fluencelabs/redis
1
0
Fork 0
mirror of https://github.com/fluencelabs/redis synced 2025-06-15 18:21:21 +00:00
Code Issues Projects Releases Wiki Activity

First implementation of the ASKING command. Semantics still to verify.

Browse Source
This commit is contained in:
antirez
2011-10-17 17:35:23 +02:00
parent e0aab1fc79
commit 6856c7b4d6
4 changed files with 23 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/cluster.c
View File

@ -1657,6 +1657,19 @@ void dumpCommand(redisClient *c) {
return;
}
/* The ASKING command is required after a -ASK redirection.
* The client should issue ASKING before to actualy send the command to
* the target instance. See the Redis Cluster specification for more
* information. */
void askingCommand(redisClient *c) {
if (server.cluster_enabled == 0) {
addReplyError(c,"This instance has cluster support disabled");
return;
}
c->flags |= REDIS_ASKING;
addReply(c,shared.ok);
}
/* -----------------------------------------------------------------------------
* Cluster functions related to serving / redirecting clients
* -------------------------------------------------------------------------- */
@ -1750,9 +1763,12 @@ clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **arg
}
/* Handle the case in which we are receiving this hash slot from
* another instance, so we'll accept the query even if in the table
* it is assigned to a different node. */
if (server.cluster.importing_slots_from[slot] != NULL)
* it is assigned to a different node, but only if the client
* issued an ASKING command before. */
if (server.cluster.importing_slots_from[slot] != NULL &&
c->flags & REDIS_ASKING) {
return server.cluster.myself;
}
/* It's not a -ASK case. Base case: just return the right node. */
return n;
}