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Added keyspace miss notifications support

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This commit is contained in:
Dvir Volk
2019-03-19 13:11:37 +02:00
parent 3eaa2cdc44
commit 8620a434a0
2 changed files with 28 additions and 8 deletions
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7
src/db.c
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@ -83,6 +83,7 @@ robj *lookupKey(redisDb *db, robj *key, int flags) {
* 1. A key gets expired if it reached it's TTL.
* 2. The key last access time is updated.
* 3. The global keys hits/misses stats are updated (reported in INFO).
* 4. If keyspace notifications are enabled, a "miss" notification is fired.
*
* This API should not be used when we write to the key after obtaining
* the object linked to the key, but only for read only operations.
@ -106,6 +107,7 @@ robj *lookupKeyReadWithFlags(redisDb *db, robj *key, int flags) {
* to return NULL ASAP. */
if (server.masterhost == NULL) {
server.stat_keyspace_misses++;
notifyKeyspaceEvent(NOTIFY_GENERIC, "miss", key, db->id);
return NULL;
}
@ -127,12 +129,15 @@ robj *lookupKeyReadWithFlags(redisDb *db, robj *key, int flags) {
server.current_client->cmd->flags & CMD_READONLY)
{
server.stat_keyspace_misses++;
notifyKeyspaceEvent(NOTIFY_GENERIC, "miss", key, db->id);
return NULL;
}
}
val = lookupKey(db,key,flags);
if (val == NULL)
if (val == NULL) {
server.stat_keyspace_misses++;
notifyKeyspaceEvent(NOTIFY_GENERIC, "miss", key, db->id);
}
else
server.stat_keyspace_hits++;
return val;