DEBUG POPULATE two args form implemented.

The old DEBUG POPULATE form for automatic creation of test keys is:

    DEBUG POPULATE <count>

Now an additional form is available:

    DEBUG POPULATE <count> <prefix>

When prefix is not specified, it defaults to "key", so the keys are
named incrementally from key:0 to key:<count-1>. Otherwise the specified
prefix is used instead of "key".

The command is useful in order to populate different Redis instances
with key names guaranteed to don't collide. There are other debugging
uses, for example it is possible to add additional N keys using a count
of N and a random prefix at every call.
This commit is contained in:
antirez 2014-09-25 17:01:56 +02:00
parent 35a8302b7c
commit d4222e6bee

View File

@ -325,7 +325,8 @@ void debugCommand(redisClient *c) {
(long long) sdslen(val->ptr),
(long long) sdsavail(val->ptr));
}
} else if (!strcasecmp(c->argv[1]->ptr,"populate") && c->argc == 3) {
} else if (!strcasecmp(c->argv[1]->ptr,"populate") &&
(c->argc == 3 || c->argc == 4)) {
long keys, j;
robj *key, *val;
char buf[128];
@ -334,7 +335,8 @@ void debugCommand(redisClient *c) {
return;
dictExpand(c->db->dict,keys);
for (j = 0; j < keys; j++) {
snprintf(buf,sizeof(buf),"key:%lu",j);
snprintf(buf,sizeof(buf),"%s:%lu",
(c->argc == 3) ? "key" : c->argv[3]->ptr, j);
key = createStringObject(buf,strlen(buf));
if (lookupKeyRead(c->db,key) != NULL) {
decrRefCount(key);