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Merge branch 'feature/BB-309-add-oplog-populator-metrics' into q/8.4
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| const { ZenkoMetrics } = require('arsenal').metrics; | ||
|
|
||
| const { getStringSizeInBytes } = require('../../lib/util/buffer'); | ||
|
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| class OplogPopulatorMetrics { | ||
| /** | ||
| * @param {Logger} logger logger instance | ||
| */ | ||
| constructor(logger) { | ||
| this.acknowledgementLag = null; | ||
| this.connectorConfiguration = null; | ||
| this.requestSize = null; | ||
| this.connectors = null; | ||
| this.reconfigurationLag = null; | ||
| this.connectorConfigurationApplied = null; | ||
| this._logger = logger; | ||
| } | ||
|
|
||
| registerMetrics() { | ||
| this.acknowledgementLag = ZenkoMetrics.createHistogram({ | ||
| name: 'oplog_populator_acknowledgement_lag_sec', | ||
| help: 'Delay between a config change in mongo and the start of processing by the oplogPopulator in seconds', | ||
| labelNames: ['opType'], | ||
| buckets: [0.001, 0.01, 1, 10, 100, 1000, 10000], | ||
| }); | ||
| this.connectorConfiguration = ZenkoMetrics.createCounter({ | ||
| name: 'oplog_populator_connector_configuration', | ||
| help: 'Number of times we update the configuration of a connector', | ||
| labelNames: ['connector', 'opType'], | ||
| }); | ||
| this.buckets = ZenkoMetrics.createGauge({ | ||
| name: 'oplog_populator_connector_buckets', | ||
| help: 'Number of buckets per connector', | ||
| labelNames: ['connector'], | ||
| }); | ||
| this.requestSize = ZenkoMetrics.createCounter({ | ||
| name: 'oplog_populator_connector_request_bytes', | ||
| help: 'Size of kafka connect request in bytes', | ||
| labelNames: ['connector'], | ||
| }); | ||
| this.mongoPipelineSize = ZenkoMetrics.createGauge({ | ||
| name: 'oplog_populator_connector_pipeline_bytes', | ||
| help: 'Size of mongo pipeline in bytes', | ||
| labelNames: ['connector'], | ||
| }); | ||
| this.connectors = ZenkoMetrics.createGauge({ | ||
| name: 'oplog_populator_connectors', | ||
| help: 'Total number of configured connectors', | ||
| labelNames: ['isOld'], | ||
| }); | ||
| this.reconfigurationLag = ZenkoMetrics.createHistogram({ | ||
| name: 'oplog_populator_reconfiguration_lag_sec', | ||
| help: 'Time it takes kafka-connect to respond to a connector configuration request', | ||
| labelNames: ['connector'], | ||
| buckets: [0.001, 0.01, 1, 10, 100, 1000, 10000], | ||
| }); | ||
| this.connectorConfigurationApplied = ZenkoMetrics.createCounter({ | ||
| name: 'oplog_populator_connector_configuration_applied', | ||
| help: 'Number of times we submit the configuration of a connector to kafka-connect', | ||
| labelNames: ['connector', 'success'], | ||
| }); | ||
| } | ||
|
|
||
| /** | ||
| * updates oplog_populator_acknowledgement_lag_sec metric | ||
| * @param {string} opType oplog operation type | ||
| * @param {number} delta delay between a config change | ||
| * in mongo and it getting processed by the oplogPopulator | ||
| * @returns {undefined} | ||
| */ | ||
| onOplogEventProcessed(opType, delta) { | ||
| try { | ||
| this.acknowledgementLag.observe({ | ||
| opType, | ||
| }, delta); | ||
| } catch (error) { | ||
| this._logger.error('An error occured while pushing metric', { | ||
| method: 'OplogPopulatorMetrics.onOplogEventProcessed', | ||
| error: error.message, | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * updates oplog_populator_connector_configuration & | ||
| * oplog_populator_connector_request_bytes metrics | ||
| * @param {Connector} connector connector instance | ||
| * @param {string} opType operation type, could be one of | ||
| * "add" and "delete" | ||
| * @param {number} buckets number of buckets updated | ||
| * @returns {undefined} | ||
| */ | ||
| onConnectorConfigured(connector, opType, buckets = 1) { | ||
| try { | ||
| this.connectorConfiguration.inc({ | ||
| connector: connector.name, | ||
| opType, | ||
| }, buckets); | ||
| const reqSize = getStringSizeInBytes(JSON.stringify(connector.config)); | ||
| this.requestSize.inc({ | ||
| connector: connector.name, | ||
| }, reqSize); | ||
| const pipelineSize = getStringSizeInBytes(JSON.stringify(connector.config.pipeline)); | ||
| this.mongoPipelineSize.set({ | ||
| connector: connector.name, | ||
| }, pipelineSize); | ||
| } catch (error) { | ||
| this._logger.error('An error occured while pushing metrics', { | ||
| method: 'OplogPopulatorMetrics.onConnectorConfigured', | ||
| error: error.message, | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * updates oplog_populator_connectors metric | ||
| * @param {boolean} isOld true if connectors were not | ||
| * created by this OplogPopulator instance | ||
| * @param {number} count number of connectors added | ||
| * @returns {undefined} | ||
| */ | ||
| onConnectorsInstantiated(isOld, count = 1) { | ||
| try { | ||
| this.connectors.inc({ | ||
| isOld, | ||
| }, count); | ||
| } catch (error) { | ||
| this._logger.error('An error occured while pushing metrics', { | ||
| method: 'OplogPopulatorMetrics.onConnectorsInstantiated', | ||
| error: error.message, | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * updates oplog_populator_reconfiguration_lag_sec metric | ||
| * @param {Connector} connector connector instance | ||
| * @param {Boolean} success true if reconfiguration was successful | ||
| * @param {number} delta time it takes to reconfigure a connector | ||
| * @returns {undefined} | ||
| */ | ||
| onConnectorReconfiguration(connector, success, delta = null) { | ||
| try { | ||
| this.connectorConfigurationApplied.inc({ | ||
| connector: connector.name, | ||
| success, | ||
| }); | ||
| if (success) { | ||
| this.reconfigurationLag.observe({ | ||
| connector: connector.name, | ||
| }, delta); | ||
| this.buckets.set({ | ||
| connector: connector.name, | ||
| }, connector.bucketCount); | ||
| } | ||
| } catch (error) { | ||
| this._logger.error('An error occured while pushing metrics', { | ||
| method: 'OplogPopulatorMetrics.onConnectorReconfiguration', | ||
| error: error.message, | ||
| }); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| module.exports = OplogPopulatorMetrics; |
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