bullmq
Version:
Queue for messages and jobs based on Redis
93 lines • 2.7 kB
JavaScript
const content = `--[[
Attempts to reprocess a job
Input:
KEYS[1] job key
KEYS[2] events stream
KEYS[3] job state
KEYS[4] wait key
KEYS[5] meta
KEYS[6] paused key
KEYS[7] active key
KEYS[8] marker key
ARGV[1] job.id
ARGV[2] (job.opts.lifo ? 'R' : 'L') + 'PUSH'
ARGV[3] propVal - failedReason/returnvalue
ARGV[4] prev state - failed/completed
Output:
1 means the operation was a success
-1 means the job does not exist
-3 means the job was not found in the expected set.
]]
local rcall = redis.call;
-- Includes
--[[
Function to add job in target list and add marker if needed.
]]
-- Includes
--[[
Add marker if needed when a job is available.
]]
local function addBaseMarkerIfNeeded(markerKey, isPausedOrMaxed)
if not isPausedOrMaxed then
rcall("ZADD", markerKey, 0, "0")
end
end
local function addJobInTargetList(targetKey, markerKey, pushCmd, isPausedOrMaxed, jobId)
rcall(pushCmd, targetKey, jobId)
addBaseMarkerIfNeeded(markerKey, isPausedOrMaxed)
end
--[[
Function to get max events value or set by default 10000.
]]
local function getOrSetMaxEvents(metaKey)
local maxEvents = rcall("HGET", metaKey, "opts.maxLenEvents")
if not maxEvents then
maxEvents = 10000
rcall("HSET", metaKey, "opts.maxLenEvents", maxEvents)
end
return maxEvents
end
--[[
Function to check for the meta.paused key to decide if we are paused or not
(since an empty list and !EXISTS are not really the same).
]]
local function getTargetQueueList(queueMetaKey, activeKey, waitKey, pausedKey)
local queueAttributes = rcall("HMGET", queueMetaKey, "paused", "concurrency")
if queueAttributes[1] then
return pausedKey, true
else
if queueAttributes[2] then
local activeCount = rcall("LLEN", activeKey)
if activeCount >= tonumber(queueAttributes[2]) then
return waitKey, true
else
return waitKey, false
end
end
end
return waitKey, false
end
if rcall("EXISTS", KEYS[1]) == 1 then
local jobId = ARGV[1]
if (rcall("ZREM", KEYS[3], jobId) == 1) then
rcall("HDEL", KEYS[1], "finishedOn", "processedOn", ARGV[3])
local target, isPausedOrMaxed = getTargetQueueList(KEYS[5], KEYS[7], KEYS[4], KEYS[6])
addJobInTargetList(target, KEYS[8], ARGV[2], isPausedOrMaxed, jobId)
local maxEvents = getOrSetMaxEvents(KEYS[5])
-- Emit waiting event
rcall("XADD", KEYS[2], "MAXLEN", "~", maxEvents, "*", "event", "waiting",
"jobId", jobId, "prev", ARGV[4]);
return 1
else
return -3
end
else
return -1
end
`;
export const reprocessJob = {
name: 'reprocessJob',
content,
keys: 8,
};
//# sourceMappingURL=reprocessJob-8.js.map