diff options
Diffstat (limited to 'database/contexts/rrdcontext.c')
| -rw-r--r-- | database/contexts/rrdcontext.c | 324 |
1 files changed, 324 insertions, 0 deletions
diff --git a/database/contexts/rrdcontext.c b/database/contexts/rrdcontext.c new file mode 100644 index 00000000..40a7e420 --- /dev/null +++ b/database/contexts/rrdcontext.c @@ -0,0 +1,324 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "internal.h" + +// ---------------------------------------------------------------------------- +// visualizing flags + +struct rrdcontext_reason rrdcontext_reasons[] = { + // context related + {RRD_FLAG_UPDATE_REASON_TRIGGERED, "triggered transition", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_NEW_OBJECT, "object created", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_UPDATED_OBJECT, "object updated", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_LOAD_SQL, "loaded from sql", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_CHANGED_METADATA, "changed metadata", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_ZERO_RETENTION, "has no retention", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_CHANGED_FIRST_TIME_T, "updated first_time_t", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_CHANGED_LAST_TIME_T, "updated last_time_t", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_STOPPED_BEING_COLLECTED, "stopped collected", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_STARTED_BEING_COLLECTED, "started collected", 5 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_UNUSED, "unused", 5 * USEC_PER_SEC }, + + // not context related + {RRD_FLAG_UPDATE_REASON_CHANGED_LINKING, "changed rrd link", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_DISCONNECTED_CHILD, "child disconnected", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_DB_ROTATION, "db rotation", 65 * USEC_PER_SEC }, + {RRD_FLAG_UPDATE_REASON_UPDATE_RETENTION, "updated retention", 65 * USEC_PER_SEC }, + + // terminator + {0, NULL, 0 }, +}; + +void rrd_reasons_to_buffer_json_array_items(RRD_FLAGS flags, BUFFER *wb) { + for(int i = 0, added = 0; rrdcontext_reasons[i].name ; i++) { + if (flags & rrdcontext_reasons[i].flag) { + buffer_json_add_array_item_string(wb, rrdcontext_reasons[i].name); + added++; + } + } +} +// ---------------------------------------------------------------------------- +// public API + +void rrdcontext_updated_rrddim(RRDDIM *rd) { + rrdmetric_from_rrddim(rd); +} + +void rrdcontext_removed_rrddim(RRDDIM *rd) { + rrdmetric_rrddim_is_freed(rd); +} + +void rrdcontext_updated_rrddim_algorithm(RRDDIM *rd) { + rrdmetric_updated_rrddim_flags(rd); +} + +void rrdcontext_updated_rrddim_multiplier(RRDDIM *rd) { + rrdmetric_updated_rrddim_flags(rd); +} + +void rrdcontext_updated_rrddim_divisor(RRDDIM *rd) { + rrdmetric_updated_rrddim_flags(rd); +} + +void rrdcontext_updated_rrddim_flags(RRDDIM *rd) { + rrdmetric_updated_rrddim_flags(rd); +} + +void rrdcontext_collected_rrddim(RRDDIM *rd) { + rrdmetric_collected_rrddim(rd); +} + +void rrdcontext_updated_rrdset(RRDSET *st) { + rrdinstance_from_rrdset(st); +} + +void rrdcontext_removed_rrdset(RRDSET *st) { + rrdinstance_rrdset_is_freed(st); +} + +void rrdcontext_updated_retention_rrdset(RRDSET *st) { + rrdinstance_rrdset_has_updated_retention(st); +} + +void rrdcontext_updated_rrdset_name(RRDSET *st) { + rrdinstance_updated_rrdset_name(st); +} + +void rrdcontext_updated_rrdset_flags(RRDSET *st) { + rrdinstance_updated_rrdset_flags(st); +} + +void rrdcontext_collected_rrdset(RRDSET *st) { + rrdinstance_collected_rrdset(st); +} + +void rrdcontext_host_child_connected(RRDHOST *host) { + (void)host; + + // no need to do anything here + ; +} + +usec_t rrdcontext_next_db_rotation_ut = 0; +void rrdcontext_db_rotation(void) { + // called when the db rotates its database + rrdcontext_next_db_rotation_ut = now_realtime_usec() + FULL_RETENTION_SCAN_DELAY_AFTER_DB_ROTATION_SECS * USEC_PER_SEC; +} + +int rrdcontext_find_dimension_uuid(RRDSET *st, const char *id, uuid_t *store_uuid) { + if(!st->rrdhost) return 1; + if(!st->context) return 2; + + RRDCONTEXT_ACQUIRED *rca = (RRDCONTEXT_ACQUIRED *)dictionary_get_and_acquire_item(st->rrdhost->rrdctx.contexts, string2str(st->context)); + if(!rca) return 3; + + RRDCONTEXT *rc = rrdcontext_acquired_value(rca); + + RRDINSTANCE_ACQUIRED *ria = (RRDINSTANCE_ACQUIRED *)dictionary_get_and_acquire_item(rc->rrdinstances, string2str(st->id)); + if(!ria) { + rrdcontext_release(rca); + return 4; + } + + RRDINSTANCE *ri = rrdinstance_acquired_value(ria); + + RRDMETRIC_ACQUIRED *rma = (RRDMETRIC_ACQUIRED *)dictionary_get_and_acquire_item(ri->rrdmetrics, id); + if(!rma) { + rrdinstance_release(ria); + rrdcontext_release(rca); + return 5; + } + + RRDMETRIC *rm = rrdmetric_acquired_value(rma); + + uuid_copy(*store_uuid, rm->uuid); + + rrdmetric_release(rma); + rrdinstance_release(ria); + rrdcontext_release(rca); + return 0; +} + +int rrdcontext_find_chart_uuid(RRDSET *st, uuid_t *store_uuid) { + if(!st->rrdhost) return 1; + if(!st->context) return 2; + + RRDCONTEXT_ACQUIRED *rca = (RRDCONTEXT_ACQUIRED *)dictionary_get_and_acquire_item(st->rrdhost->rrdctx.contexts, string2str(st->context)); + if(!rca) return 3; + + RRDCONTEXT *rc = rrdcontext_acquired_value(rca); + + RRDINSTANCE_ACQUIRED *ria = (RRDINSTANCE_ACQUIRED *)dictionary_get_and_acquire_item(rc->rrdinstances, string2str(st->id)); + if(!ria) { + rrdcontext_release(rca); + return 4; + } + + RRDINSTANCE *ri = rrdinstance_acquired_value(ria); + uuid_copy(*store_uuid, ri->uuid); + + rrdinstance_release(ria); + rrdcontext_release(rca); + return 0; +} + +void rrdcontext_host_child_disconnected(RRDHOST *host) { + rrdcontext_recalculate_host_retention(host, RRD_FLAG_UPDATE_REASON_DISCONNECTED_CHILD, false); +} + +int rrdcontext_foreach_instance_with_rrdset_in_context(RRDHOST *host, const char *context, int (*callback)(RRDSET *st, void *data), void *data) { + if(unlikely(!host || !context || !*context || !callback)) + return -1; + + RRDCONTEXT_ACQUIRED *rca = (RRDCONTEXT_ACQUIRED *)dictionary_get_and_acquire_item(host->rrdctx.contexts, context); + if(unlikely(!rca)) return -1; + + RRDCONTEXT *rc = rrdcontext_acquired_value(rca); + if(unlikely(!rc)) return -1; + + int ret = 0; + RRDINSTANCE *ri; + dfe_start_read(rc->rrdinstances, ri) { + if(ri->rrdset) { + int r = callback(ri->rrdset, data); + if(r >= 0) ret += r; + else { + ret = r; + break; + } + } + } + dfe_done(ri); + + rrdcontext_release(rca); + + return ret; +} + +// ---------------------------------------------------------------------------- +// ACLK interface + +static bool rrdhost_check_our_claim_id(const char *claim_id) { + if(!localhost->aclk_state.claimed_id) return false; + return (strcasecmp(claim_id, localhost->aclk_state.claimed_id) == 0) ? true : false; +} + +static RRDHOST *rrdhost_find_by_node_id(const char *node_id) { + uuid_t uuid; + if (uuid_parse(node_id, uuid)) + return NULL; + + RRDHOST *host = NULL; + dfe_start_read(rrdhost_root_index, host) { + if(!host->node_id) continue; + + if(uuid_memcmp(&uuid, host->node_id) == 0) + break; + } + dfe_done(host); + + return host; +} + +void rrdcontext_hub_checkpoint_command(void *ptr) { + struct ctxs_checkpoint *cmd = ptr; + + if(!rrdhost_check_our_claim_id(cmd->claim_id)) { + error("RRDCONTEXT: received checkpoint command for claim_id '%s', node id '%s', but this is not our claim id. Ours '%s', received '%s'. Ignoring command.", + cmd->claim_id, cmd->node_id, + localhost->aclk_state.claimed_id?localhost->aclk_state.claimed_id:"NOT SET", + cmd->claim_id); + + return; + } + + RRDHOST *host = rrdhost_find_by_node_id(cmd->node_id); + if(!host) { + error("RRDCONTEXT: received checkpoint command for claim id '%s', node id '%s', but there is no node with such node id here. Ignoring command.", + cmd->claim_id, cmd->node_id); + + return; + } + + if(rrdhost_flag_check(host, RRDHOST_FLAG_ACLK_STREAM_CONTEXTS)) { + info("RRDCONTEXT: received checkpoint command for claim id '%s', node id '%s', while node '%s' has an active context streaming.", + cmd->claim_id, cmd->node_id, rrdhost_hostname(host)); + + // disable it temporarily, so that our worker will not attempt to send messages in parallel + rrdhost_flag_clear(host, RRDHOST_FLAG_ACLK_STREAM_CONTEXTS); + } + + uint64_t our_version_hash = rrdcontext_version_hash(host); + + if(cmd->version_hash != our_version_hash) { + error("RRDCONTEXT: received version hash %"PRIu64" for host '%s', does not match our version hash %"PRIu64". Sending snapshot of all contexts.", + cmd->version_hash, rrdhost_hostname(host), our_version_hash); + +#ifdef ENABLE_ACLK + // prepare the snapshot + char uuid[UUID_STR_LEN]; + uuid_unparse_lower(*host->node_id, uuid); + contexts_snapshot_t bundle = contexts_snapshot_new(cmd->claim_id, uuid, our_version_hash); + + // do a deep scan on every metric of the host to make sure all our data are updated + rrdcontext_recalculate_host_retention(host, RRD_FLAG_NONE, false); + + // calculate version hash and pack all the messages together in one go + our_version_hash = rrdcontext_version_hash_with_callback(host, rrdcontext_message_send_unsafe, true, bundle); + + // update the version + contexts_snapshot_set_version(bundle, our_version_hash); + + // send it + aclk_send_contexts_snapshot(bundle); +#endif + } + + internal_error(true, "RRDCONTEXT: host '%s' enabling streaming of contexts", rrdhost_hostname(host)); + rrdhost_flag_set(host, RRDHOST_FLAG_ACLK_STREAM_CONTEXTS); + char node_str[UUID_STR_LEN]; + uuid_unparse_lower(*host->node_id, node_str); + log_access("ACLK REQ [%s (%s)]: STREAM CONTEXTS ENABLED", node_str, rrdhost_hostname(host)); +} + +void rrdcontext_hub_stop_streaming_command(void *ptr) { + struct stop_streaming_ctxs *cmd = ptr; + + if(!rrdhost_check_our_claim_id(cmd->claim_id)) { + error("RRDCONTEXT: received stop streaming command for claim_id '%s', node id '%s', but this is not our claim id. Ours '%s', received '%s'. Ignoring command.", + cmd->claim_id, cmd->node_id, + localhost->aclk_state.claimed_id?localhost->aclk_state.claimed_id:"NOT SET", + cmd->claim_id); + + return; + } + + RRDHOST *host = rrdhost_find_by_node_id(cmd->node_id); + if(!host) { + error("RRDCONTEXT: received stop streaming command for claim id '%s', node id '%s', but there is no node with such node id here. Ignoring command.", + cmd->claim_id, cmd->node_id); + + return; + } + + if(!rrdhost_flag_check(host, RRDHOST_FLAG_ACLK_STREAM_CONTEXTS)) { + error("RRDCONTEXT: received stop streaming command for claim id '%s', node id '%s', but node '%s' does not have active context streaming. Ignoring command.", + cmd->claim_id, cmd->node_id, rrdhost_hostname(host)); + + return; + } + + internal_error(true, "RRDCONTEXT: host '%s' disabling streaming of contexts", rrdhost_hostname(host)); + rrdhost_flag_clear(host, RRDHOST_FLAG_ACLK_STREAM_CONTEXTS); +} + +bool rrdcontext_retention_match(RRDCONTEXT_ACQUIRED *rca, time_t after, time_t before) { + if(unlikely(!rca)) return false; + + RRDCONTEXT *rc = rrdcontext_acquired_value(rca); + + if(rrd_flag_is_collected(rc)) + return query_matches_retention(after, before, rc->first_time_s, before > rc->last_time_s ? before : rc->last_time_s, 1); + else + return query_matches_retention(after, before, rc->first_time_s, rc->last_time_s, 1); +}
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