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fixed diskstore race condition

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antirez 2011-03-10 16:39:19 +01:00
parent dc75b1edfb
commit 7493d2a032
1 changed files with 10 additions and 2 deletions
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12
src/dscache.c
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@ -890,8 +890,16 @@ int waitForSwappedKey(redisClient *c, robj *key) {
listAddNodeTail(l,c);
/* Are we already loading the key from disk? If not create a job */
if (de == NULL)
cacheScheduleIO(c->db,key,REDIS_IO_LOAD);
if (de == NULL) {
int flags = cacheScheduleIOGetFlags(c->db,key);
/* It is possible that even if there are no clients waiting for
* a load operation, still we have a load operation in progress.
* For instance think to a client performing a GET and then
* closing the connection */
if ((flags & (REDIS_IO_LOAD|REDIS_IO_LOADINPROG)) == 0)
cacheScheduleIO(c->db,key,REDIS_IO_LOAD);
}
return 1;
}