/*============================ Utility functions ============================ */
void redisLog(int level, const char *fmt, ...) {
+ const int syslogLevelMap[] = { LOG_DEBUG, LOG_INFO, LOG_NOTICE, LOG_WARNING };
+ const char *c = ".-*#";
+ time_t now = time(NULL);
va_list ap;
FILE *fp;
- char *c = ".-*#";
char buf[64];
- time_t now;
+ char msg[REDIS_MAX_LOGMSG_LEN];
if (level < server.verbosity) return;
if (!fp) return;
va_start(ap, fmt);
- now = time(NULL);
- strftime(buf,64,"%d %b %H:%M:%S",localtime(&now));
- fprintf(fp,"[%d] %s %c ",(int)getpid(),buf,c[level]);
- vfprintf(fp, fmt, ap);
- fprintf(fp,"\n");
- fflush(fp);
+ vsnprintf(msg, sizeof(msg), fmt, ap);
va_end(ap);
+ strftime(buf,sizeof(buf),"%d %b %H:%M:%S",localtime(&now));
+ fprintf(fp,"[%d] %s %c %s\n",(int)getpid(),buf,c[level],msg);
+ fflush(fp);
+
if (server.logfile) fclose(fp);
+
+ if (server.syslog_enabled) syslog(syslogLevelMap[level], "%s", msg);
}
/* Redis generally does not try to recover from out of memory conditions
}
}
-/* Sets type */
+/* Sets type and diskstore negative caching hash table */
dictType setDictType = {
dictEncObjHash, /* hash function */
NULL, /* key dup */
}
updateDictResizePolicy();
}
- } else {
+ } else if (!server.ds_enabled) {
/* If there is not a background saving in progress check if
* we have to save now */
time_t now = time(NULL);
* in order to guarantee a strict consistency. */
if (server.masterhost == NULL) activeExpireCycle();
- /* Swap a few keys on disk if we are over the memory limit and VM
- * is enbled. Try to free objects from the free list first. */
- if (vmCanSwapOut()) {
- while (server.vm_enabled && zmalloc_used_memory() >
- server.vm_max_memory)
- {
- int retval = (server.vm_max_threads == 0) ?
- vmSwapOneObjectBlocking() :
- vmSwapOneObjectThreaded();
- if (retval == REDIS_ERR && !(loops % 300) &&
- zmalloc_used_memory() >
- (server.vm_max_memory+server.vm_max_memory/10))
- {
- redisLog(REDIS_WARNING,"WARNING: vm-max-memory limit exceeded by more than 10%% but unable to swap more objects out!");
- }
- /* Note that when using threade I/O we free just one object,
- * because anyway when the I/O thread in charge to swap this
- * object out will finish, the handler of completed jobs
- * will try to swap more objects if we are still out of memory. */
- if (retval == REDIS_ERR || server.vm_max_threads > 0) break;
- }
- }
+ /* Remove a few cached objects from memory if we are over the
+ * configured memory limit */
+ if (server.ds_enabled) cacheCron();
/* Replication cron function -- used to reconnect to master and
* to detect transfer failures. */
listNode *ln;
redisClient *c;
- /* Awake clients that got all the swapped keys they requested */
- if (server.vm_enabled && listLength(server.io_ready_clients)) {
+ /* Awake clients that got all the on disk keys they requested */
+ if (server.ds_enabled && listLength(server.io_ready_clients)) {
listIter li;
listRewind(server.io_ready_clients,&li);
/* Resume the client. */
listDelNode(server.io_ready_clients,ln);
c->flags &= (~REDIS_IO_WAIT);
- server.vm_blocked_clients--;
+ server.cache_blocked_clients--;
aeCreateFileEvent(server.el, c->fd, AE_READABLE,
readQueryFromClient, c);
cmd = lookupCommand(c->argv[0]->ptr);
server.saveparams = NULL;
server.loading = 0;
server.logfile = NULL; /* NULL = log on standard output */
+ server.syslog_enabled = 0;
+ server.syslog_ident = zstrdup("redis");
+ server.syslog_facility = LOG_LOCAL0;
server.glueoutputbuf = 1;
server.daemonize = 0;
server.appendonly = 0;
server.maxmemory = 0;
server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU;
server.maxmemory_samples = 3;
- server.vm_enabled = 0;
- server.vm_swap_file = zstrdup("/tmp/redis-%p.vm");
- server.vm_page_size = 256; /* 256 bytes per page */
- server.vm_pages = 1024*1024*100; /* 104 millions of pages */
- server.vm_max_memory = 1024LL*1024*1024*1; /* 1 GB of RAM */
- server.vm_max_threads = 4;
- server.vm_blocked_clients = 0;
+ server.ds_enabled = 0;
+ server.ds_path = sdsnew("/tmp/redis.ds");
+ server.cache_max_memory = 64LL*1024*1024; /* 64 MB of RAM */
+ server.cache_blocked_clients = 0;
server.hash_max_zipmap_entries = REDIS_HASH_MAX_ZIPMAP_ENTRIES;
server.hash_max_zipmap_value = REDIS_HASH_MAX_ZIPMAP_VALUE;
server.list_max_ziplist_entries = REDIS_LIST_MAX_ZIPLIST_ENTRIES;
signal(SIGPIPE, SIG_IGN);
setupSigSegvAction();
+ if (server.syslog_enabled) {
+ openlog(server.syslog_ident, LOG_PID | LOG_NDELAY | LOG_NOWAIT,
+ server.syslog_facility);
+ }
+
server.mainthread = pthread_self();
server.clients = listCreate();
server.slaves = listCreate();
server.monitors = listCreate();
server.unblocked_clients = listCreate();
+ server.cache_flush_queue = listCreate();
+ server.cache_flush_delay = 0;
+
createSharedObjects();
server.el = aeCreateEventLoop();
server.db = zmalloc(sizeof(redisDb)*server.dbnum);
server.db[j].expires = dictCreate(&keyptrDictType,NULL);
server.db[j].blocking_keys = dictCreate(&keylistDictType,NULL);
server.db[j].watched_keys = dictCreate(&keylistDictType,NULL);
- if (server.vm_enabled)
+ if (server.ds_enabled) {
server.db[j].io_keys = dictCreate(&keylistDictType,NULL);
+ server.db[j].io_negcache = dictCreate(&setDictType,NULL);
+ }
server.db[j].id = j;
}
server.pubsub_channels = dictCreate(&keylistDictType,NULL);
server.stat_numcommands = 0;
server.stat_numconnections = 0;
server.stat_expiredkeys = 0;
+ server.stat_evictedkeys = 0;
server.stat_starttime = time(NULL);
server.stat_keyspace_misses = 0;
server.stat_keyspace_hits = 0;
}
}
- if (server.vm_enabled) vmInit();
+ if (server.ds_enabled) dsInit();
}
/* Populates the Redis Command Table starting from the hard coded list
queueMultiCommand(c,cmd);
addReply(c,shared.queued);
} else {
- if (server.vm_enabled && server.vm_max_threads > 0 &&
- blockClientOnSwappedKeys(c,cmd)) return REDIS_ERR;
+ if (server.ds_enabled && blockClientOnSwappedKeys(c,cmd))
+ return REDIS_ERR;
call(c,cmd);
}
return REDIS_OK;
kill(server.bgsavechildpid,SIGKILL);
rdbRemoveTempFile(server.bgsavechildpid);
}
- if (server.appendonly) {
+ if (server.ds_enabled) {
+ /* FIXME: flush all objects on disk */
+ } else if (server.appendonly) {
/* Append only file: fsync() the AOF and exit */
aof_fsync(server.appendfd);
- if (server.vm_enabled) unlink(server.vm_swap_file);
} else if (server.saveparamslen > 0) {
/* Snapshotting. Perform a SYNC SAVE and exit */
if (rdbSave(server.dbfilename) != REDIS_OK) {
"total_connections_received:%lld\r\n"
"total_commands_processed:%lld\r\n"
"expired_keys:%lld\r\n"
+ "evicted_keys:%lld\r\n"
"keyspace_hits:%lld\r\n"
"keyspace_misses:%lld\r\n"
"hash_max_zipmap_entries:%zu\r\n"
"hash_max_zipmap_value:%zu\r\n"
"pubsub_channels:%ld\r\n"
"pubsub_patterns:%u\r\n"
- "vm_enabled:%d\r\n"
+ "ds_enabled:%d\r\n"
"role:%s\r\n"
,REDIS_VERSION,
redisGitSHA1(),
server.stat_numconnections,
server.stat_numcommands,
server.stat_expiredkeys,
+ server.stat_evictedkeys,
server.stat_keyspace_hits,
server.stat_keyspace_misses,
server.hash_max_zipmap_entries,
server.hash_max_zipmap_value,
dictSize(server.pubsub_channels),
listLength(server.pubsub_patterns),
- server.vm_enabled != 0,
+ server.ds_enabled != 0,
server.masterhost == NULL ? "master" : "slave"
);
if (server.masterhost) {
);
}
}
- if (server.vm_enabled) {
+ if (server.ds_enabled) {
lockThreadedIO();
info = sdscatprintf(info,
- "vm_conf_max_memory:%llu\r\n"
- "vm_conf_page_size:%llu\r\n"
- "vm_conf_pages:%llu\r\n"
- "vm_stats_used_pages:%llu\r\n"
- "vm_stats_swapped_objects:%llu\r\n"
- "vm_stats_swappin_count:%llu\r\n"
- "vm_stats_swappout_count:%llu\r\n"
- "vm_stats_io_newjobs_len:%lu\r\n"
- "vm_stats_io_processing_len:%lu\r\n"
- "vm_stats_io_processed_len:%lu\r\n"
- "vm_stats_io_active_threads:%lu\r\n"
- "vm_stats_blocked_clients:%lu\r\n"
- ,(unsigned long long) server.vm_max_memory,
- (unsigned long long) server.vm_page_size,
- (unsigned long long) server.vm_pages,
- (unsigned long long) server.vm_stats_used_pages,
- (unsigned long long) server.vm_stats_swapped_objects,
- (unsigned long long) server.vm_stats_swapins,
- (unsigned long long) server.vm_stats_swapouts,
- (unsigned long) listLength(server.io_newjobs),
- (unsigned long) listLength(server.io_processing),
- (unsigned long) listLength(server.io_processed),
- (unsigned long) server.io_active_threads,
- (unsigned long) server.vm_blocked_clients
+ "cache_max_memory:%llu\r\n"
+ "cache_blocked_clients:%lu\r\n"
+ ,(unsigned long long) server.cache_max_memory,
+ (unsigned long) server.cache_blocked_clients
);
unlockThreadedIO();
}
if (bestkey) {
robj *keyobj = createStringObject(bestkey,sdslen(bestkey));
dbDelete(db,keyobj);
- server.stat_expiredkeys++;
+ server.stat_evictedkeys++;
decrRefCount(keyobj);
freed++;
}
}
if (!freed) return; /* nothing to free... */
}
-
- while(0) {
- int j, k, freed = 0;
- for (j = 0; j < server.dbnum; j++) {
- int minttl = -1;
- sds minkey = NULL;
- robj *keyobj = NULL;
- struct dictEntry *de;
-
- if (dictSize(server.db[j].expires)) {
- freed = 1;
- /* From a sample of three keys drop the one nearest to
- * the natural expire */
- for (k = 0; k < 3; k++) {
- time_t t;
-
- de = dictGetRandomKey(server.db[j].expires);
- t = (time_t) dictGetEntryVal(de);
- if (minttl == -1 || t < minttl) {
- minkey = dictGetEntryKey(de);
- minttl = t;
- }
- }
- keyobj = createStringObject(minkey,sdslen(minkey));
- dbDelete(server.db+j,keyobj);
- server.stat_expiredkeys++;
- decrRefCount(keyobj);
- }
- }
- if (!freed) return; /* nothing to free... */
- }
}
/* =================================== Main! ================================ */
linuxOvercommitMemoryWarning();
#endif
start = time(NULL);
- if (server.appendonly) {
+ if (server.ds_enabled) {
+ redisLog(REDIS_NOTICE,"DB not loaded (running with disk back end)");
+ } else if (server.appendonly) {
if (loadAppendOnlyFile(server.appendfilename) == REDIS_OK)
redisLog(REDIS_NOTICE,"DB loaded from append only file: %ld seconds",time(NULL)-start);
} else {
projects / redis.git / blobdiff