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26 lines
976 B
CoffeeScript
26 lines
976 B
CoffeeScript
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Settings = require "settings-sharelatex"
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PersistenceManager = require "./PersistenceManager"
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module.exports = MongoHealthCheck =
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isAlive: (_callback = (error) ->) ->
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# We've seen very occasionally the doc-updater losing its connection to Mongo.
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# E.g. https://sharelatex.hackpad.com/29th-Aug-2015-0650-0740-fHlw8RL8zuN
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# It seems that the mongo callbacks never returned.
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# Mongo is only called in the persistence manager, so we do a read-only
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# test call, check that it's working, and returns in a reasonable time.
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callback = (args...) ->
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_callback(args...)
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_callback = () ->
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doc_id = Settings.smokeTest?.doc_id
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if !doc_id?
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return callback(new Error("No test doc_id configured"))
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PersistenceManager.getDocVersionInMongo doc_id, (error, version) ->
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return callback(error) if error?
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callback(null)
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timeout = Settings.smokeTest?.timeout or 10000
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setTimeout () ->
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callback(new Error("Mongo did not return in #{timeout}ms"))
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, timeout
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