Meteor loses connection to the database and does not restore it, how to fix it?

Question

Electronic components

Good afternoon! For the second day now, all the workers of our application are stupid. For some reason, they lose the connection to the database and do not want to restore it. Everything is clear in the logs:

spoiler

=> Starting meteor app on port:80
[Error: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.14' not found (required by /bundle/bundle/programs/server/npm/node_modules/meteor/cfs_gridfs/node_modules/mongodb/node_modules/bson/build/Release/bson.node)]
js-bson: Failed to load c++ bson extension, using pure JS version
Kadira: completed instrumenting the app
Kadira: Successfully connected
{"line":"82","file":"migrations_server.js","message":"Migrations: Not migrating, already at version 7","time":{"$date":1468370047629},"level":"info"}
[email protected]:~$

Before that, there was a problem - the server with the database ran out of space and it began to kick, breaking connections. Now this problem has been eliminated, but where to dig further is unknown.
Everything is clean in the database logs.
When the worker is restarted, everything is fine.

Answer 1

Google PH-2.0, PH-2.5, PH-2.54; XH-2.0, XH-2.5, XH-2.54
www.kosmodrom.com.ua/prodlist.php?name=nx200mm
voron.ua/catalog/010351

Answer 2

it is possible that with each call to the backend a new connection with the muscle is opened and when there are more flows than they can be, they are cut off