#define REDIS_MAXIDLETIME (60*5) /* default client timeout */
#define REDIS_IOBUF_LEN 1024
#define REDIS_LOADBUF_LEN 1024
-#define REDIS_STATIC_ARGS 4
+#define REDIS_STATIC_ARGS 8
#define REDIS_DEFAULT_DBNUM 16
#define REDIS_CONFIGLINE_MAX 1024
#define REDIS_OBJFREELIST_MAX 1000000 /* Max number of objects to cache */
#define REDIS_MAX_SYNC_TIME 60 /* Slave can't take more to sync */
-#define REDIS_EXPIRELOOKUPS_PER_CRON 100 /* try to expire 100 keys/second */
+#define REDIS_EXPIRELOOKUPS_PER_CRON 10 /* try to expire 10 keys/loop */
#define REDIS_MAX_WRITE_PER_EVENT (1024*64)
#define REDIS_REQUEST_MAX_SIZE (1024*1024*256) /* max bytes in inline command */
time_t stat_starttime; /* server start time */
long long stat_numcommands; /* number of processed commands */
long long stat_numconnections; /* number of connections received */
+ long long stat_expiredkeys; /* number of expired keys */
/* Configuration */
int verbosity;
int glueoutputbuf;
robj *val; /* the value to swap for REDIS_IOREQ_*_SWAP, otherwise this
* field is populated by the I/O thread for REDIS_IOREQ_LOAD. */
off_t page; /* Swap page where to read/write the object */
- off_t pages; /* Swap pages needed to safe object. PREPARE_SWAP return val */
+ off_t pages; /* Swap pages needed to save object. PREPARE_SWAP return val */
int canceled; /* True if this command was canceled by blocking side of VM */
pthread_t thread; /* ID of the thread processing this entry */
} iojob;
static int rdbSaveBackground(char *filename);
static robj *createStringObject(char *ptr, size_t len);
static robj *dupStringObject(robj *o);
-static void replicationFeedSlaves(list *slaves, struct redisCommand *cmd, int dictid, robj **argv, int argc);
+static void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc);
static void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int argc);
static int syncWithMaster(void);
static robj *tryObjectSharing(robj *o);
static void hvalsCommand(redisClient *c);
static void hgetallCommand(redisClient *c);
static void hexistsCommand(redisClient *c);
+static void configCommand(redisClient *c);
/*================================= Globals ================================= */
{"ttl",ttlCommand,2,REDIS_CMD_INLINE,NULL,1,1,1},
{"slaveof",slaveofCommand,3,REDIS_CMD_INLINE,NULL,0,0,0},
{"debug",debugCommand,-2,REDIS_CMD_INLINE,NULL,0,0,0},
+ {"config",configCommand,-2,REDIS_CMD_BULK,NULL,0,0,0},
{NULL,NULL,0,0,NULL,0,0,0}
};
/*============================ Utility functions ============================ */
/* Glob-style pattern matching. */
-int stringmatchlen(const char *pattern, int patternLen,
+static int stringmatchlen(const char *pattern, int patternLen,
const char *string, int stringLen, int nocase)
{
while(patternLen) {
return 0;
}
+static int stringmatch(const char *pattern, const char *string, int nocase) {
+ return stringmatchlen(pattern,strlen(pattern),string,strlen(string),nocase);
+}
+
static void redisLog(int level, const char *fmt, ...) {
va_list ap;
FILE *fp;
size = dictSlots(server.db[j].dict);
used = dictSize(server.db[j].dict);
vkeys = dictSize(server.db[j].expires);
- if (!(loops % 5) && (used || vkeys)) {
+ if (!(loops % 50) && (used || vkeys)) {
redisLog(REDIS_VERBOSE,"DB %d: %lld keys (%lld volatile) in %lld slots HT.",j,used,vkeys,size);
/* dictPrintStats(server.dict); */
}
* if we resize the HT while there is the saving child at work actually
* a lot of memory movements in the parent will cause a lot of pages
* copied. */
- if (server.bgsavechildpid == -1) tryResizeHashTables();
+ if (server.bgsavechildpid == -1 && !(loops % 10)) tryResizeHashTables();
/* Show information about connected clients */
- if (!(loops % 5)) {
+ if (!(loops % 50)) {
redisLog(REDIS_VERBOSE,"%d clients connected (%d slaves), %zu bytes in use, %d shared objects",
listLength(server.clients)-listLength(server.slaves),
listLength(server.slaves),
}
/* Close connections of timedout clients */
- if ((server.maxidletime && !(loops % 10)) || server.blpop_blocked_clients)
+ if ((server.maxidletime && !(loops % 100)) || server.blpop_blocked_clients)
closeTimedoutClients();
/* Check if a background saving or AOF rewrite in progress terminated */
if (now > t) {
deleteKey(db,dictGetEntryKey(de));
expired++;
+ server.stat_expiredkeys++;
}
}
} while (expired > REDIS_EXPIRELOOKUPS_PER_CRON/4);
retval = (server.vm_max_threads == 0) ?
vmSwapOneObjectBlocking() :
vmSwapOneObjectThreaded();
- if (retval == REDIS_ERR && (loops % 30) == 0 &&
+ if (retval == REDIS_ERR && !(loops % 300) &&
zmalloc_used_memory() >
(server.vm_max_memory+server.vm_max_memory/10))
{
}
/* Check if we should connect to a MASTER */
- if (server.replstate == REDIS_REPL_CONNECT) {
+ if (server.replstate == REDIS_REPL_CONNECT && !(loops % 10)) {
redisLog(REDIS_NOTICE,"Connecting to MASTER...");
if (syncWithMaster() == REDIS_OK) {
redisLog(REDIS_NOTICE,"MASTER <-> SLAVE sync succeeded");
}
}
- return 1000;
+ return 100;
}
/* This function gets called every time Redis is entering the
server.lastfsync = time(NULL);
server.appendfd = -1;
server.appendseldb = -1; /* Make sure the first time will not match */
- server.pidfile = "/var/run/redis.pid";
- server.dbfilename = "dump.rdb";
- server.appendfilename = "appendonly.aof";
+ server.pidfile = zstrdup("/var/run/redis.pid");
+ server.dbfilename = zstrdup("dump.rdb");
+ server.appendfilename = zstrdup("appendonly.aof");
server.requirepass = NULL;
server.shareobjects = 0;
server.rdbcompression = 1;
server.dirty = 0;
server.stat_numcommands = 0;
server.stat_numconnections = 0;
+ server.stat_expiredkeys = 0;
server.stat_starttime = time(NULL);
server.unixtime = time(NULL);
aeCreateTimeEvent(server.el, 1, serverCron, NULL, NULL);
} else if (!strcasecmp(argv[0],"requirepass") && argc == 2) {
server.requirepass = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"pidfile") && argc == 2) {
+ zfree(server.pidfile);
server.pidfile = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"dbfilename") && argc == 2) {
+ zfree(server.dbfilename);
server.dbfilename = zstrdup(argv[1]);
} else if (!strcasecmp(argv[0],"vm-enabled") && argc == 2) {
if ((server.vm_enabled = yesnotoi(argv[1])) == -1) {
if (server.appendonly && server.dirty-dirty)
feedAppendOnlyFile(cmd,c->db->id,c->argv,c->argc);
if (server.dirty-dirty && listLength(server.slaves))
- replicationFeedSlaves(server.slaves,cmd,c->db->id,c->argv,c->argc);
+ replicationFeedSlaves(server.slaves,c->db->id,c->argv,c->argc);
if (listLength(server.monitors))
- replicationFeedSlaves(server.monitors,cmd,c->db->id,c->argv,c->argc);
+ replicationFeedSlaves(server.monitors,c->db->id,c->argv,c->argc);
server.stat_numcommands++;
}
cmd->name));
resetClient(c);
return 1;
- } else if (server.maxmemory && cmd->flags & REDIS_CMD_DENYOOM && zmalloc_used_memory() > server.maxmemory) {
- addReplySds(c,sdsnew("-ERR command not allowed when used memory > 'maxmemory'\r\n"));
- resetClient(c);
- return 1;
} else if (cmd->flags & REDIS_CMD_BULK && c->bulklen == -1) {
/* This is a bulk command, we have to read the last argument yet. */
int bulklen = atoi(c->argv[c->argc-1]->ptr);
return 1;
}
+ /* Handle the maxmemory directive */
+ if (server.maxmemory && (cmd->flags & REDIS_CMD_DENYOOM) &&
+ zmalloc_used_memory() > server.maxmemory)
+ {
+ addReplySds(c,sdsnew("-ERR command not allowed when used memory > 'maxmemory'\r\n"));
+ resetClient(c);
+ return 1;
+ }
+
/* Exec the command */
if (c->flags & REDIS_MULTI && cmd->proc != execCommand && cmd->proc != discardCommand) {
queueMultiCommand(c,cmd);
return 1;
}
-static void replicationFeedSlaves(list *slaves, struct redisCommand *cmd, int dictid, robj **argv, int argc) {
+static void replicationFeedSlaves(list *slaves, int dictid, robj **argv, int argc) {
listNode *ln;
listIter li;
int outc = 0, j;
robj **outv;
- /* (args*2)+1 is enough room for args, spaces, newlines */
- robj *static_outv[REDIS_STATIC_ARGS*2+1];
+ /* We need 1+(ARGS*3) objects since commands are using the new protocol
+ * and we one 1 object for the first "*<count>\r\n" multibulk count, then
+ * for every additional object we have "$<count>\r\n" + object + "\r\n". */
+ robj *static_outv[REDIS_STATIC_ARGS*3+1];
+ robj *lenobj;
if (argc <= REDIS_STATIC_ARGS) {
outv = static_outv;
} else {
- outv = zmalloc(sizeof(robj*)*(argc*2+1));
+ outv = zmalloc(sizeof(robj*)*(argc*3+1));
}
-
- for (j = 0; j < argc; j++) {
- if (j != 0) outv[outc++] = shared.space;
- if ((cmd->flags & REDIS_CMD_BULK) && j == argc-1) {
- robj *lenobj;
- lenobj = createObject(REDIS_STRING,
- sdscatprintf(sdsempty(),"%lu\r\n",
- (unsigned long) stringObjectLen(argv[j])));
- lenobj->refcount = 0;
- outv[outc++] = lenobj;
- }
+ lenobj = createObject(REDIS_STRING,
+ sdscatprintf(sdsempty(), "*%d\r\n", argc));
+ lenobj->refcount = 0;
+ outv[outc++] = lenobj;
+ for (j = 0; j < argc; j++) {
+ lenobj = createObject(REDIS_STRING,
+ sdscatprintf(sdsempty(),"$%lu\r\n",
+ (unsigned long) stringObjectLen(argv[j])));
+ lenobj->refcount = 0;
+ outv[outc++] = lenobj;
outv[outc++] = argv[j];
+ outv[outc++] = shared.crlf;
}
- outv[outc++] = shared.crlf;
/* Increment all the refcounts at start and decrement at end in order to
* be sure to free objects if there is no slave in a replication state
addReply(c,shared.crlf);
}
+/* In the CONFIG command we need to add vanilla C string as bulk replies */
+static void addReplyBulkCString(redisClient *c, char *s) {
+ if (s == NULL) {
+ addReply(c,shared.nullbulk);
+ } else {
+ robj *o = createStringObject(s,strlen(s));
+ addReplyBulk(c,o);
+ decrRefCount(o);
+ }
+}
+
static void acceptHandler(aeEventLoop *el, int fd, void *privdata, int mask) {
int cport, cfd;
char cip[128];
if (dictSize((dict*)dstset->ptr) > 0) {
dictAdd(c->db->dict,dstkey,dstset);
incrRefCount(dstkey);
+ addReplyLong(c,dictSize((dict*)dstset->ptr));
} else {
decrRefCount(dstset);
+ addReply(c,shared.czero);
}
- }
-
- if (!dstkey) {
- lenobj->ptr = sdscatprintf(sdsempty(),"*%lu\r\n",cardinality);
- } else {
- addReplySds(c,sdscatprintf(sdsempty(),":%lu\r\n",
- dictSize((dict*)dstset->ptr)));
server.dirty++;
+ } else {
+ lenobj->ptr = sdscatprintf(sdsempty(),"*%lu\r\n",cardinality);
}
zfree(dv);
}
}
dictReleaseIterator(di);
- if (op == REDIS_OP_DIFF && cardinality == 0) break; /* result set is empty */
+ /* result set is empty? Exit asap. */
+ if (op == REDIS_OP_DIFF && cardinality == 0) break;
}
/* Output the content of the resulting set, if not in STORE mode */
addReplyBulk(c,ele);
}
dictReleaseIterator(di);
+ decrRefCount(dstset);
} else {
/* If we have a target key where to store the resulting set
* create this key with the result set inside */
if (dictSize((dict*)dstset->ptr) > 0) {
dictAdd(c->db->dict,dstkey,dstset);
incrRefCount(dstkey);
+ addReplyLong(c,dictSize((dict*)dstset->ptr));
} else {
decrRefCount(dstset);
+ addReply(c,shared.czero);
}
- }
-
- /* Cleanup */
- if (!dstkey) {
- decrRefCount(dstset);
- } else {
- addReplySds(c,sdscatprintf(sdsempty(),":%lu\r\n",
- dictSize((dict*)dstset->ptr)));
server.dirty++;
}
zfree(dv);
static void flushallCommand(redisClient *c) {
server.dirty += emptyDb();
addReply(c,shared.ok);
+ if (server.bgsavechildpid != -1) {
+ kill(server.bgsavechildpid,SIGKILL);
+ rdbRemoveTempFile(server.bgsavechildpid);
+ }
rdbSave(server.dbfilename);
server.dirty++;
}
"bgrewriteaof_in_progress:%d\r\n"
"total_connections_received:%lld\r\n"
"total_commands_processed:%lld\r\n"
+ "expired_keys:%lld\r\n"
"hash_max_zipmap_entries:%ld\r\n"
"hash_max_zipmap_value:%ld\r\n"
"vm_enabled:%d\r\n"
server.bgrewritechildpid != -1,
server.stat_numconnections,
server.stat_numcommands,
+ server.stat_expiredkeys,
server.hash_max_zipmap_entries,
server.hash_max_zipmap_value,
server.vm_enabled != 0,
/* Delete the key */
dictDelete(db->expires,key);
+ server.stat_expiredkeys++;
return dictDelete(db->dict,key) == DICT_OK;
}
/* Delete the key */
server.dirty++;
+ server.stat_expiredkeys++;
dictDelete(db->expires,key);
return dictDelete(db->dict,key) == DICT_OK;
}
}
}
+/* =========================== Remote Configuration ========================= */
+
+static void configSetCommand(redisClient *c) {
+ robj *o = getDecodedObject(c->argv[3]);
+ if (!strcasecmp(c->argv[2]->ptr,"dbfilename")) {
+ zfree(server.dbfilename);
+ server.dbfilename = zstrdup(o->ptr);
+ } else if (!strcasecmp(c->argv[2]->ptr,"requirepass")) {
+ zfree(server.requirepass);
+ server.requirepass = zstrdup(o->ptr);
+ } else if (!strcasecmp(c->argv[2]->ptr,"masterauth")) {
+ zfree(server.masterauth);
+ server.masterauth = zstrdup(o->ptr);
+ } else if (!strcasecmp(c->argv[2]->ptr,"maxmemory")) {
+ server.maxmemory = strtoll(o->ptr, NULL, 10);
+ } else {
+ addReplySds(c,sdscatprintf(sdsempty(),
+ "-ERR not supported CONFIG parameter %s\r\n",
+ (char*)c->argv[2]->ptr));
+ decrRefCount(o);
+ return;
+ }
+ decrRefCount(o);
+ addReply(c,shared.ok);
+}
+
+static void configGetCommand(redisClient *c) {
+ robj *o = getDecodedObject(c->argv[2]);
+ robj *lenobj = createObject(REDIS_STRING,NULL);
+ char *pattern = o->ptr;
+ int matches = 0;
+
+ addReply(c,lenobj);
+ decrRefCount(lenobj);
+
+ if (stringmatch(pattern,"dbfilename",0)) {
+ addReplyBulkCString(c,"dbfilename");
+ addReplyBulkCString(c,server.dbfilename);
+ matches++;
+ }
+ if (stringmatch(pattern,"requirepass",0)) {
+ addReplyBulkCString(c,"requirepass");
+ addReplyBulkCString(c,server.requirepass);
+ matches++;
+ }
+ if (stringmatch(pattern,"masterauth",0)) {
+ addReplyBulkCString(c,"masterauth");
+ addReplyBulkCString(c,server.masterauth);
+ matches++;
+ }
+ if (stringmatch(pattern,"maxmemory",0)) {
+ char buf[128];
+
+ snprintf(buf,128,"%llu\n",server.maxmemory);
+ addReplyBulkCString(c,"maxmemory");
+ addReplyBulkCString(c,buf);
+ matches++;
+ }
+ decrRefCount(o);
+ lenobj->ptr = sdscatprintf(sdsempty(),"*%d\r\n",matches*2);
+}
+
+static void configCommand(redisClient *c) {
+ if (!strcasecmp(c->argv[1]->ptr,"set")) {
+ if (c->argc != 4) goto badarity;
+ configSetCommand(c);
+ } else if (!strcasecmp(c->argv[1]->ptr,"get")) {
+ if (c->argc != 3) goto badarity;
+ configGetCommand(c);
+ } else if (!strcasecmp(c->argv[1]->ptr,"resetstat")) {
+ if (c->argc != 2) goto badarity;
+ server.stat_numcommands = 0;
+ server.stat_numconnections = 0;
+ server.stat_expiredkeys = 0;
+ server.stat_starttime = time(NULL);
+ addReply(c,shared.ok);
+ } else {
+ addReplySds(c,sdscatprintf(sdsempty(),
+ "-ERR CONFIG subcommand must be one of GET, SET, RESETSTAT\r\n"));
+ }
+ return;
+
+badarity:
+ addReplySds(c,sdscatprintf(sdsempty(),
+ "-ERR Wrong number of arguments for CONFIG %s\r\n",
+ (char*) c->argv[1]->ptr));
+}
+
/* ================================= Debugging ============================== */
static void debugCommand(redisClient *c) {
static void usage() {
fprintf(stderr,"Usage: ./redis-server [/path/to/redis.conf]\n");
+ fprintf(stderr," ./redis-server - (read config from stdin)\n");
exit(1);
}
projects / redis.git / blobdiff