Merging upstream version 1.31.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 885 insertions, 0 deletions

diff --git a/daemon/analytics.c b/daemon/analytics.c
new file mode 100644
index 000000000..08923a3cb
--- /dev/null
+++ b/daemon/analytics.c
@@ -0,0 +1,885 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "common.h"
+
+struct analytics_data analytics_data;
+extern void analytics_exporting_connectors (BUFFER *b);
+extern void analytics_build_info (BUFFER *b);
+extern int aclk_connected;
+
+struct collector {
+    char *plugin;
+    char *module;
+};
+
+struct array_printer {
+    int c;
+    BUFFER *both;
+};
+
+/*
+ * Debug logging
+ */
+void analytics_log_data(void)
+{
+    debug(D_ANALYTICS, "NETDATA_CONFIG_STREAM_ENABLED      : [%s]", analytics_data.netdata_config_stream_enabled);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_MEMORY_MODE         : [%s]", analytics_data.netdata_config_memory_mode);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_EXPORTING_ENABLED   : [%s]", analytics_data.netdata_config_exporting_enabled);
+    debug(D_ANALYTICS, "NETDATA_EXPORTING_CONNECTORS       : [%s]", analytics_data.netdata_exporting_connectors);
+    debug(D_ANALYTICS, "NETDATA_ALLMETRICS_PROMETHEUS_USED : [%s]", analytics_data.netdata_allmetrics_prometheus_used);
+    debug(D_ANALYTICS, "NETDATA_ALLMETRICS_SHELL_USED      : [%s]", analytics_data.netdata_allmetrics_shell_used);
+    debug(D_ANALYTICS, "NETDATA_ALLMETRICS_JSON_USED       : [%s]", analytics_data.netdata_allmetrics_json_used);
+    debug(D_ANALYTICS, "NETDATA_DASHBOARD_USED             : [%s]", analytics_data.netdata_dashboard_used);
+    debug(D_ANALYTICS, "NETDATA_COLLECTORS                 : [%s]", analytics_data.netdata_collectors);
+    debug(D_ANALYTICS, "NETDATA_COLLECTORS_COUNT           : [%s]", analytics_data.netdata_collectors_count);
+    debug(D_ANALYTICS, "NETDATA_BUILDINFO                  : [%s]", analytics_data.netdata_buildinfo);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_PAGE_CACHE_SIZE     : [%s]", analytics_data.netdata_config_page_cache_size);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_MULTIDB_DISK_QUOTA  : [%s]", analytics_data.netdata_config_multidb_disk_quota);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_HTTPS_ENABLED       : [%s]", analytics_data.netdata_config_https_enabled);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_WEB_ENABLED         : [%s]", analytics_data.netdata_config_web_enabled);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_RELEASE_CHANNEL     : [%s]", analytics_data.netdata_config_release_channel);
+    debug(D_ANALYTICS, "NETDATA_MIRRORED_HOST_COUNT        : [%s]", analytics_data.netdata_mirrored_host_count);
+    debug(D_ANALYTICS, "NETDATA_MIRRORED_HOSTS_REACHABLE   : [%s]", analytics_data.netdata_mirrored_hosts_reachable);
+    debug(D_ANALYTICS, "NETDATA_MIRRORED_HOSTS_UNREACHABLE : [%s]", analytics_data.netdata_mirrored_hosts_unreachable);
+    debug(D_ANALYTICS, "NETDATA_NOTIFICATION_METHODS       : [%s]", analytics_data.netdata_notification_methods);
+    debug(D_ANALYTICS, "NETDATA_ALARMS_NORMAL              : [%s]", analytics_data.netdata_alarms_normal);
+    debug(D_ANALYTICS, "NETDATA_ALARMS_WARNING             : [%s]", analytics_data.netdata_alarms_warning);
+    debug(D_ANALYTICS, "NETDATA_ALARMS_CRITICAL            : [%s]", analytics_data.netdata_alarms_critical);
+    debug(D_ANALYTICS, "NETDATA_CHARTS_COUNT               : [%s]", analytics_data.netdata_charts_count);
+    debug(D_ANALYTICS, "NETDATA_METRICS_COUNT              : [%s]", analytics_data.netdata_metrics_count);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_IS_PARENT           : [%s]", analytics_data.netdata_config_is_parent);
+    debug(D_ANALYTICS, "NETDATA_CONFIG_HOSTS_AVAILABLE     : [%s]", analytics_data.netdata_config_hosts_available);
+    debug(D_ANALYTICS, "NETDATA_HOST_CLOUD_AVAILABLE       : [%s]", analytics_data.netdata_host_cloud_available);
+    debug(D_ANALYTICS, "NETDATA_HOST_ACLK_AVAILABLE        : [%s]", analytics_data.netdata_host_aclk_available);
+    debug(D_ANALYTICS, "NETDATA_HOST_ACLK_IMPLEMENTATION   : [%s]", analytics_data.netdata_host_aclk_implementation);
+    debug(D_ANALYTICS, "NETDATA_HOST_AGENT_CLAIMED         : [%s]", analytics_data.netdata_host_agent_claimed);
+    debug(D_ANALYTICS, "NETDATA_HOST_CLOUD_ENABLED         : [%s]", analytics_data.netdata_host_cloud_enabled);
+}
+
+/*
+ * Free data
+ */
+void analytics_free_data(void)
+{
+    freez(analytics_data.netdata_config_stream_enabled);
+    freez(analytics_data.netdata_config_memory_mode);
+    freez(analytics_data.netdata_config_exporting_enabled);
+    freez(analytics_data.netdata_exporting_connectors);
+    freez(analytics_data.netdata_allmetrics_prometheus_used);
+    freez(analytics_data.netdata_allmetrics_shell_used);
+    freez(analytics_data.netdata_allmetrics_json_used);
+    freez(analytics_data.netdata_dashboard_used);
+    freez(analytics_data.netdata_collectors);
+    freez(analytics_data.netdata_collectors_count);
+    freez(analytics_data.netdata_buildinfo);
+    freez(analytics_data.netdata_config_page_cache_size);
+    freez(analytics_data.netdata_config_multidb_disk_quota);
+    freez(analytics_data.netdata_config_https_enabled);
+    freez(analytics_data.netdata_config_web_enabled);
+    freez(analytics_data.netdata_config_release_channel);
+    freez(analytics_data.netdata_mirrored_host_count);
+    freez(analytics_data.netdata_mirrored_hosts_reachable);
+    freez(analytics_data.netdata_mirrored_hosts_unreachable);
+    freez(analytics_data.netdata_notification_methods);
+    freez(analytics_data.netdata_alarms_normal);
+    freez(analytics_data.netdata_alarms_warning);
+    freez(analytics_data.netdata_alarms_critical);
+    freez(analytics_data.netdata_charts_count);
+    freez(analytics_data.netdata_metrics_count);
+    freez(analytics_data.netdata_config_is_parent);
+    freez(analytics_data.netdata_config_hosts_available);
+    freez(analytics_data.netdata_host_cloud_available);
+    freez(analytics_data.netdata_host_aclk_available);
+    freez(analytics_data.netdata_host_aclk_implementation);
+    freez(analytics_data.netdata_host_agent_claimed);
+    freez(analytics_data.netdata_host_cloud_enabled);
+}
+
+/*
+ * Set a numeric/boolean data with a value
+ */
+void analytics_set_data(char **name, char *value)
+{
+    if (*name) {
+        analytics_data.data_length -= strlen(*name);
+        freez(*name);
+    }
+    *name = strdupz(value);
+    analytics_data.data_length += strlen(*name);
+}
+
+/*
+ * Set a string data with a value
+ */
+void analytics_set_data_str(char **name, char *value)
+{
+    size_t value_string_len;
+    if (*name) {
+        analytics_data.data_length -= strlen(*name);
+        freez(*name);
+    }
+    value_string_len = strlen(value) + 4;
+    *name = mallocz(sizeof(char) * value_string_len);
+    snprintfz(*name, value_string_len - 1, "\"%s\"", value);
+    analytics_data.data_length += strlen(*name);
+}
+
+/*
+ * Get data, used by web api v1
+ */
+void analytics_get_data(char *name, BUFFER *wb)
+{
+    buffer_strcat(wb, name);
+}
+
+/*
+ * Log hits on the allmetrics page, with prometheus parameter
+ */
+void analytics_log_prometheus(void)
+{
+    if (likely(analytics_data.prometheus_hits < ANALYTICS_MAX_PROMETHEUS_HITS)) {
+        analytics_data.prometheus_hits++;
+        char b[7];
+        snprintfz(b, 6, "%d", analytics_data.prometheus_hits);
+        analytics_set_data(&analytics_data.netdata_allmetrics_prometheus_used, b);
+    }
+}
+
+/*
+ * Log hits on the allmetrics page, with shell parameter (or default)
+ */
+void analytics_log_shell(void)
+{
+    if (likely(analytics_data.shell_hits < ANALYTICS_MAX_SHELL_HITS)) {
+        analytics_data.shell_hits++;
+        char b[7];
+        snprintfz(b, 6, "%d", analytics_data.shell_hits);
+        analytics_set_data(&analytics_data.netdata_allmetrics_shell_used, b);
+    }
+}
+
+/*
+ * Log hits on the allmetrics page, with json parameter
+ */
+void analytics_log_json(void)
+{
+    if (likely(analytics_data.json_hits < ANALYTICS_MAX_JSON_HITS)) {
+        analytics_data.json_hits++;
+        char b[7];
+        snprintfz(b, 6, "%d", analytics_data.json_hits);
+        analytics_set_data(&analytics_data.netdata_allmetrics_json_used, b);
+    }
+}
+
+/*
+ * Log hits on the dashboard, (when calling HELLO).
+ */
+void analytics_log_dashboard(void)
+{
+    if (likely(analytics_data.dashboard_hits < ANALYTICS_MAX_DASHBOARD_HITS)) {
+        analytics_data.dashboard_hits++;
+        char b[7];
+        snprintfz(b, 6, "%d", analytics_data.dashboard_hits);
+        analytics_set_data(&analytics_data.netdata_dashboard_used, b);
+    }
+}
+
+void analytics_mirrored_hosts(void)
+{
+    RRDHOST *host;
+    int count = 0;
+    int reachable = 0;
+    int unreachable = 0;
+    char b[11];
+
+    rrd_rdlock();
+    rrdhost_foreach_read(host)
+    {
+        if (rrdhost_flag_check(host, RRDHOST_FLAG_ARCHIVED))
+            continue;
+
+        netdata_mutex_lock(&host->receiver_lock);
+        ((host->receiver || host == localhost) ? reachable++ : unreachable++);
+        netdata_mutex_unlock(&host->receiver_lock);
+
+        count++;
+    }
+    rrd_unlock();
+
+    snprintfz(b, 10, "%d", count);
+    analytics_set_data(&analytics_data.netdata_mirrored_host_count, b);
+    snprintfz(b, 10, "%d", reachable);
+    analytics_set_data(&analytics_data.netdata_mirrored_hosts_reachable, b);
+    snprintfz(b, 10, "%d", unreachable);
+    analytics_set_data(&analytics_data.netdata_mirrored_hosts_unreachable, b);
+}
+
+void analytics_exporters(void)
+{
+    //when no exporters are available, an empty string will be sent
+    //decide if something else is more suitable (but propably not null)
+    BUFFER *bi = buffer_create(1000);
+    analytics_exporting_connectors(bi);
+    analytics_set_data_str(&analytics_data.netdata_exporting_connectors, (char *)buffer_tostring(bi));
+    buffer_free(bi);
+}
+
+int collector_counter_callb(void *entry, void *data)
+{
+    struct array_printer *ap = (struct array_printer *)data;
+    struct collector *col = (struct collector *)entry;
+
+    BUFFER *bt = ap->both;
+
+    if (likely(ap->c)) {
+        buffer_strcat(bt, ",");
+    }
+
+    buffer_strcat(bt, "{");
+    buffer_strcat(bt, " \"plugin\": \"");
+    buffer_strcat(bt, col->plugin);
+    buffer_strcat(bt, "\", \"module\":\"");
+    buffer_strcat(bt, col->module);
+    buffer_strcat(bt, "\" }");
+
+    (ap->c)++;
+
+    return 0;
+}
+
+/*
+ * Create a JSON array of available collectors, same as in api/v1/info
+ */
+void analytics_collectors(void)
+{
+    RRDSET *st;
+    DICTIONARY *dict = dictionary_create(DICTIONARY_FLAG_SINGLE_THREADED);
+    char name[500];
+    BUFFER *bt = buffer_create(1000);
+
+    rrdset_foreach_read(st, localhost)
+    {
+        if (rrdset_is_available_for_viewers(st)) {
+            struct collector col = { .plugin = st->plugin_name ? st->plugin_name : "",
+                                     .module = st->module_name ? st->module_name : "" };
+            snprintfz(name, 499, "%s:%s", col.plugin, col.module);
+            dictionary_set(dict, name, &col, sizeof(struct collector));
+        }
+    }
+
+    struct array_printer ap;
+    ap.c = 0;
+    ap.both = bt;
+
+    dictionary_get_all(dict, collector_counter_callb, &ap);
+    dictionary_destroy(dict);
+
+    analytics_set_data(&analytics_data.netdata_collectors, (char *)buffer_tostring(ap.both));
+
+    {
+        char b[7];
+        snprintfz(b, 6, "%d", ap.c);
+        analytics_set_data(&analytics_data.netdata_collectors_count, b);
+    }
+
+    buffer_free(bt);
+}
+
+/*
+ * Run alarm-notify.sh script using the dump_methods parameter
+ * SEND_CUSTOM is always available
+ */
+void analytics_alarms_notifications(void)
+{
+    char *script;
+    script = mallocz(
+        sizeof(char) * (strlen(netdata_configured_primary_plugins_dir) + strlen("alarm-notify.sh dump_methods") + 2));
+    sprintf(script, "%s/%s", netdata_configured_primary_plugins_dir, "alarm-notify.sh");
+    if (unlikely(access(script, R_OK) != 0)) {
+        info("Alarm notify script %s not found.", script);
+        freez(script);
+        return;
+    }
+
+    strcat(script, " dump_methods");
+
+    pid_t command_pid;
+
+    debug(D_ANALYTICS, "Executing %s", script);
+
+    BUFFER *b = buffer_create(1000);
+    int cnt = 0;
+    FILE *fp = mypopen(script, &command_pid);
+    if (fp) {
+        char line[200 + 1];
+
+        while (fgets(line, 200, fp) != NULL) {
+            char *end = line;
+            while (*end && *end != '\n')
+                end++;
+            *end = '\0';
+
+            if (likely(cnt))
+                buffer_strcat(b, "|");
+
+            buffer_strcat(b, line);
+
+            cnt++;
+        }
+        mypclose(fp, command_pid);
+    }
+    freez(script);
+
+    analytics_set_data_str(&analytics_data.netdata_notification_methods, (char *)buffer_tostring(b));
+
+    buffer_free(b);
+}
+
+void analytics_charts(void)
+{
+    RRDSET *st;
+    int c = 0;
+    rrdset_foreach_read(st, localhost)
+    {
+        if (rrdset_is_available_for_viewers(st)) {
+            c++;
+        }
+    }
+    {
+        char b[7];
+        snprintfz(b, 6, "%d", c);
+        analytics_set_data(&analytics_data.netdata_charts_count, b);
+    }
+}
+
+void analytics_metrics(void)
+{
+    RRDSET *st;
+    long int dimensions = 0;
+    RRDDIM *rd;
+    rrdset_foreach_read(st, localhost)
+    {
+        rrdset_rdlock(st);
+        rrddim_foreach_read(rd, st)
+        {
+            if (rrddim_flag_check(rd, RRDDIM_FLAG_HIDDEN) || rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE))
+                continue;
+            dimensions++;
+        }
+        rrdset_unlock(st);
+    }
+    {
+        char b[7];
+        snprintfz(b, 6, "%ld", dimensions);
+        analytics_set_data(&analytics_data.netdata_metrics_count, b);
+    }
+}
+
+void analytics_alarms(void)
+{
+    int alarm_warn = 0, alarm_crit = 0, alarm_normal = 0;
+    char b[10];
+    RRDCALC *rc;
+    for (rc = localhost->alarms; rc; rc = rc->next) {
+        if (unlikely(!rc->rrdset || !rc->rrdset->last_collected_time.tv_sec))
+            continue;
+
+        switch (rc->status) {
+            case RRDCALC_STATUS_WARNING:
+                alarm_warn++;
+                break;
+            case RRDCALC_STATUS_CRITICAL:
+                alarm_crit++;
+                break;
+            default:
+                alarm_normal++;
+        }
+    }
+
+    snprintfz(b, 9, "%d", alarm_normal);
+    analytics_set_data(&analytics_data.netdata_alarms_normal, b);
+    snprintfz(b, 9, "%d", alarm_warn);
+    analytics_set_data(&analytics_data.netdata_alarms_warning, b);
+    snprintfz(b, 9, "%d", alarm_crit);
+    analytics_set_data(&analytics_data.netdata_alarms_critical, b);
+}
+
+/*
+ * Misc attributes to get (run from meta)
+ */
+void analytics_misc(void)
+{
+#ifdef ENABLE_ACLK
+    analytics_set_data(&analytics_data.netdata_host_cloud_available, "true");
+#ifdef ACLK_NG
+    analytics_set_data_str(&analytics_data.netdata_host_aclk_implementation, "Next Generation");
+#else
+    analytics_set_data_str(&analytics_data.netdata_host_aclk_implementation, "legacy");
+#endif
+#else
+    analytics_set_data(&analytics_data.netdata_host_cloud_available, "false");
+#endif
+
+#ifdef ENABLE_ACLK
+    if (aclk_connected)
+        analytics_set_data(&analytics_data.netdata_host_aclk_available, "true");
+    else
+#endif
+        analytics_set_data(&analytics_data.netdata_host_aclk_available, "false");
+}
+
+/*
+ * Get the meta data, called from the thread once after the original delay
+ * These are values that won't change between agent restarts, and therefore
+ * don't try to read them on each META event send
+ */
+void analytics_gather_immutable_meta_data(void)
+{
+    analytics_misc();
+    analytics_exporters();
+}
+
+/*
+ * Get the meta data, called from the thread on every heartbeat, and right before the EXIT event
+ * These are values that can change between agent restarts, and therefore
+ * try to read them on each META event send
+ */
+void analytics_gather_mutable_meta_data(void)
+{
+    rrdhost_rdlock(localhost);
+
+    analytics_collectors();
+    analytics_alarms();
+    analytics_charts();
+    analytics_metrics();
+
+    rrdhost_unlock(localhost);
+
+    analytics_mirrored_hosts();
+    analytics_alarms_notifications();
+
+    analytics_set_data(
+        &analytics_data.netdata_config_is_parent, (localhost->next || configured_as_parent()) ? "true" : "false");
+
+    char *claim_id = is_agent_claimed();
+    analytics_set_data(&analytics_data.netdata_host_agent_claimed, claim_id ? "true" : "false");
+    freez(claim_id);
+
+    {
+        char b[7];
+        snprintfz(b, 6, "%d", analytics_data.prometheus_hits);
+        analytics_set_data(&analytics_data.netdata_allmetrics_prometheus_used, b);
+
+        snprintfz(b, 6, "%d", analytics_data.shell_hits);
+        analytics_set_data(&analytics_data.netdata_allmetrics_shell_used, b);
+
+        snprintfz(b, 6, "%d", analytics_data.json_hits);
+        analytics_set_data(&analytics_data.netdata_allmetrics_json_used, b);
+
+        snprintfz(b, 6, "%d", analytics_data.dashboard_hits);
+        analytics_set_data(&analytics_data.netdata_dashboard_used, b);
+
+        snprintfz(b, 6, "%zu", rrd_hosts_available);
+        analytics_set_data(&analytics_data.netdata_config_hosts_available, b);
+    }
+}
+
+void analytics_main_cleanup(void *ptr)
+{
+    struct netdata_static_thread *static_thread = (struct netdata_static_thread *)ptr;
+    static_thread->enabled = NETDATA_MAIN_THREAD_EXITING;
+
+    debug(D_ANALYTICS, "Cleaning up...");
+
+    static_thread->enabled = NETDATA_MAIN_THREAD_EXITED;
+}
+
+/*
+ * The analytics thread. Sleep for ANALYTICS_INIT_SLEEP_SEC,
+ * gather the data, and then go to a loop where every ANALYTICS_HEARTBEAT
+ * it will send a new META event after gathering data that could be changed
+ * while the agent is running
+ */
+void *analytics_main(void *ptr)
+{
+    netdata_thread_cleanup_push(analytics_main_cleanup, ptr);
+    unsigned int sec = 0;
+    heartbeat_t hb;
+    heartbeat_init(&hb);
+    usec_t step_ut = USEC_PER_SEC;
+
+    debug(D_ANALYTICS, "Analytics thread starts");
+
+    //first delay after agent start
+    while (!netdata_exit && likely(sec <= ANALYTICS_INIT_SLEEP_SEC)) {
+        heartbeat_next(&hb, step_ut);
+        sec++;
+    }
+
+    if (unlikely(netdata_exit))
+        goto cleanup;
+
+    analytics_gather_immutable_meta_data();
+    analytics_gather_mutable_meta_data();
+    send_statistics("META", "-", "-");
+    analytics_log_data();
+
+    sec = 0;
+    while (1) {
+        heartbeat_next(&hb, step_ut * 2);
+        sec += 2;
+
+        if (unlikely(netdata_exit))
+            break;
+
+        if (likely(sec < ANALYTICS_HEARTBEAT))
+            continue;
+
+        analytics_gather_mutable_meta_data();
+        send_statistics("META", "-", "-");
+        analytics_log_data();
+        sec = 0;
+    }
+
+cleanup:
+    netdata_thread_cleanup_pop(1);
+    return NULL;
+}
+
+static const char *verify_required_directory(const char *dir)
+{
+    if (chdir(dir) == -1)
+        fatal("Cannot change directory to '%s'", dir);
+
+    DIR *d = opendir(dir);
+    if (!d)
+        fatal("Cannot examine the contents of directory '%s'", dir);
+    closedir(d);
+
+    return dir;
+}
+
+/*
+ * This is called after the rrdinit
+ * These values will be sent on the START event
+ */
+void set_late_global_environment()
+{
+    analytics_set_data(&analytics_data.netdata_config_stream_enabled, default_rrdpush_enabled ? "true" : "false");
+    analytics_set_data_str(&analytics_data.netdata_config_memory_mode, (char *)rrd_memory_mode_name(default_rrd_memory_mode));
+    analytics_set_data(&analytics_data.netdata_config_exporting_enabled, appconfig_get_boolean(&exporting_config, CONFIG_SECTION_EXPORTING, "enabled", CONFIG_BOOLEAN_NO) ? "true" : "false");
+
+#ifdef DISABLE_CLOUD
+    analytics_set_data(&analytics_data.netdata_host_cloud_enabled, "false");
+#else
+    analytics_set_data(
+        &analytics_data.netdata_host_cloud_enabled,
+        appconfig_get_boolean(&cloud_config, CONFIG_SECTION_GLOBAL, "enabled", CONFIG_BOOLEAN_YES) ? "true" : "false");
+#endif
+
+#ifdef ENABLE_DBENGINE
+    {
+        char b[16];
+        snprintfz(b, 15, "%d", default_rrdeng_page_cache_mb);
+        analytics_set_data(&analytics_data.netdata_config_page_cache_size, b);
+
+        snprintfz(b, 15, "%d", default_multidb_disk_quota_mb);
+        analytics_set_data(&analytics_data.netdata_config_multidb_disk_quota, b);
+    }
+#endif
+
+#ifdef ENABLE_HTTPS
+    analytics_set_data(&analytics_data.netdata_config_https_enabled, "true");
+#else
+    analytics_set_data(&analytics_data.netdata_config_https_enabled, "false");
+#endif
+
+    if (web_server_mode == WEB_SERVER_MODE_NONE)
+        analytics_set_data(&analytics_data.netdata_config_web_enabled, "false");
+    else
+        analytics_set_data(&analytics_data.netdata_config_web_enabled, "true");
+
+    analytics_set_data_str(&analytics_data.netdata_config_release_channel, (char *)get_release_channel());
+
+    {
+        BUFFER *bi = buffer_create(1000);
+        analytics_build_info(bi);
+        analytics_set_data_str(&analytics_data.netdata_buildinfo, (char *)buffer_tostring(bi));
+        buffer_free(bi);
+    }
+}
+
+static void get_system_timezone(void)
+{
+    // avoid flood calls to stat(/etc/localtime)
+    // http://stackoverflow.com/questions/4554271/how-to-avoid-excessive-stat-etc-localtime-calls-in-strftime-on-linux
+    const char *tz = getenv("TZ");
+    if (!tz || !*tz)
+        setenv("TZ", config_get(CONFIG_SECTION_GLOBAL, "TZ environment variable", ":/etc/localtime"), 0);
+
+    char buffer[FILENAME_MAX + 1] = "";
+    const char *timezone = NULL;
+    ssize_t ret;
+
+    // use the TZ variable
+    if (tz && *tz && *tz != ':') {
+        timezone = tz;
+        info("TIMEZONE: using TZ variable '%s'", timezone);
+    }
+
+    // use the contents of /etc/timezone
+    if (!timezone && !read_file("/etc/timezone", buffer, FILENAME_MAX)) {
+        timezone = buffer;
+        info("TIMEZONE: using the contents of /etc/timezone: '%s'", timezone);
+    }
+
+    // read the link /etc/localtime
+    if (!timezone) {
+        ret = readlink("/etc/localtime", buffer, FILENAME_MAX);
+
+        if (ret > 0) {
+            buffer[ret] = '\0';
+
+            char *cmp = "/usr/share/zoneinfo/";
+            size_t cmp_len = strlen(cmp);
+
+            char *s = strstr(buffer, cmp);
+            if (s && s[cmp_len]) {
+                timezone = &s[cmp_len];
+                info("TIMEZONE: using the link of /etc/localtime: '%s'", timezone);
+            }
+        } else
+            buffer[0] = '\0';
+    }
+
+    // find the timezone from strftime()
+    if (!timezone) {
+        time_t t;
+        struct tm *tmp, tmbuf;
+
+        t = now_realtime_sec();
+        tmp = localtime_r(&t, &tmbuf);
+
+        if (tmp != NULL) {
+            if (strftime(buffer, FILENAME_MAX, "%Z", tmp) == 0)
+                buffer[0] = '\0';
+            else {
+                buffer[FILENAME_MAX] = '\0';
+                timezone = buffer;
+                info("TIMEZONE: using strftime(): '%s'", timezone);
+            }
+        }
+    }
+
+    if (timezone && *timezone) {
+        // make sure it does not have illegal characters
+        // info("TIMEZONE: fixing '%s'", timezone);
+
+        size_t len = strlen(timezone);
+        char tmp[len + 1];
+        char *d = tmp;
+        *d = '\0';
+
+        while (*timezone) {
+            if (isalnum(*timezone) || *timezone == '_' || *timezone == '/')
+                *d++ = *timezone++;
+            else
+                timezone++;
+        }
+        *d = '\0';
+        strncpyz(buffer, tmp, len);
+        timezone = buffer;
+        info("TIMEZONE: fixed as '%s'", timezone);
+    }
+
+    if (!timezone || !*timezone)
+        timezone = "unknown";
+
+    netdata_configured_timezone = config_get(CONFIG_SECTION_GLOBAL, "timezone", timezone);
+}
+
+void set_global_environment()
+{
+    {
+        char b[16];
+        snprintfz(b, 15, "%d", default_rrd_update_every);
+        setenv("NETDATA_UPDATE_EVERY", b, 1);
+    }
+
+    setenv("NETDATA_VERSION", program_version, 1);
+    setenv("NETDATA_HOSTNAME", netdata_configured_hostname, 1);
+    setenv("NETDATA_CONFIG_DIR", verify_required_directory(netdata_configured_user_config_dir), 1);
+    setenv("NETDATA_USER_CONFIG_DIR", verify_required_directory(netdata_configured_user_config_dir), 1);
+    setenv("NETDATA_STOCK_CONFIG_DIR", verify_required_directory(netdata_configured_stock_config_dir), 1);
+    setenv("NETDATA_PLUGINS_DIR", verify_required_directory(netdata_configured_primary_plugins_dir), 1);
+    setenv("NETDATA_WEB_DIR", verify_required_directory(netdata_configured_web_dir), 1);
+    setenv("NETDATA_CACHE_DIR", verify_required_directory(netdata_configured_cache_dir), 1);
+    setenv("NETDATA_LIB_DIR", verify_required_directory(netdata_configured_varlib_dir), 1);
+    setenv("NETDATA_LOCK_DIR", netdata_configured_lock_dir, 1);
+    setenv("NETDATA_LOG_DIR", verify_required_directory(netdata_configured_log_dir), 1);
+    setenv("HOME", verify_required_directory(netdata_configured_home_dir), 1);
+    setenv("NETDATA_HOST_PREFIX", netdata_configured_host_prefix, 1);
+
+    analytics_data.data_length = 0;
+    analytics_set_data(&analytics_data.netdata_config_stream_enabled, "null");
+    analytics_set_data(&analytics_data.netdata_config_memory_mode, "null");
+    analytics_set_data(&analytics_data.netdata_config_exporting_enabled, "null");
+    analytics_set_data(&analytics_data.netdata_exporting_connectors, "null");
+    analytics_set_data(&analytics_data.netdata_allmetrics_prometheus_used, "null");
+    analytics_set_data(&analytics_data.netdata_allmetrics_shell_used, "null");
+    analytics_set_data(&analytics_data.netdata_allmetrics_json_used, "null");
+    analytics_set_data(&analytics_data.netdata_dashboard_used, "null");
+    analytics_set_data(&analytics_data.netdata_collectors, "null");
+    analytics_set_data(&analytics_data.netdata_collectors_count, "null");
+    analytics_set_data(&analytics_data.netdata_buildinfo, "null");
+    analytics_set_data(&analytics_data.netdata_config_page_cache_size, "null");
+    analytics_set_data(&analytics_data.netdata_config_multidb_disk_quota, "null");
+    analytics_set_data(&analytics_data.netdata_config_https_enabled, "null");
+    analytics_set_data(&analytics_data.netdata_config_web_enabled, "null");
+    analytics_set_data(&analytics_data.netdata_config_release_channel, "null");
+    analytics_set_data(&analytics_data.netdata_mirrored_host_count, "null");
+    analytics_set_data(&analytics_data.netdata_mirrored_hosts_reachable, "null");
+    analytics_set_data(&analytics_data.netdata_mirrored_hosts_unreachable, "null");
+    analytics_set_data(&analytics_data.netdata_notification_methods, "null");
+    analytics_set_data(&analytics_data.netdata_alarms_normal, "null");
+    analytics_set_data(&analytics_data.netdata_alarms_warning, "null");
+    analytics_set_data(&analytics_data.netdata_alarms_critical, "null");
+    analytics_set_data(&analytics_data.netdata_charts_count, "null");
+    analytics_set_data(&analytics_data.netdata_metrics_count, "null");
+    analytics_set_data(&analytics_data.netdata_config_is_parent, "null");
+    analytics_set_data(&analytics_data.netdata_config_hosts_available, "null");
+    analytics_set_data(&analytics_data.netdata_host_cloud_available, "null");
+    analytics_set_data(&analytics_data.netdata_host_aclk_implementation, "null");
+    analytics_set_data(&analytics_data.netdata_host_aclk_available, "null");
+    analytics_set_data(&analytics_data.netdata_host_agent_claimed, "null");
+    analytics_set_data(&analytics_data.netdata_host_cloud_enabled, "null");
+
+    analytics_data.prometheus_hits = 0;
+    analytics_data.shell_hits = 0;
+    analytics_data.json_hits = 0;
+    analytics_data.dashboard_hits = 0;
+
+    char *default_port = appconfig_get(&netdata_config, CONFIG_SECTION_WEB, "default port", NULL);
+    int clean = 0;
+    if (!default_port) {
+        default_port = strdupz("19999");
+        clean = 1;
+    }
+
+    setenv("NETDATA_LISTEN_PORT", default_port, 1);
+    if (clean)
+        freez(default_port);
+
+    get_system_timezone();
+
+    // set the path we need
+    char path[1024 + 1], *p = getenv("PATH");
+    if (!p)
+        p = "/bin:/usr/bin";
+    snprintfz(path, 1024, "%s:%s", p, "/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin");
+    setenv("PATH", config_get(CONFIG_SECTION_PLUGINS, "PATH environment variable", path), 1);
+
+    // python options
+    p = getenv("PYTHONPATH");
+    if (!p)
+        p = "";
+    setenv("PYTHONPATH", config_get(CONFIG_SECTION_PLUGINS, "PYTHONPATH environment variable", p), 1);
+
+    // disable buffering for python plugins
+    setenv("PYTHONUNBUFFERED", "1", 1);
+
+    // switch to standard locale for plugins
+    setenv("LC_ALL", "C", 1);
+}
+
+void send_statistics(const char *action, const char *action_result, const char *action_data)
+{
+    static char *as_script;
+
+    if (netdata_anonymous_statistics_enabled == -1) {
+        char *optout_file = mallocz(
+            sizeof(char) *
+            (strlen(netdata_configured_user_config_dir) + strlen(".opt-out-from-anonymous-statistics") + 2));
+        sprintf(optout_file, "%s/%s", netdata_configured_user_config_dir, ".opt-out-from-anonymous-statistics");
+        if (likely(access(optout_file, R_OK) != 0)) {
+            as_script = mallocz(
+                sizeof(char) *
+                (strlen(netdata_configured_primary_plugins_dir) + strlen("anonymous-statistics.sh") + 2));
+            sprintf(as_script, "%s/%s", netdata_configured_primary_plugins_dir, "anonymous-statistics.sh");
+            if (unlikely(access(as_script, R_OK) != 0)) {
+                netdata_anonymous_statistics_enabled = 0;
+                info("Anonymous statistics script %s not found.", as_script);
+                freez(as_script);
+            } else {
+                netdata_anonymous_statistics_enabled = 1;
+            }
+        } else {
+            netdata_anonymous_statistics_enabled = 0;
+            as_script = NULL;
+        }
+        freez(optout_file);
+    }
+    if (!netdata_anonymous_statistics_enabled)
+        return;
+    if (!action)
+        return;
+    if (!action_result)
+        action_result = "";
+    if (!action_data)
+        action_data = "";
+    char *command_to_run = mallocz(
+        sizeof(char) * (strlen(action) + strlen(action_result) + strlen(action_data) + strlen(as_script) +
+                        analytics_data.data_length + (ANALYTICS_NO_OF_ITEMS * 3) + 15));
+    pid_t command_pid;
+
+    sprintf(
+        command_to_run,
+        "%s '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' '%s' ",
+        as_script,
+        action,
+        action_result,
+        action_data,
+        analytics_data.netdata_config_stream_enabled,
+        analytics_data.netdata_config_memory_mode,
+        analytics_data.netdata_config_exporting_enabled,
+        analytics_data.netdata_exporting_connectors,
+        analytics_data.netdata_allmetrics_prometheus_used,
+        analytics_data.netdata_allmetrics_shell_used,
+        analytics_data.netdata_allmetrics_json_used,
+        analytics_data.netdata_dashboard_used,
+        analytics_data.netdata_collectors,
+        analytics_data.netdata_collectors_count,
+        analytics_data.netdata_buildinfo,
+        analytics_data.netdata_config_page_cache_size,
+        analytics_data.netdata_config_multidb_disk_quota,
+        analytics_data.netdata_config_https_enabled,
+        analytics_data.netdata_config_web_enabled,
+        analytics_data.netdata_config_release_channel,
+        analytics_data.netdata_mirrored_host_count,
+        analytics_data.netdata_mirrored_hosts_reachable,
+        analytics_data.netdata_mirrored_hosts_unreachable,
+        analytics_data.netdata_notification_methods,
+        analytics_data.netdata_alarms_normal,
+        analytics_data.netdata_alarms_warning,
+        analytics_data.netdata_alarms_critical,
+        analytics_data.netdata_charts_count,
+        analytics_data.netdata_metrics_count,
+        analytics_data.netdata_config_is_parent,
+        analytics_data.netdata_config_hosts_available,
+        analytics_data.netdata_host_cloud_available,
+        analytics_data.netdata_host_aclk_available,
+        analytics_data.netdata_host_aclk_implementation,
+        analytics_data.netdata_host_agent_claimed,
+        analytics_data.netdata_host_cloud_enabled);
+
+    info("%s '%s' '%s' '%s'", as_script, action, action_result, action_data);
+
+    FILE *fp = mypopen(command_to_run, &command_pid);
+    if (fp) {
+        char buffer[100 + 1];
+        while (fgets(buffer, 100, fp) != NULL)
+            ;
+        mypclose(fp, command_pid);
+    }
+    freez(command_to_run);
+}