Code

Automatically prefix all log messages with the plugin name (if available).
[sysdb.git] / src / core / plugin.c
index 76fc2092d022ff8588a2b5f11739e8653fa5c1c4..b3f00bd655504075b97c5f158b8c45a8c0d20d05 100644 (file)
@@ -250,9 +250,8 @@ plugin_unregister_by_name(const char *plugin_name)
 
                        assert(cb->cb_ctx);
 
-                       sdb_log(SDB_LOG_INFO, "core: Unregistering "
-                                       "%s callback '%s' (module %s)", type, cb->super.name,
-                                       cb->cb_ctx->info.plugin_name);
+                       sdb_log(SDB_LOG_INFO, "Unregistering %s callback '%s' (module %s)",
+                                       type, cb->super.name, cb->cb_ctx->info.plugin_name);
                        sdb_object_deref(SDB_OBJ(cb));
                }
        }
@@ -368,13 +367,12 @@ ctx_destroy(sdb_object_t *obj)
        if (ctx->handle) {
                const char *err;
 
-               sdb_log(SDB_LOG_INFO, "core: Unloading module %s",
-                               ctx->info.plugin_name);
+               sdb_log(SDB_LOG_INFO, "Unloading module %s", ctx->info.plugin_name);
 
                lt_dlerror();
                lt_dlclose(ctx->handle);
                if ((err = lt_dlerror()))
-                       sdb_log(SDB_LOG_WARNING, "core: Failed to unload module %s: %s",
+                       sdb_log(SDB_LOG_WARNING, "Failed to unload module %s: %s",
                                        ctx->info.plugin_name, err);
        }
 
@@ -442,9 +440,9 @@ plugin_init_ok(sdb_object_t *obj, va_list ap)
        assert(list); assert(type);
 
        if (sdb_llist_search_by_name(*list, obj->name)) {
-               sdb_log(SDB_LOG_WARNING, "core: %s callback '%s' "
-                               "has already been registered. Ignoring newly "
-                               "registered version.", type, obj->name);
+               sdb_log(SDB_LOG_WARNING, "%s callback '%s' has already been "
+                               "registered. Ignoring newly registered version.",
+                               type, obj->name);
                return 0;
        }
        return 1;
@@ -510,9 +508,8 @@ plugin_writer_init(sdb_object_t *obj, va_list ap)
 
        if ((! impl->store_host) || (! impl->store_service)
                        || (! impl->store_metric) || (! impl->store_attribute)) {
-               sdb_log(SDB_LOG_ERR, "core: store writer callback '%s' "
-                               "does not fully implement the writer interface.",
-                               obj->name);
+               sdb_log(SDB_LOG_ERR, "store writer callback '%s' does not fully "
+                               "implement the writer interface.", obj->name);
                return -1;
        }
 
@@ -556,9 +553,8 @@ plugin_reader_init(sdb_object_t *obj, va_list ap)
        assert(impl);
 
        if ((! impl->prepare_query) || (! impl->execute_query)) {
-               sdb_log(SDB_LOG_ERR, "core: store reader callback '%s' "
-                               "does not fully implement the reader interface.",
-                               obj->name);
+               sdb_log(SDB_LOG_ERR, "store reader callback '%s' does not fully "
+                               "implement the reader interface.", obj->name);
                return -1;
        }
 
@@ -602,9 +598,8 @@ plugin_ts_fetcher_init(sdb_object_t *obj, va_list ap)
        assert(impl);
 
        if ((! impl->describe) || (! impl->fetch)) {
-               sdb_log(SDB_LOG_ERR, "core: timeseries fetcher callback '%s' "
-                               "does not fully implement the interface.",
-                               obj->name);
+               sdb_log(SDB_LOG_ERR, "timeseries fetcher callback '%s' does not fully "
+                               "implement the interface.", obj->name);
                return -1;
        }
 
@@ -642,15 +637,14 @@ module_init(const char *name, lt_dlhandle lh, sdb_plugin_info_t *info)
 
        mod_init = (int (*)(sdb_plugin_info_t *))lt_dlsym(lh, "sdb_module_init");
        if (! mod_init) {
-               sdb_log(SDB_LOG_ERR, "core: Failed to load plugin '%s': "
+               sdb_log(SDB_LOG_ERR, "Failed to load plugin '%s': "
                                "could not find symbol 'sdb_module_init'", name);
                return -1;
        }
 
        status = mod_init(info);
        if (status) {
-               sdb_log(SDB_LOG_ERR, "core: Failed to initialize "
-                               "module '%s'", name);
+               sdb_log(SDB_LOG_ERR, "Failed to initialize module '%s'", name);
                plugin_unregister_by_name(name);
                return -1;
        }
@@ -692,7 +686,7 @@ module_load(const char *basedir, const char *name,
 
        if (access(filename, R_OK)) {
                char errbuf[1024];
-               sdb_log(SDB_LOG_ERR, "core: Failed to load plugin '%s' (%s): %s",
+               sdb_log(SDB_LOG_ERR, "Failed to load plugin '%s' (%s): %s",
                                name, filename, sdb_strerror(errno, errbuf, sizeof(errbuf)));
                return -1;
        }
@@ -702,18 +696,18 @@ module_load(const char *basedir, const char *name,
 
        lh = lt_dlopen(filename);
        if (! lh) {
-               sdb_log(SDB_LOG_ERR, "core: Failed to load plugin '%s': %s"
+               sdb_log(SDB_LOG_ERR, "Failed to load plugin '%s': %s"
                                "The most common cause for this problem are missing "
                                "dependencies.\n", name, lt_dlerror());
                return -1;
        }
 
        if (ctx_get())
-               sdb_log(SDB_LOG_WARNING, "core: Discarding old plugin context");
+               sdb_log(SDB_LOG_WARNING, "Discarding old plugin context");
 
        ctx = ctx_create(name);
        if (! ctx) {
-               sdb_log(SDB_LOG_ERR, "core: Failed to initialize plugin context");
+               sdb_log(SDB_LOG_ERR, "Failed to initialize plugin context");
                return -1;
        }
 
@@ -733,20 +727,19 @@ module_load(const char *basedir, const char *name,
        /* compare minor version */
        if ((ctx->info.version < 0)
                        || ((int)(ctx->info.version / 100) != (int)(SDB_VERSION / 100)))
-               sdb_log(SDB_LOG_WARNING, "core: WARNING: version of "
-                               "plugin '%s' (%i.%i.%i) does not match our version "
-                               "(%i.%i.%i); this might cause problems",
-                               name, SDB_VERSION_DECODE(ctx->info.version),
+               sdb_log(SDB_LOG_WARNING, "WARNING: plugin version (%i.%i.%i) "
+                               "does not match core version (%i.%i.%i); "
+                               "this might cause problems",
+                               SDB_VERSION_DECODE(ctx->info.version),
                                SDB_VERSION_DECODE(SDB_VERSION));
 
        sdb_llist_append(all_plugins, SDB_OBJ(ctx));
 
-       sdb_log(SDB_LOG_INFO, "core: Successfully loaded "
-                       "plugin %s v%i (%s)", ctx->info.plugin_name,
-                       ctx->info.plugin_version,
+       /* log messages will be prefixed by the plugin name */
+       sdb_log(SDB_LOG_INFO, "Successfully loaded "
+                       "version %i (%s)", ctx->info.plugin_version,
                        INFO_GET(&ctx->info, description));
-       sdb_log(SDB_LOG_INFO, "core: Plugin %s: %s, License: %s",
-                       ctx->info.plugin_name,
+       sdb_log(SDB_LOG_INFO, "%s, License: %s",
                        INFO_GET(&ctx->info, copyright),
                        INFO_GET(&ctx->info, license));
 
@@ -798,8 +791,7 @@ plugin_add_impl(sdb_llist_t **list, sdb_type_t T, const char *type,
        /* pass control to the list */
        sdb_object_deref(obj);
 
-       sdb_log(SDB_LOG_INFO, "core: Registered %s callback '%s'.",
-                       type, name);
+       sdb_log(SDB_LOG_INFO, "Registered %s callback '%s'.", type, name);
        return 0;
 } /* plugin_add_impl */
 
@@ -892,7 +884,7 @@ get_interval(int obj_type, const char *hostname,
 
        if (lu.last_update >= last_update) {
                if (lu.last_update > last_update)
-                       sdb_log(SDB_LOG_DEBUG, "memstore: Cannot update %s '%s' - "
+                       sdb_log(SDB_LOG_DEBUG, "Cannot update %s '%s' - "
                                        "value too old (%"PRIsdbTIME" < %"PRIsdbTIME")",
                                        SDB_STORE_TYPE_TO_NAME(obj_type), name,
                                        lu.last_update, last_update);
@@ -940,7 +932,7 @@ sdb_plugin_load(const char *basedir, const char *name,
 
        if (! all_plugins) {
                if (! (all_plugins = sdb_llist_create())) {
-                       sdb_log(SDB_LOG_ERR, "core: Failed to load plugin '%s': "
+                       sdb_log(SDB_LOG_ERR, "Failed to load plugin '%s': "
                                        "internal error while creating linked list", name);
                        return -1;
                }
@@ -958,7 +950,8 @@ sdb_plugin_load(const char *basedir, const char *name,
                        if (status)
                                return status;
 
-                       sdb_log(SDB_LOG_INFO, "core: Successfully reloaded plugin "
+                       ctx_set(old_ctx);
+                       sdb_log(SDB_LOG_INFO, "Successfully reloaded plugin "
                                        "'%s' (%s)", ctx->info.plugin_name,
                                        INFO_GET(&ctx->info, description));
                }
@@ -1034,7 +1027,7 @@ sdb_plugin_register_config(sdb_plugin_config_cb callback)
        ctx_t *ctx = ctx_get();
 
        if (! ctx) {
-               sdb_log(SDB_LOG_ERR, "core: Invalid attempt to register a "
+               sdb_log(SDB_LOG_ERR, "Invalid attempt to register a "
                                "config callback from outside a plugin");
                return -1;
        }
@@ -1110,9 +1103,8 @@ sdb_plugin_register_collector(const char *name, sdb_plugin_collector_cb callback
                ctx_t *ctx = ctx_get();
 
                if (! ctx) {
-                       sdb_log(SDB_LOG_ERR, "core: Cannot determine interval "
-                                       "for collector %s; none specified and no plugin "
-                                       "context found", cb_name);
+                       sdb_log(SDB_LOG_ERR, "Cannot determine interval for collector %s; "
+                                       "none specified and no plugin context found", cb_name);
                        return -1;
                }
 
@@ -1121,8 +1113,8 @@ sdb_plugin_register_collector(const char *name, sdb_plugin_collector_cb callback
 
        if (! (CCB(obj)->ccb_next_update = sdb_gettime())) {
                char errbuf[1024];
-               sdb_log(SDB_LOG_ERR, "core: Failed to determine current "
-                               "time: %s", sdb_strerror(errno, errbuf, sizeof(errbuf)));
+               sdb_log(SDB_LOG_ERR, "Failed to determine current time: %s",
+                               sdb_strerror(errno, errbuf, sizeof(errbuf)));
                sdb_object_deref(obj);
                return -1;
        }
@@ -1136,7 +1128,7 @@ sdb_plugin_register_collector(const char *name, sdb_plugin_collector_cb callback
        /* pass control to the list */
        sdb_object_deref(obj);
 
-       sdb_log(SDB_LOG_INFO, "core: Registered collector callback '%s' "
+       sdb_log(SDB_LOG_INFO, "Registered collector callback '%s' "
                        "(interval = %.3fs).", cb_name,
                        SDB_TIME_TO_DOUBLE(CCB(obj)->ccb_interval));
        return 0;
@@ -1185,7 +1177,7 @@ sdb_plugin_unregister_all(void)
                        continue;
 
                sdb_llist_clear(list);
-               sdb_log(SDB_LOG_INFO, "core: Unregistered %zu %s callback%s",
+               sdb_log(SDB_LOG_INFO, "Unregistered %zu %s callback%s",
                                len, type, len == 1 ? "" : "s");
        }
 } /* sdb_plugin_unregister_all */
@@ -1197,7 +1189,7 @@ sdb_plugin_get_ctx(void)
 
        c = ctx_get();
        if (! c) {
-               sdb_log(SDB_LOG_ERR, "core: Invalid read access to plugin "
+               sdb_log(SDB_LOG_ERR, "Invalid read access to plugin "
                                "context outside a plugin");
                return plugin_default_ctx;
        }
@@ -1211,7 +1203,7 @@ sdb_plugin_set_ctx(sdb_plugin_ctx_t ctx, sdb_plugin_ctx_t *old)
 
        c = ctx_get();
        if (! c) {
-               sdb_log(SDB_LOG_ERR, "core: Invalid write access to plugin "
+               sdb_log(SDB_LOG_ERR, "Invalid write access to plugin "
                                "context outside a plugin");
                return -1;
        }
@@ -1249,11 +1241,11 @@ sdb_plugin_configure(const char *name, oconfig_item_t *ci)
        if (! plugin) {
                ctx_t *ctx = CTX(sdb_llist_search_by_name(all_plugins, name));
                if (! ctx)
-                       sdb_log(SDB_LOG_ERR, "core: Cannot configure unknown "
-                                       "plugin '%s'. Missing 'LoadPlugin \"%s\"'?",
+                       sdb_log(SDB_LOG_ERR, "Cannot configure unknown plugin '%s'. "
+                                       "Missing 'LoadPlugin \"%s\"'?",
                                        name, name);
                else
-                       sdb_log(SDB_LOG_ERR, "core: Plugin '%s' did not register "
+                       sdb_log(SDB_LOG_ERR, "Plugin '%s' did not register "
                                        "a config callback.", name);
                errno = ENOENT;
                return -1;
@@ -1316,7 +1308,7 @@ sdb_plugin_reconfigure_finish(void)
                if (ctx->use_cnt)
                        continue;
 
-               sdb_log(SDB_LOG_INFO, "core: Module %s no longer in use",
+               sdb_log(SDB_LOG_INFO, "Module %s no longer in use",
                                ctx->info.plugin_name);
                sdb_llist_iter_remove_current(iter);
                plugin_unregister_by_name(ctx->info.plugin_name);
@@ -1346,8 +1338,8 @@ sdb_plugin_init_all(void)
 
                old_ctx = ctx_set(cb->cb_ctx);
                if (callback(cb->cb_user_data)) {
-                       sdb_log(SDB_LOG_ERR, "core: Failed to initialize plugin "
-                                       "'%s'. Unregistering all callbacks.", obj->name);
+                       sdb_log(SDB_LOG_ERR, "Failed to initialize plugin '%s'. "
+                                       "Unregistering all callbacks.", obj->name);
                        ctx_set(old_ctx);
                        plugin_unregister_by_name(cb->cb_ctx->info.plugin_name);
                        ++ret;
@@ -1379,7 +1371,7 @@ sdb_plugin_shutdown_all(void)
 
                old_ctx = ctx_set(cb->cb_ctx);
                if (callback(cb->cb_user_data)) {
-                       sdb_log(SDB_LOG_ERR, "core: Failed to shutdown plugin '%s'.",
+                       sdb_log(SDB_LOG_ERR, "Failed to shutdown plugin '%s'.",
                                        obj->name);
                        ++ret;
                }
@@ -1393,7 +1385,7 @@ int
 sdb_plugin_collector_loop(sdb_plugin_loop_t *loop)
 {
        if (! collector_list) {
-               sdb_log(SDB_LOG_WARNING, "core: No collectors registered. "
+               sdb_log(SDB_LOG_WARNING, "No collectors registered. "
                                "Quiting main loop.");
                return -1;
        }
@@ -1415,7 +1407,7 @@ sdb_plugin_collector_loop(sdb_plugin_loop_t *loop)
 
                if (! (now = sdb_gettime())) {
                        char errbuf[1024];
-                       sdb_log(SDB_LOG_ERR, "core: Failed to determine current "
+                       sdb_log(SDB_LOG_ERR, "Failed to determine current "
                                        "time in collector main loop: %s",
                                        sdb_strerror(errno, errbuf, sizeof(errbuf)));
                        now = CCB(obj)->ccb_next_update;
@@ -1428,7 +1420,7 @@ sdb_plugin_collector_loop(sdb_plugin_loop_t *loop)
                        while (loop->do_loop && sdb_sleep(interval, &interval)) {
                                if (errno != EINTR) {
                                        char errbuf[1024];
-                                       sdb_log(SDB_LOG_ERR, "core: Failed to sleep "
+                                       sdb_log(SDB_LOG_ERR, "Failed to sleep "
                                                        "in collector main loop: %s",
                                                        sdb_strerror(errno, errbuf, sizeof(errbuf)));
                                        sdb_llist_insert_sorted(collector_list, obj,
@@ -1458,7 +1450,7 @@ sdb_plugin_collector_loop(sdb_plugin_loop_t *loop)
                if (! interval)
                        interval = loop->default_interval;
                if (! interval) {
-                       sdb_log(SDB_LOG_WARNING, "core: No interval configured "
+                       sdb_log(SDB_LOG_WARNING, "No interval configured "
                                        "for plugin '%s'; skipping any further "
                                        "iterations.", obj->name);
                        sdb_object_deref(obj);
@@ -1469,14 +1461,14 @@ sdb_plugin_collector_loop(sdb_plugin_loop_t *loop)
 
                if (! (now = sdb_gettime())) {
                        char errbuf[1024];
-                       sdb_log(SDB_LOG_ERR, "core: Failed to determine current "
+                       sdb_log(SDB_LOG_ERR, "Failed to determine current "
                                        "time in collector main loop: %s",
                                        sdb_strerror(errno, errbuf, sizeof(errbuf)));
                        now = CCB(obj)->ccb_next_update;
                }
 
                if (now > CCB(obj)->ccb_next_update) {
-                       sdb_log(SDB_LOG_WARNING, "core: Plugin '%s' took too "
+                       sdb_log(SDB_LOG_WARNING, "Plugin '%s' took too "
                                        "long; skipping iterations to keep up.",
                                        obj->name);
                        CCB(obj)->ccb_next_update = now;
@@ -1484,9 +1476,8 @@ sdb_plugin_collector_loop(sdb_plugin_loop_t *loop)
 
                if (sdb_llist_insert_sorted(collector_list, obj,
                                        plugin_cmp_next_update)) {
-                       sdb_log(SDB_LOG_ERR, "core: Failed to re-insert "
-                                       "plugin '%s' into collector list. Unable to further "
-                                       "use the plugin.",
+                       sdb_log(SDB_LOG_ERR, "Failed to re-insert plugin '%s' into "
+                                       "collector list. Unable to further use the plugin.",
                                        obj->name);
                        sdb_object_deref(obj);
                        return -1;
@@ -1532,35 +1523,50 @@ sdb_plugin_cname(char *hostname)
 int
 sdb_plugin_log(int prio, const char *msg)
 {
-       sdb_llist_iter_t *iter;
+       const sdb_plugin_info_t *info;
        int ret = -1;
 
-       bool logged = 0;
-
        if (! msg)
                return 0;
 
-       iter = sdb_llist_get_iter(log_list);
-       while (sdb_llist_iter_has_next(iter)) {
-               sdb_plugin_log_cb callback;
-               int tmp;
+       info = sdb_plugin_current();
 
-               sdb_object_t *obj = sdb_llist_iter_get_next(iter);
-               assert(obj);
+       {
+               const char *plugin_name = info ? info->plugin_name : "";
+               char log_msg[strlen(msg) + strlen(plugin_name) + strlen(" plugin: ") + 1];
 
-               callback = (sdb_plugin_log_cb)CB(obj)->cb_callback;
-               tmp = callback(prio, msg, CB(obj)->cb_user_data);
-               if (tmp > ret)
-                       ret = tmp;
+               sdb_llist_iter_t *iter;
+               bool logged = 0;
 
-               if (CB(obj)->cb_ctx)
-                       logged = 1;
-               /* else: this is an internally registered callback */
-       }
-       sdb_llist_iter_destroy(iter);
+               if (*plugin_name)
+                       snprintf(log_msg, sizeof(log_msg), "%s plugin: %s",
+                                       plugin_name, msg);
+               else
+                       strncpy(log_msg, msg, sizeof(log_msg));
+
+               iter = sdb_llist_get_iter(log_list);
+               while (sdb_llist_iter_has_next(iter)) {
+                       sdb_plugin_log_cb callback;
+                       int tmp;
+
+                       sdb_object_t *obj = sdb_llist_iter_get_next(iter);
+                       assert(obj);
+
+                       callback = (sdb_plugin_log_cb)CB(obj)->cb_callback;
+                       tmp = callback(prio, msg, CB(obj)->cb_user_data);
+                       if (tmp > ret)
+                               ret = tmp;
+
+                       if (CB(obj)->cb_ctx)
+                               logged = 1;
+                       /* else: this is an internally registered callback */
+               }
+               sdb_llist_iter_destroy(iter);
 
-       if (! logged)
-               return fprintf(stderr, "[%s] %s\n", SDB_LOG_PRIO_TO_STRING(prio), msg);
+               if (! logged)
+                       return fprintf(stderr, "[%s] %s\n",
+                                       SDB_LOG_PRIO_TO_STRING(prio), log_msg);
+       }
        return ret;
 } /* sdb_plugin_log */
 
@@ -1619,7 +1625,7 @@ sdb_plugin_fetch_timeseries(const char *type, const char *id,
 
        fetcher = TS_FETCHER(sdb_llist_search_by_name(timeseries_fetcher_list, type));
        if (! fetcher) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot fetch time-series of type %s: "
+               sdb_log(SDB_LOG_ERR, "Cannot fetch time-series of type %s: "
                                "no such plugin loaded", type);
                errno = ENOENT;
                return NULL;
@@ -1644,7 +1650,7 @@ sdb_plugin_describe_timeseries(const char *type, const char *id)
 
        fetcher = TS_FETCHER(sdb_llist_search_by_name(timeseries_fetcher_list, type));
        if (! fetcher) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot describe time-series of type %s: "
+               sdb_log(SDB_LOG_ERR, "Cannot describe time-series of type %s: "
                                "no such plugin loaded", type);
                errno = ENOENT;
                return NULL;
@@ -1677,7 +1683,7 @@ sdb_plugin_query(sdb_ast_node_t *ast,
        if ((ast->type != SDB_AST_TYPE_FETCH)
                        && (ast->type != SDB_AST_TYPE_LIST)
                        && (ast->type != SDB_AST_TYPE_LOOKUP)) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot execute query of type %s",
+               sdb_log(SDB_LOG_ERR, "Cannot execute query of type %s",
                                SDB_AST_TYPE_TO_STRING(ast));
                sdb_strbuf_sprintf(errbuf, "Cannot execute query of type %s",
                                SDB_AST_TYPE_TO_STRING(ast));
@@ -1689,7 +1695,7 @@ sdb_plugin_query(sdb_ast_node_t *ast,
                        ? "Cannot execute query: multiple readers not supported"
                        : "Cannot execute query: no readers registered";
                sdb_strbuf_sprintf(errbuf, "%s", msg);
-               sdb_log(SDB_LOG_ERR, "core: %s", msg);
+               sdb_log(SDB_LOG_ERR, "%s", msg);
                return -1;
        }
 
@@ -1722,14 +1728,13 @@ sdb_plugin_store_host(const char *name, sdb_time_t last_update)
                return -1;
 
        if (! sdb_llist_len(writer_list)) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot store host: "
-                               "no writers registered");
+               sdb_log(SDB_LOG_ERR, "Cannot store host: no writers registered");
                return -1;
        }
 
        cname = sdb_plugin_cname(strdup(name));
        if (! cname) {
-               sdb_log(SDB_LOG_ERR, "core: strdup failed");
+               sdb_log(SDB_LOG_ERR, "strdup failed");
                return -1;
        }
 
@@ -1774,14 +1779,14 @@ sdb_plugin_store_service(const char *hostname, const char *name,
                return -1;
 
        if (! sdb_llist_len(writer_list)) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot store service: "
+               sdb_log(SDB_LOG_ERR, "Cannot store service: "
                                "no writers registered");
                return -1;
        }
 
        cname = sdb_plugin_cname(strdup(hostname));
        if (! cname) {
-               sdb_log(SDB_LOG_ERR, "core: strdup failed");
+               sdb_log(SDB_LOG_ERR, "strdup failed");
                return -1;
        }
 
@@ -1837,14 +1842,13 @@ sdb_plugin_store_metric(const char *hostname, const char *name,
                return -1;
 
        if (! sdb_llist_len(writer_list)) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot store metric: "
-                               "no writers registered");
+               sdb_log(SDB_LOG_ERR, "Cannot store metric: no writers registered");
                return -1;
        }
 
        cname = sdb_plugin_cname(strdup(hostname));
        if (! cname) {
-               sdb_log(SDB_LOG_ERR, "core: strdup failed");
+               sdb_log(SDB_LOG_ERR, "strdup failed");
                return -1;
        }
 
@@ -1907,14 +1911,13 @@ sdb_plugin_store_attribute(const char *hostname, const char *key,
                return -1;
 
        if (! sdb_llist_len(writer_list)) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot store attribute: "
-                               "no writers registered");
+               sdb_log(SDB_LOG_ERR, "Cannot store attribute: no writers registered");
                return -1;
        }
 
        cname = sdb_plugin_cname(strdup(hostname));
        if (! cname) {
-               sdb_log(SDB_LOG_ERR, "core: strdup failed");
+               sdb_log(SDB_LOG_ERR, "strdup failed");
                return -1;
        }
 
@@ -1960,14 +1963,14 @@ sdb_plugin_store_service_attribute(const char *hostname, const char *service,
                return -1;
 
        if (! sdb_llist_len(writer_list)) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot store service attribute: "
+               sdb_log(SDB_LOG_ERR, "Cannot store service attribute: "
                                "no writers registered");
                return -1;
        }
 
        cname = sdb_plugin_cname(strdup(hostname));
        if (! cname) {
-               sdb_log(SDB_LOG_ERR, "core: strdup failed");
+               sdb_log(SDB_LOG_ERR, "strdup failed");
                return -1;
        }
 
@@ -2014,14 +2017,14 @@ sdb_plugin_store_metric_attribute(const char *hostname, const char *metric,
                return -1;
 
        if (! sdb_llist_len(writer_list)) {
-               sdb_log(SDB_LOG_ERR, "core: Cannot store metric attribute: "
+               sdb_log(SDB_LOG_ERR, "Cannot store metric attribute: "
                                "no writers registered");
                return -1;
        }
 
        cname = sdb_plugin_cname(strdup(hostname));
        if (! cname) {
-               sdb_log(SDB_LOG_ERR, "core: strdup failed");
+               sdb_log(SDB_LOG_ERR, "strdup failed");
                return -1;
        }