Sudden tickets use after upgrading from 3.0.3 to 3.0.4 or 3.0.5 (WiredTiger)

39 views

Skip to first unread message

Sicabol

unread,

Jul 31, 2015, 8:53:40 AM7/31/15

to mongodb-user

Hi,

I have a replica set with 3 servers on version 3.0.3. running on Ubuntu. All of them are using WiredTiger files and it works like a charm.

When 3.0.4. has been released, I've upgraded all the servers. Everything was working fine. But less than 24 hours after the upgrade, the number of tickets available have suddenly decreased, provoking an increasing lag. I had then downgraded to 3.0.3. and everything was running fine.

On wednesday, as 3.0.5. was released, I've upgraded all the servers. The same scenario had happened. I've downgraded again to 3.0.3. and everything runs like a charm…

I have added to this message a screenshot of the "Tickets available" chart from the primary server. You can see the shutdown related to the upgrade at 6PM CEST last wednesday, and the strange behavior of the tickets yesterday after 1PM CEST.

Thanks for your help !

Sélection_002.bmp

Sicabol

unread,

Jul 31, 2015, 11:08:13 AM7/31/15

to mongodb-user, sic...@gmail.com

In order to be more precise, apparently the cache usage has gone wild before the tickets problem. Usually the cache usage stays constant.

I'm using the PHP driver (1.6.10).