netdata/database/sqlite/sqlite_aclk.c at master · sourcecodes2/netdata · GitHub

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// SPDX-License-Identifier: GPL-3.0-or-later

#include "sqlite_functions.h"

#include "sqlite_aclk.h"

#include "sqlite_aclk_chart.h"

#include "sqlite_aclk_node.h"

#ifdef ENABLE_NEW_CLOUD_PROTOCOL

#include "../../aclk/aclk.h"

#endif

const char *aclk_sync_config[] = {

"CREATE TABLE IF NOT EXISTS dimension_delete (dimension_id blob, dimension_name text, chart_type_id text, "

"dim_id blob, chart_id blob, host_id blob, date_created);",

"CREATE INDEX IF NOT EXISTS ind_h1 ON dimension_delete (host_id);",

"CREATE TRIGGER IF NOT EXISTS tr_dim_del AFTER DELETE ON dimension BEGIN INSERT INTO dimension_delete "

"(dimension_id, dimension_name, chart_type_id, dim_id, chart_id, host_id, date_created)"

" select old.id, old.name, c.type||\".\"||c.id, old.dim_id, old.chart_id, c.host_id, strftime('%s') FROM"

" chart c WHERE c.chart_id = old.chart_id; END;",

"DELETE FROM dimension_delete WHERE host_id NOT IN"

" (SELECT host_id FROM host) OR strftime('%s') - date_created > 604800;",

NULL,

};

uv_mutex_t aclk_async_lock;

struct aclk_database_worker_config *aclk_thread_head = NULL;

int claimed()

{

int rc;

rrdhost_aclk_state_lock(localhost);

rc = (localhost->aclk_state.claimed_id != NULL);

rrdhost_aclk_state_unlock(localhost);

return rc;

}

void aclk_add_worker_thread(struct aclk_database_worker_config *wc)

{

if (unlikely(!wc))

return;

uv_mutex_lock(&aclk_async_lock);

if (unlikely(!wc->host)) {

wc->next = aclk_thread_head;

aclk_thread_head = wc;

}

uv_mutex_unlock(&aclk_async_lock);

return;

}

void aclk_del_worker_thread(struct aclk_database_worker_config *wc)

{

if (unlikely(!wc))

return;

uv_mutex_lock(&aclk_async_lock);

struct aclk_database_worker_config **tmp = &aclk_thread_head;

while (*tmp && (*tmp) != wc)

tmp = &(*tmp)->next;

if (*tmp)

*tmp = wc->next;

uv_mutex_unlock(&aclk_async_lock);

return;

}

int aclk_worker_thread_exists(char *guid)

{

int rc = 0;

uv_mutex_lock(&aclk_async_lock);

struct aclk_database_worker_config *tmp = aclk_thread_head;

while (tmp && !rc) {

rc = strcmp(tmp->uuid_str, guid) == 0;

tmp = tmp->next;

}

uv_mutex_unlock(&aclk_async_lock);

return rc;

}

void aclk_database_init_cmd_queue(struct aclk_database_worker_config *wc)

{

wc->cmd_queue.head = wc->cmd_queue.tail = 0;

wc->queue_size = 0;

fatal_assert(0 == uv_cond_init(&wc->cmd_cond));

fatal_assert(0 == uv_mutex_init(&wc->cmd_mutex));

}

int aclk_database_enq_cmd_noblock(struct aclk_database_worker_config *wc, struct aclk_database_cmd *cmd)

{

unsigned queue_size;

/* wait for free space in queue */

uv_mutex_lock(&wc->cmd_mutex);

if ((queue_size = wc->queue_size) == ACLK_DATABASE_CMD_Q_MAX_SIZE || wc->is_shutting_down) {

uv_mutex_unlock(&wc->cmd_mutex);

return 1;

}

fatal_assert(queue_size < ACLK_DATABASE_CMD_Q_MAX_SIZE);

/* enqueue command */

wc->cmd_queue.cmd_array[wc->cmd_queue.tail] = *cmd;

wc->cmd_queue.tail = wc->cmd_queue.tail != ACLK_DATABASE_CMD_Q_MAX_SIZE - 1 ?

wc->cmd_queue.tail + 1 : 0;

wc->queue_size = queue_size + 1;

uv_mutex_unlock(&wc->cmd_mutex);

return 0;

}

void aclk_database_enq_cmd(struct aclk_database_worker_config *wc, struct aclk_database_cmd *cmd)

{

unsigned queue_size;

/* wait for free space in queue */

uv_mutex_lock(&wc->cmd_mutex);

if (wc->is_shutting_down) {

uv_mutex_unlock(&wc->cmd_mutex);

return;

}

while ((queue_size = wc->queue_size) == ACLK_DATABASE_CMD_Q_MAX_SIZE) {

uv_cond_wait(&wc->cmd_cond, &wc->cmd_mutex);

}

fatal_assert(queue_size < ACLK_DATABASE_CMD_Q_MAX_SIZE);

/* enqueue command */

wc->cmd_queue.cmd_array[wc->cmd_queue.tail] = *cmd;

wc->cmd_queue.tail = wc->cmd_queue.tail != ACLK_DATABASE_CMD_Q_MAX_SIZE - 1 ?

wc->cmd_queue.tail + 1 : 0;

wc->queue_size = queue_size + 1;

uv_mutex_unlock(&wc->cmd_mutex);

/* wake up event loop */

int rc = uv_async_send(&wc->async);

if (unlikely(rc))

debug(D_ACLK_SYNC, "Failed to wake up event loop");

}

struct aclk_database_cmd aclk_database_deq_cmd(struct aclk_database_worker_config* wc)

{

struct aclk_database_cmd ret;

unsigned queue_size;

uv_mutex_lock(&wc->cmd_mutex);

queue_size = wc->queue_size;

if (queue_size == 0 || wc->is_shutting_down) {

memset(&ret, 0, sizeof(ret));

ret.opcode = ACLK_DATABASE_NOOP;

ret.completion = NULL;

if (wc->is_shutting_down)

uv_cond_signal(&wc->cmd_cond);

} else {

/* dequeue command */

ret = wc->cmd_queue.cmd_array[wc->cmd_queue.head];

if (queue_size == 1) {

wc->cmd_queue.head = wc->cmd_queue.tail = 0;

} else {

wc->cmd_queue.head = wc->cmd_queue.head != ACLK_DATABASE_CMD_Q_MAX_SIZE - 1 ?

wc->cmd_queue.head + 1 : 0;

}

wc->queue_size = queue_size - 1;

/* wake up producers */

uv_cond_signal(&wc->cmd_cond);

}

uv_mutex_unlock(&wc->cmd_mutex);

return ret;

}

int aclk_worker_enq_cmd(char *node_id, struct aclk_database_cmd *cmd)

{

if (unlikely(!node_id || !cmd))

return 0;

uv_mutex_lock(&aclk_async_lock);

struct aclk_database_worker_config *wc = aclk_thread_head;

while (wc) {

if (!strcmp(wc->node_id, node_id))

break;

wc = wc->next;

}

uv_mutex_unlock(&aclk_async_lock);

if (wc)

aclk_database_enq_cmd(wc, cmd);

return (wc == NULL);

}

void aclk_sync_exit_all()

{

rrd_wrlock();

RRDHOST *host = localhost;

while(host) {

struct aclk_database_worker_config *wc = host->dbsync_worker;

if (wc) {

wc->is_shutting_down = 1;

(void) aclk_database_deq_cmd(wc);

uv_cond_signal(&wc->cmd_cond);

}

host = host->next;

}

rrd_unlock();

uv_mutex_lock(&aclk_async_lock);

struct aclk_database_worker_config *wc = aclk_thread_head;

while (wc) {

wc->is_shutting_down = 1;

wc = wc->next;

}

uv_mutex_unlock(&aclk_async_lock);

}

int aclk_start_sync_thread(void *data, int argc, char **argv, char **column)

{

char uuid_str[GUID_LEN + 1];

UNUSED(data);

UNUSED(argc);

UNUSED(column);

uuid_unparse_lower(*((uuid_t *) argv[0]), uuid_str);

if (rrdhost_find_by_guid(uuid_str, 0) == localhost)

return 0;

sql_create_aclk_table(NULL, (uuid_t *) argv[0], (uuid_t *) argv[1]);

return 0;

}

void sql_aclk_sync_init(void)

{

#ifdef ENABLE_NEW_CLOUD_PROTOCOL

char *err_msg = NULL;

int rc;

if (unlikely(!db_meta)) {

if (default_rrd_memory_mode != RRD_MEMORY_MODE_DBENGINE) {

return;

}

error_report("Database has not been initialized");

return;

}

info("SQLite aclk sync initialization");

for (int i = 0; aclk_sync_config[i]; i++) {

debug(D_ACLK_SYNC, "Executing %s", aclk_sync_config[i]);

rc = sqlite3_exec(db_meta, aclk_sync_config[i], 0, 0, &err_msg);

if (rc != SQLITE_OK) {

error_report("SQLite error aclk sync initialization setup, rc = %d (%s)", rc, err_msg);

error_report("SQLite failed statement %s", aclk_sync_config[i]);

sqlite3_free(err_msg);

return;

}

info("SQLite aclk sync initialization completed");

fatal_assert(0 == uv_mutex_init(&aclk_async_lock));

rc = sqlite3_exec(db_meta, "SELECT ni.host_id, ni.node_id FROM host h, node_instance ni WHERE "

"h.host_id = ni.host_id AND ni.node_id IS NOT NULL;", aclk_start_sync_thread, NULL, NULL);

#endif

return;

}

static void async_cb(uv_async_t *handle)

{

uv_stop(handle->loop);

uv_update_time(handle->loop);

debug(D_ACLK_SYNC, "%s called, active=%d.", __func__, uv_is_active((uv_handle_t *)handle));

}

#define TIMER_PERIOD_MS (1000)

static void timer_cb(uv_timer_t* handle)

{

uv_stop(handle->loop);

uv_update_time(handle->loop);

#ifdef ENABLE_NEW_CLOUD_PROTOCOL

struct aclk_database_worker_config *wc = handle->data;

struct aclk_database_cmd cmd;

memset(&cmd, 0, sizeof(cmd));

cmd.opcode = ACLK_DATABASE_TIMER;

aclk_database_enq_cmd_noblock(wc, &cmd);

time_t now = now_realtime_sec();

if (wc->cleanup_after && wc->cleanup_after < now) {

cmd.opcode = ACLK_DATABASE_CLEANUP;

if (!aclk_database_enq_cmd_noblock(wc, &cmd))

wc->cleanup_after += ACLK_DATABASE_CLEANUP_INTERVAL;

}

if (aclk_use_new_cloud_arch && aclk_connected) {

if (wc->rotation_after && wc->rotation_after < now) {

cmd.opcode = ACLK_DATABASE_NODE_INFO;

aclk_database_enq_cmd_noblock(wc, &cmd);

cmd.opcode = ACLK_DATABASE_UPD_RETENTION;

if (!aclk_database_enq_cmd_noblock(wc, &cmd))

wc->rotation_after += ACLK_DATABASE_ROTATION_INTERVAL;

}

if (wc->chart_updates && !wc->chart_pending && wc->chart_payload_count) {

cmd.opcode = ACLK_DATABASE_PUSH_CHART;

cmd.count = ACLK_MAX_CHART_BATCH;

cmd.param1 = ACLK_MAX_CHART_BATCH_COUNT;

if (!aclk_database_enq_cmd_noblock(wc, &cmd)) {

if (wc->retry_count)

info("Queued chart/dimension payload command %s, retry count = %u", wc->host_guid, wc->retry_count);

wc->chart_pending = 1;

wc->retry_count = 0;

} else {

wc->retry_count++;

if (wc->retry_count % 100 == 0)

error_report("Failed to queue chart/dimension payload command %s, retry count = %u",

wc->host_guid,

wc->retry_count);

}

if (wc->alert_updates) {

cmd.opcode = ACLK_DATABASE_PUSH_ALERT;

cmd.count = ACLK_MAX_ALERT_UPDATES;

aclk_database_enq_cmd_noblock(wc, &cmd);

}

#endif

}

#define MAX_CMD_BATCH_SIZE (256)

void aclk_database_worker(void *arg)

{

struct aclk_database_worker_config *wc = arg;

uv_loop_t *loop;

int ret;

enum aclk_database_opcode opcode;

uv_timer_t timer_req;

struct aclk_database_cmd cmd;

unsigned cmd_batch_size;

//aclk_database_init_cmd_queue(wc);

char threadname[NETDATA_THREAD_NAME_MAX+1];

if (wc->host)

snprintfz(threadname, NETDATA_THREAD_NAME_MAX, "AS_%s", wc->host->hostname);

else {

snprintfz(threadname, NETDATA_THREAD_NAME_MAX, "AS_%s", wc->uuid_str);

threadname[11] = '\0';

}

uv_thread_set_name_np(wc->thread, threadname);

loop = wc->loop = mallocz(sizeof(uv_loop_t));

ret = uv_loop_init(loop);

if (ret) {

error("uv_loop_init(): %s", uv_strerror(ret));

goto error_after_loop_init;

}

loop->data = wc;

ret = uv_async_init(wc->loop, &wc->async, async_cb);

if (ret) {

error("uv_async_init(): %s", uv_strerror(ret));

goto error_after_async_init;

}

wc->async.data = wc;

ret = uv_timer_init(loop, &timer_req);

if (ret) {

error("uv_timer_init(): %s", uv_strerror(ret));

goto error_after_timer_init;

}

timer_req.data = wc;

fatal_assert(0 == uv_timer_start(&timer_req, timer_cb, TIMER_PERIOD_MS, TIMER_PERIOD_MS));

// wc->retry_count = 0;

wc->node_info_send = (wc->host && !localhost);

// aclk_add_worker_thread(wc);

info("Starting ACLK sync thread for host %s -- scratch area %lu bytes", wc->host_guid, sizeof(*wc));

memset(&cmd, 0, sizeof(cmd));

#ifdef ENABLE_NEW_CLOUD_PROTOCOL

sql_get_last_chart_sequence(wc);

wc->chart_payload_count = sql_get_pending_count(wc);

if (!wc->chart_payload_count)

info("%s: No pending charts and dimensions detected during startup", wc->host_guid);

#endif

wc->startup_time = now_realtime_sec();

wc->cleanup_after = wc->startup_time + ACLK_DATABASE_CLEANUP_FIRST;

wc->rotation_after = wc->startup_time + ACLK_DATABASE_ROTATION_DELAY;

debug(D_ACLK_SYNC,"Node %s reports pending message count = %u", wc->node_id, wc->chart_payload_count);

while (likely(!netdata_exit)) {

uv_run(loop, UV_RUN_DEFAULT);

/* wait for commands */

cmd_batch_size = 0;

do {

if (unlikely(cmd_batch_size >= MAX_CMD_BATCH_SIZE))

break;

cmd = aclk_database_deq_cmd(wc);

if (netdata_exit)

break;

opcode = cmd.opcode;

++cmd_batch_size;

switch (opcode) {

case ACLK_DATABASE_NOOP:

/* the command queue was empty, do nothing */

break;

// MAINTENANCE

case ACLK_DATABASE_CLEANUP:

debug(D_ACLK_SYNC, "Database cleanup for %s", wc->host_guid);

sql_maint_aclk_sync_database(wc, cmd);

if (wc->host == localhost)

sql_check_aclk_table_list(wc);

break;

case ACLK_DATABASE_DELETE_HOST:

debug(D_ACLK_SYNC,"Cleaning ACLK tables for %s", (char *) cmd.data);

sql_delete_aclk_table_list(wc, cmd);

break;

// CHART / DIMENSION OPERATIONS

#ifdef ENABLE_NEW_CLOUD_PROTOCOL

case ACLK_DATABASE_ADD_CHART:

debug(D_ACLK_SYNC, "Adding chart event for %s", wc->host_guid);

aclk_add_chart_event(wc, cmd);

break;

case ACLK_DATABASE_ADD_DIMENSION:

debug(D_ACLK_SYNC, "Adding dimension event for %s", wc->host_guid);

aclk_add_dimension_event(wc, cmd);

break;

case ACLK_DATABASE_PUSH_CHART:

debug(D_ACLK_SYNC, "Pushing chart info to the cloud for node %s", wc->host_guid);

aclk_send_chart_event(wc, cmd);

break;

case ACLK_DATABASE_PUSH_CHART_CONFIG:

debug(D_ACLK_SYNC, "Pushing chart config info to the cloud for node %s", wc->host_guid);

aclk_send_chart_config(wc, cmd);

break;

case ACLK_DATABASE_CHART_ACK:

debug(D_ACLK_SYNC, "ACK chart SEQ for %s to %"PRIu64, wc->uuid_str, (uint64_t) cmd.param1);

aclk_receive_chart_ack(wc, cmd);

break;

case ACLK_DATABASE_RESET_CHART:

debug(D_ACLK_SYNC, "RESET chart SEQ for %s to %"PRIu64, wc->uuid_str, (uint64_t) cmd.param1);

aclk_receive_chart_reset(wc, cmd);

break;

#endif

// ALERTS

case ACLK_DATABASE_PUSH_ALERT_CONFIG:

debug(D_ACLK_SYNC,"Pushing chart config info to the cloud for %s", wc->host_guid);

aclk_push_alert_config_event(wc, cmd);

break;

case ACLK_DATABASE_PUSH_ALERT:

debug(D_ACLK_SYNC, "Pushing alert info to the cloud for %s", wc->host_guid);

aclk_push_alert_event(wc, cmd);

break;

case ACLK_DATABASE_ALARM_HEALTH_LOG:

debug(D_ACLK_SYNC, "Pushing alarm health log to the cloud for %s", wc->host_guid);

aclk_push_alarm_health_log(wc, cmd);

break;

case ACLK_DATABASE_PUSH_ALERT_SNAPSHOT:

debug(D_ACLK_SYNC, "Pushing alert snapshot to the cloud for node %s", wc->host_guid);

aclk_push_alert_snapshot_event(wc, cmd);

break;

case ACLK_DATABASE_QUEUE_REMOVED_ALERTS:

debug(D_ACLK_SYNC, "Queueing removed alerts for node %s", wc->host_guid);

sql_process_queue_removed_alerts_to_aclk(wc, cmd);

break;

// NODE OPERATIONS

case ACLK_DATABASE_NODE_INFO:

debug(D_ACLK_SYNC,"Sending node info for %s", wc->uuid_str);

sql_build_node_info(wc, cmd);

break;

#ifdef ENABLE_NEW_CLOUD_PROTOCOL

case ACLK_DATABASE_DIM_DELETION:

debug(D_ACLK_SYNC,"Sending dimension deletion information %s", wc->uuid_str);

aclk_process_dimension_deletion(wc, cmd);

break;

case ACLK_DATABASE_UPD_RETENTION:

debug(D_ACLK_SYNC,"Sending retention info for %s", wc->uuid_str);

aclk_update_retention(wc, cmd);

aclk_process_dimension_deletion(wc, cmd);

break;

#endif

// NODE_INSTANCE DETECTION

case ACLK_DATABASE_TIMER:

if (unlikely(localhost && !wc->host)) {

if (claimed()) {

wc->host = rrdhost_find_by_guid(wc->host_guid, 0);

if (wc->host) {

info("HOST %s (%s) detected as active", wc->host->hostname, wc->host_guid);

snprintfz(threadname, NETDATA_THREAD_NAME_MAX, "AS_%s", wc->host->hostname);

uv_thread_set_name_np(wc->thread, threadname);

wc->host->dbsync_worker = wc;

aclk_del_worker_thread(wc);

wc->node_info_send = 1;

}

if (wc->node_info_send && wc->host && localhost && claimed() && aclk_connected) {

cmd.opcode = ACLK_DATABASE_NODE_INFO;

cmd.completion = NULL;

wc->node_info_send = aclk_database_enq_cmd_noblock(wc, &cmd);

}

break;

default:

debug(D_ACLK_SYNC, "%s: default.", __func__);

break;

}

if (cmd.completion)

aclk_complete(cmd.completion);

} while (opcode != ACLK_DATABASE_NOOP);

}

if (!uv_timer_stop(&timer_req))

uv_close((uv_handle_t *)&timer_req, NULL);

/* cleanup operations of the event loop */

//info("Shutting down ACLK sync event loop for %s", wc->host_guid);

* uv_async_send after uv_close does not seem to crash in linux at the moment,

* it is however undocumented behaviour we need to be aware if this becomes

* an issue in the future.

uv_close((uv_handle_t *)&wc->async, NULL);

uv_run(loop, UV_RUN_DEFAULT);

info("Shutting down ACLK sync event loop complete for host %s", wc->host_guid);

/* TODO: don't let the API block by waiting to enqueue commands */

uv_cond_destroy(&wc->cmd_cond);

/* uv_mutex_destroy(&wc->cmd_mutex); */

//fatal_assert(0 == uv_loop_close(loop));

int rc;

do {

rc = uv_loop_close(loop);

} while (rc != UV_EBUSY);

freez(loop);

rrd_wrlock();

if (likely(wc->host))

wc->host->dbsync_worker = NULL;

freez(wc);

rrd_unlock();

return;

error_after_timer_init:

uv_close((uv_handle_t *)&wc->async, NULL);

error_after_async_init:

fatal_assert(0 == uv_loop_close(loop));

error_after_loop_init:

freez(loop);

}

// -------------------------------------------------------------

void sql_create_aclk_table(RRDHOST *host, uuid_t *host_uuid, uuid_t *node_id)

{

#ifdef ENABLE_ACLK

char uuid_str[GUID_LEN + 1];

char host_guid[GUID_LEN + 1];

uuid_unparse_lower_fix(host_uuid, uuid_str);

if (aclk_worker_thread_exists(uuid_str))

return;

uuid_unparse_lower(*host_uuid, host_guid);

BUFFER *sql = buffer_create(ACLK_SYNC_QUERY_SIZE);

buffer_sprintf(sql, TABLE_ACLK_CHART, uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql, TABLE_ACLK_CHART_PAYLOAD, uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql, TABLE_ACLK_CHART_LATEST, uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql, INDEX_ACLK_CHART, uuid_str, uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql, INDEX_ACLK_CHART_LATEST, uuid_str, uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql, TRIGGER_ACLK_CHART_PAYLOAD, uuid_str, uuid_str, uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql, TABLE_ACLK_ALERT, uuid_str, uuid_str, uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql, INDEX_ACLK_ALERT, uuid_str, uuid_str);

db_execute(buffer_tostring(sql));

buffer_free(sql);

if (likely(host) && unlikely(host->dbsync_worker))

return;

struct aclk_database_worker_config *wc = callocz(1, sizeof(struct aclk_database_worker_config));

if (likely(host))

host->dbsync_worker = (void *) wc;

wc->host = host;

strcpy(wc->uuid_str, uuid_str);

strcpy(wc->host_guid, host_guid);

if (node_id && !uuid_is_null(*node_id))

uuid_unparse_lower(*node_id, wc->node_id);

wc->chart_updates = 0;

wc->alert_updates = 0;

wc->retry_count = 0;

aclk_database_init_cmd_queue(wc);

aclk_add_worker_thread(wc);

fatal_assert(0 == uv_thread_create(&(wc->thread), aclk_database_worker, wc));

#else

UNUSED(host);

UNUSED(host_uuid);

UNUSED(node_id);

#endif

return;

}

void sql_maint_aclk_sync_database(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)

{

UNUSED(cmd);

debug(D_ACLK, "Checking database for %s", wc->host_guid);

BUFFER *sql = buffer_create(ACLK_SYNC_QUERY_SIZE);

buffer_sprintf(sql,"DELETE FROM aclk_chart_%s WHERE date_submitted IS NOT NULL AND "

"date_updated < strftime('%%s','now','-%d seconds');", wc->uuid_str, ACLK_DELETE_ACK_INTERNAL);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql,"DELETE FROM aclk_chart_payload_%s WHERE unique_id NOT IN "

"(SELECT unique_id FROM aclk_chart_%s) AND unique_id NOT IN (SELECT unique_id FROM aclk_chart_latest_%s);",

wc->uuid_str, wc->uuid_str, wc->uuid_str);

db_execute(buffer_tostring(sql));

buffer_flush(sql);

buffer_sprintf(sql,"DELETE FROM aclk_alert_%s WHERE date_submitted IS NOT NULL AND "

"date_cloud_ack < strftime('%%s','now','-%d seconds');", wc->uuid_str, ACLK_DELETE_ACK_ALERTS_INTERNAL);

db_execute(buffer_tostring(sql));

buffer_free(sql);

return;

}

#define SQL_SELECT_HOST_BY_UUID "SELECT host_id FROM host WHERE host_id = @host_id;"

static int is_host_available(uuid_t *host_id)

{

sqlite3_stmt *res = NULL;

int rc;

if (unlikely(!db_meta)) {

if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE)

error_report("Database has not been initialized");

return 1;

}

rc = sqlite3_prepare_v2(db_meta, SQL_SELECT_HOST_BY_UUID, -1, &res, 0);

if (unlikely(rc != SQLITE_OK)) {

error_report("Failed to prepare statement to select node instance information for a node");

return 1;

}

rc = sqlite3_bind_blob(res, 1, host_id, sizeof(*host_id), SQLITE_STATIC);

if (unlikely(rc != SQLITE_OK)) {

error_report("Failed to bind host_id parameter to select node instance information");

goto failed;

}

rc = sqlite3_step(res);

failed:

if (unlikely(sqlite3_finalize(res) != SQLITE_OK))

error_report("Failed to finalize the prepared statement when checking host existence");

return (rc == SQLITE_ROW);

}

// OPCODE: ACLK_DATABASE_DELETE_HOST

void sql_delete_aclk_table_list(struct aclk_database_worker_config *wc, struct aclk_database_cmd cmd)

{

UNUSED(wc);

char uuid_str[GUID_LEN + 1];

char host_str[GUID_LEN + 1];

int rc;

uuid_t host_uuid;

char *host_guid = (char *)cmd.data;

if (unlikely(!host_guid))

return;

rc = uuid_parse(host_guid, host_uuid);

freez(host_guid);

if (rc)

return;

uuid_unparse_lower(host_uuid, host_str);

uuid_unparse_lower_fix(&host_uuid, uuid_str);

debug(D_ACLK_SYNC, "Checking if I should delete aclk tables for node %s", host_str);

if (is_host_available(&host_uuid)) {

debug(D_ACLK_SYNC, "Host %s exists, not deleting aclk sync tables", host_str);

return;

}

debug(D_ACLK_SYNC, "Host %s does NOT exist, can delete aclk sync tables", host_str);

sqlite3_stmt *res = NULL;

BUFFER *sql = buffer_create(ACLK_SYNC_QUERY_SIZE);

buffer_sprintf(sql,"SELECT 'drop '||type||' IF EXISTS '||name||';' FROM sqlite_schema " \

"WHERE name LIKE 'aclk_%%_%s' AND type IN ('table', 'trigger', 'index');", uuid_str);

rc = sqlite3_prepare_v2(db_meta, buffer_tostring(sql), -1, &res, 0);

if (rc != SQLITE_OK) {

error_report("Failed to prepare statement to clean up aclk tables");

goto fail;

}

buffer_flush(sql);

while (sqlite3_step(res) == SQLITE_ROW)

buffer_strcat(sql, (char *) sqlite3_column_text(res, 0));

rc = sqlite3_finalize(res);

if (unlikely(rc != SQLITE_OK))

error_report("Failed to finalize statement to clean up aclk tables, rc = %d", rc);

db_execute(buffer_tostring(sql));

fail:

buffer_free(sql);

return;

}

static int sql_check_aclk_table(void *data, int argc, char **argv, char **column)

{

struct aclk_database_worker_config *wc = data;

UNUSED(argc);

UNUSED(column);

debug(D_ACLK_SYNC,"Scheduling aclk sync table check for node %s", (char *) argv[0]);

struct aclk_database_cmd cmd;

memset(&cmd, 0, sizeof(cmd));

cmd.opcode = ACLK_DATABASE_DELETE_HOST;

cmd.data = strdupz((char *) argv[0]);

aclk_database_enq_cmd_noblock(wc, &cmd);

return 0;

}

#define SQL_SELECT_ACLK_ACTIVE_LIST "SELECT REPLACE(SUBSTR(name,19),'_','-') FROM sqlite_schema " \

"WHERE name LIKE 'aclk_chart_latest_%' AND type IN ('table');"

void sql_check_aclk_table_list(struct aclk_database_worker_config *wc)

{

char *err_msg = NULL;

debug(D_ACLK_SYNC,"Cleaning tables for nodes that do not exist");

int rc = sqlite3_exec(db_meta, SQL_SELECT_ACLK_ACTIVE_LIST, sql_check_aclk_table, (void *) wc, &err_msg);

if (rc != SQLITE_OK) {

error_report("Query failed when trying to check for obsolete ACLK sync tables, %s", err_msg);

sqlite3_free(err_msg);

}

db_execute("DELETE FROM dimension_delete WHERE host_id NOT IN (SELECT host_id FROM host) "

" OR strftime('%s') - date_created > 604800;");

return;

}

void aclk_data_rotated(void)

{

#ifdef ENABLE_NEW_CLOUD_PROTOCOL

if (!aclk_use_new_cloud_arch || !aclk_connected)

return;

time_t next_rotation_time = now_realtime_sec()+ACLK_DATABASE_ROTATION_DELAY;

rrd_wrlock();

RRDHOST *this_host = localhost;

while (this_host) {

struct aclk_database_worker_config *wc = this_host->dbsync_worker;

if (wc)

wc->rotation_after = next_rotation_time;

this_host = this_host->next;

}

rrd_unlock();

struct aclk_database_worker_config *tmp = aclk_thread_head;

uv_mutex_lock(&aclk_async_lock);

while (tmp) {

tmp->rotation_after = next_rotation_time;

tmp = tmp->next;

}

uv_mutex_unlock(&aclk_async_lock);

#endif

return;

}

netdata/database/sqlite/sqlite_aclk.c at master · sourcecodes2/netdata · GitHub

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