X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/eeffcf380fcd3e3a0b2f650e24df8338a529642d..824ea0177f19218d925feefbfe836718c46351d5:/src/config.c

diff --git a/src/config.c b/src/config.c
index d4608559..9d28d678 100644
--- a/src/config.c
+++ b/src/config.c
@@ -23,39 +23,25 @@ void resetServerSaveParams() {
     server.saveparamslen = 0;
 }
 
-/* I agree, this is a very rudimental way to load a configuration...
-   will improve later if the config gets more complex */
-void loadServerConfig(char *filename) {
-    FILE *fp;
-    char buf[REDIS_CONFIGLINE_MAX+1], *err = NULL;
-    int linenum = 0;
-    sds line = NULL;
-
-    if (filename[0] == '-' && filename[1] == '\0')
-        fp = stdin;
-    else {
-        if ((fp = fopen(filename,"r")) == NULL) {
-            redisLog(REDIS_WARNING, "Fatal error, can't open config file '%s'", filename);
-            exit(1);
-        }
-    }
+void loadServerConfigFromString(char *config) {
+    char *err = NULL;
+    int linenum = 0, totlines, i;
+    sds *lines;
+
+    lines = sdssplitlen(config,strlen(config),"\n",1,&totlines);
 
-    while(fgets(buf,REDIS_CONFIGLINE_MAX+1,fp) != NULL) {
+    for (i = 0; i < totlines; i++) {
         sds *argv;
-        int argc, j;
+        int argc;
 
-        linenum++;
-        line = sdsnew(buf);
-        line = sdstrim(line," \t\r\n");
+        linenum = i+1;
+        lines[i] = sdstrim(lines[i]," \t\r\n");
 
         /* Skip comments and blank lines*/
-        if (line[0] == '#' || line[0] == '\0') {
-            sdsfree(line);
-            continue;
-        }
+        if (lines[i][0] == '#' || lines[i][0] == '\0') continue;
 
         /* Split into arguments */
-        argv = sdssplitargs(line,&argc);
+        argv = sdssplitargs(lines[i],&argc);
         sdstolower(argv[0]);
 
         /* Execute config directives */
@@ -73,13 +59,23 @@ void loadServerConfig(char *filename) {
             server.bindaddr = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"unixsocket") && argc == 2) {
             server.unixsocket = zstrdup(argv[1]);
-        } else if (!strcasecmp(argv[0],"save") && argc == 3) {
-            int seconds = atoi(argv[1]);
-            int changes = atoi(argv[2]);
-            if (seconds < 1 || changes < 0) {
-                err = "Invalid save parameters"; goto loaderr;
+        } else if (!strcasecmp(argv[0],"unixsocketperm") && argc == 2) {
+            errno = 0;
+            server.unixsocketperm = (mode_t)strtol(argv[1], NULL, 8);
+            if (errno || server.unixsocketperm > 0777) {
+                err = "Invalid socket file permissions"; goto loaderr;
+            }
+        } else if (!strcasecmp(argv[0],"save")) {
+            if (argc == 3) {
+                int seconds = atoi(argv[1]);
+                int changes = atoi(argv[2]);
+                if (seconds < 1 || changes < 0) {
+                    err = "Invalid save parameters"; goto loaderr;
+                }
+                appendServerSaveParams(seconds,changes);
+            } else if (argc == 2 && !strcasecmp(argv[1],"")) {
+                resetServerSaveParams();
             }
-            appendServerSaveParams(seconds,changes);
         } else if (!strcasecmp(argv[0],"dir") && argc == 2) {
             if (chdir(argv[1]) == -1) {
                 redisLog(REDIS_WARNING,"Can't chdir to '%s': %s",
@@ -156,7 +152,7 @@ void loadServerConfig(char *filename) {
                 err = "Invalid number of databases"; goto loaderr;
             }
         } else if (!strcasecmp(argv[0],"include") && argc == 2) {
-            loadServerConfig(argv[1]);
+            loadServerConfig(argv[1],NULL);
         } else if (!strcasecmp(argv[0],"maxclients") && argc == 2) {
             server.maxclients = atoi(argv[1]);
         } else if (!strcasecmp(argv[0],"maxmemory") && argc == 2) {
@@ -187,7 +183,19 @@ void loadServerConfig(char *filename) {
         } else if (!strcasecmp(argv[0],"slaveof") && argc == 3) {
             server.masterhost = sdsnew(argv[1]);
             server.masterport = atoi(argv[2]);
-            server.replstate = REDIS_REPL_CONNECT;
+            server.repl_state = REDIS_REPL_CONNECT;
+        } else if (!strcasecmp(argv[0],"repl-ping-slave-period") && argc == 2) {
+            server.repl_ping_slave_period = atoi(argv[1]);
+            if (server.repl_ping_slave_period <= 0) {
+                err = "repl-ping-slave-period must be 1 or greater";
+                goto loaderr;
+            }
+        } else if (!strcasecmp(argv[0],"repl-timeout") && argc == 2) {
+            server.repl_timeout = atoi(argv[1]);
+            if (server.repl_timeout <= 0) {
+                err = "repl-timeout must be 1 or greater";
+                goto loaderr;
+            }
         } else if (!strcasecmp(argv[0],"masterauth") && argc == 2) {
         	server.masterauth = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"slave-serve-stale-data") && argc == 2) {
@@ -197,7 +205,7 @@ void loadServerConfig(char *filename) {
         } else if (!strcasecmp(argv[0],"glueoutputbuf")) {
             redisLog(REDIS_WARNING, "Deprecated configuration directive: \"%s\"", argv[0]);
         } else if (!strcasecmp(argv[0],"rdbcompression") && argc == 2) {
-            if ((server.rdbcompression = yesnotoi(argv[1])) == -1) {
+            if ((server.rdb_compression = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
         } else if (!strcasecmp(argv[0],"activerehashing") && argc == 2) {
@@ -209,48 +217,51 @@ void loadServerConfig(char *filename) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
         } else if (!strcasecmp(argv[0],"appendonly") && argc == 2) {
-            if ((server.appendonly = yesnotoi(argv[1])) == -1) {
+            int yes;
+
+            if ((yes = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
+            server.aof_state = yes ? REDIS_AOF_ON : REDIS_AOF_OFF;
         } else if (!strcasecmp(argv[0],"appendfilename") && argc == 2) {
-            zfree(server.appendfilename);
-            server.appendfilename = zstrdup(argv[1]);
+            zfree(server.aof_filename);
+            server.aof_filename = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"no-appendfsync-on-rewrite")
                    && argc == 2) {
-            if ((server.no_appendfsync_on_rewrite= yesnotoi(argv[1])) == -1) {
+            if ((server.aof_no_fsync_on_rewrite= yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
         } else if (!strcasecmp(argv[0],"appendfsync") && argc == 2) {
             if (!strcasecmp(argv[1],"no")) {
-                server.appendfsync = APPENDFSYNC_NO;
+                server.aof_fsync = AOF_FSYNC_NO;
             } else if (!strcasecmp(argv[1],"always")) {
-                server.appendfsync = APPENDFSYNC_ALWAYS;
+                server.aof_fsync = AOF_FSYNC_ALWAYS;
             } else if (!strcasecmp(argv[1],"everysec")) {
-                server.appendfsync = APPENDFSYNC_EVERYSEC;
+                server.aof_fsync = AOF_FSYNC_EVERYSEC;
             } else {
                 err = "argument must be 'no', 'always' or 'everysec'";
                 goto loaderr;
             }
+        } else if (!strcasecmp(argv[0],"auto-aof-rewrite-percentage") &&
+                   argc == 2)
+        {
+            server.aof_rewrite_perc = atoi(argv[1]);
+            if (server.aof_rewrite_perc < 0) {
+                err = "Invalid negative percentage for AOF auto rewrite";
+                goto loaderr;
+            }
+        } else if (!strcasecmp(argv[0],"auto-aof-rewrite-min-size") &&
+                   argc == 2)
+        {
+            server.aof_rewrite_min_size = memtoll(argv[1],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],"diskstore-enabled") && argc == 2) {
-            if ((server.ds_enabled = yesnotoi(argv[1])) == -1) {
-                err = "argument must be 'yes' or 'no'"; goto loaderr;
-            }
-        } else if (!strcasecmp(argv[0],"diskstore-path") && argc == 2) {
-            sdsfree(server.ds_path);
-            server.ds_path = sdsnew(argv[1]);
-        } else if (!strcasecmp(argv[0],"cache-max-memory") && argc == 2) {
-            server.cache_max_memory = memtoll(argv[1],NULL);
-        } else if (!strcasecmp(argv[0],"cache-flush-delay") && argc == 2) {
-            server.cache_flush_delay = atoi(argv[1]);
-            if (server.cache_flush_delay < 0) server.cache_flush_delay = 0;
+            zfree(server.rdb_filename);
+            server.rdb_filename = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"hash-max-zipmap-entries") && argc == 2) {
             server.hash_max_zipmap_entries = memtoll(argv[1], NULL);
         } else if (!strcasecmp(argv[0],"hash-max-zipmap-value") && argc == 2) {
@@ -298,25 +309,86 @@ void loadServerConfig(char *filename) {
             server.cluster.configfile = zstrdup(argv[1]);
         } else if (!strcasecmp(argv[0],"lua-time-limit") && argc == 2) {
             server.lua_time_limit = strtoll(argv[1],NULL,10);
+        } else if (!strcasecmp(argv[0],"slowlog-log-slower-than") &&
+                   argc == 2)
+        {
+            server.slowlog_log_slower_than = strtoll(argv[1],NULL,10);
+        } else if (!strcasecmp(argv[0],"slowlog-max-len") && argc == 2) {
+            server.slowlog_max_len = strtoll(argv[1],NULL,10);
+        } else if (!strcasecmp(argv[0],"client-output-buffer-limit") &&
+                   argc == 5)
+        {
+            int class = getClientLimitClassByName(argv[1]);
+            unsigned long long hard, soft;
+            int soft_seconds;
+
+            if (class == -1) {
+                err = "Unrecognized client limit class";
+                goto loaderr;
+            }
+            hard = memtoll(argv[2],NULL);
+            soft = memtoll(argv[3],NULL);
+            soft_seconds = atoi(argv[4]);
+            if (soft_seconds < 0) {
+                err = "Negative number of seconds in soft limt is invalid";
+                goto loaderr;
+            }
+            server.client_obuf_limits[class].hard_limit_bytes = hard;
+            server.client_obuf_limits[class].soft_limit_bytes = soft;
+            server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;
         } else {
             err = "Bad directive or wrong number of arguments"; goto loaderr;
         }
-        for (j = 0; j < argc; j++)
-            sdsfree(argv[j]);
-        zfree(argv);
-        sdsfree(line);
+        sdsfreesplitres(argv,argc);
     }
-    if (fp != stdin) fclose(fp);
+    sdsfreesplitres(lines,totlines);
     return;
 
 loaderr:
     fprintf(stderr, "\n*** FATAL CONFIG FILE ERROR ***\n");
     fprintf(stderr, "Reading the configuration file, at line %d\n", linenum);
-    fprintf(stderr, ">>> '%s'\n", line);
+    fprintf(stderr, ">>> '%s'\n", lines[i]);
     fprintf(stderr, "%s\n", err);
     exit(1);
 }
 
+/* Load the server configuration from the specified filename.
+ * The function appends the additional configuration directives stored
+ * in the 'options' string to the config file before loading.
+ *
+ * Both filename and options can be NULL, in such a case are considered
+ * emtpy. This way loadServerConfig can be used to just load a file or
+ * just load a string. */
+void loadServerConfig(char *filename, char *options) {
+    sds config = sdsempty();
+    char buf[REDIS_CONFIGLINE_MAX+1];
+
+    /* Load the file content */
+    if (filename) {
+        FILE *fp;
+
+        if (filename[0] == '-' && filename[1] == '\0') {
+            fp = stdin;
+        } else {
+            if ((fp = fopen(filename,"r")) == NULL) {
+                redisLog(REDIS_WARNING,
+                    "Fatal error, can't open config file '%s'", filename);
+                exit(1);
+            }
+        }
+        while(fgets(buf,REDIS_CONFIGLINE_MAX+1,fp) != NULL)
+            config = sdscat(config,buf);
+        if (fp != stdin) fclose(fp);
+    }
+    /* Append the additional options */
+    if (options) {
+        config = sdscat(config,"\n");
+        config = sdscat(config,options);
+    }
+    loadServerConfigFromString(config);
+    sdsfree(config);
+}
+
 /*-----------------------------------------------------------------------------
  * CONFIG command for remote configuration
  *----------------------------------------------------------------------------*/
@@ -324,16 +396,16 @@ loaderr:
 void configSetCommand(redisClient *c) {
     robj *o;
     long long ll;
-    redisAssert(c->argv[2]->encoding == REDIS_ENCODING_RAW);
-    redisAssert(c->argv[3]->encoding == REDIS_ENCODING_RAW);
+    redisAssertWithInfo(c,c->argv[2],c->argv[2]->encoding == REDIS_ENCODING_RAW);
+    redisAssertWithInfo(c,c->argv[2],c->argv[3]->encoding == REDIS_ENCODING_RAW);
     o = c->argv[3];
 
     if (!strcasecmp(c->argv[2]->ptr,"dbfilename")) {
-        zfree(server.dbfilename);
-        server.dbfilename = zstrdup(o->ptr);
+        zfree(server.rdb_filename);
+        server.rdb_filename = zstrdup(o->ptr);
     } else if (!strcasecmp(c->argv[2]->ptr,"requirepass")) {
         zfree(server.requirepass);
-        server.requirepass = zstrdup(o->ptr);
+        server.requirepass = ((char*)o->ptr)[0] ? zstrdup(o->ptr) : NULL;
     } else if (!strcasecmp(c->argv[2]->ptr,"masterauth")) {
         zfree(server.masterauth);
         server.masterauth = zstrdup(o->ptr);
@@ -368,11 +440,11 @@ void configSetCommand(redisClient *c) {
         server.maxidletime = ll;
     } else if (!strcasecmp(c->argv[2]->ptr,"appendfsync")) {
         if (!strcasecmp(o->ptr,"no")) {
-            server.appendfsync = APPENDFSYNC_NO;
+            server.aof_fsync = AOF_FSYNC_NO;
         } else if (!strcasecmp(o->ptr,"everysec")) {
-            server.appendfsync = APPENDFSYNC_EVERYSEC;
+            server.aof_fsync = AOF_FSYNC_EVERYSEC;
         } else if (!strcasecmp(o->ptr,"always")) {
-            server.appendfsync = APPENDFSYNC_ALWAYS;
+            server.aof_fsync = AOF_FSYNC_ALWAYS;
         } else {
             goto badfmt;
         }
@@ -380,23 +452,26 @@ void configSetCommand(redisClient *c) {
         int yn = yesnotoi(o->ptr);
 
         if (yn == -1) goto badfmt;
-        server.no_appendfsync_on_rewrite = yn;
+        server.aof_no_fsync_on_rewrite = yn;
     } else if (!strcasecmp(c->argv[2]->ptr,"appendonly")) {
-        int old = server.appendonly;
-        int new = yesnotoi(o->ptr);
-
-        if (new == -1) goto badfmt;
-        if (old != new) {
-            if (new == 0) {
-                stopAppendOnly();
-            } else {
-                if (startAppendOnly() == REDIS_ERR) {
-                    addReplyError(c,
-                        "Unable to turn on AOF. Check server logs.");
-                    return;
-                }
+        int enable = yesnotoi(o->ptr);
+
+        if (enable == -1) goto badfmt;
+        if (enable == 0 && server.aof_state != REDIS_AOF_OFF) {
+            stopAppendOnly();
+        } else if (enable && server.aof_state == REDIS_AOF_OFF) {
+            if (startAppendOnly() == REDIS_ERR) {
+                addReplyError(c,
+                    "Unable to turn on AOF. Check server logs.");
+                return;
             }
         }
+    } else if (!strcasecmp(c->argv[2]->ptr,"auto-aof-rewrite-percentage")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
+        server.aof_rewrite_perc = ll;
+    } else if (!strcasecmp(c->argv[2]->ptr,"auto-aof-rewrite-min-size")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
+        server.aof_rewrite_min_size = ll;
     } else if (!strcasecmp(c->argv[2]->ptr,"save")) {
         int vlen, j;
         sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen);
@@ -465,6 +540,71 @@ void configSetCommand(redisClient *c) {
     } else if (!strcasecmp(c->argv[2]->ptr,"lua-time-limit")) {
         if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
         server.lua_time_limit = ll;
+    } else if (!strcasecmp(c->argv[2]->ptr,"slowlog-log-slower-than")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR) goto badfmt;
+        server.slowlog_log_slower_than = ll;
+    } else if (!strcasecmp(c->argv[2]->ptr,"slowlog-max-len")) {
+        if (getLongLongFromObject(o,&ll) == REDIS_ERR || ll < 0) goto badfmt;
+        server.slowlog_max_len = (unsigned)ll;
+    } else if (!strcasecmp(c->argv[2]->ptr,"loglevel")) {
+        if (!strcasecmp(o->ptr,"warning")) {
+            server.verbosity = REDIS_WARNING;
+        } else if (!strcasecmp(o->ptr,"notice")) {
+            server.verbosity = REDIS_NOTICE;
+        } else if (!strcasecmp(o->ptr,"verbose")) {
+            server.verbosity = REDIS_VERBOSE;
+        } else if (!strcasecmp(o->ptr,"debug")) {
+            server.verbosity = REDIS_DEBUG;
+        } else {
+            goto badfmt;
+        }
+    } else if (!strcasecmp(c->argv[2]->ptr,"client-output-buffer-limit")) {
+        int vlen, j;
+        sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen);
+
+        /* We need a multiple of 4: <class> <hard> <soft> <soft_seconds> */
+        if (vlen % 4) {
+            sdsfreesplitres(v,vlen);
+            goto badfmt;
+        }
+
+        /* Sanity check of single arguments, so that we either refuse the
+         * whole configuration string or accept it all, even if a single
+         * error in a single client class is present. */
+        for (j = 0; j < vlen; j++) {
+            char *eptr;
+            long val;
+
+            if ((j % 4) == 0) {
+                if (getClientLimitClassByName(v[j]) == -1) {
+                    sdsfreesplitres(v,vlen);
+                    goto badfmt;
+                }
+            } else {
+                val = strtoll(v[j], &eptr, 10);
+                if (eptr[0] != '\0' || val < 0) {
+                    sdsfreesplitres(v,vlen);
+                    goto badfmt;
+                }
+            }
+        }
+        /* Finally set the new config */
+        for (j = 0; j < vlen; j += 4) {
+            int class;
+            unsigned long long hard, soft;
+            int soft_seconds;
+
+            class = getClientLimitClassByName(v[j]);
+            hard = strtoll(v[j+1],NULL,10);
+            soft = strtoll(v[j+2],NULL,10);
+            soft_seconds = strtoll(v[j+3],NULL,10);
+
+            server.client_obuf_limits[class].hard_limit_bytes = hard;
+            server.client_obuf_limits[class].soft_limit_bytes = soft;
+            server.client_obuf_limits[class].soft_limit_seconds = soft_seconds;
+        }
+        sdsfreesplitres(v,vlen);
+
     } else {
         addReplyErrorFormat(c,"Unsupported CONFIG parameter: %s",
             (char*)c->argv[2]->ptr);
@@ -485,22 +625,21 @@ void configGetCommand(redisClient *c) {
     char *pattern = o->ptr;
     char buf[128];
     int matches = 0;
-    redisAssert(o->encoding == REDIS_ENCODING_RAW);
+    redisAssertWithInfo(c,o,o->encoding == REDIS_ENCODING_RAW);
 
     if (stringmatch(pattern,"dir",0)) {
         char buf[1024];
 
-        addReplyBulkCString(c,"dir");
-        if (getcwd(buf,sizeof(buf)) == NULL) {
+        if (getcwd(buf,sizeof(buf)) == NULL)
             buf[0] = '\0';
-        } else {
-            addReplyBulkCString(c,buf);
-        }
+
+        addReplyBulkCString(c,"dir");
+        addReplyBulkCString(c,buf);
         matches++;
     }
     if (stringmatch(pattern,"dbfilename",0)) {
         addReplyBulkCString(c,"dbfilename");
-        addReplyBulkCString(c,server.dbfilename);
+        addReplyBulkCString(c,server.rdb_filename);
         matches++;
     }
     if (stringmatch(pattern,"requirepass",0)) {
@@ -549,21 +688,21 @@ void configGetCommand(redisClient *c) {
     }
     if (stringmatch(pattern,"appendonly",0)) {
         addReplyBulkCString(c,"appendonly");
-        addReplyBulkCString(c,server.appendonly ? "yes" : "no");
+        addReplyBulkCString(c,server.aof_state == REDIS_AOF_OFF ? "no" : "yes");
         matches++;
     }
     if (stringmatch(pattern,"no-appendfsync-on-rewrite",0)) {
         addReplyBulkCString(c,"no-appendfsync-on-rewrite");
-        addReplyBulkCString(c,server.no_appendfsync_on_rewrite ? "yes" : "no");
+        addReplyBulkCString(c,server.aof_no_fsync_on_rewrite ? "yes" : "no");
         matches++;
     }
     if (stringmatch(pattern,"appendfsync",0)) {
         char *policy;
 
-        switch(server.appendfsync) {
-        case APPENDFSYNC_NO: policy = "no"; break;
-        case APPENDFSYNC_EVERYSEC: policy = "everysec"; break;
-        case APPENDFSYNC_ALWAYS: policy = "always"; break;
+        switch(server.aof_fsync) {
+        case AOF_FSYNC_NO: policy = "no"; break;
+        case AOF_FSYNC_EVERYSEC: policy = "everysec"; break;
+        case AOF_FSYNC_ALWAYS: policy = "always"; break;
         default: policy = "unknown"; break; /* too harmless to panic */
         }
         addReplyBulkCString(c,"appendfsync");
@@ -586,6 +725,16 @@ void configGetCommand(redisClient *c) {
         sdsfree(buf);
         matches++;
     }
+    if (stringmatch(pattern,"auto-aof-rewrite-percentage",0)) {
+        addReplyBulkCString(c,"auto-aof-rewrite-percentage");
+        addReplyBulkLongLong(c,server.aof_rewrite_perc);
+        matches++;
+    }
+    if (stringmatch(pattern,"auto-aof-rewrite-min-size",0)) {
+        addReplyBulkCString(c,"auto-aof-rewrite-min-size");
+        addReplyBulkLongLong(c,server.aof_rewrite_min_size);
+        matches++;
+    }
     if (stringmatch(pattern,"slave-serve-stale-data",0)) {
         addReplyBulkCString(c,"slave-serve-stale-data");
         addReplyBulkCString(c,server.repl_serve_stale_data ? "yes" : "no");
@@ -631,6 +780,48 @@ void configGetCommand(redisClient *c) {
         addReplyBulkLongLong(c,server.lua_time_limit);
         matches++;
     }
+    if (stringmatch(pattern,"slowlog-log-slower-than",0)) {
+        addReplyBulkCString(c,"slowlog-log-slower-than");
+        addReplyBulkLongLong(c,server.slowlog_log_slower_than);
+        matches++;
+    }
+    if (stringmatch(pattern,"slowlog-max-len",0)) {
+        addReplyBulkCString(c,"slowlog-max-len");
+        addReplyBulkLongLong(c,server.slowlog_max_len);
+        matches++;
+    }
+    if (stringmatch(pattern,"loglevel",0)) {
+        char *s;
+
+        switch(server.verbosity) {
+        case REDIS_WARNING: s = "warning"; break;
+        case REDIS_VERBOSE: s = "verbose"; break;
+        case REDIS_NOTICE: s = "notice"; break;
+        case REDIS_DEBUG: s = "debug"; break;
+        default: s = "unknown"; break; /* too harmless to panic */
+        }
+        addReplyBulkCString(c,"loglevel");
+        addReplyBulkCString(c,s);
+        matches++;
+    }
+    if (stringmatch(pattern,"client-output-buffer-limit",0)) {
+        sds buf = sdsempty();
+        int j;
+
+        for (j = 0; j < REDIS_CLIENT_LIMIT_NUM_CLASSES; j++) {
+            buf = sdscatprintf(buf,"%s %llu %llu %ld",
+                    getClientLimitClassName(j),
+                    server.client_obuf_limits[j].hard_limit_bytes,
+                    server.client_obuf_limits[j].soft_limit_bytes,
+                    (long) server.client_obuf_limits[j].soft_limit_seconds);
+            if (j != REDIS_CLIENT_LIMIT_NUM_CLASSES-1)
+                buf = sdscatlen(buf," ",1);
+        }
+        addReplyBulkCString(c,"client-output-buffer-limit");
+        addReplyBulkCString(c,buf);
+        sdsfree(buf);
+        matches++;
+    }
     setDeferredMultiBulkLength(c,replylen,matches*2);
 }