckRedisReply(src, r, NULL))
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fixed = -1;
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if (r) freeReplyObject(r);
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if (!clusterManagerSetSlot(src, target, s,
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"IMPORTING", NULL)) fixed = -1;
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if (fixed < 0) goto cleanup;
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int opts = CLUSTER_MANAGER_OPT_VERBOSE |
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CLUSTER_MANAGER_OPT_COLD;
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@ -3794,12 +3778,8 @@ static int clusterManagerFixSlotsCoverage(char *all_slots) {
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fixed = -1;
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goto cleanup;
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}
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r = CLUSTER_MANAGER_COMMAND(src,
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"CLUSTER SETSLOT %s %s", slot,
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"STABLE");
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if (!clusterManagerCheckRedisReply(src, r, NULL))
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if (!clusterManagerClearSlotStatus(src, s))
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fixed = -1;
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if (r) freeReplyObject(r);
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if (fixed < 0) goto cleanup;
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}
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fixed++;
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@ -3923,24 +3903,13 @@ static int clusterManagerFixOpenSlot(int slot) {
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// Use ADDSLOTS to assign the slot.
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clusterManagerLogWarn("*** Configuring %s:%d as the slot owner\n",
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owner->ip, owner->port);
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redisReply *reply = CLUSTER_MANAGER_COMMAND(owner, "CLUSTER "
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"SETSLOT %d %s",
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slot, "STABLE");
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success = clusterManagerCheckRedisReply(owner, reply, NULL);
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if (reply) freeReplyObject(reply);
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success = clusterManagerClearSlotStatus(owner, slot);
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if (!success) goto cleanup;
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/* Ensure that the slot is unassigned before assigning it to the
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* owner. */
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reply = CLUSTER_MANAGER_COMMAND(owner, "CLUSTER DELSLOTS %d", slot);
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success = clusterManagerCheckRedisReply(owner, reply, NULL);
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/* Ignore "already unassigned" error. */
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if (!success && reply && reply->type == REDIS_REPLY_ERROR &&
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strstr(reply->str, "already unassigned") != NULL) success = 1;
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if (reply) freeReplyObject(reply);
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success = clusterManagerDelSlot(owner, slot, 1);
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if (!success) goto cleanup;
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reply = CLUSTER_MANAGER_COMMAND(owner, "CLUSTER ADDSLOTS %d", slot);
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success = clusterManagerCheckRedisReply(owner, reply, NULL);
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if (reply) freeReplyObject(reply);
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success = clusterManagerAddSlot(owner, slot);
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if (!success) goto cleanup;
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/* Since CLUSTER ADDSLOTS succeeded, we also update the slot
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* info into the node struct, in order to keep it synced */
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@ -3948,9 +3917,7 @@ static int clusterManagerFixOpenSlot(int slot) {
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/* Make sure this information will propagate. Not strictly needed
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* since there is no past owner, so all the other nodes will accept
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* whatever epoch this node will claim the slot with. */
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reply = CLUSTER_MANAGER_COMMAND(owner, "CLUSTER BUMPEPOCH");
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success = clusterManagerCheckRedisReply(owner, reply, NULL);
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if (reply) freeReplyObject(reply);
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success = clusterManagerBumpEpoch(owner);
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if (!success) goto cleanup;
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/* Remove the owner from the list of migrating/importing
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* nodes. */
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@ -3970,16 +3937,10 @@ static int clusterManagerFixOpenSlot(int slot) {
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* the owner has been set in the previous condition (owner == NULL). */
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assert(owner != NULL);
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listRewind(owners, &li);
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redisReply *reply = NULL;
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while ((ln = listNext(&li)) != NULL) {
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clusterManagerNode *n = ln->value;
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if (n == owner) continue;
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reply = CLUSTER_MANAGER_COMMAND(n, "CLUSTER DELSLOTS %d", slot);
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success = clusterManagerCheckRedisReply(n, reply, NULL);
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/* Ignore "already unassigned" error. */
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if (!success && reply && reply->type == REDIS_REPLY_ERROR &&
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strstr(reply->str, "already unassigned") != NULL) success = 1;
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if (reply) freeReplyObject(reply);
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success = clusterManagerDelSlot(n, slot, 1);
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if (!success) goto cleanup;
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n->slots[slot] = 0;
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/* Assign the slot to the owner in the node 'n' configuration.' */
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@ -4021,11 +3982,7 @@ static int clusterManagerFixOpenSlot(int slot) {
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if (!success) goto cleanup;
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clusterManagerLogInfo(">>> Setting %d as STABLE in "
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"%s:%d\n", slot, n->ip, n->port);
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redisReply *r = CLUSTER_MANAGER_COMMAND(n, "CLUSTER SETSLOT %d %s",
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slot, "STABLE");
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success = clusterManagerCheckRedisReply(n, r, NULL);
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if (r) freeReplyObject(r);
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success = clusterManagerClearSlotStatus(n, slot);
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if (!success) goto cleanup;
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}
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/* Since the slot has been moved in "cold" mode, ensure that all the
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@ -4035,10 +3992,7 @@ static int clusterManagerFixOpenSlot(int slot) {
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clusterManagerNode *n = ln->value;
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if (n == owner) continue;
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if (n->flags & CLUSTER_MANAGER_FLAG_SLAVE) continue;
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redisReply *r = CLUSTER_MANAGER_COMMAND(n,
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"CLUSTER SETSLOT %d %s %s", slot, "NODE", owner->name);
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success = clusterManagerCheckRedisReply(n, r, NULL);
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if (r) freeReplyObject(r);
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success = clusterManagerSetSlot(n, owner, slot, "NODE", NULL);
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if (!success) goto cleanup;
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}
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} else {
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@ -4104,7 +4058,7 @@ static int clusterManagerFixMultipleSlotOwners(int slot, list *owners) {
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* could reply with an "already unassigned" error and if it should fail
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* for other reasons, it would lead to a failure in the follwing ADDSLOTS
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* command. */
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clusterManagerDelSlot(owner, slot);
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clusterManagerDelSlot(owner, slot, 1);
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if (!clusterManagerAddSlot(owner, slot)) return 0;
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if (!clusterManagerBumpEpoch(owner)) return 0;
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listIter li;
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@ -4120,7 +4074,7 @@ static int clusterManagerFixMultipleSlotOwners(int slot, list *owners) {
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int count = clusterManagerCountKeysInSlot(n, slot);
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success = (count >= 0);
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if (!success) break;
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clusterManagerDelSlot(n, slot);
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clusterManagerDelSlot(n, slot, 1);
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if (!clusterManagerSetSlot(n, owner, slot, "node", NULL)) return 0;
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if (count > 0) {
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int opts = CLUSTER_MANAGER_OPT_VERBOSE |
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