diff options
Diffstat (limited to '')
| -rw-r--r-- | database/rrdhost.c | 744 |
1 files changed, 744 insertions, 0 deletions
diff --git a/database/rrdhost.c b/database/rrdhost.c new file mode 100644 index 0000000..7234db9 --- /dev/null +++ b/database/rrdhost.c @@ -0,0 +1,744 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#define NETDATA_RRD_INTERNALS +#include "rrd.h" + +RRDHOST *localhost = NULL; +size_t rrd_hosts_available = 0; +netdata_rwlock_t rrd_rwlock = NETDATA_RWLOCK_INITIALIZER; + +time_t rrdset_free_obsolete_time = 3600; +time_t rrdhost_free_orphan_time = 3600; + +// ---------------------------------------------------------------------------- +// RRDHOST index + +int rrdhost_compare(void* a, void* b) { + if(((RRDHOST *)a)->hash_machine_guid < ((RRDHOST *)b)->hash_machine_guid) return -1; + else if(((RRDHOST *)a)->hash_machine_guid > ((RRDHOST *)b)->hash_machine_guid) return 1; + else return strcmp(((RRDHOST *)a)->machine_guid, ((RRDHOST *)b)->machine_guid); +} + +avl_tree_lock rrdhost_root_index = { + .avl_tree = { NULL, rrdhost_compare }, + .rwlock = AVL_LOCK_INITIALIZER +}; + +RRDHOST *rrdhost_find_by_guid(const char *guid, uint32_t hash) { + debug(D_RRDHOST, "Searching in index for host with guid '%s'", guid); + + RRDHOST tmp; + strncpyz(tmp.machine_guid, guid, GUID_LEN); + tmp.hash_machine_guid = (hash)?hash:simple_hash(tmp.machine_guid); + + return (RRDHOST *)avl_search_lock(&(rrdhost_root_index), (avl *) &tmp); +} + +RRDHOST *rrdhost_find_by_hostname(const char *hostname, uint32_t hash) { + if(unlikely(!strcmp(hostname, "localhost"))) + return localhost; + + if(unlikely(!hash)) hash = simple_hash(hostname); + + rrd_rdlock(); + RRDHOST *host; + rrdhost_foreach_read(host) { + if(unlikely((hash == host->hash_hostname && !strcmp(hostname, host->hostname)))) { + rrd_unlock(); + return host; + } + } + rrd_unlock(); + + return NULL; +} + +#define rrdhost_index_add(rrdhost) (RRDHOST *)avl_insert_lock(&(rrdhost_root_index), (avl *)(rrdhost)) +#define rrdhost_index_del(rrdhost) (RRDHOST *)avl_remove_lock(&(rrdhost_root_index), (avl *)(rrdhost)) + + +// ---------------------------------------------------------------------------- +// RRDHOST - internal helpers + +static inline void rrdhost_init_tags(RRDHOST *host, const char *tags) { + if(host->tags && tags && !strcmp(host->tags, tags)) + return; + + void *old = (void *)host->tags; + host->tags = (tags && *tags)?strdupz(tags):NULL; + freez(old); +} + +static inline void rrdhost_init_hostname(RRDHOST *host, const char *hostname) { + if(host->hostname && hostname && !strcmp(host->hostname, hostname)) + return; + + void *old = host->hostname; + host->hostname = strdupz(hostname?hostname:"localhost"); + host->hash_hostname = simple_hash(host->hostname); + freez(old); +} + +static inline void rrdhost_init_os(RRDHOST *host, const char *os) { + if(host->os && os && !strcmp(host->os, os)) + return; + + void *old = (void *)host->os; + host->os = strdupz(os?os:"unknown"); + freez(old); +} + +static inline void rrdhost_init_timezone(RRDHOST *host, const char *timezone) { + if(host->timezone && timezone && !strcmp(host->timezone, timezone)) + return; + + void *old = (void *)host->timezone; + host->timezone = strdupz((timezone && *timezone)?timezone:"unknown"); + freez(old); +} + +static inline void rrdhost_init_machine_guid(RRDHOST *host, const char *machine_guid) { + strncpy(host->machine_guid, machine_guid, GUID_LEN); + host->machine_guid[GUID_LEN] = '\0'; + host->hash_machine_guid = simple_hash(host->machine_guid); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - add a host + +RRDHOST *rrdhost_create(const char *hostname, + const char *registry_hostname, + const char *guid, + const char *os, + const char *timezone, + const char *tags, + const char *program_name, + const char *program_version, + int update_every, + long entries, + RRD_MEMORY_MODE memory_mode, + unsigned int health_enabled, + unsigned int rrdpush_enabled, + char *rrdpush_destination, + char *rrdpush_api_key, + char *rrdpush_send_charts_matching, + int is_localhost +) { + debug(D_RRDHOST, "Host '%s': adding with guid '%s'", hostname, guid); + + rrd_check_wrlock(); + + RRDHOST *host = callocz(1, sizeof(RRDHOST)); + + host->rrd_update_every = (update_every > 0)?update_every:1; + host->rrd_history_entries = align_entries_to_pagesize(memory_mode, entries); + host->rrd_memory_mode = memory_mode; + host->health_enabled = (memory_mode == RRD_MEMORY_MODE_NONE)? 0 : health_enabled; + host->rrdpush_send_enabled = (rrdpush_enabled && rrdpush_destination && *rrdpush_destination && rrdpush_api_key && *rrdpush_api_key) ? 1 : 0; + host->rrdpush_send_destination = (host->rrdpush_send_enabled)?strdupz(rrdpush_destination):NULL; + host->rrdpush_send_api_key = (host->rrdpush_send_enabled)?strdupz(rrdpush_api_key):NULL; + host->rrdpush_send_charts_matching = simple_pattern_create(rrdpush_send_charts_matching, NULL, SIMPLE_PATTERN_EXACT); + + host->rrdpush_sender_pipe[0] = -1; + host->rrdpush_sender_pipe[1] = -1; + host->rrdpush_sender_socket = -1; + + netdata_mutex_init(&host->rrdpush_sender_buffer_mutex); + netdata_rwlock_init(&host->rrdhost_rwlock); + + rrdhost_init_hostname(host, hostname); + rrdhost_init_machine_guid(host, guid); + + rrdhost_init_os(host, os); + rrdhost_init_timezone(host, timezone); + rrdhost_init_tags(host, tags); + + host->program_name = strdupz((program_name && *program_name)?program_name:"unknown"); + host->program_version = strdupz((program_version && *program_version)?program_version:"unknown"); + host->registry_hostname = strdupz((registry_hostname && *registry_hostname)?registry_hostname:hostname); + + avl_init_lock(&(host->rrdset_root_index), rrdset_compare); + avl_init_lock(&(host->rrdset_root_index_name), rrdset_compare_name); + avl_init_lock(&(host->rrdfamily_root_index), rrdfamily_compare); + avl_init_lock(&(host->rrdvar_root_index), rrdvar_compare); + + if(config_get_boolean(CONFIG_SECTION_GLOBAL, "delete obsolete charts files", 1)) + rrdhost_flag_set(host, RRDHOST_FLAG_DELETE_OBSOLETE_CHARTS); + + if(config_get_boolean(CONFIG_SECTION_GLOBAL, "delete orphan hosts files", 1) && !is_localhost) + rrdhost_flag_set(host, RRDHOST_FLAG_DELETE_ORPHAN_HOST); + + + // ------------------------------------------------------------------------ + // initialize health variables + + host->health_log.next_log_id = 1; + host->health_log.next_alarm_id = 1; + host->health_log.max = 1000; + host->health_log.next_log_id = + host->health_log.next_alarm_id = (uint32_t)now_realtime_sec(); + + long n = config_get_number(CONFIG_SECTION_HEALTH, "in memory max health log entries", host->health_log.max); + if(n < 10) { + error("Host '%s': health configuration has invalid max log entries %ld. Using default %u", host->hostname, n, host->health_log.max); + config_set_number(CONFIG_SECTION_HEALTH, "in memory max health log entries", (long)host->health_log.max); + } + else + host->health_log.max = (unsigned int)n; + + netdata_rwlock_init(&host->health_log.alarm_log_rwlock); + + char filename[FILENAME_MAX + 1]; + + if(is_localhost) { + + host->cache_dir = strdupz(netdata_configured_cache_dir); + host->varlib_dir = strdupz(netdata_configured_varlib_dir); + + } + else { + // this is not localhost - append our GUID to localhost path + + snprintfz(filename, FILENAME_MAX, "%s/%s", netdata_configured_cache_dir, host->machine_guid); + host->cache_dir = strdupz(filename); + + if(host->rrd_memory_mode == RRD_MEMORY_MODE_MAP || host->rrd_memory_mode == RRD_MEMORY_MODE_SAVE) { + int r = mkdir(host->cache_dir, 0775); + if(r != 0 && errno != EEXIST) + error("Host '%s': cannot create directory '%s'", host->hostname, host->cache_dir); + } + + snprintfz(filename, FILENAME_MAX, "%s/%s", netdata_configured_varlib_dir, host->machine_guid); + host->varlib_dir = strdupz(filename); + + if(host->health_enabled) { + int r = mkdir(host->varlib_dir, 0775); + if(r != 0 && errno != EEXIST) + error("Host '%s': cannot create directory '%s'", host->hostname, host->varlib_dir); + } + + } + + if(host->health_enabled) { + snprintfz(filename, FILENAME_MAX, "%s/health", host->varlib_dir); + int r = mkdir(filename, 0775); + if(r != 0 && errno != EEXIST) + error("Host '%s': cannot create directory '%s'", host->hostname, filename); + } + + snprintfz(filename, FILENAME_MAX, "%s/health/health-log.db", host->varlib_dir); + host->health_log_filename = strdupz(filename); + + snprintfz(filename, FILENAME_MAX, "%s/alarm-notify.sh", netdata_configured_plugins_dir); + host->health_default_exec = strdupz(config_get(CONFIG_SECTION_HEALTH, "script to execute on alarm", filename)); + host->health_default_recipient = strdupz("root"); + + + // ------------------------------------------------------------------------ + // load health configuration + + if(host->health_enabled) { + health_alarm_log_load(host); + health_alarm_log_open(host); + + rrdhost_wrlock(host); + health_readdir(host, health_user_config_dir(), health_stock_config_dir(), NULL); + rrdhost_unlock(host); + } + + + // ------------------------------------------------------------------------ + // link it and add it to the index + + if(is_localhost) { + host->next = localhost; + localhost = host; + } + else { + if(localhost) { + host->next = localhost->next; + localhost->next = host; + } + else localhost = host; + } + + RRDHOST *t = rrdhost_index_add(host); + + if(t != host) { + error("Host '%s': cannot add host with machine guid '%s' to index. It already exists as host '%s' with machine guid '%s'.", host->hostname, host->machine_guid, t->hostname, t->machine_guid); + rrdhost_free(host); + host = NULL; + } + else { + info("Host '%s' (at registry as '%s') with guid '%s' initialized" + ", os '%s'" + ", timezone '%s'" + ", tags '%s'" + ", program_name '%s'" + ", program_version '%s'" + ", update every %d" + ", memory mode %s" + ", history entries %ld" + ", streaming %s" + " (to '%s' with api key '%s')" + ", health %s" + ", cache_dir '%s'" + ", varlib_dir '%s'" + ", health_log '%s'" + ", alarms default handler '%s'" + ", alarms default recipient '%s'" + , host->hostname + , host->registry_hostname + , host->machine_guid + , host->os + , host->timezone + , (host->tags)?host->tags:"" + , host->program_name + , host->program_version + , host->rrd_update_every + , rrd_memory_mode_name(host->rrd_memory_mode) + , host->rrd_history_entries + , host->rrdpush_send_enabled?"enabled":"disabled" + , host->rrdpush_send_destination?host->rrdpush_send_destination:"" + , host->rrdpush_send_api_key?host->rrdpush_send_api_key:"" + , host->health_enabled?"enabled":"disabled" + , host->cache_dir + , host->varlib_dir + , host->health_log_filename + , host->health_default_exec + , host->health_default_recipient + ); + } + + rrd_hosts_available++; + + return host; +} + +RRDHOST *rrdhost_find_or_create( + const char *hostname + , const char *registry_hostname + , const char *guid + , const char *os + , const char *timezone + , const char *tags + , const char *program_name + , const char *program_version + , int update_every + , long history + , RRD_MEMORY_MODE mode + , unsigned int health_enabled + , unsigned int rrdpush_enabled + , char *rrdpush_destination + , char *rrdpush_api_key + , char *rrdpush_send_charts_matching +) { + debug(D_RRDHOST, "Searching for host '%s' with guid '%s'", hostname, guid); + + rrd_wrlock(); + RRDHOST *host = rrdhost_find_by_guid(guid, 0); + if(!host) { + host = rrdhost_create( + hostname + , registry_hostname + , guid + , os + , timezone + , tags + , program_name + , program_version + , update_every + , history + , mode + , health_enabled + , rrdpush_enabled + , rrdpush_destination + , rrdpush_api_key + , rrdpush_send_charts_matching + , 0 + ); + } + else { + host->health_enabled = health_enabled; + + if(strcmp(host->hostname, hostname) != 0) { + info("Host '%s' has been renamed to '%s'. If this is not intentional it may mean multiple hosts are using the same machine_guid.", host->hostname, hostname); + char *t = host->hostname; + host->hostname = strdupz(hostname); + host->hash_hostname = simple_hash(host->hostname); + freez(t); + } + + if(strcmp(host->program_name, program_name) != 0) { + info("Host '%s' switched program name from '%s' to '%s'", host->hostname, host->program_name, program_name); + char *t = host->program_name; + host->program_name = strdupz(program_name); + freez(t); + } + + if(strcmp(host->program_version, program_version) != 0) { + info("Host '%s' switched program version from '%s' to '%s'", host->hostname, host->program_version, program_version); + char *t = host->program_version; + host->program_version = strdupz(program_version); + freez(t); + } + + if(host->rrd_update_every != update_every) + error("Host '%s' has an update frequency of %d seconds, but the wanted one is %d seconds. Restart netdata here to apply the new settings.", host->hostname, host->rrd_update_every, update_every); + + if(host->rrd_history_entries < history) + error("Host '%s' has history of %ld entries, but the wanted one is %ld entries. Restart netdata here to apply the new settings.", host->hostname, host->rrd_history_entries, history); + + if(host->rrd_memory_mode != mode) + error("Host '%s' has memory mode '%s', but the wanted one is '%s'. Restart netdata here to apply the new settings.", host->hostname, rrd_memory_mode_name(host->rrd_memory_mode), rrd_memory_mode_name(mode)); + + // update host tags + rrdhost_init_tags(host, tags); + } + + rrdhost_cleanup_orphan_hosts_nolock(host); + + rrd_unlock(); + + return host; +} + +inline int rrdhost_should_be_removed(RRDHOST *host, RRDHOST *protected, time_t now) { + if(host != protected + && host != localhost + && rrdhost_flag_check(host, RRDHOST_FLAG_ORPHAN) + && !host->connected_senders + && host->senders_disconnected_time + && host->senders_disconnected_time + rrdhost_free_orphan_time < now) + return 1; + + return 0; +} + +void rrdhost_cleanup_orphan_hosts_nolock(RRDHOST *protected) { + time_t now = now_realtime_sec(); + + RRDHOST *host; + +restart_after_removal: + rrdhost_foreach_write(host) { + if(rrdhost_should_be_removed(host, protected, now)) { + info("Host '%s' with machine guid '%s' is obsolete - cleaning up.", host->hostname, host->machine_guid); + + if(rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_ORPHAN_HOST)) + rrdhost_delete_charts(host); + else + rrdhost_save_charts(host); + + rrdhost_free(host); + goto restart_after_removal; + } + } +} + +// ---------------------------------------------------------------------------- +// RRDHOST global / startup initialization + +void rrd_init(char *hostname) { + rrdset_free_obsolete_time = config_get_number(CONFIG_SECTION_GLOBAL, "cleanup obsolete charts after seconds", rrdset_free_obsolete_time); + gap_when_lost_iterations_above = (int)config_get_number(CONFIG_SECTION_GLOBAL, "gap when lost iterations above", gap_when_lost_iterations_above); + if (gap_when_lost_iterations_above < 1) + gap_when_lost_iterations_above = 1; + + health_init(); + registry_init(); + rrdpush_init(); + + debug(D_RRDHOST, "Initializing localhost with hostname '%s'", hostname); + rrd_wrlock(); + localhost = rrdhost_create( + hostname + , registry_get_this_machine_hostname() + , registry_get_this_machine_guid() + , os_type + , netdata_configured_timezone + , config_get(CONFIG_SECTION_BACKEND, "host tags", "") + , program_name + , program_version + , default_rrd_update_every + , default_rrd_history_entries + , default_rrd_memory_mode + , default_health_enabled + , default_rrdpush_enabled + , default_rrdpush_destination + , default_rrdpush_api_key + , default_rrdpush_send_charts_matching + , 1 + ); + rrd_unlock(); + web_client_api_v1_management_init(); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - lock validations +// there are only used when NETDATA_INTERNAL_CHECKS is set + +void __rrdhost_check_rdlock(RRDHOST *host, const char *file, const char *function, const unsigned long line) { + debug(D_RRDHOST, "Checking read lock on host '%s'", host->hostname); + + int ret = netdata_rwlock_trywrlock(&host->rrdhost_rwlock); + if(ret == 0) + fatal("RRDHOST '%s' should be read-locked, but it is not, at function %s() at line %lu of file '%s'", host->hostname, function, line, file); +} + +void __rrdhost_check_wrlock(RRDHOST *host, const char *file, const char *function, const unsigned long line) { + debug(D_RRDHOST, "Checking write lock on host '%s'", host->hostname); + + int ret = netdata_rwlock_tryrdlock(&host->rrdhost_rwlock); + if(ret == 0) + fatal("RRDHOST '%s' should be write-locked, but it is not, at function %s() at line %lu of file '%s'", host->hostname, function, line, file); +} + +void __rrd_check_rdlock(const char *file, const char *function, const unsigned long line) { + debug(D_RRDHOST, "Checking read lock on all RRDs"); + + int ret = netdata_rwlock_trywrlock(&rrd_rwlock); + if(ret == 0) + fatal("RRDs should be read-locked, but it are not, at function %s() at line %lu of file '%s'", function, line, file); +} + +void __rrd_check_wrlock(const char *file, const char *function, const unsigned long line) { + debug(D_RRDHOST, "Checking write lock on all RRDs"); + + int ret = netdata_rwlock_tryrdlock(&rrd_rwlock); + if(ret == 0) + fatal("RRDs should be write-locked, but it are not, at function %s() at line %lu of file '%s'", function, line, file); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - free + +void rrdhost_free(RRDHOST *host) { + if(!host) return; + + info("Freeing all memory for host '%s'...", host->hostname); + + rrd_check_wrlock(); // make sure the RRDs are write locked + + // stop a possibly running thread + rrdpush_sender_thread_stop(host); + + rrdhost_wrlock(host); // lock this RRDHOST + + // ------------------------------------------------------------------------ + // release its children resources + + while(host->rrdset_root) + rrdset_free(host->rrdset_root); + + while(host->alarms) + rrdcalc_unlink_and_free(host, host->alarms); + + while(host->templates) + rrdcalctemplate_unlink_and_free(host, host->templates); + + debug(D_RRD_CALLS, "RRDHOST: Cleaning up remaining host variables for host '%s'", host->hostname); + rrdvar_free_remaining_variables(host, &host->rrdvar_root_index); + + health_alarm_log_free(host); + + // ------------------------------------------------------------------------ + // remove it from the indexes + + if(rrdhost_index_del(host) != host) + error("RRDHOST '%s' removed from index, deleted the wrong entry.", host->hostname); + + + // ------------------------------------------------------------------------ + // unlink it from the host + + if(host == localhost) { + localhost = host->next; + } + else { + // find the previous one + RRDHOST *h; + for(h = localhost; h && h->next != host ; h = h->next) ; + + // bypass it + if(h) h->next = host->next; + else error("Request to free RRDHOST '%s': cannot find it", host->hostname); + } + + // ------------------------------------------------------------------------ + // free it + + freez((void *)host->tags); + freez((void *)host->os); + freez((void *)host->timezone); + freez(host->program_version); + freez(host->program_name); + freez(host->cache_dir); + freez(host->varlib_dir); + freez(host->rrdpush_send_api_key); + freez(host->rrdpush_send_destination); + freez(host->health_default_exec); + freez(host->health_default_recipient); + freez(host->health_log_filename); + freez(host->hostname); + freez(host->registry_hostname); + simple_pattern_free(host->rrdpush_send_charts_matching); + rrdhost_unlock(host); + netdata_rwlock_destroy(&host->health_log.alarm_log_rwlock); + netdata_rwlock_destroy(&host->rrdhost_rwlock); + freez(host); + + rrd_hosts_available--; +} + +void rrdhost_free_all(void) { + rrd_wrlock(); + while(localhost) rrdhost_free(localhost); + rrd_unlock(); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - save host files + +void rrdhost_save_charts(RRDHOST *host) { + if(!host) return; + + info("Saving/Closing database of host '%s'...", host->hostname); + + RRDSET *st; + + // we get a write lock + // to ensure only one thread is saving the database + rrdhost_wrlock(host); + + rrdset_foreach_write(st, host) { + rrdset_rdlock(st); + rrdset_save(st); + rrdset_unlock(st); + } + + rrdhost_unlock(host); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - delete host files + +void rrdhost_delete_charts(RRDHOST *host) { + if(!host) return; + + info("Deleting database of host '%s'...", host->hostname); + + RRDSET *st; + + // we get a write lock + // to ensure only one thread is saving the database + rrdhost_wrlock(host); + + rrdset_foreach_write(st, host) { + rrdset_rdlock(st); + rrdset_delete(st); + rrdset_unlock(st); + } + + recursively_delete_dir(host->cache_dir, "left over host"); + + rrdhost_unlock(host); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - cleanup host files + +void rrdhost_cleanup_charts(RRDHOST *host) { + if(!host) return; + + info("Cleaning up database of host '%s'...", host->hostname); + + RRDSET *st; + uint32_t rrdhost_delete_obsolete_charts = rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_OBSOLETE_CHARTS); + + // we get a write lock + // to ensure only one thread is saving the database + rrdhost_wrlock(host); + + rrdset_foreach_write(st, host) { + rrdset_rdlock(st); + + if(rrdhost_delete_obsolete_charts && rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)) + rrdset_delete(st); + else + rrdset_save(st); + + rrdset_unlock(st); + } + + rrdhost_unlock(host); +} + + +// ---------------------------------------------------------------------------- +// RRDHOST - save all hosts to disk + +void rrdhost_save_all(void) { + info("Saving database [%zu hosts(s)]...", rrd_hosts_available); + + rrd_rdlock(); + + RRDHOST *host; + rrdhost_foreach_read(host) + rrdhost_save_charts(host); + + rrd_unlock(); +} + +// ---------------------------------------------------------------------------- +// RRDHOST - save or delete all hosts from disk + +void rrdhost_cleanup_all(void) { + info("Cleaning up database [%zu hosts(s)]...", rrd_hosts_available); + + rrd_rdlock(); + + RRDHOST *host; + rrdhost_foreach_read(host) { + if(host != localhost && rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_OBSOLETE_CHARTS) && !host->connected_senders) + rrdhost_delete_charts(host); + else + rrdhost_cleanup_charts(host); + } + + rrd_unlock(); +} + + +// ---------------------------------------------------------------------------- +// RRDHOST - save or delete all the host charts from disk + +void rrdhost_cleanup_obsolete_charts(RRDHOST *host) { + time_t now = now_realtime_sec(); + + RRDSET *st; + + uint32_t rrdhost_delete_obsolete_charts = rrdhost_flag_check(host, RRDHOST_FLAG_DELETE_OBSOLETE_CHARTS); + +restart_after_removal: + rrdset_foreach_write(st, host) { + if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE) + && st->last_accessed_time + rrdset_free_obsolete_time < now + && st->last_updated.tv_sec + rrdset_free_obsolete_time < now + && st->last_collected_time.tv_sec + rrdset_free_obsolete_time < now + )) { + + rrdset_rdlock(st); + + if(rrdhost_delete_obsolete_charts) + rrdset_delete(st); + else + rrdset_save(st); + + rrdset_unlock(st); + + rrdset_free(st); + goto restart_after_removal; + } + } +} |