Merging upstream version 1.46.3.

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

6 files changed, 0 insertions, 785 deletions

diff --git a/exporting/opentsdb/Makefile.am b/exporting/opentsdb/Makefile.am
deleted file mode 100644
index 161784b8..00000000
--- a/exporting/opentsdb/Makefile.am
+++ /dev/null
@@ -1,8 +0,0 @@
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-AUTOMAKE_OPTIONS = subdir-objects
-MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
-
-dist_noinst_DATA = \
-    README.md \
-    $(NULL)
diff --git a/exporting/opentsdb/README.md b/exporting/opentsdb/README.md
deleted file mode 120000
index fef53460..00000000
--- a/exporting/opentsdb/README.md
+++ /dev/null
@@ -1 +0,0 @@
-integrations/opentsdb.md
\ No newline at end of file
diff --git a/exporting/opentsdb/integrations/opentsdb.md b/exporting/opentsdb/integrations/opentsdb.md
deleted file mode 100644
index 1c3087e0..00000000
--- a/exporting/opentsdb/integrations/opentsdb.md
+++ /dev/null
@@ -1,175 +0,0 @@
-<!--startmeta
-custom_edit_url: "https://github.com/netdata/netdata/edit/master/exporting/opentsdb/README.md"
-meta_yaml: "https://github.com/netdata/netdata/edit/master/exporting/opentsdb/metadata.yaml"
-sidebar_label: "OpenTSDB"
-learn_status: "Published"
-learn_rel_path: "Exporting"
-message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE EXPORTER'S metadata.yaml FILE"
-endmeta-->
-
-# OpenTSDB
-
-
-<img src="https://netdata.cloud/img/opentsdb.png" width="150"/>
-
-
-Use the OpenTSDB connector for the exporting engine to archive your Netdata metrics to OpenTSDB databases for long-term storage,
-further analysis, or correlation with data from other sources.
-
-
-
-<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" />
-
-## Setup
-
-### Prerequisites
-
-#### 
-
-- OpenTSDB and Netdata, installed, configured and operational.
-
-
-
-### Configuration
-
-#### File
-
-The configuration file name for this integration is `exporting.conf`.
-
-
-You can edit the configuration file using the `edit-config` script from the
-Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/configure/nodes.md#the-netdata-config-directory).
-
-```bash
-cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
-sudo ./edit-config exporting.conf
-```
-#### Options
-
-The following options can be defined for this exporter.
-
-<details><summary>Config options</summary>
-
-| Name | Description | Default | Required |
-|:----|:-----------|:-------|:--------:|
-| enabled | Enables or disables an exporting connector instance (yes/no). | no | yes |
-| destination | Accepts a space separated list of hostnames, IPs (IPv4 and IPv6) and ports to connect to. Netdata will use the first available to send the metrics. | no | yes |
-| username | Username for HTTP authentication | my_username | no |
-| password | Password for HTTP authentication | my_password | no |
-| data source | Selects the kind of data that will be sent to the external database. (as collected/average/sum) |  | no |
-| hostname | The hostname to be used for sending data to the external database server. | [global].hostname | no |
-| prefix | The prefix to add to all metrics. | Netdata | no |
-| update every | Frequency of sending sending data to the external database, in seconds. | 10 | no |
-| buffer on failures | The number of iterations (`update every` seconds) to buffer data, when the external database server is not available. | 10 | no |
-| timeout ms | The timeout in milliseconds to wait for the external database server to process the data. | 2 * update_every * 1000 | no |
-| send hosts matching | Hosts filter. Determines which hosts will be sent to OpenTSDB. The syntax is [simple patterns](https://github.com/netdata/netdata/tree/master/libnetdata/simple_pattern#simple-patterns). | localhost * | no |
-| send charts matching | One or more space separated patterns (use * as wildcard) checked against both chart id and chart name. | * | no |
-| send names instead of ids | Controls the metric names Netdata should send to the external database (yes/no). |  | no |
-| send configured labels | Controls if host labels defined in the `[host labels]` section in `netdata.conf` should be sent to the external database (yes/no). |  | no |
-| send automatic labels | Controls if automatically created labels, like `_os_name` or `_architecture` should be sent to the external database (yes/no). |  | no |
-
-##### destination
-
-The format of each item in this list, is: [PROTOCOL:]IP[:PORT].
-- PROTOCOL can be udp or tcp. tcp is the default and only supported by the current exporting engine.
-- IP can be XX.XX.XX.XX (IPv4), or [XX:XX...XX:XX] (IPv6). For IPv6 you can to enclose the IP in [] to separate it from the port.
-- PORT can be a number of a service name. If omitted, the default port for the exporting connector will be used (opentsdb = 4242).
-
-Example IPv4:
-  ```yaml
-  destination = 10.11.14.2:4242 10.11.14.3:4242 10.11.14.4:4242
-  ```
-Example IPv6 and IPv4 together:
-```yaml
-destination = [ffff:...:0001]:2003 10.11.12.1:2003
-```
-When multiple servers are defined, Netdata will try the next one when the previous one fails.
-
-
-##### update every
-
-Netdata will add some randomness to this number, to prevent stressing the external server when many Netdata servers
-send data to the same database. This randomness does not affect the quality of the data, only the time they are sent.
-
-
-##### buffer on failures
-
-If the server fails to receive the data after that many failures, data loss on the connector instance is expected (Netdata will also log it).
-
-
-##### send hosts matching
-
-Includes one or more space separated patterns, using * as wildcard (any number of times within each pattern).
-The patterns are checked against the hostname (the localhost is always checked as localhost), allowing us to
-filter which hosts will be sent to the external database when this Netdata is a central Netdata aggregating multiple hosts.
-
-A pattern starting with `!` gives a negative match. So to match all hosts named `*db*` except hosts containing `*child*`,
-use `!*child* *db*` (so, the order is important: the first pattern matching the hostname will be used - positive or negative).
-
-
-##### send charts matching
-
-A pattern starting with ! gives a negative match. So to match all charts named apps.* except charts ending in *reads,
-use !*reads apps.* (so, the order is important: the first pattern matching the chart id or the chart name will be used,
-positive or negative). There is also a URL parameter filter that can be used while querying allmetrics. The URL parameter
-has a higher priority than the configuration option.
-
-
-##### send names instead of ids
-
-Netdata supports names and IDs for charts and dimensions. Usually IDs are unique identifiers as read by the system and names
-are human friendly labels (also unique). Most charts and metrics have the same ID and name, but in several cases they are
-different : disks with device-mapper, interrupts, QoS classes, statsd synthetic charts, etc.
-
-
-</details>
-
-#### Examples
-
-##### Minimal configuration
-
-Add `:http` or `:https` modifiers to the connector type if you need to use other than a plaintext protocol.
-For example: `opentsdb:http:my_opentsdb_instance`, `opentsdb:https:my_opentsdb_instance`.
-
-
-```yaml
-[opentsdb:my_opentsdb_instance]
-  enabled = yes
-  destination = localhost:4242
-
-```
-##### HTTP authentication
-
-
-
-```yaml
-[opentsdb:my_opentsdb_instance]
-    enabled = yes
-    destination = localhost:4242
-    username = my_username
-    password = my_password
-
-```
-##### Using `send hosts matching`
-
-
-
-```yaml
-[opentsdb:my_opentsdb_instance]
-    enabled = yes
-    destination = localhost:4242
-    send hosts matching = localhost *
-
-```
-##### Using `send charts matching`
-
-
-
-```yaml
-[opentsdb:my_opentsdb_instance]
-    enabled = yes
-    destination = localhost:4242
-    send charts matching = *
-
-```
-
diff --git a/exporting/opentsdb/metadata.yaml b/exporting/opentsdb/metadata.yaml
deleted file mode 100644
index 505c8c59..00000000
--- a/exporting/opentsdb/metadata.yaml
+++ /dev/null
@@ -1,176 +0,0 @@
-# yamllint disable rule:line-length
----
-id: 'export-opentsdb'
-meta:
-  name: 'OpenTSDB'
-  link: 'https://github.com/OpenTSDB/opentsdb'
-  categories:
-    - export
-  icon_filename: 'opentsdb.png'
-keywords:
-  - exporter
-  - OpenTSDB
-  - scalable time series
-overview:
-  exporter_description: |
-    Use the OpenTSDB connector for the exporting engine to archive your Netdata metrics to OpenTSDB databases for long-term storage,
-    further analysis, or correlation with data from other sources.
-  exporter_limitations: ''
-setup:
-  prerequisites:
-    list:
-      - title: ''
-        description: |
-          - OpenTSDB and Netdata, installed, configured and operational.
-  configuration:
-    file:
-      name: 'exporting.conf'
-    options:
-      description: 'The following options can be defined for this exporter.'
-      folding:
-        title: 'Config options'
-        enabled: true
-      list:
-        - name: 'enabled'
-          default_value: 'no'
-          description: 'Enables or disables an exporting connector instance (yes|no).'
-          required: true
-        - name: 'destination'
-          default_value: 'no'
-          description: 'Accepts a space separated list of hostnames, IPs (IPv4 and IPv6) and ports to connect to. Netdata will use the first available to send the metrics.'
-          required: true
-          detailed_description: |
-            The format of each item in this list, is: [PROTOCOL:]IP[:PORT].
-            - PROTOCOL can be udp or tcp. tcp is the default and only supported by the current exporting engine.
-            - IP can be XX.XX.XX.XX (IPv4), or [XX:XX...XX:XX] (IPv6). For IPv6 you can to enclose the IP in [] to separate it from the port.
-            - PORT can be a number of a service name. If omitted, the default port for the exporting connector will be used (opentsdb = 4242).
-
-            Example IPv4:
-              ```yaml
-              destination = 10.11.14.2:4242 10.11.14.3:4242 10.11.14.4:4242
-              ```
-            Example IPv6 and IPv4 together:
-            ```yaml
-            destination = [ffff:...:0001]:2003 10.11.12.1:2003
-            ```
-            When multiple servers are defined, Netdata will try the next one when the previous one fails.
-        - name: 'username'
-          default_value: 'my_username'
-          description: 'Username for HTTP authentication'
-          required: false
-        - name: 'password'
-          default_value: 'my_password'
-          description: 'Password for HTTP authentication'
-          required: false
-        - name: 'data source'
-          default_value: ''
-          description: 'Selects the kind of data that will be sent to the external database. (as collected|average|sum)'
-          required: false
-        - name: 'hostname'
-          default_value: '[global].hostname'
-          description: 'The hostname to be used for sending data to the external database server.'
-          required: false
-        - name: 'prefix'
-          default_value: 'Netdata'
-          description: 'The prefix to add to all metrics.'
-          required: false
-        - name: 'update every'
-          default_value: '10'
-          description: |
-            Frequency of sending sending data to the external database, in seconds.
-          required: false
-          detailed_description: |
-            Netdata will add some randomness to this number, to prevent stressing the external server when many Netdata servers
-            send data to the same database. This randomness does not affect the quality of the data, only the time they are sent.
-        - name: 'buffer on failures'
-          default_value: '10'
-          description: |
-            The number of iterations (`update every` seconds) to buffer data, when the external database server is not available.
-          required: false
-          detailed_description: |
-            If the server fails to receive the data after that many failures, data loss on the connector instance is expected (Netdata will also log it).
-        - name: 'timeout ms'
-          default_value: '2 * update_every * 1000'
-          description: 'The timeout in milliseconds to wait for the external database server to process the data.'
-          required: false
-        - name: 'send hosts matching'
-          default_value: 'localhost *'
-          description: |
-            Hosts filter. Determines which hosts will be sent to OpenTSDB. The syntax is [simple patterns](https://github.com/netdata/netdata/tree/master/libnetdata/simple_pattern#simple-patterns).
-          required: false
-          detailed_description: |
-            Includes one or more space separated patterns, using * as wildcard (any number of times within each pattern).
-            The patterns are checked against the hostname (the localhost is always checked as localhost), allowing us to
-            filter which hosts will be sent to the external database when this Netdata is a central Netdata aggregating multiple hosts.
-
-            A pattern starting with `!` gives a negative match. So to match all hosts named `*db*` except hosts containing `*child*`,
-            use `!*child* *db*` (so, the order is important: the first pattern matching the hostname will be used - positive or negative).
-        - name: 'send charts matching'
-          default_value: '*'
-          description: |
-            One or more space separated patterns (use * as wildcard) checked against both chart id and chart name.
-          required: false
-          detailed_description: |
-            A pattern starting with ! gives a negative match. So to match all charts named apps.* except charts ending in *reads,
-            use !*reads apps.* (so, the order is important: the first pattern matching the chart id or the chart name will be used,
-            positive or negative). There is also a URL parameter filter that can be used while querying allmetrics. The URL parameter
-            has a higher priority than the configuration option.
-        - name: 'send names instead of ids'
-          default_value: ''
-          description: 'Controls the metric names Netdata should send to the external database (yes|no).'
-          required: false
-          detailed_description: |
-            Netdata supports names and IDs for charts and dimensions. Usually IDs are unique identifiers as read by the system and names
-            are human friendly labels (also unique). Most charts and metrics have the same ID and name, but in several cases they are
-            different : disks with device-mapper, interrupts, QoS classes, statsd synthetic charts, etc.
-        - name: 'send configured labels'
-          default_value: ''
-          description: 'Controls if host labels defined in the `[host labels]` section in `netdata.conf` should be sent to the external database (yes|no).'
-          required: false
-        - name: 'send automatic labels'
-          default_value: ''
-          description: 'Controls if automatically created labels, like `_os_name` or `_architecture` should be sent to the external database (yes|no).'
-          required: false
-    examples:
-      folding:
-        enabled: true
-        title: ''
-      list:
-        - name: 'Minimal configuration'
-          folding:
-            enabled: false
-          description: |
-            Add `:http` or `:https` modifiers to the connector type if you need to use other than a plaintext protocol.
-            For example: `opentsdb:http:my_opentsdb_instance`, `opentsdb:https:my_opentsdb_instance`.
-          config: |
-            [opentsdb:my_opentsdb_instance]
-              enabled = yes
-              destination = localhost:4242
-        - name: 'HTTP authentication'
-          folding:
-            enabled: false
-          description: ''
-          config: |
-            [opentsdb:my_opentsdb_instance]
-                enabled = yes
-                destination = localhost:4242
-                username = my_username
-                password = my_password
-        - name: 'Using `send hosts matching`'
-          folding:
-            enabled: false
-          description: ''
-          config: |
-            [opentsdb:my_opentsdb_instance]
-                enabled = yes
-                destination = localhost:4242
-                send hosts matching = localhost *
-        - name: 'Using `send charts matching`'
-          folding:
-            enabled: false
-          description: ''
-          config: |
-            [opentsdb:my_opentsdb_instance]
-                enabled = yes
-                destination = localhost:4242
-                send charts matching = *
diff --git a/exporting/opentsdb/opentsdb.c b/exporting/opentsdb/opentsdb.c
deleted file mode 100644
index ffccb5b2..00000000
--- a/exporting/opentsdb/opentsdb.c
+++ /dev/null
@@ -1,399 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "opentsdb.h"
-#include "../json/json.h"
-
-/**
- * Initialize OpenTSDB telnet connector instance
- *
- * @param instance an instance data structure.
- * @return Returns 0 on success, 1 on failure.
- */
-int init_opentsdb_telnet_instance(struct instance *instance)
-{
-    instance->worker = simple_connector_worker;
-
-    struct simple_connector_config *connector_specific_config = callocz(1, sizeof(struct simple_connector_config));
-    instance->config.connector_specific_config = (void *)connector_specific_config;
-    connector_specific_config->default_port = 4242;
-
-    struct simple_connector_data *connector_specific_data = callocz(1, sizeof(struct simple_connector_data));
-    instance->connector_specific_data = connector_specific_data;
-
-#ifdef ENABLE_HTTPS
-    connector_specific_data->ssl = NETDATA_SSL_UNSET_CONNECTION;
-    if (instance->config.options & EXPORTING_OPTION_USE_TLS) {
-        netdata_ssl_initialize_ctx(NETDATA_SSL_EXPORTING_CTX);
-    }
-#endif
-
-    instance->start_batch_formatting = NULL;
-    instance->start_host_formatting = format_host_labels_opentsdb_telnet;
-    instance->start_chart_formatting = NULL;
-
-    if (EXPORTING_OPTIONS_DATA_SOURCE(instance->config.options) == EXPORTING_SOURCE_DATA_AS_COLLECTED)
-        instance->metric_formatting = format_dimension_collected_opentsdb_telnet;
-    else
-        instance->metric_formatting = format_dimension_stored_opentsdb_telnet;
-
-    instance->end_chart_formatting = NULL;
-    instance->variables_formatting = NULL;
-    instance->end_host_formatting = flush_host_labels;
-    instance->end_batch_formatting = simple_connector_end_batch;
-
-    instance->prepare_header = NULL;
-    instance->check_response = exporting_discard_response;
-
-    instance->buffer = (void *)buffer_create(0, &netdata_buffers_statistics.buffers_exporters);
-    if (!instance->buffer) {
-        netdata_log_error("EXPORTING: cannot create buffer for opentsdb telnet exporting connector instance %s", instance->config.name);
-        return 1;
-    }
-
-    simple_connector_init(instance);
-
-    if (uv_mutex_init(&instance->mutex))
-        return 1;
-    if (uv_cond_init(&instance->cond_var))
-        return 1;
-
-    return 0;
-}
-
-/**
- * Initialize OpenTSDB HTTP connector instance
- *
- * @param instance an instance data structure.
- * @return Returns 0 on success, 1 on failure.
- */
-int init_opentsdb_http_instance(struct instance *instance)
-{
-    instance->worker = simple_connector_worker;
-
-    struct simple_connector_config *connector_specific_config = callocz(1, sizeof(struct simple_connector_config));
-    instance->config.connector_specific_config = (void *)connector_specific_config;
-    connector_specific_config->default_port = 4242;
-
-    struct simple_connector_data *connector_specific_data = callocz(1, sizeof(struct simple_connector_data));
-#ifdef ENABLE_HTTPS
-    connector_specific_data->ssl = NETDATA_SSL_UNSET_CONNECTION;
-    if (instance->config.options & EXPORTING_OPTION_USE_TLS) {
-        netdata_ssl_initialize_ctx(NETDATA_SSL_EXPORTING_CTX);
-    }
-#endif
-    instance->connector_specific_data = connector_specific_data;
-
-    instance->start_batch_formatting = open_batch_json_http;
-    instance->start_host_formatting = format_host_labels_opentsdb_http;
-    instance->start_chart_formatting = NULL;
-
-    if (EXPORTING_OPTIONS_DATA_SOURCE(instance->config.options) == EXPORTING_SOURCE_DATA_AS_COLLECTED)
-        instance->metric_formatting = format_dimension_collected_opentsdb_http;
-    else
-        instance->metric_formatting = format_dimension_stored_opentsdb_http;
-
-    instance->end_chart_formatting = NULL;
-    instance->variables_formatting = NULL;
-    instance->end_host_formatting = flush_host_labels;
-    instance->end_batch_formatting = close_batch_json_http;
-
-    instance->prepare_header = opentsdb_http_prepare_header;
-    instance->check_response = exporting_discard_response;
-
-    instance->buffer = (void *)buffer_create(0, &netdata_buffers_statistics.buffers_exporters);
-    if (!instance->buffer) {
-        netdata_log_error("EXPORTING: cannot create buffer for opentsdb HTTP exporting connector instance %s", instance->config.name);
-        return 1;
-    }
-
-    simple_connector_init(instance);
-
-    if (uv_mutex_init(&instance->mutex))
-        return 1;
-    if (uv_cond_init(&instance->cond_var))
-        return 1;
-
-    return 0;
-}
-
-/**
- * Copy a label value and substitute underscores in place of characters which can't be used in OpenTSDB output
- *
- * @param dst a destination string.
- * @param src a source string.
- * @param len the maximum number of characters copied.
- */
-
-void sanitize_opentsdb_label_value(char *dst, const char *src, size_t len)
-{
-    while (*src != '\0' && len) {
-        if (isalpha(*src) || isdigit(*src) || *src == '-' || *src == '.' || *src == '/' || IS_UTF8_BYTE(*src))
-            *dst++ = *src;
-        else
-            *dst++ = '_';
-
-        src++;
-        len--;
-    }
-    *dst = '\0';
-}
-
-/**
- * Format host labels for JSON connector
- *
- * @param instance an instance data structure.
- * @param host a data collecting host.
- * @return Always returns 0.
- */
-
-int format_host_labels_opentsdb_telnet(struct instance *instance, RRDHOST *host) {
-    if(!instance->labels_buffer)
-        instance->labels_buffer = buffer_create(1024, &netdata_buffers_statistics.buffers_exporters);
-
-    if (unlikely(!sending_labels_configured(instance)))
-        return 0;
-
-    buffer_strcat(instance->labels_buffer, " ");
-    rrdlabels_to_buffer(host->rrdlabels, instance->labels_buffer, "", "=", "", " ",
-                        exporting_labels_filter_callback, instance,
-                        NULL, sanitize_opentsdb_label_value);
-    return 0;
-}
-
-/**
- * Format dimension using collected data for OpenTSDB telnet connector
- *
- * @param instance an instance data structure.
- * @param rd a dimension.
- * @return Always returns 0.
- */
-int format_dimension_collected_opentsdb_telnet(struct instance *instance, RRDDIM *rd)
-{
-    RRDSET *st = rd->rrdset;
-    RRDHOST *host = st->rrdhost;
-
-    char chart_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        chart_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && st->name) ? rrdset_name(st) : rrdset_id(st),
-        RRD_ID_LENGTH_MAX);
-
-    char dimension_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        dimension_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && rd->name) ? rrddim_name(rd) : rrddim_id(rd),
-        RRD_ID_LENGTH_MAX);
-
-    buffer_sprintf(
-        instance->buffer,
-        "put %s.%s.%s %llu " COLLECTED_NUMBER_FORMAT " host=%s%s%s%s\n",
-        instance->config.prefix,
-        chart_name,
-        dimension_name,
-        (unsigned long long)rd->collector.last_collected_time.tv_sec,
-        rd->collector.last_collected_value,
-        (host == localhost) ? instance->config.hostname : rrdhost_hostname(host),
-        (host->tags) ? " " : "",
-        (host->tags) ? rrdhost_tags(host) : "",
-        (instance->labels_buffer) ? buffer_tostring(instance->labels_buffer) : "");
-
-    return 0;
-}
-
-/**
- * Format dimension using a calculated value from stored data for OpenTSDB telnet connector
- *
- * @param instance an instance data structure.
- * @param rd a dimension.
- * @return Always returns 0.
- */
-int format_dimension_stored_opentsdb_telnet(struct instance *instance, RRDDIM *rd)
-{
-    RRDSET *st = rd->rrdset;
-    RRDHOST *host = st->rrdhost;
-
-    char chart_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        chart_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && st->name) ? rrdset_name(st) : rrdset_id(st),
-        RRD_ID_LENGTH_MAX);
-
-    char dimension_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        dimension_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && rd->name) ? rrddim_name(rd) : rrddim_id(rd),
-        RRD_ID_LENGTH_MAX);
-
-    time_t last_t;
-    NETDATA_DOUBLE value = exporting_calculate_value_from_stored_data(instance, rd, &last_t);
-
-    if(isnan(value))
-        return 0;
-
-    buffer_sprintf(
-        instance->buffer,
-        "put %s.%s.%s %llu " NETDATA_DOUBLE_FORMAT " host=%s%s%s%s\n",
-        instance->config.prefix,
-        chart_name,
-        dimension_name,
-        (unsigned long long)last_t,
-        value,
-        (host == localhost) ? instance->config.hostname : rrdhost_hostname(host),
-        (host->tags) ? " " : "",
-        (host->tags) ? rrdhost_tags(host) : "",
-        (instance->labels_buffer) ? buffer_tostring(instance->labels_buffer) : "");
-
-    return 0;
-}
-
-/**
- * Prepare HTTP header
- *
- * @param instance an instance data structure.
- * @return Returns 0 on success, 1 on failure.
- */
-void opentsdb_http_prepare_header(struct instance *instance)
-{
-    struct simple_connector_data *simple_connector_data = instance->connector_specific_data;
-
-    buffer_sprintf(
-        simple_connector_data->last_buffer->header,
-        "POST /api/put HTTP/1.1\r\n"
-        "Host: %s\r\n"
-        "%s"
-        "Content-Type: application/json\r\n"
-        "Content-Length: %lu\r\n"
-        "\r\n",
-        instance->config.destination,
-        simple_connector_data->auth_string ? simple_connector_data->auth_string : "",
-        (unsigned long int) buffer_strlen(simple_connector_data->last_buffer->buffer));
-
-    return;
-}
-
-/**
- * Format host labels for OpenTSDB HTTP connector
- *
- * @param instance an instance data structure.
- * @param host a data collecting host.
- * @return Always returns 0.
- */
-
-int format_host_labels_opentsdb_http(struct instance *instance, RRDHOST *host) {
-    if (!instance->labels_buffer)
-        instance->labels_buffer = buffer_create(1024, &netdata_buffers_statistics.buffers_exporters);
-
-    if (unlikely(!sending_labels_configured(instance)))
-        return 0;
-
-    rrdlabels_to_buffer(host->rrdlabels, instance->labels_buffer, ",", ":", "\"", "",
-                        exporting_labels_filter_callback, instance,
-                        NULL, sanitize_opentsdb_label_value);
-    return 0;
-}
-
-/**
- * Format dimension using collected data for OpenTSDB HTTP connector
- *
- * @param instance an instance data structure.
- * @param rd a dimension.
- * @return Always returns 0.
- */
-int format_dimension_collected_opentsdb_http(struct instance *instance, RRDDIM *rd)
-{
-    RRDSET *st = rd->rrdset;
-    RRDHOST *host = st->rrdhost;
-
-    char chart_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        chart_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && st->name) ? rrdset_name(st) : rrdset_id(st),
-        RRD_ID_LENGTH_MAX);
-
-    char dimension_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        dimension_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && rd->name) ? rrddim_name(rd) : rrddim_id(rd),
-        RRD_ID_LENGTH_MAX);
-
-    if (buffer_strlen((BUFFER *)instance->buffer) > 2)
-        buffer_strcat(instance->buffer, ",\n");
-
-    buffer_sprintf(
-        instance->buffer,
-        "{"
-        "\"metric\":\"%s.%s.%s\","
-        "\"timestamp\":%llu,"
-        "\"value\":"COLLECTED_NUMBER_FORMAT","
-        "\"tags\":{"
-        "\"host\":\"%s%s%s\"%s"
-        "}"
-        "}",
-        instance->config.prefix,
-        chart_name,
-        dimension_name,
-        (unsigned long long)rd->collector.last_collected_time.tv_sec,
-        rd->collector.last_collected_value,
-        (host == localhost) ? instance->config.hostname : rrdhost_hostname(host),
-        (host->tags) ? " " : "",
-        (host->tags) ? rrdhost_tags(host) : "",
-        instance->labels_buffer ? buffer_tostring(instance->labels_buffer) : "");
-
-    return 0;
-}
-
-/**
- * Format dimension using a calculated value from stored data for OpenTSDB HTTP connector
- *
- * @param instance an instance data structure.
- * @param rd a dimension.
- * @return Always returns 0.
- */
-int format_dimension_stored_opentsdb_http(struct instance *instance, RRDDIM *rd)
-{
-    RRDSET *st = rd->rrdset;
-    RRDHOST *host = st->rrdhost;
-
-    char chart_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        chart_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && st->name) ? rrdset_name(st) : rrdset_id(st),
-        RRD_ID_LENGTH_MAX);
-
-    char dimension_name[RRD_ID_LENGTH_MAX + 1];
-    exporting_name_copy(
-        dimension_name,
-        (instance->config.options & EXPORTING_OPTION_SEND_NAMES && rd->name) ? rrddim_name(rd) : rrddim_id(rd),
-        RRD_ID_LENGTH_MAX);
-
-    time_t last_t;
-    NETDATA_DOUBLE value = exporting_calculate_value_from_stored_data(instance, rd, &last_t);
-
-    if(isnan(value))
-        return 0;
-
-    if (buffer_strlen((BUFFER *)instance->buffer) > 2)
-        buffer_strcat(instance->buffer, ",\n");
-
-    buffer_sprintf(
-        instance->buffer,
-        "{"
-        "\"metric\":\"%s.%s.%s\","
-        "\"timestamp\":%llu,"
-        "\"value\":" NETDATA_DOUBLE_FORMAT ","
-        "\"tags\":{"
-        "\"host\":\"%s%s%s\"%s"
-        "}"
-        "}",
-        instance->config.prefix,
-        chart_name,
-        dimension_name,
-        (unsigned long long)last_t,
-        value,
-        (host == localhost) ? instance->config.hostname : rrdhost_hostname(host),
-        (host->tags) ? " " : "",
-        (host->tags) ? rrdhost_tags(host) : "",
-        instance->labels_buffer ? buffer_tostring(instance->labels_buffer) : "");
-
-    return 0;
-}
diff --git a/exporting/opentsdb/opentsdb.h b/exporting/opentsdb/opentsdb.h
deleted file mode 100644
index b544ba8c..00000000
--- a/exporting/opentsdb/opentsdb.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
-
-#ifndef NETDATA_EXPORTING_OPENTSDB_H
-#define NETDATA_EXPORTING_OPENTSDB_H
-
-#include "exporting/exporting_engine.h"
-
-int init_opentsdb_telnet_instance(struct instance *instance);
-int init_opentsdb_http_instance(struct instance *instance);
-
-void sanitize_opentsdb_label_value(char *dst, const char *src, size_t len);
-int format_host_labels_opentsdb_telnet(struct instance *instance, RRDHOST *host);
-int format_host_labels_opentsdb_http(struct instance *instance, RRDHOST *host);
-
-int format_dimension_collected_opentsdb_telnet(struct instance *instance, RRDDIM *rd);
-int format_dimension_stored_opentsdb_telnet(struct instance *instance, RRDDIM *rd);
-
-int format_dimension_collected_opentsdb_http(struct instance *instance, RRDDIM *rd);
-int format_dimension_stored_opentsdb_http(struct instance *instance, RRDDIM *rd);
-
-int open_batch_opentsdb_http(struct instance *instance);
-int close_batch_opentsdb_http(struct instance *instance);
-
-void opentsdb_http_prepare_header(struct instance *instance);
-
-#endif //NETDATA_EXPORTING_OPENTSDB_H