diff options
Diffstat (limited to 'exporting/aws_kinesis')
| -rw-r--r-- | exporting/aws_kinesis/Makefile.am | 8 | ||||
| -rw-r--r-- | exporting/aws_kinesis/README.md | 58 | ||||
| -rw-r--r-- | exporting/aws_kinesis/aws_kinesis.c | 217 | ||||
| -rw-r--r-- | exporting/aws_kinesis/aws_kinesis.h | 16 | ||||
| -rw-r--r-- | exporting/aws_kinesis/aws_kinesis_put_record.cc | 151 | ||||
| -rw-r--r-- | exporting/aws_kinesis/aws_kinesis_put_record.h | 35 |
6 files changed, 485 insertions, 0 deletions
diff --git a/exporting/aws_kinesis/Makefile.am b/exporting/aws_kinesis/Makefile.am new file mode 100644 index 0000000..161784b --- /dev/null +++ b/exporting/aws_kinesis/Makefile.am @@ -0,0 +1,8 @@ +# 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/aws_kinesis/README.md b/exporting/aws_kinesis/README.md new file mode 100644 index 0000000..299fec5 --- /dev/null +++ b/exporting/aws_kinesis/README.md @@ -0,0 +1,58 @@ +<!-- +title: "Export metrics to AWS Kinesis Data Streams" +description: "Archive your Agent's metrics to AWS Kinesis Data Streams for long-term storage, further analysis, or correlation with data from other sources." +custom_edit_url: https://github.com/netdata/netdata/edit/master/exporting/aws_kinesis/README.md +sidebar_label: AWS Kinesis Data Streams +--> + +# Export metrics to AWS Kinesis Data Streams + +## Prerequisites + +To use AWS Kinesis for metric collecting and processing, you should first +[install](https://docs.aws.amazon.com/en_us/sdk-for-cpp/v1/developer-guide/setup.html) AWS SDK for C++. +`libcrypto`, `libssl`, and `libcurl` are also required to compile Netdata with Kinesis support enabled. Next, Netdata +should be re-installed from the source. The installer will detect that the required libraries are now available. + +If the AWS SDK for C++ is being installed from source, it is useful to set `-DBUILD_ONLY=kinesis`. Otherwise, the +build process could take a very long time. Note, that the default installation path for the libraries is +`/usr/local/lib64`. Many Linux distributions don't include this path as the default one for a library search, so it is +advisable to use the following options to `cmake` while building the AWS SDK: + +```sh +sudo cmake -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_ONLY=kinesis <aws-sdk-cpp sources> +``` + +The `-DCMAKE_INSTALL_PREFIX=/usr` option also ensures that +[third party dependencies](https://github.com/aws/aws-sdk-cpp#third-party-dependencies) are installed in your system +during the SDK build process. + +## Configuration + +To enable data sending to the Kinesis service, run `./edit-config exporting.conf` in the Netdata configuration directory +and set the following options: + +```conf +[kinesis:my_instance] + enabled = yes + destination = us-east-1 +``` + +Set the `destination` option to an AWS region. + +Set AWS credentials and stream name: + +```conf + # AWS credentials + aws_access_key_id = your_access_key_id + aws_secret_access_key = your_secret_access_key + # destination stream + stream name = your_stream_name +``` + +Alternatively, you can set AWS credentials for the `netdata` user using AWS SDK for C++ [standard methods](https://docs.aws.amazon.com/sdk-for-cpp/v1/developer-guide/credentials.html). + +Netdata automatically computes a partition key for every record with the purpose to distribute records across +available shards evenly. + +[](<>) diff --git a/exporting/aws_kinesis/aws_kinesis.c b/exporting/aws_kinesis/aws_kinesis.c new file mode 100644 index 0000000..036afb4 --- /dev/null +++ b/exporting/aws_kinesis/aws_kinesis.c @@ -0,0 +1,217 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "aws_kinesis.h" + +/** + * Clean AWS Kinesis * + */ +void aws_kinesis_cleanup(struct instance *instance) +{ + info("EXPORTING: cleaning up instance %s ...", instance->config.name); + kinesis_shutdown(instance->connector_specific_data); + + freez(instance->connector_specific_data); + + struct aws_kinesis_specific_config *connector_specific_config = instance->config.connector_specific_config; + if (connector_specific_config) { + freez(connector_specific_config->auth_key_id); + freez(connector_specific_config->secure_key); + freez(connector_specific_config->stream_name); + + freez(connector_specific_config); + } + + info("EXPORTING: instance %s exited", instance->config.name); + instance->exited = 1; +} + +/** + * Initialize AWS Kinesis connector instance + * + * @param instance an instance data structure. + * @return Returns 0 on success, 1 on failure. + */ +int init_aws_kinesis_instance(struct instance *instance) +{ + instance->worker = aws_kinesis_connector_worker; + + instance->start_batch_formatting = NULL; + instance->start_host_formatting = format_host_labels_json_plaintext; + instance->start_chart_formatting = NULL; + + if (EXPORTING_OPTIONS_DATA_SOURCE(instance->config.options) == EXPORTING_SOURCE_DATA_AS_COLLECTED) + instance->metric_formatting = format_dimension_collected_json_plaintext; + else + instance->metric_formatting = format_dimension_stored_json_plaintext; + + instance->end_chart_formatting = NULL; + instance->end_host_formatting = flush_host_labels; + instance->end_batch_formatting = NULL; + + instance->prepare_header = NULL; + instance->check_response = NULL; + + instance->buffer = (void *)buffer_create(0); + if (!instance->buffer) { + error("EXPORTING: cannot create buffer for AWS Kinesis exporting connector instance %s", instance->config.name); + return 1; + } + if (uv_mutex_init(&instance->mutex)) + return 1; + if (uv_cond_init(&instance->cond_var)) + return 1; + + if (!instance->engine->aws_sdk_initialized) { + aws_sdk_init(); + instance->engine->aws_sdk_initialized = 1; + } + + struct aws_kinesis_specific_config *connector_specific_config = instance->config.connector_specific_config; + struct aws_kinesis_specific_data *connector_specific_data = callocz(1, sizeof(struct aws_kinesis_specific_data)); + instance->connector_specific_data = (void *)connector_specific_data; + + if (!strcmp(connector_specific_config->stream_name, "")) { + error("stream name is a mandatory Kinesis parameter but it is not configured"); + return 1; + } + + kinesis_init( + (void *)connector_specific_data, + instance->config.destination, + connector_specific_config->auth_key_id, + connector_specific_config->secure_key, + instance->config.timeoutms); + + return 0; +} + +/** + * AWS Kinesis connector worker + * + * Runs in a separate thread for every instance. + * + * @param instance_p an instance data structure. + */ +void aws_kinesis_connector_worker(void *instance_p) +{ + struct instance *instance = (struct instance *)instance_p; + struct aws_kinesis_specific_config *connector_specific_config = instance->config.connector_specific_config; + struct aws_kinesis_specific_data *connector_specific_data = instance->connector_specific_data; + + while (!instance->engine->exit) { + unsigned long long partition_key_seq = 0; + struct stats *stats = &instance->stats; + + uv_mutex_lock(&instance->mutex); + while (!instance->data_is_ready) + uv_cond_wait(&instance->cond_var, &instance->mutex); + instance->data_is_ready = 0; + + if (unlikely(instance->engine->exit)) { + uv_mutex_unlock(&instance->mutex); + break; + } + + // reset the monitoring chart counters + stats->received_bytes = + stats->sent_bytes = + stats->sent_metrics = + stats->lost_metrics = + stats->receptions = + stats->transmission_successes = + stats->transmission_failures = + stats->data_lost_events = + stats->lost_bytes = + stats->reconnects = 0; + + BUFFER *buffer = (BUFFER *)instance->buffer; + size_t buffer_len = buffer_strlen(buffer); + + stats->buffered_bytes = buffer_len; + + size_t sent = 0; + + while (sent < buffer_len) { + char partition_key[KINESIS_PARTITION_KEY_MAX + 1]; + snprintf(partition_key, KINESIS_PARTITION_KEY_MAX, "netdata_%llu", partition_key_seq++); + size_t partition_key_len = strnlen(partition_key, KINESIS_PARTITION_KEY_MAX); + + const char *first_char = buffer_tostring(buffer) + sent; + + size_t record_len = 0; + + // split buffer into chunks of maximum allowed size + if (buffer_len - sent < KINESIS_RECORD_MAX - partition_key_len) { + record_len = buffer_len - sent; + } else { + record_len = KINESIS_RECORD_MAX - partition_key_len; + while (record_len && *(first_char + record_len - 1) != '\n') + record_len--; + } + char error_message[ERROR_LINE_MAX + 1] = ""; + + debug( + D_BACKEND, + "EXPORTING: kinesis_put_record(): dest = %s, id = %s, key = %s, stream = %s, partition_key = %s, \ + buffer = %zu, record = %zu", + instance->config.destination, + connector_specific_config->auth_key_id, + connector_specific_config->secure_key, + connector_specific_config->stream_name, + partition_key, + buffer_len, + record_len); + + kinesis_put_record( + connector_specific_data, connector_specific_config->stream_name, partition_key, first_char, record_len); + + sent += record_len; + stats->transmission_successes++; + + size_t sent_bytes = 0, lost_bytes = 0; + + if (unlikely(kinesis_get_result( + connector_specific_data->request_outcomes, error_message, &sent_bytes, &lost_bytes))) { + // oops! we couldn't send (all or some of the) data + error("EXPORTING: %s", error_message); + error( + "EXPORTING: failed to write data to database backend '%s'. Willing to write %zu bytes, wrote %zu bytes.", + instance->config.destination, sent_bytes, sent_bytes - lost_bytes); + + stats->transmission_failures++; + stats->data_lost_events++; + stats->lost_bytes += lost_bytes; + + // estimate the number of lost metrics + stats->lost_metrics += (collected_number)( + stats->buffered_metrics * + (buffer_len && (lost_bytes > buffer_len) ? (double)lost_bytes / buffer_len : 1)); + + break; + } else { + stats->receptions++; + } + + if (unlikely(instance->engine->exit)) + break; + } + + stats->sent_bytes += sent; + if (likely(sent == buffer_len)) + stats->sent_metrics = stats->buffered_metrics; + + buffer_flush(buffer); + + send_internal_metrics(instance); + + stats->buffered_metrics = 0; + + uv_mutex_unlock(&instance->mutex); + +#ifdef UNIT_TESTING + return; +#endif + } + + aws_kinesis_cleanup(instance); +} diff --git a/exporting/aws_kinesis/aws_kinesis.h b/exporting/aws_kinesis/aws_kinesis.h new file mode 100644 index 0000000..d88a458 --- /dev/null +++ b/exporting/aws_kinesis/aws_kinesis.h @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef NETDATA_EXPORTING_KINESIS_H +#define NETDATA_EXPORTING_KINESIS_H + +#include "exporting/exporting_engine.h" +#include "exporting/json/json.h" +#include "aws_kinesis_put_record.h" + +#define KINESIS_PARTITION_KEY_MAX 256 +#define KINESIS_RECORD_MAX 1024 * 1024 + +int init_aws_kinesis_instance(struct instance *instance); +void aws_kinesis_connector_worker(void *instance_p); + +#endif //NETDATA_EXPORTING_KINESIS_H diff --git a/exporting/aws_kinesis/aws_kinesis_put_record.cc b/exporting/aws_kinesis/aws_kinesis_put_record.cc new file mode 100644 index 0000000..b20ec13 --- /dev/null +++ b/exporting/aws_kinesis/aws_kinesis_put_record.cc @@ -0,0 +1,151 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include <aws/core/Aws.h> +#include <aws/core/client/ClientConfiguration.h> +#include <aws/core/auth/AWSCredentials.h> +#include <aws/core/utils/Outcome.h> +#include <aws/kinesis/KinesisClient.h> +#include <aws/kinesis/model/PutRecordRequest.h> +#include "aws_kinesis_put_record.h" + +using namespace Aws; + +static SDKOptions options; + +struct request_outcome { + Kinesis::Model::PutRecordOutcomeCallable future_outcome; + size_t data_len; +}; + +/** + * Initialize AWS SDK API + */ +void aws_sdk_init() +{ + InitAPI(options); +} + +/** + * Shutdown AWS SDK API + */ +void aws_sdk_shutdown() +{ + ShutdownAPI(options); +} + +/** + * Initialize a client and a data structure for request outcomes + * + * @param kinesis_specific_data_p a pointer to a structure with client and request outcome information. + * @param region AWS region. + * @param access_key_id AWS account access key ID. + * @param secret_key AWS account secret access key. + * @param timeout communication timeout. + */ +void kinesis_init( + void *kinesis_specific_data_p, const char *region, const char *access_key_id, const char *secret_key, + const long timeout) +{ + struct aws_kinesis_specific_data *kinesis_specific_data = + (struct aws_kinesis_specific_data *)kinesis_specific_data_p; + + Client::ClientConfiguration config; + + config.region = region; + config.requestTimeoutMs = timeout; + config.connectTimeoutMs = timeout; + + Kinesis::KinesisClient *client; + + if (access_key_id && *access_key_id && secret_key && *secret_key) { + client = New<Kinesis::KinesisClient>("client", Auth::AWSCredentials(access_key_id, secret_key), config); + } else { + client = New<Kinesis::KinesisClient>("client", config); + } + kinesis_specific_data->client = (void *)client; + + Vector<request_outcome> *request_outcomes; + + request_outcomes = new Vector<request_outcome>; + kinesis_specific_data->request_outcomes = (void *)request_outcomes; +} + +/** + * Deallocate Kinesis specific data + * + * @param kinesis_specific_data_p a pointer to a structure with client and request outcome information. + */ +void kinesis_shutdown(void *kinesis_specific_data_p) +{ + struct aws_kinesis_specific_data *kinesis_specific_data = + (struct aws_kinesis_specific_data *)kinesis_specific_data_p; + + Delete((Kinesis::KinesisClient *)kinesis_specific_data->client); + delete (Vector<request_outcome> *)kinesis_specific_data->request_outcomes; +} + +/** + * Send data to the Kinesis service + * + * @param kinesis_specific_data_p a pointer to a structure with client and request outcome information. + * @param stream_name the name of a stream to send to. + * @param partition_key a partition key which automatically maps data to a specific stream. + * @param data a data buffer to send to the stream. + * @param data_len the length of the data buffer. + */ +void kinesis_put_record( + void *kinesis_specific_data_p, const char *stream_name, const char *partition_key, const char *data, + size_t data_len) +{ + struct aws_kinesis_specific_data *kinesis_specific_data = + (struct aws_kinesis_specific_data *)kinesis_specific_data_p; + Kinesis::Model::PutRecordRequest request; + + request.SetStreamName(stream_name); + request.SetPartitionKey(partition_key); + request.SetData(Utils::ByteBuffer((unsigned char *)data, data_len)); + + ((Vector<request_outcome> *)(kinesis_specific_data->request_outcomes))->push_back( + { ((Kinesis::KinesisClient *)(kinesis_specific_data->client))->PutRecordCallable(request), data_len }); +} + +/** + * Get results from service responces + * + * @param request_outcomes_p request outcome information. + * @param error_message report error message to a caller. + * @param sent_bytes report to a caller how many bytes was successfuly sent. + * @param lost_bytes report to a caller how many bytes was lost during transmission. + * @return Returns 0 if all data was sent successfully, 1 when data was lost on transmission + */ +int kinesis_get_result(void *request_outcomes_p, char *error_message, size_t *sent_bytes, size_t *lost_bytes) +{ + Vector<request_outcome> *request_outcomes = (Vector<request_outcome> *)request_outcomes_p; + Kinesis::Model::PutRecordOutcome outcome; + *sent_bytes = 0; + *lost_bytes = 0; + + for (auto request_outcome = request_outcomes->begin(); request_outcome != request_outcomes->end();) { + std::future_status status = request_outcome->future_outcome.wait_for(std::chrono::microseconds(100)); + + if (status == std::future_status::ready || status == std::future_status::deferred) { + outcome = request_outcome->future_outcome.get(); + *sent_bytes += request_outcome->data_len; + + if (!outcome.IsSuccess()) { + *lost_bytes += request_outcome->data_len; + outcome.GetError().GetMessage().copy(error_message, ERROR_LINE_MAX); + } + + request_outcomes->erase(request_outcome); + } else { + ++request_outcome; + } + } + + if (*lost_bytes) { + return 1; + } + + return 0; +} diff --git a/exporting/aws_kinesis/aws_kinesis_put_record.h b/exporting/aws_kinesis/aws_kinesis_put_record.h new file mode 100644 index 0000000..321baf6 --- /dev/null +++ b/exporting/aws_kinesis/aws_kinesis_put_record.h @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#ifndef NETDATA_EXPORTING_KINESIS_PUT_RECORD_H +#define NETDATA_EXPORTING_KINESIS_PUT_RECORD_H + +#define ERROR_LINE_MAX 1023 + +#ifdef __cplusplus +extern "C" { +#endif + +struct aws_kinesis_specific_data { + void *client; + void *request_outcomes; +}; + +void aws_sdk_init(); +void aws_sdk_shutdown(); + +void kinesis_init( + void *kinesis_specific_data_p, const char *region, const char *access_key_id, const char *secret_key, + const long timeout); +void kinesis_shutdown(void *client); + +void kinesis_put_record( + void *kinesis_specific_data_p, const char *stream_name, const char *partition_key, const char *data, + size_t data_len); + +int kinesis_get_result(void *request_outcomes_p, char *error_message, size_t *sent_bytes, size_t *lost_bytes); + +#ifdef __cplusplus +} +#endif + +#endif //NETDATA_EXPORTING_KINESIS_PUT_RECORD_H |