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Merge pull request #1099 from balena-io/db-target-state-cache

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Add a cache around the database application target state
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CameronDiver 2019-10-07 16:19:03 +01:00 committed by GitHub
commit 12f68634d8
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2 changed files with 4 additions and 4 deletions
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4
src/application-manager.coffee
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@ -17,7 +17,7 @@ updateLock = require './lib/update-lock'
{ ContractViolationError, ContractValidationError, NotFoundError } = require './lib/errors' { ContractViolationError, ContractValidationError, NotFoundError } = require './lib/errors'
{ pathExistsOnHost } = require './lib/fs-utils' { pathExistsOnHost } = require './lib/fs-utils'
{ ApplicationTargetStateWrapper } = require './target-state' { TargetStateAccessor } = require './target-state'
{ ServiceManager } = require './compose/service-manager' { ServiceManager } = require './compose/service-manager'
{ Service } = require './compose/service' { Service } = require './compose/service'
@ -82,7 +82,7 @@ module.exports = class ApplicationManager extends EventEmitter
@_targetVolatilePerImageId = {} @_targetVolatilePerImageId = {}
@_containerStarted = {} @_containerStarted = {}
@targetStateWrapper = new ApplicationTargetStateWrapper(this, @config, @db) @targetStateWrapper = new TargetStateAccessor(this, @config, @db)
@config.on 'change', (changedConfig) => @config.on 'change', (changedConfig) =>
if changedConfig.appUpdatePollInterval if changedConfig.appUpdatePollInterval

4
src/target-state.ts
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@ -20,7 +20,7 @@ export type DatabaseApps = DatabaseApp[];
* line. This can very quickly cause serious memory problems * line. This can very quickly cause serious memory problems
* and database connection timeouts. * and database connection timeouts.
*/ */
export class ApplicationTargetStateWrapper { export class TargetStateAccessor {
private targetState?: DatabaseApps; private targetState?: DatabaseApps;
public constructor( public constructor(
@ -77,4 +77,4 @@ export class ApplicationTargetStateWrapper {
} }
} }
export default ApplicationTargetStateWrapper; export default TargetStateAccessor;