| receiver-zipkin | default | A receiver for Zipkin traces. | - | - | |
| - | - | sampleRate | The sample rate precision is 1/10000, should be between 0 and 10000 | SW_ZIPKIN_SAMPLE_RATE | 10000 |
| - | - | searchableTracesTags | Defines a set of span tag keys which are searchable. Multiple values are separated by commas. | SW_ZIPKIN_SEARCHABLE_TAG_KEYS | http.method |
| - | - | sampleRate | The sample rate precision is 1/10000, should be between 0 and 10000 | SW_ZIPKIN_SAMPLE_RATE | 10000 |
| - | - | searchableTracesTags | Defines a set of span tag keys which are searchable. Multiple values are separated by commas. | SW_ZIPKIN_SEARCHABLE_TAG_KEYS | http.method |
| - | - | kafkaConsumerConfig | Kafka consumer config, JSON format as Properties. If it contains the same key with above, would override. | SW_ZIPKIN_KAFKA_CONSUMER_CONFIG | "{\"auto.offset.reset\":\"earliest\",\"enable.auto.commit\":true}" |
| - | - | kafkaConsumers | The number of consumers to create. | SW_ZIPKIN_KAFKA_CONSUMERS | 1 |
| - | - | kafkaHandlerThreadPoolSize | Pool size of Kafka message handler executor. | SW_ZIPKIN_KAFKA_HANDLER_THREAD_POOL_SIZE | CPU core * 2 |
| prometheus-fetcher | default | Prometheus fetcher reads metrics from Prometheus endpoint, and transfer the metrics into SkyWalking native format for the MAL engine. | - | - | |
| - | - | maxConvertWorker | The maximize meter convert worker. | SW_PROMETHEUS_FETCHER_NUM_CONVERT_WORKER | -1(by default, half the number of CPU core(s)) |