MongoError: server instance pool was destroyed

[yaotian]

System information

• Have I written custom code (as opposed to using zenbot vanilla):no
• OS Platform and Distribution (e.g., Linux Ubuntu 16.04):Linux Ubuntu 16.04
• Zenbot version (commit ref, or version):4.1.0
• Zenbot branch:unstanble
• NodeJS version:v9.5.0
• Python version (when using a python script):n/a
• Exact command to reproduce (include everything):
  env node zenbot.js trade binance.BTC-USDT --paper --strategy=bollinger --currency_capital=5000 --period_length=5m
• Did I make any changes to conf-sample.js?:no

Describe the problem

crash and print error msg again and again.
restart mongdb, it is still there.

Source code / Error logs

2018-06-10 09:17:41 - error saving session
{ MongoError: server instance pool was destroyed
at basicWriteValidations (/home/yaotian/app/zenbot/node_modules/mongodb-core/lib/topologies/server.js:641:41)
at Server.update (/home/yaotian/app/zenbot/node_modules/mongodb-core/lib/topologies/server.js:781:16)
at Server.update (/home/yaotian/app/zenbot/node_modules/mongodb/lib/topologies/topology_base.js:326:25)
at updateDocuments (/home/yaotian/app/zenbot/node_modules/mongodb/lib/collection.js:1023:19)
at save (/home/yaotian/app/zenbot/node_modules/mongodb/lib/collection.js:1273:12)
at executeOperation (/home/yaotian/app/zenbot/node_modules/mongodb/lib/utils.js:420:24)
at Collection.save (/home/yaotian/app/zenbot/node_modules/mongodb/lib/collection.js:1260:10)
at /home/yaotian/app/zenbot/commands/trade.js:611:22
at /home/yaotian/app/zenbot/lib/engine.js:240:9
at /home/yaotian/app/zenbot/lib/engine.js:309:7
name: 'MongoError',
message: 'server instance pool was destroyed' }

[diegstroyer]

Trty to update MongoDB via npm, in meteor project any user have a similar issue.

zenbot update npm-mongo
zenbot update --all-packages

Related issues:
meteor/meteor#7822

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.