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44 lines
1.4 KiB
CoffeeScript
44 lines
1.4 KiB
CoffeeScript
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Settings = require "settings-sharelatex"
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rclient = require("redis-sharelatex").createClient(Settings.redis.documentupdater)
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keys = Settings.redis.documentupdater.key_schema
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async = require "async"
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RedisManager = require "./app/js/RedisManager"
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getKeysFromNode = (node, pattern, callback) ->
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cursor = 0 # redis iterator
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keySet = {} # use hash to avoid duplicate results
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# scan over all keys looking for pattern
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doIteration = (cb) ->
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node.scan cursor, "MATCH", pattern, "COUNT", 1000, (error, reply) ->
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return callback(error) if error?
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[cursor, keys] = reply
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console.log "SCAN", keys.length
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for key in keys
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keySet[key] = true
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if cursor == '0' # note redis returns string result not numeric
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return callback(null, Object.keys(keySet))
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else
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doIteration()
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doIteration()
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getKeys = (pattern, callback) ->
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nodes = rclient.nodes?('master') || [ rclient ];
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console.log "GOT NODES", nodes.length
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doKeyLookupForNode = (node, cb) ->
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getKeysFromNode node, pattern, cb
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async.concatSeries nodes, doKeyLookupForNode, callback
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TTL = 60 * 60 # 1 hour
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expireDocOps = (callback) ->
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getKeys keys.docOps(doc_id: "*"), (error, keys) ->
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async.mapSeries keys,
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(key, cb) ->
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console.log "EXPIRE #{key} #{RedisManager.DOC_OPS_TTL}"
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rclient.expire key, RedisManager.DOC_OPS_TTL, cb
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callback
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setTimeout () -> # Give redis a chance to connect
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expireDocOps (error) ->
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throw error if error?
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process.exit()
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, 1000
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