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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: Not Applicable
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Component/s: None
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/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/utils.js:132
throw err;
^TypeError: Cannot convert undefined or null to object
at session.endSession (/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/utils.js:398:11) at ClientSession.endSession (/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb-core/lib/sessions.js:129:41)
at executeCallback (/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/utils.js:397:17)
at handleCallback (/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/utils.js:128:55)
at executeCommands (/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/bulk/ordered.js:134:12)
at /home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/utils.js:437:24
at new Promise (<anonymous>)
at executeOperation (/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/utils.js:432:10)
at OrderedBulkOperation.execute (/home/jenkins/resourceMgr_source/ResourceManagerNode/node_modules/mongodb/lib/bulk/ordered.js:121:12) at router.put (/home/jenkins/resourceMgr_source/ResourceManagerNode/routes/resourcePools.js:132:16)
This issue I have has never occurred before (this application has been running for a long time), however the express route that has the code is rarely used.
I'm guessing there may be a conflict with transactions and the bulk operation? Maybe something else wasn't set right after a transaction ran? Not really sure what's going on here. In the server logs, there were no other requests running before for a good amount of time (at least a minute).
I can't reproduce the issue either but I will provide the express route that is referenced in the backtrace.
route that causes crash:
router.put('/:resourcePool/', async (req, res) => { const db = req.db; const body = req.body; const poolsCollection = db.collection('resourcePools'); const resources = db.collection('resources'); const name = req.params.resourcePool; if (!body.name) { return fail(res, 'New name not specified.'); } const pool = await poolsCollection.findOneAndUpdate({ name }, { $set: { name: body.name } }); const assigned = pool.value.assignedResources; const bulk = resources.initializeOrderedBulkOp(); for (let i = 0; i < assigned.length; i += 1) { // Assigned resource const aResource = assigned[i]; bulk.find({ _id: aResource }).updateOne({ $pull: { assignedResourcePools: name } }); bulk.find({ _id: aResource }).updateOne({ $addToSet: { assignedResourcePools: body.name } }); } // console.log(bulk); try { await bulk.execute(); // <-- this is line 132 that causes the crash } catch (e) { logger.RMLog.info('ResourcePool name changed - but no dependent resources found in DB'); socketserver.refreshPools(); return succeed(res); } socketserver.refreshPools(); console.log(res); return succeed(res); });