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New API to force propagation.

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The old REDIS_CMD_FORCE_REPLICATION flag was removed from the
implementation of Redis, now there is a new API to force specific
executions of a command to be propagated to AOF / Replication link:

    void forceCommandPropagation(int flags);

The new API is also compatible with Lua scripting, so a script that will
execute commands that are forced to be propagated, will also be
propagated itself accordingly even if no change to data is operated.

As a side effect, this new design fixes the issue with scripts not able
to propagate PUBLISH to slaves (issue #873).
This commit is contained in:
antirez
2013-06-21 12:07:53 +02:00
parent b0c2cdd6a7
commit 515a26bbc1
4 changed files with 34 additions and 5 deletions
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src/pubsub.c
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@ -307,6 +307,7 @@ void punsubscribeCommand(redisClient *c) {
void publishCommand(redisClient *c) {
int receivers = pubsubPublishMessage(c->argv[1],c->argv[2]);
if (server.cluster_enabled) clusterPropagatePublish(c->argv[1],c->argv[2]);
forceCommandPropagation(c,REDIS_PROPAGATE_REPL);
addReplyLongLong(c,receivers);
}